Semiconductor Pin Assignments - Sony CA-325A Service Manual

SECTION B
SEMICONDUCTOR PIN ASSIGNMENTS
The circuit diagram of IC is obtained from the IC data book published by the manufacturer.
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— Je «1082 182885 pj ENNAD
1sS119 FII4F
LB156 TLG144 ; GREEN
a ss aad
2 1
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—— HZ ? 27EB ?
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age RD ? 7ESB ?
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2801623 Feta 28C2785 2SC3460 280774
2SA1226 = 2SC2757 PRINTED
s 2SA812
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ERROR AMP-1 (+) IN
ERROR AMP-2(+) IN Alsens
ini
ERROR AMP=1(-)IN
ERROR AMP~2(—) IN
2 ae
16
—=TIN2 (+) FEEDBACK
ouT
REF 5V REG OUT
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je CONT
DEAD~TIME CONT In[a] [OUTPUT CONT IN
CT IN
OUTPUT OuTPUT
RT IN COLLECTOR-2 our [CONTROL] FUNCTION
PARALLEL
EMITTER-2 out PUSH-PULL
© 3 GROUNDED
4 + CONNECTED To PIN14 SN74HCO2NS (T!) FLAT PACKAGE
C-MOS 2NPUT POSITIVE-NOR GATE
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COLLECTOR~1 out EMITTER~1 ouT
4
ERROR ane -1 { at
165 FLIP-FLOP
ERROR AMP-24 15 {_ PWM 8
{ coe COMPARATOR 9 cs
FEEOBACK a Sey
5 a7 62
osc
S 75 Ez
- Loic ERROR AMP
aTO.tVv SV REF
> REG O; LOW LEVEL
6) 5| 4 43 14 12) 1, HIGH LEVEL
R - OUTPUT SV REF Vee
Tr
eal
CONTROL
= REG
CA-325A/AP (J, UC, EK) B-1