HCD-XB88AVK, HCD-XB88K, LBT-XB88AVK, LBT-XB88KS - Sony Audio Service Manual (repair manual). Page 20

Read Sony HCD-XB88AVK / HCD-XB88K / LBT-XB88AVK / LBT-XB88KS Service Manual online

– POWER SECTION –
– 23 –
– 24 –
HCD-XB88AVK/XB88K
• R CH : Same as L ch
• SIGNAL PATH
          : FM
Rch
Q323
Rch
1
2
4
7
PROTECTOR
IC301
PROTECT
SWITCH
Q301
RY402
OVER LOAD
DET
Q601,651
THERMAL
DET
Q670,671
THP670
1
10
6
13
18
RY401
–1
–2
POWER AMP
IC601
OVER LOAD
DET
Q201
Rch
POWER AMP
IC201
FRONT
REAR
CENTER
DBFB
STK MUTE
R RELAY
D5V
SWITCHED
D5V
SW
Q905
D905
+5V
D7V
A+7.5V
A–7.5V
+5V REG
IC902
+7V REG
IC903
+12V REG
IC904
+12V
ST10V
PRO-LOG 10V
+10V REG
IC905
+7V, –7V REG
IC901
Q907
Q901
VFDP
XB88AVK
UNREG
–12V
POWER B+
POWER B–
SURR B+
SURR B–
AC
IN
AU/D5V SW
CD POWER
6
1
10
REAR
CENTER
FRONT
FRONT
SPEAKER
TM401
PHONES
J760
Rch
HP / SP
SWITCHING
Q401,405
FRONT
REAR
CENTER
SURROUND
SPEAKER
TM402
6
–1
RELAY
DRIVE
Q404
Rch
FAN MOTOR
DRIVER
Q961, 962
M
UNREG
–12V
M901
FAN
MOTOR
REAR
CENTER
3
1
3
1
1
10
2
9
4
3
1
3
1
+B
RELAY
DRIVE
Q403
RELAY
CONTROL
Q402
MUTE
SWITCH
Q331
POWER ON/OFF
CD REG
Q904
+5V REG
Q906
+7.5
–7.5
EN
V
CC
V
EE
RECT
D901
RECT
D110,111
VF REG
Q941
RECT
D104,105
VOLTAGE
SELECTOR
S901
RECT
D101
RECT
D102
RECT
D302,303
VF
XB88K
XB88AVK
VF
T501
POWER
TRANSFORMER
MAIN
SECTION
D
09
(Page 22)
T901
POWER
TRANSFORMER

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