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$-303/505/707
$-307/507/707
10551: uPC1237HA (SPEAKER RELAY DRIVER)
VCO ON
Overload detector
:
muting
Output offset detector
AC-OFF detector
Switch for latch/automatic-reset
GND
1C552: STK4132iI (POWER AMP)
TR7 TRIB
rleceee nerf!
'i
amit]
fmf LA
'
me
|
13
da | hee
03
05 06
8690
6
6
Of
O4
»
13
CTL-A
L (OPEN)
L (OPEN)
H
H
~10-
5
>
3
>
8
oO
m%
aD
TRIS
I
Ril
os
OB
CTL-B
OUT
L (OPEN)
IN4
H
IN2
L (OPEN)
IN3
H
MUTE
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