Block Diagram - Main Section (2/2) - Sony HCD-XG100AV Service Manual

7-4. BLOCK DIAGRAM – MAIN Section (2/2) –
FEED
BACK
H
(Page 20)
TA-MUTING
M
(Page 20)
SW-MUTING
(Page 20) J
L IN
(Page 20) G
STK-POWER 1
HP MUTE 93
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (4/5)
LINE-MUTE 6
AC-CUT 22
RESET 12
PROTECT 27
F-RELAY 3
HP-IN 36
REAR-RELAY 4
SL
(Page 20) L
R-CH
POWER AMP
IC101
C
(Page 20) K
POWER AMP
IC801
D807
PROTECT
MUTING
SWITCH
Q113 TH831
Q804
STANDBY SWITCH
TEMPERATURE
R-CH Q803, 804, 834
DETECT SWITCH
MUTING CONTROL EVER +5V
SWITCH
Q802, 803
OVER LOAD
RESET SIGNAL
GENERATOR
R-CH
IC801
+
RESET
DC DETECT
+
SWITCH
R-CH
Q801
+ +
OVER LOAD
DETECT
Q101, 181
OVER LOAD
DETECT
Q151
Q831, 832
MUTING CONTROL
D401
DETECT
Q801, 851
OVER LOAD OVER LOAD
DETECT SWITCH DETECT SWITCH
Q432 Q437
SWITCH
Q433, 434
PROTECT SWITCH
Q439
FRONT SPEAKER PROTECT
RELAY DRIVE
Q401, 402
REAR (L-CH) /CENTER
D410
SPEAKER PROTECT
RELAY DRIVE
Q403, 407
REAR (L-CH)
SPEAKER PROTECT
RELAY DRIVE
Q404, 406
21 21
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: AUDIO
R-CH
HEADPHONE
MUTING
Q805, 855
SWITCH
–1
Q833
+
–2
RY401 R-CH
PROTECT SWITCH
Q431
RESET
(XG100AV)
+
–1
+ +
–2
RY402
RY403
HCD-XG100AV/XG900AV
J803
PHONES
+
L
–
+
R
–
TM401
FRONT SPEAKER
IMPEDANCE
USE 6 – 16
N
(Page 22)
M901
(FAN)
FAN MOTOR
M
DRIVE
Q961, 962
+
L
–
REAR
+
R
–
+
CENTER
–
TM402
SURROUND
SPEAKER
IMPEDANCE
USE 8 – 16