HCD-GN77D
30
30
– AMP Section –
IC501
POWER AMP
IC301
POWER AMP
IC502
OVER CURRENT
PROTECTOR
: TUNER (FM/AM)
MUTING
Q503, 504, 581
F-R
DBFB
F/B
F-L
REAR-R
CENTER
REAR-L
STK MUTE
FAN DET
FAN-ON
FAN-K
OVER LOAD
DETECT
Q501, 551
+
+
+
+
MUTING
Q621, 671
MUTING
CONTROL
Q652
F-RELAY
HP-DET
HP-MUTE
FAN-K
OVER LOAD
DETECT
Q301, 341, 351
RELAY DRIVE
Q516, 517
H/P DET
F-RELAY
HP-MUTE
+
-
-
+
FRONT SPEAKER
IMPEDANCE
USE 6-16
Ω
SURROUND
SPEAKER
IMPEDANCE
USE 8
Ω
CENTER
SPEAKER
IMPEDANCE
USE 8
Ω
L
R
PHONES
J631
RY501
D+3.9V
TM501(1/2)
M
FAN MOTOR
DRIVE
Q851-854
DC FAN
M891
AC CUT DETECT
AC CUT DETECT
TH502
TH501
Q518
THERMAL
DETECT
Q505, 506
THERMAL
DETECT
Q514
Q602
VACS
CONTROL
+
+
+
RY381
RY382
TM501 (2/2)
L
R
RELAY DRIVE
Q383, 386
RELAY DRIVE
Q381, 384
D502
D391
D509
PROTECT
SWITCH
Q511
Q510
PROTECT
SWITCH
Q385
-
-
-
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299