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HCD-GX355/GX555/RG270/RG475/RG575
23
23
HCD-GX355/GX555/RG270/RG475/RG575
6-3. BLOCK DIAGRAM – AMP Section –
OVER LOAD
DETECT
Q441
PROTECT
DETECT
Q487
RELAY SWITCH
Q488
TEMPERATURE
DETECT
Q483, 484
TH441
R-CH
R-CH
VOL OUT1
R-CH
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
: TUNER
D035
M001
(FAN)
J701
PHONES
FRONT SPEAKER
IMPEDANCE
USE 6 – 16
Ω
SUB WOOFER OUT
IMPEDANCE
USE 6 – 16
Ω
+
–
–
+
R
L
R-CH
R-CH
RY B+
JK441
+
–
JK501
RY441
RY501
PROTECTOR
Q485
DC DETECT
Q481, 482
RELAY DRIVE
Q502
FAN ON/OFF
Q044
FAN DETECT
Q045
RELAY DRIVE
Q486
TEMPERATURE
DETECT
Q503, 507
OVER LOAD
DETECT
Q501
DC DETECT
Q505, 506
STANDBY
SWITCH
Q489
AMP ON/OFF
Q933
MUTING
Q251
BUFFER
Q271
MUTING
CONTROL
Q261
+
R-CH
+
+
+
+
M
M
R-CH
+
+
+
SUB WOOFER
ON/OFF
Q274
(GX555/RG475/RG575)
(GX555/RG475/RG575)
(GX555/RG475/RG575)
DBFB
HP IN