Transcript
S/ M No. : OSPC790001
Ser v ice M a nua l Portable DVD Player Model: DPC-7900 Series
C aution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list.
May. 2005
No.: Revision:
0.1
Date:
Service Manual for
Portable DVD DPC-7900 Series
Name of Company
DAEWOO ELECTRONICS CORP.
Approved by
SIGNATURE
DATE
APPROVED BY
DATE
/ REVIEWED BY / PREPARED BY /
Please return 1 copy for our confirmation with your signature and comments.
Elliott Chang
18th.Dec.2005
Revision Record Date
Rev No
Section
17/ Dec./ 2005
0.1
New edition
Description
Design and specifications are subject to change without notice. All trademarks used in the specifications are the property of their respective owners.
1. General Descriptions ………………………………………………… 1 1.1. Model Features 1.2. Information
………………………………………………………… 1
………………………………………………………………… 2
2. Electrical Characteristics ……………………………………………
3
2.1. Optical Characteristics ………………………………………………………3 2.2. Electrical Characteristics ………………………………………………
3
2.3. System Block Diagram
4
……………………………………………………
2.4. Schematic Circuit Diagram ………………………………………… 5 3. Power ……………………………………………………………………… 11 3.1. Power Supply
……………………………………………………………… . 11 3.2. Rechargeable Battery . ……………………………………………………… . 11 4. Dimension & Physical Characteristics …………………………. 13 4.1. Outline Dimension
………………………………………………… 13
4.2. Physical Characteristics ………………………………………………… ..13 4.3. Exploded View
……………………………………………………………… 14
5. Regulatory Standards …………………………………………… 19 5.1. Safety ………………………………………………………………………..19 5.2. EMI ………………………………………………………………………………. 19 5.3. Ergonomics
………………………………………………………………… 19
6. Service Tools and Equipment ………………………………… 20 6.1. Service Tools and Equipment . ………………………………………
20
6.2. Storing and Handling Test Discs …………………………………… 20 6.3. Notes ……………………………………………………………………… 21 7. Spare Parts ………………………………………………………… 23 7.1. key Parts List ……………………………………………………………
23
8. Trouble shooting …………………………………………………………24 8.1. Error Code Table …………………………………………………… 24 8.2. Debug & Trouble Shooting
…………………………………………… 25
1 General Descriptions 1.1 Model Features Video: DVD Playback, MPEG4(option) ,DivX(DivX Model),Kodak Picture CD compatible & JPEG readable Audio: CD, CD-R, CD-RW, MP3, WMA Playback Firmware Upgradable Dolby Digital Output 7" active-matrix TFT screen, 16:9 wide aspect ratio Composite Video Output Ultra dimension & light weight: 205mm(L) x 163.5mm(W) x 38mm(H) / 900g (around) Slim size wireless remote control Rechargeable battery pack 12-volt car cigarette lighter cable Universal AC/DC power adapter Audio/video cable for TV connection Built-in stereo speakers Two Stereo headphone jack Parental Lock Anti Shock Protection
-1-
1.2 Information Disk Format
DVD, VCD, CD, MP3, CD-R, CD-RW, MPEG4 (OPTION),JPEG, Kodak Picture CD, DivX(DivX Model),WMA
Video System
NTSC / PAL/Auto
Video Decompression
MPEG-2 (ISO/IEC-13818), MPEG-1
Video Output
800~1200mVpp/75 ohm
Audio Characteristic
2-Channel Analog
Analog Output
1.0~2.0Vrms/10K ohm
Frequency Response
DVD: 48kHz Sampling: 20Hz-20kHz CD: 20Hz-20kHz
S/N Ratio
<= -65dB
Dynamic Range
<= -85dB
Audio Output Noise &Distortion Less than<= 0.01% Digital Output
SPDIF
Headphone Jack
32ohm (30Mw) > 8ohm
LCD Display
7” active-matrix TFT type
Audio / Video Section
Audio input/output x1 Video input/output x1 S-Video / Coaxial output x1
Audio Section
Digital Output: Coaxial x1
Headphone Jack
Headphone Jack x1
Line Voltage
AC 100~240 VAC ± 10%(50/60Hz), (Adapter)
Power Consumption
12W (DC 12V, 1.0A)
Remote Control
DC 3V
Dimensions
205mm(L) x 163.5mm(W) x 38mm(H)
Weight
900 g (around)
Accessories
Slim Size Remote Controller with 3V Battery 12-volt Car Cigarette Lighter Cable Universal AC/DC Power Adapter Audio Cable / Video Cable
Infra-red
Ni-MH Rechargeable Battery Pack S-video / Coaxial cable
-2-
2 Electrical Characteristics 2.1 Optical Characteristics Parameter
Specifications
Unit
Screen Size
7.0 (16:9 diagonal)
inch
Display Format
1400 (H) 234 (V)
dot
Active Area
154.08 (H) 86.08 (V)
mm
Dot Pitch
0.107 (H) 0.370 (V)
mm
Pixel Configuration
Stripe
Outline Dimension
166.0 (W) 100.0 (H) 7.2 (D)(typ.)
Surface Treatment
Anti-Glare and Hard Coating
Weight
180 ± 10
mm
g
2.2 Electrical Characteristics DVD/ SVCD/ VCD/ CD system decoding, packeted element streams and audio, video element streams. Fully digital servo processing (focusing, tracking, sledge and spindle servo control) Fully digital calibration (focusing/ tracking offset and balance) Digital phase lock loop with phase equalizer Support Audio/ Video/ Photograph decoding and programming Programmable Y/C delay relationship Embedded micro-controller, up to 50MHz operating frequency 1.8V and 3.3V dual power supply, 208 pin PQFP
-3-
2.3 System Block Diagram 2.3.1. The System Block Diagram & the Block's Function Description
INVERTER
DISPLAY 7” TFT LCD PW070XU3
DC To DC MP1580 TFT LCD Driver IR3Y29B +HX8806
Loader DM-520A 2. Servo +MPEG MT1389D/MT1389C
1.
-4-
(1)POWER_MPS
2.4 Schematic Circuit Diagram
CTR_5V
CTR_5V
R156 4.7k/open
RM12
330O
+3.3V
9VIN
RM11 4.7K/open
QM1 OPEN/3904
9VIN
NCTR_5V
NCTR_5V
NCTR_5V
C119 10uF
33R
OPEN
0.01uF
CM1
RM4 39K
RM9 OPEN
330O
R1
Q1 3904
1 2 3 4
UM1
MPS1580
BS Sync Vin EN Vsw Comp GND FB
CM8
MPS1580
BS Sync Vin EN Vsw Comp GND FB
0.01uF UM2 1 2 3 4
D1 2 LED1
1
8 7 6 5
8 7 6 5
2 RM5 10K
1 DIODE
DM2
+3.3V
DELETA
DIODE
DM1
LM1
22uH
CM3
100pF 30.9K
CM9
0.022uF
0.022uF
CB60 0.1uF
CB59 0.1uF
100pF 16.9K
LDO_AV33
RFV33
RM8
CM10
RM6 10K 1%
22uH
LM3
RM3
CM5
RM1 10K 1%
RM10 10K
L26
FB
L27
FB
+
+
LM2
6.8uH
6.8uH
C136
22uF
LM4
22uF
C135
RFV33
C120 220uF/6.3V/lu
LDO_AV33
C121 220uF/6.3V/lu
100uF/10V/LU
CM2
CM7 220uF/6.3V/LU
+5V
+3.3V
+5V
+3.3V
-5-
2 1
C4 10uF
RM2
RM7
1
3 2 1 3
R2
OPEN/10K 1
3 2
C118
9VIN 9VIN
+3.3V
1
+ -
C2
+
D2 2 RB053L-30 0.1uF
+5V L2
1
2 1
20uH
U1
OUT BP
3 4
RT9167A-185CS IN SHDN-
C7 100uF/10V/LU
C5 0.01uF
2
R11 20K
C1 100uF/6.3V/LU
1
1
C6 100uF/6.3V/LU
C10 47uF/25V/LU
Q2 BSH105 1
D4
1N5819
D5
2
2
R14 1M
1N5819
V18
VCC
C11 22uF/25V/LU
C15 0.1uF
+3.3V
V18
VCC
+7.5V_TFT
220R
+3.3V
+5V
CTR_LOAD
+5V_TRAN
20uH
POWDET_MPEG
POWDET_MCU
CTR_TFT5V
CTR_AUDIO
L1
C9 47uF/25V/LU
-10V_TFT
R12
R13 20K
+ C16 100uF/16V/LU
+5V
+3.3V
CTR_LOAD
CTR_AUDIO
POWDET_MCU
CTR_TFT5V
+ C13 47uF/25V/LU
+15V_TFT
+5V_TRAN
POWDET_MPEG
C12 0.1uF
1
1 C3 47uF/25V/LU
POWDET_MCU
POWDET_MPEG
D3 1N5819
2 7 5
R17 200K
+
CON1 4 VOUT PDET VIN 3 OUT VIN 2 1 GND BATTERY 1 3 2 0.1uF
+3.3V
+3.3V R5 3K
R7 3K
POWDET_MCU 1
U3A LM393
VSYNC#
1
J1
R3 10k(8.2K)
2 3
7
1
FB
LX
EXT
U5 TER9.5*100M
LFB
LDOO
CE
U22 RT9262 8 4 3
R16 0R
-10V_TFT +15V_TFT +7.5V_TFT +3.3V_TFT +5V_TFT
1
-6-
U3B LM393
+5V_TRAN +5V_TRAN
R15 1.6M
6
6 5
BA05SFP 4 5
C17 1000pF
6
R4 47K
R10 47K
U6
VOUT NC
VIN CTL
+3.3V_TFT
C18 0.1uF
R18 560K
-10V_TFT
+3.3V_TFT
+7.5V_TFT
+15V_TFT
8 8
GND GND GND GND
5 6 7 8 +5V_TRAN +5V_TFT
7 5 3
7 5 3 3
1
2
2 1
+3.3V
GND R159 4.7K/open
6
1
8 4 8 4
R6 3.3K
R8 0(1.8K)
R9 3.9K
R160 330O OPEN/10K 1
4.7k/open R158 R157
GND
Q18 OPEN/3904
1
6 VDD GND 1
3
POWERJACK
9VIN
C14 0.1uF
HSYNC# CTR_TFT5V
3 2
1
(2) POWER FOR TFT
L51 RFV33
DV33
OPO
R173 150k
R169
0
RFV33
RFV33
TP4 TP5 TP6
L33
FB
L36 10uH 3216
+
ADACVDD3
R176 6.8
ADACVDD3
C88 16800PF 0603C
+
C74 0.1uF
CE48 100uF/16v
C8 +c88=17nf 0603C
0.1uF
CB75
C75
CB72 0.1uF
C76
RFVDD3
2200pF
C93 0.1uF
1
AGND DVDA DVDB DVDC DVDD DVDRFIP DVDRFIN MA MB MC MD SA SB SC SD CDFON CDFOP TNI TPI MDI1 MDI2 LDO2 LDO1 SVDD3 CSO/RFOP RFLVL/RFON SGND V2REFO V20 VREFO FEO TEO TEZISLV OP_OUT OP_INN OP_INP DMO FMO TROPENPWM PWMOUT1/ADIN0 TRO FOO FG/ADIN1 GPIO0 GPIO1 GPIO2 IOA2 DVDD18 IOA3 IOA4 IOA5 IOA6 IOA7 HIGHA0
PLLVDD3
0.01uF
47uF/16v
+ CE53
V1P4
C15 closed to Pin186 + CE52
V20
1uF
47uF/16v
R175 15k C87 0.1uF R199 R200 R201 R202 C110 0.015uF
L41
V1P4 V1P4
33k 33k 15k 10k
MO_VCC
0
FOO TRO FMO DMO
RESET#
10uF/25v C79
TP2
C80
JITFO
10uF/10v
C71 R166
750k
390pF
C81 1500pF 0603C
MT1389D V1.7
V18 TP42
TP38
D6 1N4148
TP43
JITFN TP3
TP8
TP40
TP1 URST#
TP44
R190 10k
DV33
100k
R23
39k
R22
TP39
TP37 TP46
+3.3V
47uF
+ C19
TP41
UQ216
U17 MT1389D
ACLK ABCK DVSS GPIO5 GPIO4 GPIO3 DVDD18 RA4 RA5 RA6 RA7 DVDD3 RA8 RA9 RA11 CKE RCLK DVSS RA3 DVSS RA2 RA1 RA0 RA10 DVDD3 BA1 BA0 RCS# RAS# DVDD18 CAS# RWE# DVSS DQM1 RD8 RD9 RD10 RD11 RD12 DVDD3 RD13 RD14 DVSS RD15 RD0 RD1 RD2 DVSS RD3 RD4 RD5 RD6 RD7 DQM0
0.1uF
CB71
DACVDD3
TP9
TP45
L3
FB + CE47 10uF/25v
DV33
V18
1 2 3 4
+3.3V
C114
XI
2.7u, DIP
R21
0
R182 2K
TP10 TP11 C116 22p
1
U20A 2
100k C27MHz 2
74HC04 R218 Y1 1
CB81
CB88
0.1uF
CB82
0.1uF
CB89
0.1uF
CB83
0
U20B
XO
74HC04
INT/EXT
4
R167 0
+ CE46
10uF/25v
R217
R
INT/EXT
[4]
[3] [3] [3]
[3] [3]
[3]
[3]
[3] [3]
[3] [3] [3] [3] [3]
L34 FB
[5] [5] [5] [4]
[5] [5]
[5]
[3] [3]
[5]
[5] [1]
[4] [4]
CTR_TFT5V AVCC [1 ] PCE# [3] PWR# [3]
HSYNC# VSYNC#
Y[3..6]
[3]
MUTE_DAC URST#
A[0..21] AD[0..7]
PRD# PWR# PCE#
FLASH MA[0..11]
DQ[0..15] BA[0..1]
DQM[0..1] DCLK
DCKE CAS# RAS# WE# CS#
MEMORY
SCL SDA
ASDAT[0..2]
IIC
ALRCK ACLK ABCK ASPDIF
AL AR VSCK VSDA
AUDIO INTERFACE
ALRCK ACLK ABCK ASPDIF
ASDAT[0..2] AL AR VSCK VSDA
SCL SDA
DCKE CAS# RAS# WE# CS#
DQM[0..1] DCLK
MA[0..11] DQ[0..15] BA[0..1]
PRD# PWR# PCE#
A[0..21] AD[0..7]
FS0 VIDEO INTERFACE
Y[3..6] FS0
MUTE_DAC URST#
HSYNC# VSYNC#
PCE# PWR#
CTR_TFT5V
R220
3
0.1uF
CB70
APLLVDD3
C117 22p
0.1uF
0.1uF
TROUT TRIN LIMIT
CB80
CB87
0 0 0
0.1uF
0.1uF
ALRCK
CB79
CB86
R191 1k 0603R
0.1uF
0.1uF
V18
CB85
0.1uF
CB92
DV33
DV33
0.1uF
0.1uF
CB91
CB84
0.1uF
CB90
0.1uF
0.1uF
C95
L42
R187 R188 R189
1000p
FS VREF
ACLK ABCK
MA4 MA5 MA6 MA7 MA8 MA9 MA11 DCKE DCLK MA3 MA2 MA1 MA0 MA10 BA1 BA0 CS# RAS# CAS# WE# DQM1 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM0
J8
RS-232
4x1 W/HOUSING
+3.3V
R183 4.7k
162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109
RxD TxD
14 7
ADIN OPOP+ R174 680k V1P4
CB74 0.1uF
RFOP RFON
RFVDD3 FB
R20
1
14 7
C73 0.1uF/N.C
C83 2200pF
47uF/16v
+ CE51
V2P8
CE49 CE1 + 1000uF/10v +ce49=1000uf
CB73 0.1uF
TP17
TP28 TP29 V2P8 V20 V1P4 FEO TP33 TEO TP34 TEZISLV OPO OPOP+ DMO FMO TROPEN
XI XO
2200pF 680k
R 1
J6 6x1 W/HOUSING_180 C97 1uF C98 1uF C100 1uF C101 1uF
SUBA SUBB SUBC SUBD E F MDI1 MDI2 LDO2 LDO1
0.1uF
C104
TP30 TP31 TP32
R
0
FS0 ASDAT2 ASDAT1 ASDAT0 ALRCK
0.47uF/N.C C82
0.1uF C77
C72
L37
10k
R168
R177 R181
V18 C99 C102 C
TP18 TP19 TP20 TP21
CB77 0.1uF
R193
TRO FOO ADIN VSYNC# HSYNC# R194 A2
20pF C84
L50
R172 150k
SPSP+ LIMIT SL+ SL-
DV33
V18
R185
1uF
B A D C RFO C D A B
TP22 TP23 TP24 TP25 TP26 TP27
TP35
R192
STBY
Y4 DACVDD3
FB 220uF/16V
RFV33
CE78 220uF/16V
LDO_AV33
CE77 220uF/16V
RFV18 CB76
TP12 TP13 TP14 TP15 TP16
C103
RFVDD3
C105 V1P4 C
V18
R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
4
AL
+ CE100
+
+
FB 0.1uF
AVCC
CE54 100uF/16v
V18 A3 A4 A5 A6 A7 A8
0.1uF
C107 C108 C109 330pF 330pF
VCC
1
DMSO
3
INT/EXT
2 TFT_SWITCH
C78 RFVDD3
100k R170 1000pF 0.1uF
CB200 0.1uF
CB107 0.1uF
CB108 0.1uF
AVCC
FB
+
E3 A18 A19 DV33
FOSO TRSO FMSO DMSO
R211 20k
C112 150pF
SW2
0.047uF C92
+3.3V +3.3V
LDO_AV33
L4
GND Vs(Vc) Vcc E F D A B C VRF(1.4V) GND(NC) PD GND VR LD(CD) LD(DVD) GND VR Vcc PD(Monitor) Fo+ FoTr+ Tr-
L38 C106 0.1uF
2
C C
LDO2
LDO_AV33
LDO1
R210 10k
20k
TP50 TP52 MO_VCC
R206 1
R212
R155
+
V33
FB
L52
FB
VCC FB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
CB78 0.1uF
B 2SB1132
CE55 47uF/16v
47uF/16v
+ CE56
R205 1
SPSP+
FOSO
V1P4
TRCLOSE
10K
DACVDD3 ASPDIF
SDA RESET# MUTE_DAC RXD TXD TRCLOSE ICE URST# IR INT0#
Very Important to reduce Noise
1
4.7 4.7 2SB1132
FF+
14 13 12 11 10 9 8 29 7 6 5 4 3 2 1
47uF/16v
+ CE58
K1 3 1
POWERON/OFF
TROPEN
2
R69 10K
DACVDD3 Y3 VSTB VSDA SCL
L39 10uH
1
Q26
2SB1132
Q25 1
R197 R198
TP48
G1
VOFC+ VOFCVOSL+ VOSLPGND PVCC1 VCC
VNFFC VOSL VINSLVINSL+ CF2 CF1 VINFC
0
10K
AR ADACVDD3 AD7 A17
10
10
L40
10uH
PREGND VINLD CTK2 CTK1 VINTK BIAS STBY
G2
VOTK+ VOTKVOLD+ VOLDPGND VNFTK PVCC2
U38
TP47
15 16 17 18 19 20 21 30 22 23 24 25 26 27 28
BA5954
R19
R72
SW1 PUSHBUTTON
APLLVDD3 Y6 Y5 A0 UWR# URD# RGB_SWITCH VSCK
HITACHI HOP1200/1200N(1240)
R204 1 T-
T+
CB95
TRSO V1P4 STBY
FMSO
0.1uF
CTR_5V
3
2
TROUT
PLLVDD3 A1 PRD#
GND V20 AVCC1 E F D A B C RFO GND MDI1 GND R195 LD-CD LD-DVD R196 AVCC1 MDI2
SL+ SL-
CB93
R215
4
1
DV33
0.1uF C89
0 0 JITFN JITFO XTALI R178 R179 RFV18 AD0 AD1 AD2 AD3 AD4 AD5 AD6 A21 ALE
DV33
XTALI
[5]
C115 C
[5]
IR
ACLK ABCK ASDATA3 MC_DATA ASDATA2 ASDATA2 VSCK VSTB VSDA
IR1
VCC
C33 100pF
CE16
1 2 3 4 5 6 7 8 9 10 11
100uF/6.3V/LU
1 2 3 4 5 6 7 8 9 10 11
+
1
+3.3V
CON2
R28
4.7K
CONTROLBORD,11P,PITCH=1.5MM
-7-
RFVDD3 C91 0.047uF
A15 A14 A13 A12 A11 A10 A9 A20 PCE#
HA1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
HEADER 24 SMD0.5 TOP
R203 1
TP49 TP51 MO_VCC
20k
C111 150pF
10k
HOP1200/1200N(1240)
R209
0.1uF
TRIN
PWR# A16
3 2 1
0.033uF C90 C94
216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 AVDD3 IREF RFGC OSN OSP RFGND CRTPLP HRFZC RFRPAC RFRPDC RFVDD3 ADCVSS ADCVDD3 LPFOP LPFIN LPFIP LPFON PLLVDD3 IDACEXLP PLLVSS JITFN JITFO XTALI XTALO RFVDD18 RFGND18 ADACGND AL VCM AR ADACVDD3 APLLVSS APLLCAP APLLVDD3 R B DACVSSA G DACVDDA DACVSSB DACVDDB CVBS DACVSSC FS VREF DACVDDC SPDIF MC_DATA DVDD3 ASDATA3 ASDATA2 ASDATA1 ASDATA0 ALRCK
IOA18 DVSS IOA19 DVDD3 IOWR# A16 DVDD3 HIGHA7 HIGHA6 HIGHA5 HIGHA4 HIGHA3 HIGHA2 HIGHA1 IOA20 IOCS# DVSS IOA1 IOOE# DVSS AD0 AD1 AD2 AD3 AD4 AD5 AD6 IOA21 ALE DVDD18 AD7 A17 DVDD3 IOA0 UWR# URD# UP1_2 UP1_3 GPIO6 UP1_4 UP1_5 UP1_6 DVSS UP1_7 UP3_0 UP3_1 UP3_4 UP3_5 GPIO7 ICE PRST# IR INT0# DVDD3 2
TOP
6 5 4 3 2 1 2 3 3 2
55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 1
+
1
(3) SERVO&MPEG
(4) SDRAM&FLASH&EEPROM
MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 DBA0 SDCLK SDCKE
38 37
23 24 25 26 29 30 31 32 33 34 22 35 20 21
21 22 23 24 27 28 29 30 31 32 20 19 35 34
NC NC
U7 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 BA/A11 CLK CKE CS RAS CAS WE DQML DQMH NC NC VSS VSS
DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 VCC VCC VCCQ VCCQ VCCQ VCCQ VSSQ VSSQ VSSQ VSSQ
VSSQ VSSQ VSSQ VSSQ
VCCQ VCCQ VCCQ VCCQ
VCC VCC VCC
DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15
2 3 5 6 8 9 11 12 39 40 42 43 45 46 48 49 1 25 7 13 38 44 4 10 41 47
6 12 46 52
3 9 43 49
1 14 27
2 4 5 7 8 10 11 13 42 44 45 47 48 50 51 53
ESMT M12L16161A-7
DQML DQMH
CS RAS CAS WE
CLK CKE
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10/AP A11 BA0/A13 BA1/A12
U9
26 50
33 37
18 17 16 15
MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 DBA0 DBA1
19 18 17 16
DCS# DRAS# DCAS# DWE#
SDCLK SDCKE
15 39
14 36
DCS# DRAS# DCAS# DWE#
DQM0 DQM1
DQM0 DQM1
36 40 54 41 28
ESMT M12L64164A/N.C TSOP54
VSS VSS VSS
DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 SD33 SD33
DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 SD33
SD33
MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 DBA0 21 22 23 24 27 28 29 30 31 32 20 19
18 17 16 15
35 34
DBA1 DRAS# DCAS# DWE# 14 36
SDCLK SDCKE
DQM0 DQM1 33 37 26 50
R61 R62
U11 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 CE OE WE
U8 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 BA/A11 CLK CKE CS RAS CAS WE DQML DQMH NC NC
16Mb
32Mb
R R
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
BYTE
WP/ACC
VCC GND1 GND2
VCC VCC
DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15
VCCQ VCCQ VCCQ VCCQ VSSQ VSSQ VSSQ VSSQ
27 46
37
47
2 3 5 6 8 9 11 12 39 40 42 43 45 46 48 49 1 25 7 13 38 44 4 10 41 47
AA20 AA21
14 R67
29 31 33 35 38 40 42 44 30 32 34 36 39 41 43 45
ESMT M12L16161A-7
VSS VSS
RESET
TSOP 48 pin
STM29W160/MX29LV800(160)
12
26 28 11
25 24 23 22 21 20 19 18 8 7 6 5 4 3 2 1 48 17 16 9 10
A21
A20
delete
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 AA20 AA21 PCE# PRD# PWR#
FLASH_VCC
R70 10k
FLASH_VCC
8M 16M 32M FLASH
SD33
DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 SD33
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7
A0
FLASH_VCC
0.1uF
CB54
10k
0.1uF
CB53
DV33
VCC DV33
+ CE22 220uF/16V
220uF/16V
+ CE23
FB
FB
NO_USE
L23
L24
CB37
CB38
CB39
CB40
0.1uF
CB41
0.1uF
CB42
0.1uF
CB43
SD33
CB36
0.1uF
0.1uF
0.1uF
CB48
33
33
DCLK
DCKE
BA1
BA0
RN1
R63
33
CS# RAS# CAS# WE#
R64
33
1 3 5 7
DBA0
R65
DCS# DRAS# DCAS# DWE#
CB47
SD33
0.1uF
0.1uF
CB46
0.1uF
0.1uF
CB45
0.1uF
0.1uF
CB49
SD33
47uF/16V
+ CE24
FLASH_VCC
+ CE25 47uF/16V
DBA1
R66
2 4 6 8
0.1uF
CB44 0.1uF
SD33
0.1uF
CB50
L25
CB51 0.1uF
SDCKE
33x4
SDCLK
SD33
CB52
0.1uF
[2] [2] [2] [2] [2] [2] [2] [2] [2]
[2]
PCE# PRD# PWR#
MA[0..11] BA[0..1] DQM[0..1] DCLK DCKE CAS# RAS# WE# CS#
DQ[0..15]
DQ[0..15]
MA[0..11] BA[0..1] DQM[0..1] DCLK DCKE CAS# RAS# WE# CS#
A[0..21]
AD[0..7]
A[0..21]
PCE# PRD# PWR#
[2]
DRAM
[2] [2] [2]
AD[0..7]
FLASH
[2]
SCL SDA
GND
IIC
SD33
[ 1,2,3,4,5 ]
[1] [1]
680
R254
SCL SDA
R68
8 7 6 5
680
DV33 VCC
SCL SDA
[2] [2]
GND
DV33
VCC WP SCL SDA
EEPROM 24C16 SOP-8
NC NC NC GND
U12
VCC
1 2 3 4
-8-
(5) VIDEO OUTPUT ASPDIF
Y6
Y5
Y4
Y3
R153
100R
R146 150R
R149 150R
R151 150R
R152 75R
VIDEO_TV
R154 100R
L18
C43 47pF
L21
C48 47pF
L22
C51 47pF
L45
C128 47pF
C131 0.1uF
C132 330pF
C133 270pF
1.8uH
1.8uH
1.8uH
1.8uH
C44 47pF
C49 47pF
C122 47pF
C113 47pF
C134 470pF
J10 VIDEO VIDEO COAXIAL GND GND
SVIDEO_Y
SVIDEO_C
CVBS_TFT
CVBS_OUT
VIDEO/COAXIAL
1 2 3 4 5
L19 L20 2.7uH
2.7uH
C45 270pF
C46 270pF
TFT_OUT
CVBS_OUT
1 2 3 4 5
C129 OPEN
J7 S_Y S_Y S_C GND GND S_VIDEO
L43
0 C123 OPEN
L44
1
0
SCALE
R147
P/N
TFT_CVBS
C124 330pF-OPEN
VIDEO_TV C130 330pF-OPEN
4.7K
R150
1
4.7K
+5V
+5V
R145 4.7K
2
C
R148 4.7K
Q17 3904
-10V_TFT 9VIN +3.3V_TFT +5V_TFT +7.5V_TFT +15V_TFT
E3 2N3904
B
Q16 3904
1
1
+5V
+5V_TFT
+5V_TRAN
Y[3..6]
ASPDIF
INT/EXT
P/N
SCALE
CVBS_TFT
CVBS_OUT
TFT_OUT
+5V
+5V_TFT
+5V_TRAN
Y[3..6]
ASPDIF
INT/EXT
P/N
SCALE
CVBS_TFT
CVBS_OUT
TFT_OUT
CON4
SCALE
TFT_CVBS F2
FB
FB
FB
FB
7 -10V_TFT
8 GND
10 VIDEO
11 VGND
12 MODE
13
F3
FB
6 +9VPOWER
+5V_TRAN
F4
5
F1
F5
FB
F11
F9
FB
FB
FB
FB
1 HVGND
2 +15V_TFT
3 +7.5V_TFT
4 +5V_TFT
TFT I/O
F12
C127 0.1uF
F13
+3.3V
9 NTSC/PAL
-10V_TFT
F6
FB
9VIN
F8
FB
FB
F7
F10
+3.3V_TFT +5V_TFT +7.5V_TFT +15V_TFT
+
C126 330uF/6.3V
1
-9-
3 2
3 2
ACLK ALRCK ABCK ASDAT0
VCCAUD
MUTE_DAC SHUTDOWN
+C63
VCCAUD
SHUTDOWN
ACLK ALRCK ABCK ASDAT0 MUTE_DAC
SACLK
SLRCK
SBCLK
SDAT0
4
3
2
1
U16
SDATA
ACLK ALRCK ABCK ASDAT0
VA
AOUTL
AGND
DEM/SCLK
AOUTR
CS4334-OPEN
LRCK
6
7
8
9
10
MCLK
AOUTR
GND
8 7 6 5
1 3 5 7
RN3
33x4
2 4 6 8
AL
DAC_ML A_AVDD
SACLK SLRCK SBCLK SDAT0
C58 0.1uF
DAC_MR
C53 10uF/16V
C61 10uF/16V
R88 10K
C52
C59 220pF R100 10K
R89 5.1K
220pF
C55 1000pF
R101 5.1K
C64 1000pF
VREF5V
VREF5V
R92
R102
10K
C57 0.1uF
10K
R85 15K
R97 15K
2 3
5
6
C56 47uF/10V
+
U15A MC33202D 1
VCC
U15B MC33202D 7
A_IN/OUTL L17
L16
22uH
22uH
C54 10uF/16V
R95
R93 100K/?
C60 10uF/16V
0R
0R
R103 100K/? R104
C41 470pF
C67
C24
R109
1.8K
R90 1.8K
R99
10uF/6.3V
C42 470pF
4.7K
10uF/6.3V
J9
R94
560R
R96 560R
4.7K
1
1
+3.3V
C40 + 100uF/6.3V
R132 22K
A_R_SPEAKER
A_L_SPEAKER
R127
AUDIOL AUDIOL AUDIOR GND GND AUDIO L/R
1 2 3 4 5
Q8 3904
3904 Q9
1
AOUT_L
3
1N4148
D7
AOUT_R
1
A_MUTE
D8 1N4148 R133 470R
Q10 8550
2
1
2
R114 3.3K
2
MUTE_IN
C39 100uF/6.3V
A_MUTE
C38 + 100uF/6.3V
1N4148
D9
R111 560R
+
1
Q11 3906
C34
0.1uF
A_R_SPEAKER
C37 +
A_L_SPEAKER
VCC_AUD
C35 +
C28
2.2uF/6.3V
C36
2.2uF/6.3V
47uF/10V 47uF/10V
C29 1uF
C30 1uF
R116
1k
R122
R117
open
R123
SE/BTL
ROUT+
4.7K
HP/LINE
VOLUME
GND
RHPIN
SEDIFF
ROUT-
RLINEIN
SEMAX
GND
BYBASS
GND
LOUT+
SHUTDOWN
FADE
LHPIN
LOUT-
PVDD
LLINEIN
LIN
VDD
RIN
PVDD
U19
3.9k
1
2
3
4
5
6
7
8
9
10
11
12
TPA6011
R118
3.3K
24
23
22
21
20
19
18
17
16
15
14
13
1 2 3 4 5
J4
1 2 3 4 5
VOLUME 10K
C182 2.2uF
SHUTDOWN
J5
PHONEJACK
2 3 4 5 6 1
VCC_AUD
R115
470R
R119 1K
L14
10uH
R129
200K
ROUT+ ROUTLOUT+ LOUT-
R130
0R
1 2 3 4
R120 1K
L13
10uH
R131 0R
SPEAKER
ROUT+ ROUTLOUT+ LOUT-
CON3
+C26 10uF/6.3V
C31 C32 C85 C86
PHONE_ON
A_IN/OUTR
+
R139 open
R134 open
INT/EXT
AOUT_R
A_IN/OUTR A_R_SPEAKER
U21 F_TB3GA4.5Z
INT/EXT
A_L_SPEAKER A_IN/OUTL AOUT_L
+
R142 3K
-
C62
A_AVDD
U27 SDATA
AOUTL
VA
LRCK
DEM/SCLK
MCLK
+5V
1
+
VCC
R98 47R 220uF/6.3v 1 2 3 4 5 FILT+
CS4344-OPEN
CVBS_TFT TFT_OUT CVBS_OUT
U23 F_TB3GA4.5Z
CVBS_TFT
+C27 10uF/6.3
- 10 -
VQ
CVBS_TFT TFT_OUT
680pF
VREF5V
AR
+3.3V
MUTE_IN
R144 1K
680pF
R110 1K/5k
C21 0.1uF
R136 560R
Q13 3904
Q14 9014
680pF
VCC
+
R113 1K/5k
VCC_AUD
4.7K 1
TFT_OUT
1
3 2 2 3
+ +
4 8 4 8
+ + CVBS_OUT
680pF
+
+
0.1uF
C20 47uF/10V
L15
R138 4.7K
R141
CVBS_OUT
2 1
220uH
SHUTDOWN
R135 200K
Q12 3904
Q15 3904
2 3
VCC
4.7K 1
1
2 3 4 2 3 4
1 +
7 6 5
7 6 5
1
8
+ 8
+3.3V
R140
4.7K
3
-
4 3 2 4 3 2 5 6 7
-
1
VCC
R137 4.7K
R143
3 2
5 6 7
2
+3.3V
MUTE_DAC
3 2
3 2
+
(6) AUDIO OUTPUT
1
3 Power 3.1 Power Supply Input voltage: Normal voltage: 100 to 240 Vac. Variation range: 90 to 264 Vac. Input frequency: Normal frequency: 50 to 60 Hz. Variation range: 47 to 63 Hz. Input current: 0.6 arms max. at any input voltage and max. DC output rated load. Inrush current: 70 amps max. cold start at 240 Vaz. Input, with rated load and 25 ambient. AC leakage current: 0.25 mA max. at 240 Vac. Input.
3.2 Rechargeable Battery Output Voltage8.4~6.0V Cut-off Voltage5.7~6.0V Charge voltageThe battery pack should be charged when the input voltage is from11V to 15V Chargera.) Hiteker DC12V/2.0A adaptor. b.) Hiteker DC12V/2.0A adaptor and Portable DVD LED is in red color when the battery pack is in charging; and turns into green color when batter pack is full. If the battery pack is in Full status, no matter use adaptor charge directly or link DVD to charge again, the LED must be turn into green color in 15 min. The cycle life of battery pack has more than 300 cycles. Charge: The battery pack must be able to charge when used the Hiteker DC12V/2.0A adaptor or Hiteker DC12V/2.0A adaptor and portable DVD (power off status). Discharge: Using the battery pack as the power source for portable DVD that in DVD disc playing mode, the discharging time must be exceed 2.5hrs. 3.2.1 Electrical Protection The battery pack shall be capable of withstanding a continuous short circuit output without damage. - 11 -
The battery pack shall return to normal operation only after the fault has been removed. A thermal fuse must be added on the surface of cell body to protect the battery pack. A polyswitch must be add to protect the battery pack. Charge & Play Time of Battery Pack
Ni-MH 2400mAh (6S1P)
Charge Time (hr)
DVD Title Play Time (hr)
4~5
2.5
Styling
For DPC-7900 Series
- 12 -
4 Dimension & Physical Characteristics 4.1 Outline Dimension 205mm(L) x 163.5mm(W) x 38mm(H)
4.2 Physical Characteristics
1
15
15
2 3 4 5 6 7 8 9 10
11 12 13
14
1.LCD SCREEN 3.DISC MENU 5.TV MODE 7.SUB TITLE 9.PAUSE 11.ENTER 13.SETUP 15.SPEAKERS
2.TFT ON/OFF KNOB 4.PREV 6.NEXT 8.PLAY 10.STOP 12.DIRECTION BUTTONS/FR,FF 14.OPEN/PUSH
- 13 -
4.3 Exploded View 4.3.1 DVD Door & Mainbody_top module
- 14 -
4.3 Exploded View 4.3.2 Keyboard & Mainbody_top module
- 15 -
4.3 Exploded View 4.3.3 Mecha & Mainbody_bottom module
- 16 -
4.3 Exploded View 4.3.4 Mainbody module
- 17-
4.3 Exploded View 4.3.5 Display module & Mainbody module
- 18 -
5 Regulatory Standards 5.1 Safety UL FDA LVD
5.2 EMI CE FCC
5.3 Ergonomics Dolby
- 19 -
6 Service Tools and Equipment 6.1Service Tools and Equipment Table
Application General
Name DVD Testing Disc General Tools
Confirm
screwdriver etc.
CD Testing Disc VCD Testing Disc
Adjust
Oscillograph Probes AV Cables TV Monitor Searing-iron
Grounding for electrostatic breakdown
Antistatic wrist strap Conductive material
steel sheet
6.2 Storing and Handling Test Discs It is important for a DVD testing disc keeping its surface precise. Please care for storing and using it. 1. Do not place the disc on worktable directly after using. 2. Do not store discs in places subject to direct sunlight or near heat sources.
- 20 -
3. Do not place the disc on a glass surface. It may damage the disc. If this happened, please use a new testing disc adjust DVD player precision.
6.3 Notes PLEASE READ ALL NOTES GIVEN IN THIS MANUAL. ■ Locate ● Place the unit on a firm, flat surface. ● Do not place in a high temperature (upwards of 40
) or high wet
(upwards of 80 percent) area. ● Do not place in an area with a lot of dust. ● Keep away from direct sunlight &domestic heating equipment. ■ Do not fall any objects into the unit. ● Care should be taken so that liquids are not spilled into the unit openings. Such situations could result in fire or electrical shock. ● Keep the DVD video player away from any magnetic articles such as speaker etc.
■ Superposition ● Please place the DVD player horizontally. Do not place a heavy object (amplifier, receiver) on it. The object may fall, causing serious personal injury
- 21 -
or death. ● This unit should be situated away from heat source, such as amplifiers, radiators, stoves or any other units producing heat. ■ Condensation Lens could be moistening in these cases. ● Turn on heater shortly, ● In a very wet room, ● Move the player from a cold environment to a heat environment quickly.
Being moisture inside the play could operate normally. Please turn on power and wait about an hour for drying the moisture.
- 22-
7 Spare Parts 7.1 Key Parts List Location
Part NO GKB2.855.8105MX GKB2.855.8138MX
U17
MT1389QE_D
U11
ICMT1389DE-C
U11
AT49LV4096AT-70TC
U14
ICMX26LV800BTC-70
U7
IC42S16100-7T
U13
IS42S16400-7T
U38
ICBA5954FP
U12
ICBA5954FP
U12
IC24C02
U15
IC24C02
UM1/2
MP1580
U1/2
MP1580
U19
TPA6011
U20
TPA6011
Part Name
Main Board
MPEG IC FLASH Memory IC SDRAM IC MOTOR DRIVE IC EEPROM IC
Power Trans IC
AUDIO Trans IC
Description
Maker
Remark
MEPG Board
Hiteker
W/O DivX
MEPG Board(With DivX)
Hiteker
With DivX
MTK1389D
MTK
W/O DivX
MTK1389C
MTK
With DivX
4M Memory
ATMEL
W/O DivX
8M Memory
FUJITSU
With DivX
SDRAM IC
ISSI
W/O DivX
SDRAM IC
ISSI
With DivX
DRIVE IC
ROHM
W/O DivX
DRIVE IC
ROHM
With DivX
EEPROM IC
ATMEL
W/O DivX
EEPROM IC
ATMEL
With DivX
DC TO DC
MPS
W/O DivX
DC TO DC
MPS
With DivX
AUDIO Amplifier
TI
W/O DivX
AUDIO Amplifier
TI
With DivX
GKB4.021.8027MX
Key PCB
Function Key Part
Hiteker
For All
GKB2.930.8026MX
High Voltage PCB
High Voltage PCB
TOP-STAR
For All
GKB2.855.8042MX
Drive PCB
TFT LCD Driver
Hiteker
For All
U201
HX8806
TCON IC
TCON IC
HIMAX
For All
U1
IR3Y29B
VIDEO Decode IC
VIDEO Decode IC
SHARP
For All
DM-520A
Loader
DVD Player
Foryou
For All
HOP-1200W
Pick up
Pick up
HITACH
For All
CCM03-030R1-49
Spindle Motor
Spindle Motor
Moretech
For All
WFF-030PB-08315
Sled Motor
Sled Motor
WeiZhen
For All
PW070XU3
TFT Screen
TFT screen
PVI
For All
GKB4.819.8045MX
Rechargeable Battery
Ni-MH2400mAh
Rebenergy
For All
GKB2.930.8015
AC/DC Adapter
DC 12V 2.7A
SiDa
For All
GKB2.018.8072WX
Remote Control
Remote Control
FeiDa
For All
- 23 -
8 Trouble Shooting 8.1 Error Code Table CODE
Descriptions of Error
Note
Power Test
T01
No power no action
T02
Power Led indicator is not on or insufficient brightness
T03
Loading time too long
T04
Remote control bad sensing or not functional
T05
System stays in the Run In condition after power on, can’t be tested
T06
System down at power on
T07
System down during playing
T08
Power on unstable
T09
Abnormal sound in the system
Disc Drive Test
T11
Can’t read the disc (No Disc)
T12
Disc drive no action or locked
T13
Disc drive scratches the disc
T14
Some discs can’t be played (can’t play CD or VCD or DVD)
T15
Head does not work
T16
Spindle does not work
Video Test T21
No video / abnormal (Please indicate the abnormal condition)
T22
Video: no video / abnormal (Please indicate the abnormal condition)
T23
S-Video No video / abnormal or black & white (Please indicate the abnormal condition)
T24
VCD picture abnormal (Please indicate the abnormal condition)
T25
DVD picture abnormal (Please indicate the abnormal condition)
T26
Picture subtitle display abnormal or no display
T27
Setting menu picture abnormal (Please indicate the abnormal condition)
Audio Test T31
Audio / left sound channel (AOL) does not have waveform (sound) or waveform (sound) abnormal
T32
Audio / right sound channel (AOR) does not have waveform (sound) or waveform (sound) abnormal
- 24 -
T33
MP3 abnormal sound
T34
Audio no waveform (sound) or waveform (sound) abnormal
Earphone Test T41
Earphone no sound or the sound has pause, abnormal sound, noise, echo
T42
Earphone (right) no sound or the sound has pause, abnormal sound, noise
T43
Earphone (left) no sound or the sound has pause, abnormal sound, noise
Function Key Test
T51
Video can’t be still or stop
T52
Can’t execute fast forward or rewind
T53
Panel button
System Setting Test T61
Can’t enter the system setting
T62
The system can not be played or it is down after the system is set
TFT Test T71
TFT image and color error
T72
TFT image is black and white
T73
TFT image shakes and is distorted
T74
TFT PAL color strip
T75
TFT ripple
6.2 Debug & Trouble Shooting CB for any missing components and bad soldering
T01No Power Main Board A. Check for components on the Main Board to see if there are any short circuits. B. Check for the power adapter to see if the 12V power is abnormal. C. Check for components C6,C7,CE100,C3 on the Main Board to see if there are any short circuits. D. Check for component CN1 on the Main Board to see if the switch have function. E. If none of the above actions is effective, please change Main Board. T02Power LED indicator not on or insufficient brightness Main Board A. Open the cover of the portable DVD-player to inspect if LED functions normally. B. Measure the base electrode of Q1 to see if the voltage is high_and the emitter of Q1 must be high voltage.Q1 is a NPN 3904 type transistor. If it is abnormal ,
- 25-
Please replace with a good one. Disassemble F/W, replace with a good one or re-plug it to see if the LED lights up when Power ON. D. If the above actions are not working, replace the Main Board.
C.
T03Loading time too long Main Board A. Check the flat cable to see if it is adhibited to the right place. B. Remove the cover to see if the resistors or resistor-array adjacent to U38 and or U17, to see if there is any cold soldering, hollow soldering, misplaced soldering, or wrong part. C. If the above actions are not working, replace the Main Board. T04Remote control bad sensing or not functional Remote control A. If the main body of the system works normally, then making sure that the battery of the Remote control has sufficient power, if it is not, replace the battery. Main Board A. Remove the top cover and the panel. Check to see if IR1 has short circuit, broken circuit, hollow soldering, or other problems. Also check if the pins 1 of IR1 have power. B. If the above actions are not working, replace the Main Board. T05Stay in the Run In condition after power on, can’t be tested Main Board A. The same refer to T03. B. If the above actions are not working, replace the Main Board. T06System down at power on Main Board A. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them. B. Check the pin 1 of U3 to see if it is low voltage. If not , disassemble R5 or pull it to low voltage with a lead. C. If the above actions are not working, replace the Main Board. T07System down during play Main Board A. Exclude the condition of using battery. (The system will down when the voltage is too low.) B. Disassemble U17 F/W, replace with a good one or re-plug it to see if the symptom will disappear. - 26 -
C. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them. D. Check the capacitors C19 and the diode D6 to see if the reset circuit works normally. E. If the above actions are not working, replace the Main Board. DVD ROM A. Check the loader to see if it is not stable (any condition that some of the discs can’t be played). If so, replace the loader. DVD DISC A. Check the Test Disc to see if there is any serious scratch or ring shape, circular shape scratches, if so, replace the Test Disc and test again. T08Power on unstable Main Board A. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them. B. Check the LDO Q3 to see if it works normally with a 1.8V output voltage. C. Check the reset circuit refer to the title T07-D. D. If the above actions are not working, replace the Main Board. T09Abnormal sound in the machine base (Power on abnormal sound) DVD ROM A. Check the loader to see if it is the source of the abnormal sound. If so, replace the loader. B. If the abnormal sound comes from the audio speakers, check the audion PNP3906 type Q16 and NPN 3904 type Q8/9/10/12/13/15 to confirm the mute circuit works normally. If not ,change the audion. T11Disc drive can’t read (NO DISC) Main Board A. Remove the top cover, check the 28-pin flat cable in the system to see if they are correctly plugged to the fixed positions, or re-plug them. B. Check the resistors or resistor-array adjacent to U38 and U17 to see if there is any hollow soldering or cold soldering. If the above actions are not working, replace the Main Board. If it is still not working, replace the loader. DVD ROM A. Check the loader to see if it can’t read. If so, replace the loader. T12Disc drive no action or locked C.
Main Board A. Remove the cover. Check to see if it is caused by mis-assembly. B. Check the resistors or capacitors adjacent to U38 to see if there is any hollow soldering or cold soldering. C. If the above actions are not working, replace the loader. If it is still not working, - 27 -
replace the main board. T13Disc drive scratches disc Main Board A.
Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow
B.
soldering, cold soldering, wrong part, or misplaced soldering. If the above actions are not working, replace the loader. If it is still not working, replace the main board.
DVD ROM A. Check the loader to see if it is the cause of disc scratching. If so, replace the loader. T14Not every disc can be played Main Board A.
Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering, cold soldering, wrong part, or misplaced soldering.
B.
If the above actions are not working, replace the loader. If it is still not working, replace the main board.
T15Head does not work Main Board A. Remove the top cover, check the 28-pin flat cable and the 2-pin cable in the system to see if they are correctly plugged to the fixed positions, or re-plug them. B.
Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering, cold soldering, wrong part, or misplaced soldering.
C.
If the above actions are not working, replace the loader. If it is still not working, replace the main board.
T16Spindle does not work. Main Board A. Remove the top cover, check the 4-pin flat cable in the system to see if they are correctly plugged to the fixed positions, or re-plug them. B.
Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering, cold soldering, wrong part, or misplaced soldering.
C.
If the above actions are not working, replace the loader. If it is still not working, replace the main board.
T21No video / abnormal Main Board A. Remove the top cover, check all flat cables in the system to see if they are - 28 -
correctly plugged to the fixed positions, or re-plug them. B.
Use oscilloscope to measure if Y1 generates 27MHz. If it does not generate said frequency, and the problems such as cold or hollow soldering have been ruled out, it maybe Y1 work abnormally . Replace Y1 with a 27MHz fundamental frequency oscillater.
C.
Check if U17(F/W) IC has any problem.
D. Check if switch for TFT on/off is normal; replace a new one if necessary. E. If the above actions are not working, replace the Main Board. Driver Board A.
Check VR6,VR4,VR1,VR7,VR5 is using the correct component. Also check if it’s damaged.
B.
Adjust VR4,VR6,VR1,VR7,VR5 to the appropriate value.
DVD ROM (less likely to happen) A. If it is useless to change the main board, then replace the loader. T22Video no video / abnormal Main Board A. Remove the cover. Check the main board to see if there is any cold or hollow soldering and rule out the problem. B. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them. C. Check RLC following CVBS to see if there is any wrong parts, cold and hollow soldering, short circuit, broken circuit, broken parts and rule out the problem. D. If the above actions do not work, then check U17Pin175 and Pin182 to see if there is CVBS signals. E.
If the above actions are not working, replace the Main Board.
T23S-Video no video / abnormal or black & white Main Board A. Remove the cover. Check the main board to see if there is any cold or hollow soldering and rule out the problem. B. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them. C. Check RLC following Y and C to see if there is any wrong parts, cold and hollow soldering, short circuit, broken circuit, broken parts and rule out the problem. - 29 -
D.
If the above actions do not work, then check U17 Pin179 and Pin181 to see if there is Y and C signals.
E.
If the above actions are not working, replace the Main Board.
T24VCD abnormal picture Main Board A. B. C.
Check main board to see if there is any cold or hollow soldering and short circuit problem and rule out the problem. Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering, cold soldering, wrong part, or misplaced soldering. If the above actions are not working, replace the Main Board.
DVD ROM A. If the abnormal picture is the problem of pause or skipping tracks, then making sure if the disc has any scratches or dirt, if no such problems then replace the loader. T25DVD abnormal picture Main Board A. B. C.
Check U17 to see if there is any cold or hollow soldering and short circuit problem and rule out the problem. Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering, cold soldering, wrong part, or misplaced soldering. If the above actions are not working, replace the Main Board.
DVD ROM A. If the abnormal picture is the problem of pause or skipping tracks, then making sure if the disc has any scratches or dirt, if no such problems then replace the loader. T26Picture subtitle abnormal display or no display Main Board A. Remove the top cover and dis-assemble F/W (U17). Replace it with a good F/W or re-plug it, then check if the action is normal. Otherwise replace the F/W. B. Check U17 to see if there is any cold or hollow soldering and short circuit problem and rule out the problem. C. If the above actions are not working, replace the Main Board. T27Setting menu abnormal picture Main Board A. Check U17 to see if there is any cold or hollow soldering and rule out the problem. - 30-
B. Remove and dis-assemble U7 with a 16Mbit SDRAM. C. If the above actions are not working, replace the Main Board. T31Audio /left channel (AOL) no sound or abnormal sound Main Board A. Remove the cover. Check U15 on the Main board to see if there is any cold soldering, hollow soldering, or damage. Rule out the problem. B. Check all parts following AOL to see if there is any cold or hollow soldering, short circuit, broken circuit, parts missing, wrong parts and rule out the problem. C. If the above actions are not working, replace the Main Board. T32Audio /right channel (AOR) no sound or abnormal sound Main Board A. Remove the cover. Check U15 on the Main board to see if there is any cold soldering, hollow soldering, or damage. Rule out the problem. B. Check all parts following AOR to see if there is any cold or hollow soldering, short circuit, broken circuit, parts missing, wrong parts and rule out the problem. C. If the above actions are not working, replace the Main Board. T33MP3 abnormal sound Main Board A. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them. B. Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering or cold soldering. C.
If the above actions are not working, replace the main board. If it is still not working, replace the loader.
T34Audio no waveform (sound) or waveform (sound) abnormal Main Board A. Remove the cover. Check U15 on the main board to see if there is any cold or hollow soldering and rule out the problem. B. Check all parts following AOL and AOR to see if there is any cold or hollow soldering, short circuit, broken circuit, parts missing, or wrong parts. Rule out the problem. C. If the above actions are not working, replace the Main Board. T41Earphone Audio no waveform (sound) or waveform (sound) abnormal Main Board A. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them. - 31 -
B.
Check U19,U15 and J4,CON3 to see if there is any cold or hollow soldering
and rule out the problem. C. If the above action does not work after the inspection, replace the main board. T42Earphone Audio right no waveform (sound) or waveform (sound ) abnormal Main Board A. Check U19,U15 and J4,CON3 to see if there is any cold or hollow soldering and rule out the problem. Especially check for C24,C26,C28. B. If the above action does not work after the inspection, replace the main board. T43Earphone Audio left no waveform (sound) or waveform (sound) abnormal Main Board A. Check U19,U15 and J4,CON3 to see if there is any cold or hollow soldering and rule out the problem.Especially check for C27,C36,C67. B. If the above action does not work after the inspection, replace the main board. T51Video can’t be still or stopped Remote control A. If the main body of the system works normally, then making sure that the battery of the Remote control has sufficient power, if it is not, replace the battery. Main Board A. Check to see if U17 is damaged, and check all parts following U17 to see if there is any cold or hollow soldering, short circuit, broken circuit, broken parts, parts missing and rule out the problem. B. Check to see whether U17 is damaged. C. If the above actions are not working, replace the Main Board. T52Can’t execute fast forward or rewind Main Board A. Check to see if U17 is damaged, and check all parts following U17 to see if there is any cold or hollow soldering, short circuit, broken circuit, broken parts, parts missing and rule out the problem. B. Check to see whether U17 is damaged. C. If the above actions do not work after the inspection, it means the main board or F/W is bad. Replace the main board or re-burn the F/W (U11). T53Panel button Main Board A. Check U17 and 11-pin plug in jack CON2 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. B. If the above actions do not work after the inspection, check the 11pin cable to see if there is any damage. C. If the above actions are not working, Replace the control board or the main board. T61Can’t enter the system setting - 32 -
Main Board A. Check U17 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. B. If the above actions do not work after the inspection, it means the main board or F/W is bad. C. If the disk is abnormal, ask for a new version software . T62System can’t play or system down after setting Main Board A. Check U17 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. B. If the above actions do not work after the inspection, it means the main board or F/W is bad. Replace the main board or re-burn the F/W (U11). T71TFT image and color error Main Board A. Check the 11-pin cable connected to the driver board to see if there is any problem of plugging. Rule out the problem. B. Check devices after Y/C signal to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. Check U17 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. D. If the above actions are not working, replace the Main Board. Driver Board A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. D. If the above actions are not working, replace the Driver Board. T72TFT image is black and white Main Board A. Check the 11-pin cable connected to the driver board to see if there is any problem of plugging. Rule out the problem. B. Check devices after Y/C signal to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. Check U17 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. D. If the above actions are not working, replace the Main Board. Driver Board - 33 -
A.
Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. Check the devices surrounding U1 and U201 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. D. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. E. If the above actions are not working, replace the Driver Board. T73TFT image shakes or is distorted Main Board A. Check the 11-pin cable connected to the driver board to see if there is any problem of plugging. Rule out the problem. B. Check devices after Y/C signal to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. Check U17 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. D. If the above actions are not working, replace the Main Board. Driver Board A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. Check the devices surrounding U1 and U201 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. D. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. E. If the above actions are not working, replace the Driver Board. T74TFT PAL color strip Driver Board A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. Check the devices surrounding U1 and U201 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. D. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering
- 34 -
of IC or parts missing. E. Check Pin 1 to Pin 16 on U202 for any cold or hollow soldering and reverse soldering of IC or parts missing. F. If the above actions are not working, replace the Driver Board. T75TFT ripple Main Board A. Check the 13-pin cables connected to the driver board to see if there is any problem of plugging. Rule out the problem. B. Check the 3-pin cable connected to the high-voltage board to see if there is any problem of plugging. Rule out the problem. C. If the above actions are not working, replace the Main Board. Driver Board A. Measure the voltage U1 to see if it is correct. B. Check the devices surrounding VR202 to see if there is any cold or hollow soldering and reverse soldering of IC or parts missing. C. If the above actions are not working, replace the Driver Board. High-Voltage Board A. Check the 3-pin cable connected to the high-voltage board to see if there is any problem of plugging. Rule out the problem. B. Check the sharing cable connected to the panel to see if there is any problem of plugging. Rule out the problem. C. Check the high-voltage cable connected to the panel to see if there is any problem of plugging. Rule out the problem. D. If the above actions are not working, replace the inverter board. Panel A. Check the sharing cable connected to the high-voltage board to see if there is any problem of plugging. Rule out the problem. B. Check the high-voltage cable connected to the panel to see if there is any problem of plugging. Rule out the problem. C. If the above actions are not working, replace the panel.
- 35 -
