20
20
HCD-GX450
HCD-GX450
4-3. BLOCK DIAGRAM – AMP SECTION –
I-PROTECTOR
95
O-STK-MUTE
24
I-SWR
25
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
J701
PHONES
SPEAKER
(IMPEDANCE USE 6 – 16
Ω)
(IMPEDANCE USE 6 – 16
Ω)
CONTROL
SUB WOFFER OUT
+
–
–
+
R
L
R-CH
R-CH
RY B+
RY B+
JK441
JK501
CN503
RY441
RY501
PROTECTOR
Q485
DC DETECT
Q481, 482
SWITCH
Q502
SWITCH
Q510
FAN ON/OFF
Q044
FAN
FAN DETECT
Q045
RELAY DRIVE
Q486
DETECT
Q503, 507
OVER LOAD
DETECT
Q501
DETECT
Q505, 506
STANDBY
SWITCH
Q489
AMP ON/OFF
Q933
MUTING
Q251
BUFFER
Q271
BUFFER
IC251
MUTING
CONTROL
Q261
+
R-CH
+
+
+
+
POWER
AMP
IC441
AMP
IC501
SYSTEM CONTROLLER
IC901 (3/4)
R-CH
+
+
+
O-SYS-MUTE
23
DBFB
SW OUT
HP IN
B
AUDIO/VIDEO
Section
Summary of Contents for HCD-GX450 - Stereo Mini System
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