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HCD-GTZ2/GTZ2i/GTZ3/GTZ3i
HCD-GTZ2/GTZ2i/GTZ3/GTZ3i
15
15
5-3. BLOCK DIAGRAM - AMP Section -
LINE AMP
IC252
D
F
E
POWER
AMP
IC800
MUTING
Q402
OVER LOAD
DETECT
Q801
OVER LOAD
DETECT
Q802
R-CH
MUTING
Q430
LINE AMP
IC253
+
R-CH
R-CH
R-CH
–1
–2
MUTING
CONTROL
Q670
LINE MUTE
58
STK MUTE
51
SW SPK RELA
Y
52
+
R-CH
FAN MOTOR
DRIVE
Q693 – 695,
Q697
RY800
+
–
–
+
+
RY500
D632
D807
M
M101
(FAN)
FAN MOTOR
DRIVE
Q110 - 113
M
M102
(FAN)
PHONES
+
–
SUBWOOFER
JK500
RELAY
DRIVE
Q500
FR SPK RELA
Y
53
PROTECT
50
RELAY
DRIVE
Q804
R-CH
J702
SYSTEM CONTROLLER
IC401 (3/4)
: AUDIO
SIGNAL PATH
R-ch is omitted due to same as L-ch.
(GTZ3/GTZ3i)
+
OVER LOAD
DETECT
Q803
R
L
FRONT
SPEAKER
JK800
G
H
LEVEL SHIFT
Q447
BASS AGC
OUT
SW OUT
BUFFER
Q431
AC CUT
DETECT
Q501
PROTECT DETECT
Q806 – 809, 811
HP_DET
44
DC DETECT
PROTECT
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