SCHEMATIC DIAGRAM
MODEL : 32WL55A / 32WL55E / 32WL55R / 32WL55T
WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "SERVICE SAFETY PRECAUTIONS" ON THE MANUAL
FOR THIS MODEL.
CAUTION : The international hazard symbols " " in the schematic diagram and the parts list designate components
which have special characteristics important for safety and should be replaced only with types identical to those in the
original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals. Before
replacing any of these components, read carefully the SERVICE SAFETY PRECAUTIONS on the MANUAL for this
model. Do not degrade the safety of the receiver through improper servicing.
NOTE:
1. RESISTOR Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5%
tolerance carbon resistor, unless otherwise noted as the following marks.
1/2R = Metal or Metal oxide of 1/2 watt 1/2S = Carbon compsistion of 1/2 watt
1RF = Fuse resistor of 1 watt 10W = Cement of 10 watt
K = ±10% G = ±2% F = ± 1%
2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in
?F, and the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.
Electolytic capacitor Mylar capacitor
3. The parts indicated with " * " have special characteristics, and should be replaced with identical parts only.
4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all
controls at normal, line voltage 220 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary ±20% except H.V.
-
1
-
SCHEMATIC DIAGRAM STRUCTURE:
CONNECTOR ..................................................................................................................................................... 1/50
AV_JACK ............................................................................................................................................................ 2/50
TIF ....................................................................................................................................................................... 3/50
AUDIO_OUT ....................................................................................................................................................... 4/50
REGULATOR ...................................................................................................................................................... 5/50
KEY ..................................................................................................................................................................... 6/50
LED_RMT ........................................................................................................................................................... 7/50
FRONT_AV ......................................................................................................................................................... 8/50
PC-IN_BOARD ................................................................................................................................................... 9/50
TEXT_SW ......................................................................................................................................................... 10/50
CONNECTOR(POWER_BOARD) .................................................................................................................... 11/50
MAIN_POWER(POWER_BOARD) ................................................................................................................... 12/50
SUB_POWER(POWER_BOARD) .................................................................................................................... 13/50
AC-INPUT ......................................................................................................................................................... 14/50
SIGNAL ANALOG IN [SHEET-200] ...... 15/50
D IN A [SHEET-300] ...... 16/50
D IN B [SHEET-301] ...... 17/50
HDMI (Link, I2C) [SHEET-302] ...... 18/50
HDMI Rx#2 (Video/Audio) [SHEET-303] ...... 19/50
HDMI Rx#3 (PWR,Audio) [SHEET-304] ...... 20/50
HDMI AUDIO PLL [SHEET-305] ...... 21/50
HDMI AUDIO DAC [SHEET-306] ...... 22/50
HDMI AUDIO OUT [SHEET-307] ...... 23/50
HDMI CONTROLLER [SHEET-308] ...... 24/50
EEPROM1 [SHEET-309] ...... 25/50
EEPROM2 [SHEET-310] ...... 26/50
MICRO I/O [SHEET-400] ...... 27/50
OCM MEMORY I/F [SHEET-401] ...... 28/50
FLASH MEMORY [SHEET-402] ...... 29/50
SYNC SEPA [SHEET-403] ...... 30/50
E2P OTHER [SHEET-404] ...... 31/50
STD-BY MICOR [SHEET-405] ...... 32/50
CORTEZ REG 1 [SHEET-406] ...... 33/50
CORTEZ REG 2 [SHEET-407] ...... 34/50
CORTEZ REG 3 [SHEET-408] ...... 35/50
BOOT CONFIG [SHEET-409] ...... 36/50
SERVICE CONNECTOR [SHEET-410] ...... 37/50
I2C Switch [SHEET-411] ...... 38/50
AUDIO (1/2) [SHEET-600] ...... 39/50
(2/2) [SHEET-601] ...... 40/50
CORTEZ 1 [SHEET-700] ...... 41/50
CORTEZ 2 [SHEET-701] ...... 42/50
DDR I/F [SHEET-702] ...... 43/50
DDR SDRAM [SHEET-703] ...... 44/50
DDR TERMINATION [SHEET-704] ...... 45/50
DCDC CONV. [SHEET-802] ...... 46/50
LVDS OUT [SHEET-900] ...... 47/50
LVDS OUT(SHARP LCD) [SHEET-901] ...... 48/50
Power Connector and Dimming [SHEET-902] ...... 49/50
LVDS Power and Others [SHEET-903] ...... 50/50
-
2
-
TO SIGNAL BOARD
TO FRONT AV
R_E3
GND
L_E3
TUNER GND(2mm)
TUNER GND(2mm)
11
R_E1
4-D2
L_E1
4-C2
GND
GND
V_E3
V_E2
4-C2
GND
SW_E3
SW_E2S
GND_V_E2
PJ21A
PLUG_2mm_3P\B3B-PH-K-S
9V
321
9V
5-A2
PV25A
B11B-PH-K-S
GND
SC_E3
SY_E3
14237610 895
GND
SY_E2
SC_E2
5V2
GND
5V2
1-D5,2-F4,3-B1
AN(RET)
SV1
DE96
MTZJ6.2B
A1
DSUB_B
DSUB_B
C1
GND
GND
4950 4748 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 2423222120 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
GND
GND
Cb_E1
GND_Cb_E1
GND
GV14
OPEN
SC_E2
GND
SC_E2
B1
Cb_E3
2-C3
GND
GND
GR25
SHORT
GND_Cb_E3
2-C3
SV2
B2
A2
GND
GND
V_E1
GND_V_E1
2-A3
2-A3
GV15
SY_EF_E2
C2
GND
DSUB_G
DSUB_G
OPEN
GND
GND
SY_EF_E2
GND
GND
GND
BN(RET)
SV3
GR26
SHORT
B3
A3
GND
GND
GR30
SHORT
GND
Cr_E1
Cr_E3
GND_Cr_E3
2-C3
1-C5,7-B2
C3
GND
GND
GND
V_TV1
GND_Cr_E1
3-B2
3-B2
DSUB_B
GR27
GND
CN(RET)
SHORT
DSUB_G
SV4
GND
GND_V_E2
V_EF_E2
2-B3
2-B3
GND
DSUB_R
A4
Y_E1
GND
B4
GND
DSUB_R
DSUB_R
GND_Y_E1
SNV(RET)
OPT2
OPT1
C4
GND
GND
GND
GR28
SHORT
Y_E3
GND
GND_Y_E3
2-C3
2-C3
OPT6
OPT5
OPT4
OPT3
VOUT
GND_VOUT
2-F4
1-C5,2-C6
VS
TO PC-IN BOARD
TO AV-HDD
VS
Dsub_R
GND
RM73B1HR00OD
GR31
P900
B9B-PH-K-S
GND_Dsub_R
Dsub_G
GND_Dsub_G
3978465 12
Dsub_B
GND_Dsub_B
PJ87A
PLUG_2mm_2P\B2B-PH-K-S
GND
GND
DSUB_B
DSUB_R
GND
DSUB_G
DV44
DV45
OPEN
OPEN
P902
B5B-PH-K-S
5V2
5V2
VOUT
VOUT
GND
GND
HS
SCL1
SDA1
1354 2
SCL1
SDA1
OPT7
PJ22A
9637S-50ATL FFC/FPC SOCKET
OPT11
OPT10
OPT9
OPT8
AFT1
SW_E1CS
SW_E2S
AFT1
SW_E1CS
18V1
GND_HDD
12
18V1
GND_HDD
1-D8
1-D6,5-A1,5-A2
OPT12
SW_E2S
AFT2
SCL1
SDA1
SDA1
3-B1
TXT_SW1
SCL1
TXT_SW1
3-B1
11-B2
P819 P818
KETSU
STOP_FAN
R895
KETSU
R896
KETSU
D896
KETSU
5V2
1-B2,2-F4,3-B1
TXT_SW2
TXT_SW2
11-B2
GND
12V
12V_FAN
1-D6,5-A2
KETSU
PJ60A
9637S-50ATL FFC/FPC SOCKET
SW_DVI2
SW_DVI1
VS
HS
NC
STOP_FAN
STOP_FAN
1-D5
PDP_CONT_EN
PDP_MUTE
BS_MUTE
EXT_MUTE
MUTE
MUTE
EXT_MUTE
4-B1
4-B1
R_HDMI
KETSU
18V1
12V
STOP_FAN
GND
R897
KETSU
R894
D897
12V_FAN
KETSU
LNB
53231 122314
18V2(USonly)
18V1
F_GND
32V
32V
1-D5,5-A2
L_HDMI
GND
GND
L_BS
R_BS
GND
GND
L_TV
R_TV
W_APRO
GND
L_APRO
GND
L_APRO
4-A1
GND
L_MONITOR
R_MONITOR
GND
R_E4
L_E4
GND
R_E3
L_E3
GND
1112 1039454950 47 4648 41 4044 4243 24 22 212329 283132 30 2527 26 1415 131920 1618 1736 3538 37 3334 781642359
GND
GND
GND
L_E4
R_E3
2-D3
L_E3
2-D3
R_E4
L_MONITOR
R_MONITOR
2-E4
2-E4
TO POWER BOARD
R_APRO
GND
R_APRO
4-A1
TO LED_HP BOARDTO FAN-1TO FAN-2 TO DIGITAL BOARD
R_E2
R_E2
2-B3
L_E2
L_E2
2-B3
GND
GND
R_E1
R_E1
2-A3
L_E1
L_E1
2-A3
GND
GND
GND
SIF
SYS_SW2
SYS_SW1
SIF
GND
SYS_SW1
SYS_SW2
3-A2
P803BP602APJ63A
PLUG_2mm_12P\B12B-PH-K-SPLUG_2mm_4P\B4B-PH-K-SPLUG_2mm_5P\B5B-PH-K-S
L_AUDIO
R_AUDIO
GND
GND
1
2
4
GND_AUDIO
R_OUT
GND_AUDIO
L_OUT
L_OUT
R_OUT
GND_AUDIO
GND_AUDIO
4-B2
4-A2
AC_DETECT11POWER_SW
12
POWER_SW
5-A1
GND_HDD
GND
103
9
GND_HDD
1-D4
18V
18V
18V
5-A1
5V1
40V34AUDIO_GND
AUDIO_GND
5786
GND_AUDIO
5V1
40V
GND_AUDIO
4-B1
5-A1
AUDIO_Vcc
2
AUDIO_Vcc
1
VCC_AUDIO
VCC_AUDIO
5-A1
3-B1,5-A1
STOP_FAN
1-D4,5-A1,5-A2
1-D7,1-D7,4-A2,4-A2,4-B2
1-B8
1-D7,1-D8,4-A2,4-A2,4-B2
1-D7,1-D8,4-A2,4-A2,4-B2
R4108
R4101
R4103
680
680
R4102
470
Q4100
R4104
Q4101
2SC3437Y-L
2SC3437Y-L
R4100
PC_HS
R4109
1k1k
1k
680
Q4103
2SC3437Y-L
R4106
680
R4107
470
Q4102
2SC3437Y-L
1k
R4105
VS
32WL55A/E/R/T
CONNECTOR
(1/50)
1-B2,2-A1,3-C2,8-E1
1-B2,2-A1,3-C2,8-E1
1-B6,2-A1,9-A1
1-A6
SW1 SW2
B/G H L
ILH
D/K L L
MHH
SCL1
SDA1
GND
GND
5V2
32V
GR612
KETSU
TUNER-GND
P516A
KETSU
SCL1
SDA1
32V
GR112
KETSU
tuner_GND
C101
B25V0.01
D101
KETSU
L101
+
C105
16V220
L110
KETSU
H001
GR613
KETSU
KETSU
GR113
tuner_GND
TIF Type : Horizontal
1.5V (RECEIVING THE SIGNAL)
2.9V (NO SIGTNAL)
VIDEO out
(US- NC)
IF out
32V
SIF out
Audio det out
AFT
SDA
SCL
NC(US- IF out)
RF AGC
VT
NC(Asia- SW2)
NCNC5V
NC(Asia- SW1)
4.86
C114
KETSU
L191
TEM2121M
R103
100
KETSU
C115
C190
0.1uF
Q101
2SC4081-Q
R104
10k
R105
27K
R167
KETSU
C116
100
C110
B1000p
RM73B1HR00OD
+
C102
16V220
100
R102
L103
TEM2121M
R108
B1000p
C111
R101
100
KETSU
C112
C107
OPEN
KETSU
C113
+
L102
TEM2121M
R107
RM73B1HR00OD
SDA1SCL1
GR01
RM73B1HR00OD
+
C104
50V4.7
171511 131235642 81097 14 16
32.6
TP-12
R114
RM73B1HR00OD
C103
B1000p
R169
RM73B1HR00OD
R165
KETSU
C161
KETSU
KETSU
R166
PK05
KETSU
R163
KETSU
R161
KETSU
V_TN_OUT
GND
C164
0.01
R168
KETSU
Q161
KETSU
C163
KETSU
R162
KETSU
11-A1
100p
C162
Q162
KETSU
R164
KETSU
SIF OUT
_SW2
R170
GR05
RM73B1HR00OD
GR07
KETSU
GR08
KETSU
GR06
RM73B1HR00OD
C117
B25V0.01
C118
B25V0.01
GND
SYS_SW2
SYS_SW1
SYS_SW2
SYS_SW1
SIF
GND
3-A2
GND
L105
KETSU
RM73B1HR00OD
GR03
32V
TT_FL_OUT
GR02
RM73B1HR00OD
(23103272Q)
11-A2
LV42
OPEN
CV42
OPEN
RV60
1k
GV02
OPEN
RV44
OPEN
QV06
2SA1576A
CC04
OPEN
RV43
100
GND
+
CV39
16V100
GV01
RM73B1HR00OD
CB41
OPEN
AFT1
GND
9V
V_TV1
GND
AFT1
1-B5,10-B1
2-B1
1-C2
ENG39A07GF
32WL55A/E/R/T
TIF
(3/50)
E3
S
V
L
R
HP
OPEN
PV61
R
M
L
PV60
JACK 3P
P661
EARPHONE J D3.5
CV122
100p
DV121
KETSU
DV122
KETSU
SY_E3
SC_E3
DV120
C605
B1000p
S-SW_E3
GND
OPEN
LC32
TEM2142AD
LC33
TEM2142AD
L_AMP
R_AMP
LC31
TEM2142AD
CC11
R696
1/8W1K
R695
1/8W1K
R697
1/8W1K
R688
1/8W1K
R689
1/8W1K
R687
1/8W1K
D653
KETSU
RV129
OPEN
1/10W75
RV123
CV121
OPEN
RV121
OPEN
C606
B1000p
Y
C
RV122
SW
OPEN
GR605
SHORT
GR604
KETSU
RC12
820
CC12
B1000p
RC11
820
B1000p
CY650
OPEN
D652
KETSU
R_SPK
L_SPK
11P
PV25B
B11B-PH-K-S
V_E3
L_E1
R_E1
10
11
4P
P601
4P_2.5mm_1.5A_Beige
4P
B4B-PH-K-S
GND
1
2
SY_E3
3
SC_E3
4
S-SW_E3
5
GND
6
V_E3
7
GND
8
L_E1
R_E1
9
TUNER GND(2mm)
TUNER GND(2mm)
R_GND
4
R_SPK
3
L_SPK
2
L_GND
1
P602
R_GND
4
R_AMP
3
L_AMP
2
L_GND
1
(2.5mm)
(2.5mm)
(2.5mm)
(2.5mm)
(2mm)
(2mm)
(2mm)
(2mm)
AV
R/L_SPK
SIGNAL
32WL55A/E/R/T
FRONT_AV
(8/50)
OPEN
C516
CH11
X501
16.2MHz
L505
TRF4100AT
GC20
CHIP JP
+
C514
16V220u
C524
B0.01
CC31
B1000
38 37 3334 32 3136 35 26 252830 29 27
fil
39
C517
GJ10
OPEN
R509 C519
15k 4.7u
R506
7L_0.47u
C526
B0.01
R515
47k
R516
47k
C527
2.2u
++
C521
B0.022
X'tal
27k
40
C3-in
APC-fil
41
CVBS3/Y3-in
ADDRESS
42
C2-in
43
CVBS2/Y2-in
44
45
46
R507
3.9k
47
48
CVBS1/Y_in
Comb SYS
Fsc-out
AFC-fil
C1-in
Sync-in
YS2/YM
CVBS-out
R2-in
VS
G2-in
Comb Y-in
B2-in
Q501
Digital-VDD
Y/C-VCC
Comb C-in
/Forced-S
Y2-in
Digital-GND
Cb2-in
HS
Cr2-in
SCP
Y/C-GND
Sync-GND
Yvi-out
R1-in
Sync-VCC
G1-in
Cr1-in
121110987654321
C501
B0.1
R514
GJ13
R512
SHORT
GJ16
SHORT
100
CC20
OPEN
R511
OPEN
L510
1k
Q504
2SA1576A
C507
OPEN
C502
B0.1
R501
6.8k
++
C503
16V47u
C504
A
TRF4100AJ
L504
B25V0.01
2.7k
R502
6.8k
R508
16V47u
C505
B1-in
C506
24
YS1
cr-out
23
cb-out
22
Y-out
21
+
20
CLP-fil
Y1-in
19
Cb1-in
18
17
16
YS3
15
SDA
SCL
14
13
100
100
R504
R505
B0.01
PC-DSUB
RR03
1/8W75
RR01
1/8W75
RR02
1/8W75
PV90
DR03
OPEN
KRD-8622
GR34
GR35
SHORT
SHORT
GND
217
GND
DR04
DR05
OPEN
OPEN
P900A
B9B-PH-K-S
BGND
GND3G
4
68H9
GND VGND5R
5
3124
5V2
VOUT
GND
P902A
B5B-PH-K-S
SCL1
SDA1
AV-Y
B
R
G
GND
GNDGND
VH
RR04
33
GND
DR01
OPEN
RR05
33
DR02
OPEN
RR06
33
GND
32WL55A/E/R/T
PC-IN_BOARD
(9/50)
1-A2
1-A2
1-A2
RECTIFIED(+)_MAIN
RECTIFIED(-)_MAIN
STARTUP_MAIN
RECTIFIED(+)_MAIN
RECTIFIED(-)_MAIN
STARTUP_MAIN
35*35mmMAX
F802
250V F3.15AL
F802Z
+
C810
450V220u
LIVE AREA
Q801
STR-Z4369
1/2R10
1312
R809
1/2W 6R8J
2KV470pF
C826
2KV470pF
OUT
14
D811
AG01A
L804
SHORT
C821
C821Z
C822
C822Z
C823
COM
RC
0C
DRIVCC
VCC
DT
CD
CSS
CONT
10000
C804
GND
MTZJ9.1A
4
3
MTZJ27C
D806
2
D805
6
5
R807
1/6P39k
M MM
200V2.2
+
R803
1/6P5.6k
C827
C825
63V1.0
R817
1P220k
D809
MTZJ36C
R805
8
7
M
63V0.47
C815
1/6P1k
D810
9
MTZJ27C
50V0.22
C817
10
R813
1/6P27
50V1000p
C824
11
R814
1/2R39
100
C819
1/2R680
R806
1/2R47
R815
R808
1/2R100
R812
VIN
1
SHORT
L803
50V100
C816
15
M
VB
C820
50V00.22
D812
MTZJ9.1C
2kV680PF
2kV820PF
C803
+
630V0.15u
D813
AL01Z
Q801C
Q801B
Q801A
C803Z
L805
TEM2011AA
C813
63V0.33
L875
TEM2011AA
T862
TPW3572AS
5
3
2
R821
1W6.8
C899
OPEN
Q826
TLP421F(GR)/PS2581L1(D)
41
M
R816
330
23
P890
97
10
11
L876
TEM2011AA
13
14
15
16
L878
TEM2011AA
R873
1/6P1.5k
R872
OPEN
TEM2011AA
20P5000
D883
RB215T-90
D884
RB215T-90
Z889
L874
P
SE024N
D883C
D883A
D883B
D884C
D884A
D884B
Q883
G
R874
SHORT
C890
63V0.33
M
R890
1k
D885
FMX-12S(023
+
50V1000
35V2200u
+
+
35V2200u
C883
C884
L890
OPEN
BC
18V
C889
GJ82
620mA
OPEN
LE73
TLN3481AA/GH
35V56uF
CE55
TLN3499GH
OPEN
RE61
18k_F
L888
L889
OPEN
GJ889
SHORT
L883
TLN3551AH
L883Z
OPEN
COLTLN3639AH
L884
OPEN
COLTLN3639AH
+
L884Z
5
4321
RE58
22k_F
1.5k_F
1.5k_F
ON/OFF
GND
GND
Vin
Vin
RE56
RE57
GJ84
GJ841
QE71
CE-1050
SHORT
SHORT
GND
GND
Vset
Vout
Vout
CE53
B25V220n_K
68 7
10 9
RE59
330k
QE64
BD4746G
5
VCCNC
1100mA
6000mA
DE56
MA8300-H
orMA111
DE54
1SS355
5W82 5W82
R862 R861
2500mA
RE55
RE53
39k 1.5k
RE51 RE52
QE75
2SC2412K
CE54
OPEN
4
Vout
B25V220n_K
RE60
SUB
GND
321
47k
CE52
QE74
RE83
RN1403
47k
RE82
47k
RE54
1/8W2.2k
1/8W2.2k
OPEN
GJ99
SHORT
DE55
MA8062-M
SHARP/CMO; MA8062-M
DE52
1SS355
AUDIO_VCC
AUDIO_GND
BL_Vcc
PROTECT
BL_GND
To OBON GND
VCC_LCD
PROTECT
POWER_LCD
AC_DETECT
1-B2
1-B2
1-A1
1-B1,2-D8,4-E4
1-A1
1-A1
orMA111
1-B1,2-C8,4-E4
1-A1
1-A1,1-B2
32WL55A/E/R/T
MAIN_POWER(POWER_BOARD)
(12/50)