Onkyo HT-R494 User Manual

Amp Diag Mode after Abnormal Conditions
5 4 3
2
1
6
D
C
A
B
D
C
A
B
5 4 3
2
1
6
COMMON
Protect Mode
The unit goes into standby automatically when detect the abnormal condition of thermal detection, dc voltage detection or current detection. (e.g. TX-SR343 block diagram below)
BACLA-1734
BAAF-1712
BAETC-1713
BAPS-1737
BAPRC-1758
MPU
Q7009
VOLTAGE
DRIVE
SPEAKER - OUT
RELAY
RL6600
(FL/FR)
Power amp.
(Front L)
Q6050
Q6060
P6080
SPRLF
THERMAL
DETECT
Q6300
POWER
TRANS.
T901
CURRENT
DETECT
Power
Supply
AC IN
M POWER M POWER
Relay
RL9001
FUSE
F9001
SEC-1
(HIGH)
SEC-1
(LOW)
FUSE
F6401
F6402
RELAY
RL6430
RL6440
Power
Supply
(H)
(L)
(H)
or
(L)
SEC1H
IPRO
DC
DETECT
VPRO
IPROTECT
VPROTECT
VOLTAGE
DETECT
VOLH
VOLH
THERMAL
P501
P9002
P8002
P9011
SUB
TRANS.
Power Supply
for STANDBY
VPRO : DC voltage detection
IPRO : Current detection

Onkyo HT-R494 Specifications

General

Brand	Onkyo
Model	HT-R494
Category	Receiver
Language	English