Service manual

MODEL: L423FR
Page 25
J610
HEAD-
PHONE
J601
VIDEO AUDIO
J605
S-VIDEO
J604
AUDIO(PC
)
J603
AUDIO(DVI)
J8A3
USB(UBB) for
CARD-LEADER
J3X0
RS232C
(Monitor
link)
J200
D-SUB
(PC)
J602
AUDIO
（COMP.）
J606
AUDIO-OUT
J5A0
COMPONENT
J303 J8A2
J8A0
J302
J402
J611
IC400
gm1601
(Scaler & Video
processor with CPU)
IC5G0
UPD64011BGM
(Digital_Decoder)
X5G0
IC5G1
IC42S161
00
(SDRAM)
IC2A0
M66471FP
(Video_process)
X2J1
X400
X300
X601
IC2C
IC200
EEP1K
IC201
LCX14
IC202
LC08
IC303
EEP64K
IC501
EEP2K
IC602
CS4334KS
(Audio_DAC
IC300
HD64F2437FV
(MAIN_CPU)
IC500
SiI9993CTG
(HDMI_Rx)
IC5A0
SM5301
(LPF)
IC403
HY5DU2832
22AQ
(DDRSDRA
M)
IC203
AD9888
(ADC for PC)
IC2A1
SiI160CTG
(TMDS_Tx)
IC405
PM39LV040
(4M_PROM)
IC401
EEP32K
IC670 IC680
IC5T1
MM156
6
(Mux)
IC3X0
ADM331
1
(RS232C_
di )
IC301
RESET
LOW-PASS
Filter
J8A5
J804
J6EA
J810
J6E4
J803 J802
J805
J801
J800
IC870
SAMPVCC
14V
IC880
AMPVCC
14.5V
IC840
4.5V
IC830
S3.3V
IC850
S8V
IC860
A12V
IC890
S5V
IC820
A9V
LED
IR
CARD
LEADER
CONT
J0P0
J0A
J0G0
J0F0
INVERTER-1
INVERTER-2
J400
J9E00
J9A00
J802
J802
IC9A11 IC9A11 IC9A11
J9F00
AC IN
L9A11
PFC
L9AW1
PFC
L9AX1
PFC
T9A10
24V
T9W31
24V
T9X31
24V
L9F00
L9F02
L9F01
0
LT-4260 BLOCK-DIAGRAM
IC601
CXA2089
(Video&Au
dio Mux)
To PANEL
(LVDS)
Writing for
IC400
Writing
for IC300
PWB-MAIN
PWB-SUB
PWB-POWER
IC6A0
IC6C
SPEAKER L SPEAKER RWOOFER
SP L SP SUB SP R
IC610
MSP3440G
(Audio_proces
sor)
J500
HDMI
MP7720DS
(Audio_AMP)
MP7720DS
(Audio_AMP)
MP7720DS
(Audio_AMP)
MP7720DS
(Audio_AMP)
BA178M05
(Regulator)
PQ1CY1032Z
(Regulator)
PQ1CY1032Z
(Regulator)
PQ1CY1032Z
(Regulator)
PQ1CY1032Z
(Regulator)
PQ1CY1032Z
(Regulator)
PQ1CY1032Z
(Regulator)
BA178M09
(Regulator)
IC8J0
A1.8V
IC8H0
D2.5V
IC8E0
D3.3V
IC8F0
AD3.3V
IC8X0
A5V
IC8A0
A3.3V
IC8K0
D1.8V
IC8L0
D1.5V