Sony KF-50XBR800 Service Manual page 78

BLOCK DIAGRAM (8)
X2500
VAR OUT R
24.576MHz
VAR OUT L
MAIN L
V5 L
V6 L
MAIN R
V5 R
V6 R
TO
U (1/2)
AUDIO
DATA
IC2502
AUDIO DSP
IC2503
A01 7 AMP
A11 6
A0T1 8 2 1
2 X0
A02
11
A12
3 X1 12
A0T2 7
10 6
AU H L
AU H R
IC2504
AMP
A03 19
49 LIN1
A13 18
48 LIN2
AU W L
A0T3 20 2 1
47 LIN3
46 LIN4
53
RIN1 A04 23
52
RIN2 A14 24
AU W R
51
RIN3 A0T4 22 6 7
50
RIN4
ELR I/O 29
Q2504 Q2505
EPR 41
RST 36
D2500
IFD1 39
IFCK 38
DSP ERR
SDA Q2503
GATE
SCL Q2502
GATE
D2500
DSP CUT
IC2500
RESET
DSP RST D2501
2 MRST VOUT 1
U (INPUT SELECT
(2/2)
S4411 S4410 S4409 S4408 S4407 S4406 S4405
G F f g
MENU
TV/VIDEO
Q4503
D4505
LED DRIVER
STANDBY
D4503 Q4509
LED DRIVER
TIMER
Q4508
D4510
LED DRIVER
LAMP
IC4501
(IR REC) OUT
– 77 –
KF-50XBR800/60XBR800
3 KEY 2
TO
C
A BOARD
CN1013
2 KEY 1
S4404 S4403 S4402 S4401
CHANNEL VOLUME
+ +
CHANNEL 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
1
H3 (SIRCS,POWER SW)
K
RM-Y912 RM-Y912