Sony AVD-K800P Service Manual page 59

IC905 NJM2103D (MAIN BOARD)
CR 1
2 VREF
VSC
+ –
OUTC
3
GND 4
Q
R
IC400, IC500, IC600 uPC2581V-S (MAIN BOARD)
PROTECTOR
PRE
REG DRIVE
DRIVE
1 2 3 4 5 6
IC830, IC831 BA6956AN (MAIN BOARD)
1 2 3
8 RESET
– +
VSA
7
6
VSB/SESIN
5 V+
S
+ +
– –
BIAS CIRCUIT
PRE
DRIVE
DRIVE
7 8 9 10 11 12 13 14 15
TSD
CONTROL LOGIC
4 5 6 7 8 9
IC906 SI-8033JF (MAIN BOARD)
REGULATOR
ON/OFF
OSC
SOFT
START
1
AVD-K800P
OVER
CURRENT
PROTECTOR
LATCH
RESET
&
DRIVER
COMPARATOR
+
OVER HEAT
–
PROTECTOR
+
–
VREF
ERROR AMP
2 3 4 5
59