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