Hisense LCD3203EU User manual

1
LCD3203EU
SERVICE MANUAL
(V1.0)
January 2005

2
CONTENTS
1. SAFETY PRECAUTION……………………………………………………….………3
2. PRODUCT SAFETY NOTICE…………………………………………………………3
3. BLOCK DIAGRAM…………………………………..………………………………..4
4. FUNCTION OF CONJUNCTIONS………………………………………….………. .5
5. SIGNAL DIAGRAM…………………………………..………………………………..9
6. TROUBLESHOOTING………………………………………………………………..10
7. SERVICE MODE MENU………………..……………………………….……………..11
8. PART LIST……………..…………………………..…………………….……………..12

3
SAFETY PRECAUTION
WARNING:
Service should not be attempted by anyone unfamiliar with the necessary precaution on
thisreceiver. The following are the necessary precautions to be observed before servicing this
chassis.
1. When replacing a chassis in the cabinet, always be certain that all the protective devices are
put back in place, such as: non-metallic control knobs, insulating covers, shields,
isolation resistor-capacitor network etc.
2. When replacing parts or circuit boards, disconnect the power cord.
3. When replacing a high wattage resistor (oxide metal film resistor) on the circuit board, keep
the resistor 10mm (1/2in) away from circuit board.
4. Connection wires must be kept away from components with high voltage or high temperature.
5. If any fuse in this TV receiver is blown, replace it with the FUSE specified in the chassis parts
list.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the chassis have special safety-related characteristics.
These characteristics are often passed unnoticed by a visual inspection.
Replacement parts which have these special safety characteristics are identified in this manual
and its supplement electrical components having such features are shaded on the schematic
diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The use of
substitute replacement parts which do not have the same characteristic as specified in the parts
list may create shock, fire or other hazards.
CAUTION: BEFORE SERVICING THE CHASSIS, READ THE “SAFETY
PRECAUTION” “PRODUCT SAFETY NOTICE”ON PAGE 1 OF THIS
MANUAL.

4
BLOCK DIAGRAM
12 3
XS001
POWER
BOARD
MAIN
BOARD
XPK01
KEY
BOARD
TUNE
BOARD
(393A)
LCD
000
XP7 XP4 XP6
000
XP608 XP607 XP610
814 12
000
XP609
7
26
000 000 000 000
XPE005 XPE006
right
left
REMOTE
BOARD(467A)
000
000
XP606
XP08
4(earphone line)
(530)
( 526 )
(531)
SCART OUTPUT
BOARD(466A)
000000
000000
XP616 XP617 XP612
SP305 SP302 SP303
XP613
SP304
8
8
4
5125
000
XP8
000 000
000
8
5
XP611
XP04
XPE004
000 000000
000 000000
XP15
XP16 XP17
XPE001
XPE003 XPE002 Inverter
line
Inverter
line
54

5
FUNCTION OF CONJUNCTIONS
XPE003---XP16
ITEM NAME FUNCTION
1 +12V Panel power
2 +12V Panel power
3 5V Main board power(no use )
4 5V Main board power(no use )
5 POWER_ON Control POWER to standby
6 GND
7 GND
XPE001---XP15
ITEM NAME FUNCTION
1 +5V_M Main board power
2 +5V_M Main board power
3 GND
4 GND
XPE002---XP17
ITEM NAME FUNCTION
1 BRI Luminance regulation 0V~3.3V
2 PWM PWM Dimming
3 ON\OFF Backlight On~Off 0V~5V
4 GND
5 GND
XP7---XP608
ITEM NAME FUNCTION
1 T_SDA For SDA5550(N605) I2C SDA
2 T_SCL For SDA5550(N605) I2C SCL
3 SW0
Switch of TEXT and SCART2(R、G、B)
4 MUTE Be used to mute
5 SW1 SCART1 identify automatically

6
6 SW2 SCART2 identify automatically
7 GND
8 SW3 SDA5550 reset
XP4---XP607
ITEM NAME FUNCTION
1 GND
2 C_IN SCART2 C input
3 GND
4 Y_IN SCART2 Y input
5 GND
6 AV1 SCART1 AV input
7 GND
8 AV2 SCART2 AV input
9 GND
10 TV_IN TV from TUNER
11 GND
12 PR HDTV component input
13 PB HDTV component input
14 Y HDTV component input
XP6---XP610
ITEM NAME FUNCTION
1 VVS To SDA5550
2 VHS
3 GND
4 SDA For MSP3410( N600) I2C SDA
5 SCL For MSP3410( N600) I2C SCL
6 GND
7 R_IN
SCART2(R、G、B) input
8 G_IN
SCART2(R、G、B) input
9 B_IN
SCART2(R、G、B) input
10 FB_IN
11 GND
12 VOUT Video output

7
XP12
ITEM NAME FUNCTION
1 GND
2 GND
3 TXA0- LVDS signal
4 TXA0+ LVDS signal
5 GND
6 TXA1- LVDS signal
7 TXA1+ LVDS signal
8 GND
9 TXA2- LVDS signal
10 TXA2+ LVDS signal
11 GND
12 TXAC- LVDS signal
13 TXAC+ LVDS signal
14 GND
15 TXA3- LVDS signal
16 TXA3+ LVDS signal
17 GND
18 GND
19 +12V
20 +12V
21 +12V
22 +12V
23 MODE Mode selection
24 MODE Mode selection
25 GND
26 GND
XPK01---XP8
ITEM NAME FUNCTION
1 +3.3V
2 ADC1 Key code input
3 IR1 Remote code input
4 +5V
5 RED Power indicator light
6 GND

8
7 BLU Power indicator light
8 GND
XPE005、XPE006
ITEM NAME FUNCTION
1 Power
Supply+24V
2 Power
Supply+24V
3 Power
Supply+24V
4 Power
Supply+24V
5 Power
Supply+24V
6 GND
7 GND
8 GND
9 GND
10 GND
11 VBR
0V~3.3V Luminance regulation 0V~3.3V
12 On/Off
0V~5V Backlight On~Off 0V~5V
XPE004---XP611
ITEM NAME FUNCTION
1 +15V TDA7266 power
2 +15V TDA7266 power
3 GND
4 GND
5 +12V
6 GND
7 +5V
8 GND

9
SIGNAL DIAGRAM
A600
N600
MSP3410
N603
TDA7266B
2SIF
AUDIO
N604
TDA2822
MUTE
V603 V604
CVBS LCD
N6
VPC3230
N605
SDA5550
VIDEO(SCART)
S-VIDEO(SCART2)
LVDS
N601
PI5V330
VGA
DVI
YPbPr
RGB(SCART1)
TUNER
N8
GM1501
N5
PI5V330

10
TROUBLESHOOTING
yes yes
no no
red
blue
NO
YES
YES
no
N
O PICTURE
is there noise
p
icture?
Is indicato
r
light red o
r
blue?
VGA o
r
HDTV OK?
Main board is
b
ad
Tuner board is
b
ad
Antrnna/cable
ok? tuner board is
b
ad
Is there
signal ？
Check the Antrnna/cable connection
Check the main board
Check the signal connection

11
SERVICE MODE MENU
You can entry service mode menu by two methods:
1、[MUTE]+[5]: Press [MUTE] button, and then press number [5] button at
once.
2、[DISPLAY]+[MUTE]: Firstly, adjust the number of volume to 2. Press
[display] button, and then press [MUTE] before display on screen
disappear.
SERVICE MODE MENU include:
WHITE BAN: adjust white balance
HW SELECT: including submenu SELECT TUNER: select tuner, STD
TERBLE: no use, FREQ SP: be used to EMI
PICTURE MODE: adjust picture mode in standard
CHANNEL+: no use
CCD语言：no use
CLEAR ROM: clear user information
SET CHANNEL: set channel for full production
NOTE: If user set password on menu and forget the password, general
purpose password, 1016, can be used to enter setting password
menu. Please don not tell user the purpose password.

12
PART LIST
一、MAIN BOARD PART
ITEM NAME CATALOG NO. AMOUNT UNIT LOCATION
1 PCB RSAG7.820.530 1 PC
2 Rectangular
Chip
Resistor
RC0603JR-07-0R0 10 PC R11 R13 R28 R29
R30 R44 R47 R49
R78 R79
3 Rectangular
Chip
Resistor
RC0603JR-07-22R 4 PC R19 R20 R24 R34
4 Rectangular
Chip
Resistor
RC0603JR-07-56R 1 PC R25 R26 R27
5 Rectangular
Chip
Resistor
RC0603JR-07-75R 11 PC C26 C36 C44 C45
C51 R14 R15 R16
R21 R22 R23
6 Rectangular
Chip
Resistor
RC0603JR-07-100R 9 PC R10 R39 R45 R46 R6
R67 R68 R8 R9
7 Rectangular
Chip
Resistor
RC0603JR-07-150R 1 PC R76
8 Rectangular
Chip
Resistor
RC0603JR-07-240R 1 PC R60
9 Rectangular
Chip
Resistor
RC0603JR-07-470R 1 PC R18
10 Rectangular
Chip
Resistor
RC0603JR-07-1K 2 PC R36 R69
11 Rectangular
Chip
Resistor
RC0603JR-07-2K7 2 PC R72 R73

13
12 Rectangular
Chip
Resistor
RC0603JR-07-3K3 2 PC R62 R74
13 Rectangular
Chip
Resistor
RC0603JR-07-4K7 5 PC R70 R71 R88 R89
R94
14 Rectangular
Chip
Resistor
RC0603JR-07-10K 17 PC R1 R12 R2 R3 R4 R43
R5 R61 R65 R75 R77
R82 R83 R86 R90
R91 R92
15 Rectangular
Chip
Resistor
RC0603JR-07-47K 1 PC R93
16 Rectangular
Chip
Resistor
RC0603JR-07-100
K 3 PC R17 R7 R87
17 Multiple
Chip
Resistor
Network
YC164-JR-07-47R 16 PC RP10 RP11 RP12
RP13 RP14 RP15
RP16 RP17 RP18
RP19 RP24 RP3 RP4
RP7 RP8 RP9
18 Multiple
Chip
Resistor
Network
YC164-JR-07-10K 4 PC RP20 RP21 RP22
RP23
19 Chip
Ceramic
Capacitor
CC0603JRNP09BN
150 2 PC C18 C19
20 Chip
Ceramic
Capacitor
CC0603JRNP09BN
220 2 PC C137 C138
21 Chip
Ceramic
Capacitor
CC0603JRNP09BN
331 5 PC C27 C30 C31 C37 C52
22 Chip
Ceramic
Capacitor
CC0805JRNPO9B
N391 2 PC C21 C53
23 Chi
p
CC0603KRX7R9B 1 PC C33

14
Ceramic
Capacitor B102
24 Chip
Ceramic
Capacitor
CC0603KRX7R9B
B152 4 PC C14 C23 C40 C55
25 Chip
Ceramic
Capacitor
CC0603KRX7R9B
B103 8 PC C10 C11 C25 C5 C6 C7 C8 C9
26 Chip
Ceramic
Capacitor
CC0603KRX7R9B
B473 3 PC C16 C29 C47
27 Chip
Ceramic
Capacitor
CC0603KRX7R7B
B683 3 PC C48 C49 C50
28 Chip
Ceramic
Capacitor
CC0603KRX7R7B
B104 112 PC C107 C108 C109 C110 C111 C112
C113 C116 C117
C118 C119 C120
C121 C122 C123
C124 C125 C126
C127 C128 C129
C130 C132 C133
C134 C135 C136
C140 C141 C142
C143 C144 C174
C175 C176 C177
C178 C179 C180
C181 C192 C195
C196 C198 C2 C200
C201 C204 C83
C84 C85 C86 C87
C88 C89 C90 C91
C92 C93 C94 C95
C96 C99 C205 C208
C209 C212 C215 C3
C4 C41 C56 C1 C100
C101 C102 C103
C104 C105 C106

15
C182 C183 C184
C185 C186 C187
C189 C191 C162
C164 C165 C166
C168 C169 C170
C173 C153 C155
C156 C157 C158
C159 C160 C161
C145 C146 C147
C148 C15 C150 C151
C152
29 Chip
Ceramic
Capacitor
CC0603KRX7R6B
B224 5 PC C24 C57 C58 C59 C60
30 Chip
Ceramic
Capacitor
CC0603KRX7R6B
B684 4 PC C34 C35 C38 C39
31 Electrolytic
Capacitor RV2-16V4R7ME55 -R 1 PC C139
32 Electrolytic
Capacitor RV2-16V100ME55 -R 9 PC C12 C13 C17 C20 C22 C28 C32 C46
C54
33 Chip
Electrolytic
Capacitor
RV2-16V470ME55
-R 24 PC C114 C115 C131 C149 C154 C163
C167 C171 C172
C188 C190 C194
C197 C199 C202
C203 C207 C210
C211 C43 C81 C82
C97 C98
34 Chip
Electrolytic
Capacitor
RV2-16V101ME55
-R 1 PC C193 C206
35 Chip
Inductor STLI2012-2R2KT 8 PC L10 L13 L14 L15 L16 L17 L8 L9
36 Chip
Inductor SLG-1608-3R3KT 1 PC R38
37 Chi
p
STPB3216-121PT 24 PC L19 L21 L23 L24 L25

16
Inductor L26 L27 L28 L29
L30L31 L32 L33 L34
L35 L36
40 Surface
Mount
Diodes
BAV99T116 8 PC VD1 VD2 VD3 VD4
VD5 VD6 VD7 VD8
42 Surface
Mount NPN
Transistor
SST3904T116 5 PC V1 V3 V4 V5 V6
43 CHIP
Integrated
Circuit
IRF7314 1 PC N19
44 CHIP
Integrated
Circuit
LD1117-3.3A 2 PC N15 N17
45 CHIP
Integrated
Circuit
LD1117-2.5A 1 PC N16
46 CHIP
Integrated
Circuit
LD1117-1.8A 2 PC N14 N18
47 CHIP
Integrated
Circuit
AT24C32 1 PC N11
48 CHIP
Integrated
Circuit
K4D263238F-QC50 1 PC N12
49 CHIP
Integrated
Circuit
VPC3230-C5 1 PC N6
50 CHIP
Integrated
Circuit
AM29LV040B-90J
C 1 PC N13
53 CHIP
Integrated
Circuit
GM1501 1 PC N8
54 CHIP
Inte
g
rated ST232CD 1 PC N9

17
Circuit
55 CHIP
Integrated
Circuit
SN74LVC14APWR 1 PC N3
56 CHIP
Integrated
Circuit
DS1818R-10 1 PC N8
57 CHIP
Integrated
Circuit
PI5V330Q 1 PC N5
58 CHIP
Integrated
Circuit
BR24C21F 1 PC N2
60 CRYSTAL
OSCILLAT
ORY
JAS14C 1 PC Z3
61 CRYSTAL
OSCILLAT
ORY
JAS20K 1 PC Z1

18
二、TUNE BOARD PAART LIST
ITEM NAME CATALOG NO. AMOUNT UNIT LOCATION
1 PCB E/RSAG7.820.393A 1 PC
2 Rectangular
Chip
Resistor
RC0805JR-07-0R0 21 PC R630 R658
R683 R684
R704 R705
R706 R707
L614 L615
L616 L617
R602 R603
R608 R626
R717 R718
R724 R727
R728
3 Rectangular
Chip
Resistor
RC0805JR-07-47R 1 PC R632
4 Rectangular
Chip
Resistor
RC0805JR-07-75R 10 PC C619 C620
C621 R607
R642 R665
R666 R685
R708 R722
5 Rectangular
Chip
Resistor
RC0805JR-07-100R 8 PC R600 R601
R605 R620
R621 R637
R638 R649
R675 R680
R681 R725
6 Rectangular
Chip
Resistor
RC0805JR-07-680R 6 PC R657 R668
R669 R670
R671 R672
7 Rectangular
Chip
Resistor
RC0805JR-07-1K 13 PC R611 R614
R615 R616
R633 R641
R644 R660
R661 R674
R688 R689
R700

19
8 Rectangular
Chip
Resistor
RC0805JR-07-4K7 3 PC R643 R698
R699
9 Rectangular
Chip
Resistor
RC0805JR-07-6K8 6 PC R604 R625
R676 R677
R678 R679
10 Rectangular
Chip
Resistor
RC0805JR-07-10K 13 PC R609 R610
R612 R613
R617 R618
R619 R622
R635 R640
R646 R686
R687
11 Rectangular
Chip
Resistor
RC0805JR-07-22K 7 PC R627 R629
R631 R639
R645 R647
R648
12 Rectangular
Chip
Resistor
RC0805JR-07-47K 1 PC R628
13 Rectangular
Chip
Resistor
RC0805JR-07-56K 1 PC R654
14 Rectangular
Chip
Resistor
RC0805JR-07-100K 5 PC R634 R636
R653 R656
R667
15 Chip
Ceramic
Capacitor
CC0805KRX7R9BB3
R3 2 PC C632 C633
16 Chip
Ceramic
Capacitor
CC0805KRX7R9BB3
30 2 PC C656 C657
17 Chip
Ceramic
Capacitor
CC0805KRX7R9BB5
60 3 PC C609 C610 C611
18 Chip
Ceramic
Capacitor
CC0805KRX7R9BB1
02 8 PC C634 C647 C654 C664
C665 C690

20
C691 C704
19 Chip
Ceramic
Capacitor
CC0805KRX7R9BB4
72 2 PC C721 C722
20 Chip
Ceramic
Capacitor
CC0805KRX7R9BB1
03 1 PC C616
21 Chip
Ceramic
Capacitor
CC0805KRX7R9BB1
04 26 PC C638 C661 C667 C668
C669 C672
C679 C680
C603 C604
C606 C618
C623 C629
C631 C637
C681 C682
C683 C684
C685 C686
C689 C709
C723 C724
22 Chip
Ceramic
Capacitor
CC0805KRX7R9BB3
34 2 PC C340 C345
23 Electrolytic
Capacitor CD110-25V-1u0-M 7 PC C644 C645 C646 C648
C650 C663
C666
24 Electrolytic
Capacitor CD110-25V-3 u 3-M 1 PC C630
25 Electrolytic
Capacitor CD110-25V-10u-M 19 PC C600 C601 C602 C605
C612 C617
C622 C626
C627 C628
C635 C636
C639 C658
C673 C678
C707 C708