JVC LT-42GZ78, LT-47CZ78 Schematic
SCHEMATIC DIAGRAMS
WIDE LCD PANEL TELEVISION
LT-42GZ78, LT-42GZ78/B, LT-42GZ78/BA,
LT-42GZ78
LT-47GZ78
/S, LT-47GZ78, LT-47GZ78/B,
/BA, LT-47GZ78/S
CD-ROM No.SML200712
BASIC CHASSIS
FL5
COPYRIGHT © 2007 Victor Company of Japan, Limited.
No.YA582<Rev.001>
2007/12
LT-42GZ78, LT-42GZ78/B,LT-42GZ78
/B
LT-47GZ78, LT-47GZ78
,LT-47GZ78
/BA
/BA
STANDARD CIRCUIT DIAGRAM
NOTE ON USING CIRCUIT DIAGRAMS
1.SAFETY
The components identified by the symbol and shading are
critical for safety. For continued safety replace safety ciritical
components only with manufactures recommended parts.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1)Input signal : Colour bar signal
(2)Setting positions of
each knob/button and
variable resistor
(3)Internal resistance of tester
(4)Oscilloscope sweeping time
(5)Voltage values
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
: Original setting position
when shipped
: DC 20kΩ/V
: H
: V
: Othters
: All DC voltage values
20µs / div
5ms / div
Sweeping time is
specified
3.INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board
: R1209
R209
Type
No indication
MM
PP
MPP
MF
TF
BP
TAN
(3)Coils
No unit
Others
(4)Power Supply
Respective voltage values are indicated
(5)Test point
: Test point
(6)Connecting method
, LT-42GZ78/S,
, LT-47GZ78
: Ceramic capacitor
: Metalized mylar capacitor
: Polypropylene capacitor
: Metalized polypropylene capacitor
: Metalized film capacitor
: Thin film capacitor
: Bipolar electrolytic capacitor
: Tantalum capacitor
: [µH]
: As specified
: B1
: 9V
: Only test point display
: Connector
: Receptacle
: Wrapping or soldering
/S
: B2 (12V
: 5V
)
4.INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit : [Ω]
K
M
Rated allowable power
No indication : 1/16 [W]
Others : As specified
Type
No indication
OMR
MFR
MPR
UNFR
FR
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
Capacitance value
1 or higher : [pF]
less than 1
Withstand voltage
No indication : DC50[V]
Others : DC withstand voltage [V]
AC indicated
Electrolytic Capacitors
47/50[Example]: Capacitance value [µF]/withstand voltage[V]
: [kΩ]
: [MΩ]
: Carbon resistor
: Oxide metal film resistor
: Metal film resistor
: Metal plate resistor
: Uninflammable resistor
: Fusible resistor
: [µF]
: AC withstand voltage [V]
(7)Ground symbol
: LIVE side ground
: ISOLATED(NEUTRAL) side ground
: EARTH ground
: DIGITAL ground
5.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be
taken for the following points.
(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. if the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from
the receptacle when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected, a fuse or any parts will be broken.
Since the circuit diagram is a standard one, the circuit and
circuit constants may be subject to change for improvement
without any notice.
NOTE
Due improvement in performance, some part numbers show
in the circuit diagram may not agree with those indicated in
the part list.
When ordering parts, please use the numbers that appear
in the Parts List.
(No.YA582<Rev.001>)2-1
)
CONTENTS
SEMICONDUCTOR SHAPES ......................................................................2-4
WIRING DIAGRAM ........................................................................................2-5
BLOCK DIAGRAM ........................................................................................2-7
CIRCUIT DIAGRAMS....................................................................................2-9
ANALOG PWB CIRCUIT DIAGRAM ........................................................................................................... 2-9
DIGITAL PWB CIRCUIT DIAGRAM .......................................................................................................... 2-21
MAIN POWER [LT-42GZ, LT-42GZ78/B, LT-42GZ78/BA, LT-42GZ78/S] PWB CIRCUIT DIAGRAM .......... 2-45
MAIN POWER [LT-47GZ, LT-47GZ78/B, LT-47GZ78/BA, LT-47GZ78/S] PWB CIRCUIT DIAGRAM .......... 2-51
DC-DC PWB CIRCUIT DIAGRAM ............................................................................................................. 2-57
LED PWB CIRCUIT DIAGRAM ................................................................................................................. 2-59
SW PWB CIRCUIT DIAGRAM ................................................................................................................. 2-61
PATTERN DIAGRAMS .............................................................................. 2-63
ANALOG PWB PATTERN ........................................................................................................................ 2-63
DIGITAL PWB PATTERN ......................................................................................................................... 2-65
MAIN POWER PWB PATTERN ................................................................................................................ 2-69
DC-DC PWB PATTERN ............................................................................................................................ 2-71
LED PWB PATTERN ................................................................................................................................ 2-71
SW PWB PATTERN ................................................................................................................................. 2-72
VOLTAGE CHARTS .................................................................................. 2-73
WAVEFORMS ............................................................................................ 2-75
2-2(No.YA582<Rev.001>)
USING P.W. BOARD
P.W.B ASS’Y name
ANALOG P.W. BOARD
SW P.W. BOARD
LED P.W. BOARD
MAIN POWER P.W. BOARD
DC-DC P.W. BOARD
DIGITAL P.W. BOARD
P.W.B ASS’Y name
ANALOG P.W. BOARD
SW P.W. BOARD
LED P.W. BOARD
MAIN POWER P.W. BOARD
DC-DC P.W. BOARD
DIGITAL P.W. BOARD
LT-42GZ78
SFL-1236A-H2
SFL-7221A-H2
SFL-8728A-H2
SFL-9091A-H2
SFL-91A0A-H2
SFL0D383A-H2
LT-47GZ78
SFL-1237A-H2
SFL-7221A-H2
SFL-8728A-H2
SFL-9092A-H2
SFL-91A1A-H2
SFL0D385A-H2
LT-42GZ78/B
LT-47GZ78/B
LT-42GZ78/S LT-42GZ78/BA
SFL-1236A-BK
SFL-7221A-BK
SFL-8728A-BK
SFL-9091A-BK
SFL-91A0A-BK
SFL0D384A-H2
SFL0D383A-BK
LT-47GZ78/S LT-47GZ78/BA
SFL-1237A-BK
SFL-7221A-BK
SFL-8728A-BK
SFL-9092A-BK
SFL-91A1A-BK
SFL0D386A-H2
SFL0D385A-BK
(No.YA582<Rev.001>)2-3
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW FRONT VIEW TOP VIEW
CHIP TR
E
C
B
ECB
IC
BOTTOM VIEW FRONT VIEW TOP VIEW
B
(G)E(S)C(D)
ECB
ECB
C
BE
CHIP IC
N
OUT
E
IN
N
IN OUTE
1
1 N
1 N
N
TOP VIEW
N
1
N
1
N
2-4(No.YA582<Rev.001>)
WIRING DIAGRAM
TOP
CN0SR
14
ANALOG PWB
CN0SL
13
CN10F
CN001
CN002
CN00U
CN00R
CN00H
12
SPEAKER (R) SPEAKER (L)
123
501401
101
91
TOP
CN00H
123
150140
DC-DC PWB
CN001
CN002
CN0DC
115
CN0DC
DIGITAL PWB
CN00A
15 1
115
CN001W
CN0LV2
CN0LV1
TOP
14
151
41 1
CONTROL PWB
CN00A
15 1
CN00F
CN00W
41 21
LCD PANEL UNIT
INVERTER PWB
(MASTER SIDE)
POWER PWB
INVERTER PWB
(SLAVE SIDE)
CN00P
114
CN00Q
110
TOP
SW PWB
CN100R
ANALOG
TUNER
POWER CORD
91
TOP
LED PWB
110
CN100U
F9001
250V/6.3A
CN0PW
21
TOP
2-6(No.YA582<Rev.001>)(No.YA582<Rev.001>)2-5
BLOCK DIAGRAM
VIDEO-1
VIDEO-2
VIDEO-3
MONITOR
OUT
S-VIDEO
VIDEO
AUDIO L/R
Pr/Pb
S-VIDEO
VIDEO
AUDIO L/R
VIDEO
AUDIO L/R
Pr/Pb
PC IN
(D-SUB)
HDMI-1
AUDIO INPUT
L/R
S-VIDEO
VIDEO
AUDIO L/R
ANALOG PWB
TU3001
UHF/VHV
TUNER
TV_MAIN
Y
Y
DIN_L/R
DVI_L/R
AUDIO SELECT
IC106
IC105
AMP
IC103
AMP
IC104
AMP
SIF_OUT
MONO
V1_VIN
V2_VIN
V3_VIN
V1_YIN
V2_YIN
V1_CIN
V2_CIN
TV_L/R
DIN_SL/SR
MON_YOUT
MON_COUT
MON_VOUT
MON_L/R
DEC_Y
V1_L/R
V2_L/R
V3_L/R
IC3501
TV_L/R
VIDEO/AUDIO SELECT
MULTI SOUND PROCESS
AGC
DSP
D-A VOLUME
A-D
A-D
IC101
MAIN_VY
SUB_VY
Y/C
MIX
MAIN_C
SUB_C
MAIN_L/R
Y/C
MIX
DEMOD.
MATRIX
MAIN_L/R
VIDEO SELECT
MAIN_VY
V1_G_Y
V3_G_Y
PC_G
TEXT_G
SUB_C
V1_B_Cb
V3_B_Cb
PC_B
TEXT_B
MAIN_C
V1_R_Cr
V3_R_Cr
PC_R
TEXT_R
AUDIO CONTROL
IC601
A-D
CONVERT
IC102
BOOST
BASS
DIGITAL IN
DIGITAL IN
DIGITAL IN
Y_OUT
BY_OUT
RY_OUT
STEREO
HDMI
HDMI-1
HDMI
HDMI-2
HDMI
HDMI-3
SUB_VY
YM_IN
BYM_IN
RYM_IN
BOOST
DIN_DL/DR
IC6001
SETTING DATA
TREBLE
BOOST
DV1_R0-7
DV1_G0-7
HDMI
RECEIVE
CONVERT
CONVERT
IC7303
TEXT DATA
MEMORY
IC7602
DV1_B0-7
A-D
A-D
SUB CPU/A-D CONVERT/YC SEPARATE/
CHROMA DEMOD./FORMAT CONVERT/
ENHANCE/NR/RGB PROCESS/OSD MIX
YC SEPARATE/
CHROMA DEMOD./
FORMAT
CONVERT/
ENHANCE/
NOISE REDUCT
IC7301
MAIN CPU
MEMORY
MAIN_CCD
TEXT_R/G/B
EQUALIZE
VOLUME
CONVERT
D-A
RGB
PROCESS
MI_TX
MI_RX
MI_CLK
OSDR1-5
OSDG1-5
OSDB1-5
SUB CPU
DBU00-09
DGY00-09
DRV00-09
OSD
MIX
IC751
HEADPHONE AMP
AMP_L/R
IC6001
AUDIO OUT
SD_DQ1-32
A0-21
D0-15
A0-21
D0-15
IC6101
FRAME MEMORY
IC7201
PROGRAM MEMORY
IC7203
PROGRAM MEMORY
IC5001
FRAME INTERPOLATE/
LCD CONTROL/
BACK-LIGHT CONTROL
ADRS
DQ
IC5002
IC5003
FRAME
MEMORY
SW PWB
KEY_1/2
MECA_SW
HP_L/R
LED PWB
POWER_LED
REMOCON
EE_CDS
DIGITAL PWB
DBE 0-9
DGE 0-9
DRE 0-9
DBO 0-9
DGO 0-9
DRO 0-9
S7701~S7706
IR RECEIVE
E.E. SENSOR
IC5503
IC6503
S7707
J7001
IC8752
IC8751
SPEAKER(L)
SPEAKER(R)
LVD S
DRIVE
CONTROL
SWITCH
POWER
D8702
POWER
LCD
(PANEL)
HEADPHONE
(No.YA582<Rev.001>)2-7 2-8(No.YA582<Rev.001>)
CIRCUIT DIAGRAMS
ANALOG PWB CIRCUIT DIAGRAM (1/6) SHEET1
SHEET 2
TV_MAIN
AFT1
TV_L
TV_R
MSP_RSTO
TV_L
TV_R
MSP_RSTO
UHF/VHV
TUNER
TU3001
C3008
.01
GND
GND
C3003
OPEN
GND
ANALOG PWB ASS'Y(1/6)
SFL-1236A-H2
[LT-42GZ78, LT-42GZ78/B, LT-42GZ78/S]
SFL-1236A-BK [LT-42GZ78/BA]
SFL-1237A-H2
[LT-47GZ78, LT-47GZ78/B, LT-47GZ78/S]
L3002
R3014
R3015
C3009
10
100
100
BS_A9V
C3011
C3012
GND
BS_A5V
.01
C3544 C3546
11
R3547
R3546
680
BS_A9V
L3506
C3528 C3527
100
IC3504
GND
C3534
GND
C3561 C3564
.01 0
0
L3501
OPEN
C3535
BS_A5V
C3562
L3502
OPEN
.1
C3529
10
C3530
C3531
.1
L3503
C3532
OPEN
C3533
OPEN
*5
L3507
R3511
2.2k
R3505R3506
C3563
OPEN
GND
0
C3501
C3536
.1
*5
*5
C3537
R3504
C3525
10
K3501
0
R3512
R3503
680
C3526
.01
C3524
.001
R3508
C3505
OPEN
C3511
1k .01
.01
C3503
R3021
OPEN
C3565
C3502
.1
Q3502
R3501
OPEN
Q3504
OPEN
1k
OPEN
R3502
OPEN
C3504
OPEN
GND
100
IC3501
.01
C3512
BS_A5V
NPN
Q3002
GND
C3523
.001
Q3003
C3513
R3026
100
NPN
2p
X3501
R3017
OPEN
R3020
BS_A5V
GND
R3019
1K
R3025
C3547C3545
.01.01
R3517
10k
R3516
Q3503
100
C3517
.01
K3502
LC3501 L3504
C3515
.1
R3515
100
R3514
100
R3510
OPEN
OPEN
R3509
2p
C3514
R3018
OPEN
1K
R3023
OPEN
R3022
OPEN
R3024
1K
1K
100
C3516
C3518
2200p
C3007
C3014
10
10
Y3001
OPEN
Y3002
0
100
L3003
R3009
2.2k
R3008
0
C3010
C3001
0.0022
.01
GND
32V
Q3001
NPN
R3010 R3011
1k 1k
R3016
100
R3007
R3006
100
R3001
OPEN
C3002
10
C3015
.01
GND
GND
SHEET 2
SCL3A5
SDA3A5
SFL-1237A-BK [LT-42GZ78/BA]
SCL3A5
ggs20021_1031_2/6_0.0
2-10(No.YA582<Rev.001>)(No.YA582<Rev.001>)2-9
A
NALOG PWB CIRCUIT DIAGRAM (2/6) SHEET 2
OPEN OPEN
CNCV1
DVI_L
DVI_R
PC_R
PC_G
PC_B
PC_HS
PC_VS
V3_G_Y
V3_B_Cb
V3_R_Cr
V3_VIN
V3_LIN
V3_RIN
SHEET 3
SHEET 5
LED PWB
CN100U
SHEET 26
SHEET 5
SW PWB
CN100R
SHEET 27
V2_RIN
V2_LIN
V2_VIN
V2_YIN
V2_CIN
V2_S
V1_G_Y
V1_B_Cb
V1_R_Cr
V1_RIN
V1_LIN
V1_VIN
V1_YIN
V1_CIN
V1_S
MON_V
MON_Y
MON_C
MON_L
MON_R
DIN_PHOTO
SDA3A
SCL3A
HP_MUTE
CARD_DA
CARD_CK
AMP_MUTE
HP_DET
MON_V
MON_Y
MON_C
MON_L
MON_R
DIN_PHOTO
SDA3A
SCL3A
HP_MUTE
CARD_DA
CARD_CK
AMP_MUTE
CN00U
HP_L
HP_R
CN00R
BS_A9V
R101
100k
R102
100k
C101
100
GND
R103
100k
R104
100k
GND
PC_R
PC_G
PC_B
PC_HS
PC_VS
0
R110
V3__G_Y
0
R111
V3__B_Cb
0
R112
V3__R_Cr
V3_VIN
V3_LIN
V3_RIN
V2_RIN
V2_LIN
V2_VIN
R120
0
V2__YIN
0
R121
V2__CIN
0
R122
V2__S
V1_G_Y
MON_C
V1_B_Cb
V1_R_Cr
V1_RIN
V1_LIN
V1_VIN
V1_YIN
V1_CIN
V1_S
MON_V
MON_Y
STB_5V
REMOCON
EE_CDS1
REC_LED
DBS_LED2
DBS_LED1
DIMMER
BS_A5V
POW_LED
BS_A3.3V
GND
K101
K102
K103
K104
K105
MECA_SW
K106
K107
KEY2
KEY1
K108
GND
IC106
AUDIO SELECT
R295
100k
C102
2.2
C206
R280
4.7
100k
DIN_SR
DIN_R
GND
IC103
C147
10
C146
100
AMP
IC104
C151
10
C150
100
AMP
IC105
C155
10
C154
100
AMP
BS_A9V
BS_A9V
BS_A9V
BS_A9V
C103
2.2
BS_A9V
GND
R296
100k
DIN_SL
DIN_L
GND
MON_VOUT
MON_YOUT
C145
10
GND
C144
1
C149
10
GND
C148
1
C153
10
R194
0
GND
C152
1
B1_POW
POW_GOOD
MAIN_POW
MAIN_POW
POW_GOOD
SHEET 6
4.7
B1_POW
R297
100k
C204
AC_IN
AC_IN
R105 R106
10k 10k
Q101
GND GND
C201
C133
GND
R184
BS_A5V
C134
1
0.1
C211
0.1
10
0.1
0.1
0.1
C143
0.1
GND
MAXX_RST
1080P_SW
1080P_SW
SHEET 5
BS_A9V
Q102
DVI/DIN
V2__S
V2__CIN
V2_VIN
V2__YIN
C200
0.1
IC101
V3_VIN
R181
C132
220k
1
GND
0.1
1
220k
C138
C139
R188
OPEN
OPEN
V1_CIN
V1_VIN
V1_YIN
BS_A5V
C131
0.1
C130
47
C199
0.1
C129
0.1
VIDEO/AUDIO SELECT
C141
C202
C270
C142
.1
.1
.1
6.8k
6.8k
6.8k
6.8k
33k
BS_A5V
R140
R141
R143
R144
R142
V1_LIN
V1_RIN
V2_LIN
V2_RIN
MSP_RSTO
D284
D283
A_MUTE
M_MUTE
A_MUTE
MAXX_RST
MSP_RSTO
M_MUTE
SHEET 3,5 SHEET 1
SHEET 5
.1
6.8k
6.8k
33k
C272
R146
R147
R145
V3_LIN
V3_RIN
4.7
OPEN
33k
R150
C273
AUDIO_R
A-MUTE
CN001
OPEN
0.1
R153
R154
C275
C274
C106
R170
OPEN
C107
DTU_RIN
DTU_LIN
DVI/DIN
STB_5V
KEY2
KEY1
DIMMER
REMOCON
0
R300
SHEET 1
OPEN
GND GND
CARD_Y
DEC_Y
DTU_VIN
V1_S
R169 R168
100 100
D101 D102
OPEN OPEN
C128
C116
C127
OPEN
10
0.1
33k
47
OPEN
OPEN00
R155
R157
R156
R158
R159
100
AC_IN
OPEN
R310
1080P_SW
R311
R171
A-MUTE
MAIN_POW
TV_L
AUDIO_R
BS_A9V
TV_R
B1_POW
MAXX_RST
REC_LED
0
R312
C108
POW_GOOD
GND
DIGITAL PWB ASS'Y(7/12)
OPEN
OPEN
R209
R208
OPEN
OPEN
OPEN
C216
C217
C218
CARD_Cb
CARD_Cr
0
R160
DIN_SL
DBS_LED1
DBS_LED2
R301
R302
CN001
SHEET 13
OPEN
R210
CARD_HD
OPEN
OPEN
C219
C220
CARD_VD
CARD_LIN
CARD_RIN
GND
C126
1
GND
R167
220k
C117
0.1
R163
R162
0
R161
GND
STB3.3VBS_A5V
R290
OPEN
C290
STB3.3V
OPEN
GND
GND
HP_MUTE
AMP_MUTE
5.6K
5.6K
MSP_RSTO
R202
R308
EE_CDS1
MECA_SW
POW_LED
5.6K
R307
R303
R309
R304
OPEN
OPEN
D290
OPEN
BS_A9V
CNCV2
OPEN
GND
PC_R
PC_B
PC_G
SCL3A5
SDA3A5
CVBS/Y_OUT
C125
1
MAIN_VY
BS_A5V
C124
1
MAIN_C
C123
0.1
GND
BS_A5V
C120
C122
1
0.1
SUB_C
R166
C121
220k
1
C119
1
220k
R165
C118
1
R164
GND
220k
CARD_RIN
CARD_LIN
DIN_SR
R222
0
Q114
OPEN
R205
OPEN
0
R203
Q115
OPEN
R204
0
CARD_CK
CARD_DA
OPEN
R305
TEXT_R
DIN_PHOTO
OPEN
R306
SCL3A
SDA3A
TEXT_G
C286
OPEN
C285
OPEN
000
R190
C291
R221
OPEN
DEC_Y
TEXT_B
TV_MAIN
L104
R197
OPEN
0
L103
OPEN
L102
OPEN
C287
OPEN
R191
R192
C292
C293
GND
DTU_Y
DTU_Cb
DTU_Cr
V3__G_Y
V3__R_Cr
V3__B_Cb
C234
C235
R236
R237
R238
R239
R241
R242
R243
C186
R245
BS_A5V
C187
0.1
R246
C189
R247
R277
R248
R251
R252
R255
R256
R259
GND
C284
OPEN
C283
OPEN
C282
OPEN
GND
AFT1
.01
0
100
100
100
0
0
0
OPEN
0
0
10
0
0
OPEN
0
OPEN
0
OPEN
0
0.01
C156
MAIN_VY
.01
SUB_C
TV_R
TV_R
C233
.01
0.01
C157
TV_L
TV_L
V1_R_Cr
C183
.01
C182
0.01
C158
C276
MAIN_C
R211 R212 R213
OPEN OPEN OPEN
CARD_Y
TV_MAIN
TV_MAIN
.01
C277
.01
PC_HS
V1_G_Y
V1_B_Cb
C180
C179
47
0.1
C181
0.01
IC102
VIDEO SELECT
C278
.01
C161
.01
.01
CARD_HD
CARD_Cb
CARD_Cr
BS_A5V
R206
Q106
5.6K
BS_A5V
R207
Q107
5.6K
PC_VS
C178
1
R216 R217 R218
0
CARD_VD
TEXT_G
BS_A5V
SDA3A5
C197
CN0UV
DTU_RIN
C207
OPEN
R278
C177
0.1
C175
.01
OPEN
D103
R219 R220
100
C174
GND
330p
C173
68p
R279
0
C172
0.1
R230
OPEN
GND
C171
0.01
150K
R183
C170
0.01
BS_A5V
C169
0.01
C168
0.1
BS_A5V
C167
0.1
OPEN
D104
100
BS_A5V
Q113
NPN
R228
330
C184
R229
150p
OPEN
R231
C185
33
82p
R232
470
L101
GND
BS_A5V
R535
100
BS_A5V
R225
10K
D105
R224
2.2K
Q108
NPN
R223
C166
2.2K
.01
GND GND
GND
GND
CVBS/Y_OUT
DIN_L
DIN_R
R261
2.7k
R260
100
Q109
PNP2
C176
0.01
0
0
TEXT_R
TEXT_B
SCL3A5
OPEN
R584
DTU_LIN
R585
C208
OPEN
C194
DTU_Cr
C195
DTU_Y
C196
DTU_Cb
DTU_VIN
R265
330
R264
100
0.1
Q111
R263
PNP2
330
R262
100
C262
0.1
Q110
PNP2
C261
0.1
IC541
GND
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
R267
330
R288
R266
100
C264
0.1
Q112
R289
PNP2
R293
C263
R294
BS_A5V
R538
1k
D503C533
0.1
GNDGND
OPEN
C198
OPEN
R268
OPEN
R269
OPEN
R270
OPEN
R271
OPEN
GND
CN002
82
82
82
0
GND
SCL3A5
SDA3A5
MAIN_R
MAIN_L
SHEET 1,3,6
SHEET 5
OPEN
DIGITAL PWB ASS'Y
(2/12)
CN002
SHEET 8
ANALOG PWB ASS'Y(2/6)
SFL-1236A-H2 [LT-42GZ78, LT-42GZ78/B, LT-42GZ78/S]
SFL-1236A-BK [LT-42GZ78/BA]
(No.YA582<Rev.001>)2-11 2-12(No.YA582<Rev.001>)
SFL-1237A-H2 [LT-47GZ78, LT-47GZ78/B, LT-47GZ78/S]
SFL-1237A-BK [LT-42GZ78/BA]
ggs20021_1031_1/6_0.0
A
NALOG PWB CIRCUIT DIAGRAM (3/6) SHEET 3
V1_S
GND GND
J401
J401J401J401
J401
VIDEO-1
GND
VIDEO-2
J403
J403
J403
J403
J403
GND
R402
75
GND
GND
C434
OPEN
GND
C435
OPEN
J402
GND
GND
GND
GND
GND
GND
C436
OPEN
GND
C437
OPEN
2.2
R401
75
2.2
GND GND
R403
75
GND
2.2
R404
220k
GND
2.2
R405
220k
GND
2.2
R406
75
GND
2.2
R407
75
GND
2.2
R408
75
GND
2.2
R410
75
R411
75
2.2
GND
R412
75
GND
2.2
R413
220k
GND
2.2
R414
220k
GND GND
C402
C401
.01
C403
C404
C405
C406
C407
C408
C409
C410
.01
C411
C412
C413
D401
*1
GND
V1_YIN
D403
*1
V1_CIN
D402
*1
GND
V1_VIN
D404
*1
GND
V1_LIN
D405
*1
GND
V1_RIN
D406
*1
GND
V1_G_Y
D407
*1
GND
V1_B_Cb
D408
*1
GND
V1_R_Cr
D409
*1
GND
V2_S
D411
*1
GND
V2_YIN
D412
*1
V2_CIN
D413
*1
GND
GND
V2_VIN
D414
*1
GND
V2_LIN
D415
*1
GND
V2_RIN
D416
*1
GND
R464
75
C463C462C461
100p100p100p
J410
R467R461
7575
R476
330
R475
330
C469
D465 D466
*1
GND
C464
2.2
C465
2.2
C466
2.2
D462D461
D463
*1
*1*1
100p
PC_VS
PC_HS
C468
100p
*1
PC_B
PC_G
PC_R
D492
R491
1M
C491
10
C492
0.1
D491
C493
100
GND
BS_A5V
PC_VS
PC_VS
PC_HS
PC_HS
PC_R
PC_R
PC_G
PC_G
PC_B
PC_B
DIN_PHOTO
DIN_PHOTO
C494
1000p
GND
V1_S
V1_CIN
V1_YIN
V1_VIN
V1_LIN
V1_RIN
V1_G_Y
V1_B_Cb
V1_R_Cr
V2_S
V2_YIN
V2_CIN
V2_VIN
V2_LIN
V2_RIN
V3_VIN
V3_LIN
V3_RIN
V3_G_Y
V3_B_Cb
V3_R_Cr
V1_S
V1_CIN
V1_YIN
V1_VIN
V1_LIN
V1_RIN
V1_G_Y
V1_B_Cb
V1_R_Cr
V2_S
V2_YIN
V2_CIN
V2_VIN
V2_LIN
V2_RIN
V3_VIN
V3_LIN
V3_RIN
V3_G_Y
V3_B_Cb
V3_R_Cr
SHEET 2
VIDEO-3
HDMI-1
AUDIO INPUT
L/R
MONITOR
OUT
C417
2.2
R418
GND
J405
J405
J406
J406
J408J408J408J408
J408
GND
J407
GND
C438
OPEN
GND
C439
OPEN
GND
C440
OPEN
GND
C441
OPEN
GND
GND
GND
GND
C442
OPEN
GND
C443
OPEN
75
C418
2.2
GND
R419
220k
C419
2.2
GND
R420
220k
C420
2.2
GND
R421
75
C421
2.2
GND
R422
75
C422
2.2
R423
75
GND GND
C424
2.2
R426
220k
C425
GND
2.2
R427
220k
GND
R431
75
R433
R434
75
2.2k
GND
R435
75
R436
2.2k
GND
R437
390
R438
22k
R440
GND
390
R441
22k
GND
V3_VIN
D420
*1
GND
V3_LIN
D421
*1
GND
V3_RIN
D422
*1
GND
V3_G_Y
D423
*1
V3_B_Cb
GND
D424
*1
GNDGND
V3_R_Cr
D425
*1
D427
GND
D428
GND
DVI_L
*1
DVI_R
*1
MON_C
MON_Y
ANALOG PWB ASS'Y(3/6)
DVI_R
DVI_L
MON_C
MON_Y
MON_V
MON_L
MON_R
M_MUTE
DVI_R
DVI_L
MON_C
MON_Y
MON_V
MON_L
MON_R
M_MUTE
SFL-1236A-H2 [LT-42GZ78, LT-42GZ78/B, LT-42GZ78/S]
MON_V
C431
2.2
Q432
GND
R439
470
R442
470
Q433
D431
*1
C432
GND
2.2
D432
*1
GND
R443
1k
C433
1
GND GND
MON_L
MON_R
M_MUTE
R444
39k
Q431
GND
GND
SFL-1236A-BK [LT-42GZ78/BA]
SFL-1237A-H2 [LT-47GZ78, LT-47GZ78/B, LT-47GZ78/S]
SFL-1237A-BK [LT-42GZ78/BA]
ggs20021_1031_5/6_0.0
2-14(No.YA582<Rev.001>)(No.YA582<Rev.001>)2-13
A
NALOG PWB CIRCUIT DIAGRAM (4/6) SHEET 4
ANALOG PWB ASS'Y(4/6)
SFL-1236A-H2 [LT-42GZ78, LT-42GZ78/B, LT-42GZ78/S]
SHEET 5
AMP_R
AMP_R
AMP_L
AMP_L
AMP-MUTE
AMP-MUTE
SFL-1236A-BK [LT-42GZ78/BA]
SFL-1237A-H2 [LT-47GZ78, LT-47GZ78/B, LT-47GZ78/S]
SFL-1237A-BK [LT-42GZ78/BA]
C6651
4.7
C6661
4.7
R6106
5.6k
R6107
5.6k
R6111
OPEN
C6128
OPEN
R6109
33K
R6108
33K
R6126
OPEN
C6103
OPEN
C6102
OPEN
Q6104
OPEN
R6112
OPEN
D6104
DI
R6110
OPEN
GND
Q6103
OPEN
R6120
2.7k
GND
Q6106
NPN
R6119
12k
R6121
OPEN
GND
Q6102
OPEN
R6124
22k
GND
GND
C6105
4.7
C6106
4.7
Q6105
R6116
OPEN
R6118
Q6107
OPEN
22k
AU_GND
100K
R6113
GND
OPEN
OPEN
R6133
R6114
STB_5V 5V
C6126
1
C6127
22
AU_GND
C6104
1
C6107
1
100K
100K
OPEN
R6134
R6115
R6135
AU_GND
R6127 R6128
0
OPEN
AU_VCC
R6117
100K
R6125
C6109
1
OPEN
C6108
C6125
0.22
IC6001
AUDIO OUT
.01
C6110
.22
GND
C6124
.22
C6111
.22
L6103
C6123
.33
L6104
L6101
.33
L6102
C6112
AU_GND
AU_VCC
C6118
1
AU_GND
AU_GND
C6120
1
AU_GND
C6122
.22
AU_GND
C6117
1
C6115
1
AU_VCC
C6113
.22
AU_GND
C6121
.22
K6103
C6119
AU_GND
C6116
K6102 K6101
C6114
.22
K6104
R6148
OPEN
R6147
OPEN
R6146
OPEN
R6145
OPEN
R6144
OPEN
R6143
R6142
R6141
R6140
OPEN
C6662
OPEN
C6663
OPEN
AU_VCC
K6601
C6602
AU_GND
C6601
0.1
CN10F
CN0SR
MAIN POWER PWB(2/3)
CN00F
SHEET 20,23
SPEAKER(R)
AU_GND
SPEAKER(L)
AU_GND
R6158
OPEN
R6157
OPEN
R6156
OPEN
R6155
OPEN
0
0
0
R6154
OPEN
R6153
OPEN
R6152
OPEN
R6151
OPEN
R6150
OPEN
R6149
OPEN
CN0SL
(No.YA582<Rev.001>)2-15 2-16(No.YA582<Rev.001>)
GND
AU_GND
GND
AU_GND
ggs20021_1031_6/6_0.0
A
NALOG PWB CIRCUIT DIAGRAM (5/6) SHEET 5
BS_A3.3V
IC604
ANALOG PWB ASS'Y(5/6)
SFL-1236A-H2
47
.01
C641
C638
10
100
C640
OPEN
R614
C639
10
L608
47
R659
1
C631
AUDIO CONTROL
.01
4.7
C620
C618
IC601
IC601
R620
IC603
R621
47
R622
47
R623
47
R626
R624
4.7k
100
R625
OPEN
R628
4.7K
1
L609
1
C632
474747
C633
R612
111
4.7
1
C615
C616
C614
C617
C613
C602
R610
R611
.01
GND
R667
10K
R668
10K
R669
10K
BS_A5V
K601
10K
10K
R670
R671
BS_A5V
IC605
C649
1
R627
100
R629
OPEN
L605L606
C601
.01
R644
2.2K
R609
100K
R664
R665
R666
C648
1
C646
C647
100
.01
C655
GND
.01
C654
47
3.3V
C644
47
C667
47
C666
47
C603
12p
C604
12p
10K
10K
10K
GND
R660
0
OPEN
L602
OPEN
L603
R661
0
C645
.01
D609
OPEN
D608
OPEN
X601
D602
C650
.01
C651
.01
C653
100
GND
C652
100
GND
C627
0
C628
0
GND
R774
OPEN
C771
OPEN
R773
OPEN
R771
R772
OPEN
OPEN
R770
0
C772
D603
D606
D610
OPEN
[LT-42GZ78, LT-42GZ78/B, LT-42GZ78/S]
SFL-1236A-BK [LT-42GZ78/BA]
BS_A3.3V
SFL-1237A-H2
[LT-47GZ78, LT-47GZ78/B, LT-47GZ78/S]
SFL-1237A-BK [LT-42GZ78/BA]
BS_A9V
L604
OPEN
C663
OPEN
R642
0
C661
OPEN
IC606
OPEN
C662
OPEN
R643
0
0
R766R763
OPEN0
C752
4.7
HEADPHONE
AMP
IC751
C761
100
R760
C757
47k
4.7
R761
0
OPEN
OPEN
C756
1
GND
Q752
R655
R657
C670
IC752
OPEN
C659
0
R634
0
0
R638
R632
OPEN
OPEN
C657
R630
OPEN
R631
OPEN
C656
OPEN
R633
OPEN
R776
OPEN
C775
OPEN
R780
R778
R787
R786
R777
0
R783
0
C773
0
R775
OPEN
0
0
R782
OPEN
R781
OPEN
R779
0
0
C776
OPEN
BS_A5V
BS_A9V
R784 R785
OPEN
POW_GOOD
R673
OPEN
C672
D607
OPEN
R650
56k
GND
D604
D605
OPEN
C670
R662
C774
OPEN
15k
*
R755
R756
R757
4.7k
R655 R656
* OPEN
Q601
PNP
Q602
NPN
0
0
Q751
PNP
R758
100k
STB_5V
R657
*
R651
100k
R652
OPEN
R653
OPEN
R636
OPEN
R637
OPEN
C658
OPEN
R635
R762
OPEN
R767
OPEN
R640
OPEN
OPEN
R641
R639
C660
0
0
GND
VCC5V
BS_A5V
C751
OPEN
C758
OPEN
R759
0
16V
5V24V BS_A9V
R658
R672
OPEN
OPEN
D611
OPEN
C671
OPEN
R654
OPEN
GND
AMP_L
AMP_L
AMP_R
AMP_R
AMP-MUTE
AMP-MUTE
C753
220
R765
R764
C759
1k470.1
C754
47
C755
R768
220
C760
0.1
1k
R769
47
HP_R
HP_R
HP_L
HP_L
SHEET 4
SHEET 2
SHEET 2
MAIN_L
MAXX_RST
SCL3A
SDA3A
CARD_DA
CARD_CK
HP_DET
AMP_MUTE
HP_MUTE
M_MUTE
A_MUTE
MAIN_R
R619
OPEN
C636
C637
100
.01
GND
IC602
C634
C635
100
.01
GND
.01
100
C643
L607
C665
1
GND
R615
1K
100
R616
R617
L601
R618
10K
C626
1
C686
4.7
C685
4.7
R604
OPEN
R603
A
OPEN
R602
0
0
R601
100
C629
C630
47
.01
C622
OPEN
1
0.001
C623
C624
0.001
C625
R606
10K
R605
10K
C642
10K
R663
R613
10K
C664
0.01
C668
47
C619
10
C621
100
R608
R607
10K
10K
GND
ggs20021_1031_3/6_0.0
2-18(No.YA582<Rev.001>)(No.YA582<Rev.001>)2-17
A
NALOG PWB CIRCUIT DIAGRAM (6/6) [POWER BLOCK] SHEET 6
R912
OPEN
VCC5V
STB_5V
STB3.3V BS_A9VBS_A5V
5V
ANALOG PWB ASS'Y(6/6)
SFL-1236A-H2
[LT-42GZ78, LT-42GZ78/B, LT-42GZ78/S]
SFL-1236A-BK [LT-42GZ78/BA]
IC902
C905
GND
D961
OPEN
47
C906
0.1
C963
C962
OPEN
OPEN
R966
OPEN
GND
L961
OPEN
OPEN
OPEN
OPEN
D962
OPEN
C966
C967
C969
GND
C904
R967
OPEN
IC961
OPEN
R968
OPEN
C961
OPEN
GND
R961
C965
OPEN
OPEN
C968
OPEN
32V
24V
R906
OPEN
C964
OPEN
L902
R963
OPEN
R964
OPEN
C913
GND
L903
R965
OPEN
C914
GND
IC951
OPEN
C951
OPEN
C952
OPEN
GNDGND
R903
L901
OPEN
OPEN
C953
OPEN
L906
OPEN
R951
OPEN
C901 R904
OPEN OPEN
GND
C920
OPEN
GND
GND
D903
OPEN
GND
R905
OPEN
GND
R962
OPEN
D963
OPEN
SFL-1237A-H2
[LT-47GZ78, LT-47GZ78/B, LT-47GZ78/S]
SFL-1237A-BK [LT-42GZ78/BA]
CN0UD
OPEN
OPEN
GND
DC-DC PWB
CN00H
SHEET 25
SHEET 1,2,3
SDA3A5
SCL3A5
CN00H
POW_GOOD
OPEN
R983
C907
OPEN
R931
GND
R902 R901
CBW
GND
OPEN
OPEN
OPEN
R933
OPEN
C931
OPEN
D931
OPEN
R939
OPEN
R938
OPEN
R937Q931
OPEN
R935R934R932
OPENOPENOPEN
R936
OPEN
Q934
OPEN
Q933
OPEN
R940
OPEN
Q932
OPEN
16V
GND
C971
IC981
OPEN
R981
OPEN
R984
C982
C981
OPEN
IC971
R982
C972
OPEN
OPEN
GND
C973
GND
1080P_SW
MAIN_POW
POW_GOOD
B1_POW
SHEET 2
AC_IN
ggs20021_1031_4/6_0.0
(No.YA582<Rev.001>)2-19 2-20(No.YA582<Rev.001>)
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