Service manual

U9
PIC16F72ISO
MCU
U6
RX-8025SA
TIME
CONTROLLER
J8: From IR
Board
J6: From KEY
Board
J13: From SCALER Board
J14: From SCALER Board
I2C
Control
For
MCU
U7
CXA2069Q
A/V
SIGNAL
SWITCH
I2C
Control
For
Switch
J12: From Side I/O Board
U15
NJM4558M
Amplifier
Audio
Signal
U17
NJM4558M
Amplifier
U18
NJM4558M
Amplifier
UV9
TPA3100D2
POWER
AMPLIFIER
J32,J33:
To Speaker
J3
RCA
J9:
From TUNER
Board
J11
VGA
U4
74LVC126A
J2
RCA
J1
Update
Interface
J5: From
POWER
Board
CVBS
YC
Video
Audio
Signal
Headphone
Audio
VGA: HS and VS
VGA: HS and VS
Video Signal
for VGA
Video
Singal Inputl
Timer
Control
VGA: HS and VS
STB Signal
POWER: S+5V,+5V,
+12V,+18V,-12V
IR
Signal
KEY
Signal
Headphone
Audio
TV
CVBS
Signal
Input
SIF
Signal
Current
Audio
Signal
Audio
Output
YPbPr
Audio
Input
Main
Audio
Signal
Main
Audio
Signal
Main
Audio
Output
I2C
Control
For
TUNER
Update
Control
Signal
、
J17
SCART1
U1
P15V330Q
YPbPr
Video
Input
RGB
Video
Input
SEL
J16
VGA Audio
CVBS
Video
Audio
Signal
J18
SCART2
CVBS
YC
Video
Audio
Signal
CVBS
YC
Video
Signal
TV
CVBS
Signal
Output
U22
NJM4558M
Amplifier
Scart1
Audio
Signal
Scart1
Audio Output
AV
CVBS
Signal
Output
U16
NJM4558M
Amplifier
Scart2
Audio Output
FB1
ASP1
ASP2
（USE FOR LC26T1E）
11