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
-
O
U
T
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
IP
RO
DC
DETECT
V
P
RO
IPROTECT
VPROTECT
VOLTAGE
DETECT
V
O
L
H
VOLH
THERMAL
P
501
P
9002
P8002
P
9011
SUB
TRANS.
Power Supply
for STANDBY
VPRO : DC voltage detection
IPRO : Current detection
