Main Power/Sub Power Section - Sony HCD-GRX80 Service Manual

– MAIN POWER/SUB POWER SECTION –
F RELAY
FRONT
VH+
DBFB
STK MUTE
RY-SW
PROTECTOR
D
D+5V UNSW
MAIN
SECTION
(Page 24)
POWER ON/OFF
CD D+5V (SW)
CD A+5V (SW)
CD POWER
FL SW ON/OFF
STANDBY RELAY ON/OFF
09
THERMAL
DET
POWER AMP Q831, 832
THP831
IC801
Lch
18 14
16
VH+ SUPP
Q803, 881
OVER LOAD
DET
Q801
MUTE
SWITCH
Q804
Rch
MUTE
SWITCH
Q412, 411
JW51
RECTIFIER
D507
RECTIFIER
+5.6V (STBY) RDS D+5V UN SW
D922
RECTIFIER
+5V (STBY) +5V (LED)
D924
(DISPLAY) (DISPLAY)
D509
+5V OUT
D+5V
Q905
SWITCH
Q904
A+7V
SWITCH
Q923, 903
+5V REG RECTIFIER
D925
Q907
A–7V
+5V OUT
IC904
3 1
Q911
REG
CD MOTOR +7V
SWITCH SWITCH
Q908 Q912
TC MOTOR +12V
+10V REG
ST+10V
Q909
– 25 –
RY401
RELAY
VH+
DRIVE
Q435, 436, 431
SWITCH
Q437
Rch
PROTECT
MUTE
CONTROL
SWITCH
Rch
Q432 - 434
Q439
T951
POWER TRANSFORMER
+VH
RECT
AC1
D831
–VH
AC2
+VL
RECT
AC2
D832
–VL
AC1
DISPLAY
IC902
(VIA POWER)
3 1
REG
+7V REG
Q901,902,913
GRX80:E2,E3,EA3,SP,AR,TW
AC3
VOLTAGE
RECT
SELECTOR
D901-904
–7V REG
AC3
S951
Q951,952,914
AC4
RECT
IC901
3 1
D907-910
+7V REG
AC4
VF
IC903
3 1
+12V REG
VF
TM402
SURROUND
SPEAKER
RXD8,RXD8S
FAN MOTOR
M901
DRIVER M
FAN
UNREG
Q401, 402 MOTOR
–7V
Rch
FRONT
TM401
FRONT
SPEAKER
J701
PHONES
Rch
T11
SUB TRANSFORMER
SUB TRANS. D+5.6V
RECT
IC11
3 1
D12-15
5.6V REG
-26V REG RECT
VG
Q12, 13 D17-20
VF
COM MON
VF BUFF
VF
Q14, 15
SWITCH RELAY DRIVE
Q16, 17 Q11
RY11 RY11
GRX80
– 26 –
HCD-GRX80/RXD8/RXD8S
• R CH : Same as L ch
• SIGNAL PATH
: FM
• Abbreviation
E2 : Without SW tuner E model.
E3 : Without SW tuner E model.
EA3 : Saudi Arabia model.
SP : Singapore model.
MY : Malaysia model.
HK : Hong Kong model.
TW : Taiwan model.
AR :Argentine model.
RXD8,RXD8S
AC
IN
Q11
AC
IN