Sony KF-50XBR800 Service Manual page 77

IC2502
AUDIO DSP
2 X0
3 X1
X2500
VAR OUT R
24.576MHz
VAR OUT L
MAIN L
49 LIN1
48
LIN2
V5 L
47 LIN3
V6 L
46 LIN4
MAIN R
53 RIN1
52
RIN2
V5 R
51 RIN3
V6 R
50 RIN4
TO
U (1/2)
AUDIO
DSP ERR
SDA
SCL Q2502
GATE
DATA
D2500
DSP CUT
DSP RST D2501
IC2503
A01 7 AMP
A11 6
A0T1 1
8 2
A02 11
A12 12
A0T2 10 6 7
AU H L
AU H R
IC2504
AMP
A03 19
A13 18
AU W L
A0T3 20 2 1
A04 23
A14 24
AU W R
A0T4 22 6 7
ELR I/O 29
Q2504 Q2505
41
EPR
RST
36
D2500
IFD1 39
IFCK 38
Q2503
GATE
IC2500
RESET
2 MRST VOUT 1
U (INPUT SELECT
(2/2)
S4411 S4410 S4409 S4408 S4407 S4406 S4405 S4404 S4403
G F f g CHANNEL
MENU
+
TV/VIDEO CHANNEL
-
Q4503
D4505
LED DRIVER
STANDBY
Q4509
D4503
LED DRIVER
TIMER
Q4508
D4510
LED DRIVER
LAMP
IC4501
(IR REC) OUT 1
H3 (SIRCS,POWER SW)
3 KEY 2
TO
C
A BOARD
CN1013
2 KEY 1
S4402 S4401
VOLUME
+
VOLUME
-
U2 (KEY IN)
CN4502
9 STBY/STREO
8 TIMER
7 LAMP LED
5 SIRCS
TO
4 P-ON
B
A BOARD
S4501
6 GND
CN1013
POWER 2 GND
STBY5V 3 STBY+5V