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. VSX-831 block diagram below)
BACLA-2020
BAAF-1979
BAETC-1980
BAPS-2016
BAPRC-2034
MPU
Q7009
VOLTAGE
DRIVE
RELAY
RL6501
(FL/FR)
Power amp.
(Front L)
Q6001
Q6021
SPRLF
THERMAL
DETECT
Q6800
POWER
TRANS.
T901
CURRENT
DETECT
Power
Supply
AC IN
PON_MAIN
PON_MAIN
Relay
RL9001
FUSE
F9002
SEC-1
(HIGH)
SEC-1
(LOW)
FUSE
F6901
F6902
RELAY
RL6911
RL6912
Power
Supply
(H)
(L)
(H)
or
(L)
SEC1H
IPRO
DC
DETECT
VPRO
IPROTECT
VPROTECT
VOLTAGE
DETECT
VOLH
VOLH
THERMAL
P6800A
P9002
P8002
P2800B
SUB
TRANS.
Power Supply
for STANDBY
VPRO: DC voltage detection
IPRO: Current detection
BATRM-2023
SPEAKER -
O
UT
