Block Diagram - Amp Section - Sony HCD-ZX80D Service Manual

7-5. BLOCK DIAGRAM – AMP SECTION –
DBFB F/B
M
(Page 26)
FL, FR, SL, SR, CTR FL
N
FR
(Page 26)
SL
SR
CTR
(ZX80D)
(ZX100D)
SW
P
(Page 26)
(ZX80D)
SW-MUTE
S
(Page 26)
• SIGNAL PATH
: AUDIO
HCD-ZX80D/ZX100D
POWER AMP
IC600
18 11
+
14 8
12
STANDBY SWITCH
Q604, 606, 610
OVER CURRENT PROTECTOR
IC550
CT VP
DC
4 2
DET
OUT OCP
OVER
3 1
LOAD
OVER LOAD
DETECT
Q730, 780
POWER AMP
IC702
18 11
+
14 8
19 21
(ZX100D)
12
STANDBY SWITCH
Q720 – 722
POWER AMP
IC800
11 4
+
15 6
13
STANDBY SWITCH
Q812
60 67
MASTER CONTROLLER
IC401 (5/6)
D624
+
–1
–2
RELAY DRIVE
OVER LOAD
RY646
Q644
DETECT
Q618, 668
TH629
THERMAL
DETECT
Q628, 630
D550
(ZX100D)
OVER LOAD
DETECT
Q770
–1
+
–2
RELAY DRIVE
RY760
Q763
RELAY DRIVE
RY761
Q762
(ZX100D)
D812
OVER LOAD
DETECT
Q800, 850
–1
–2
RELAY DRIVE
RY862
Q814
(ZX80D)
65 51 61
(ZX100D)
27 27
MUTING
Q640, 641
D655
MUTING CONTROL
+
SWITCH
Q634, 682
D654
PROTECT
SWITCH
Q647
OVER LOAD
DETECT
FAN MOTOR
Q648
CONTROL SWITCH
Q587, 589
FAN MOTOR
CONTROL SWITCH
Q581, 582
FAN MOTOR SPEED
CONTROL SWITCH
D764
+ +
D763
PROTECT
(ZX100D)
SWITCH
Q765
D765
(ZX80D)
PROTECT
SWITCH
Q815
AC CUT
Except US,
DETECT
Mexican
TH630
Q504
66 69 72 84 94
HCD-ZX80D/ZX100D
Ver. 1.1
J1103
PHONES
TM600
+
L
–
FRONT SPEAKER
–
R
+
AC CUT DETECT
R
(Page 28)
FAN MOTOR
UNREG M502
M
SWITCH
B+ (FAN)
Q588
FAN MOTOR
UNREG M501
M
SWITCH
B+ (FAN)
Q585
D582
D581
FAN MOTOR
CONTROL SWITCH
Q579 Q578
TM700
+
L
–
SURR SPEAKER
–
R
+
TM701
+
CENTER SPEAKER
–
TM101
+
SUBWOOFER
OUT
–
CN102
58 42
SYSTEM
CONTROL
SW-LEVEL-IN 95
TO
SS-WGV100D
SW-LED 100
(ZX100D)