Block Diagram (2) - Sony KF-WE50A1 Service Manual

KF-WE42A1/WE50A1/WS60A1
RM-1022 RM-1022 RM-1022

BLOCK DIAGRAM (2)

AUDIO
AG(2/2)
CTR
AG(2/2)
I2C
AG(2/2)
Q8401
+ 11V
BIAS
IC8404
Q8406
AUDIO PROCESSOR
MAIN-L
64 L IN OUT A 16
MAIN-R
63 R IN
OUT B 36
Q8411
LF IN B 35
22 SDA
Q8416
23 SCL LF OUT B 34
BUFFER
IC8403
HEADPHONE AMP
3
5
+ 9V
Q8402,8403
L-MUTE
Q8405
VAR-MUTE
MUTE SWITCH
HP-SW
IC8205
DD6V +2.5V/+3.3V
SWITCHING REGULATOR
Q8205 29 OUT1
U
+2.5V SWITCHING
64 OUT1
DRIVER L
1 INV1
Q8232
D8206
DD OVP
D8210 DD6V
Q8223 64 OUT2
U
+3.3V SWITCHING
DRIVER 64 OUT2 L
15 INV2
IC8204
+1.8V
SWITCHING REGULATOR
+1.8V 2
4
– 25 –
(AUDIO PROCESSOR/REGULATOR)
IC8402
FILTER-W
L
Q8404
3 1
BUFFER
R
Q8409
5 7
BUFFER
IC8405
LPF
WF
3 1
1
7
Q8412,8413
MUTE
VCC 24 DD6V
Q8230.8231
+B OFF DETECT
IC8206
+3.3V
SWITCHING REGULATOR
2 1
1 DD6V 4
WE42 / WE50 WS60
TO TO
D E
HMG BOARD HMG BOARD
CN2306 CN5306
AG (2/2)
WE42 / WE50
TO
CN8002 B
H3 BOARD
4 HP-SW CN4302
3 HP-L
WS60
1 HP-R
TO
C
H3 BOARD
CN6302
D8202
D8211
TO
G1 BOARD
CN6001
– 26 –