Pioneer KEX-900 Service Manual page 37

@ G.E. P.C. Board
1€851, 852: KHA207 10651: KHA212
(DIGITAL) CK +VCC
GND
is | DATA
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Ly [2] Le}
vcc
PEE MUTE
INPUT OUTPUT
GND GND INPUT
OUTPUT
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g €
1 Q
7
A A
B
B
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Br* <
g
3g 8 8 NS
@ Logic Unit
® Control Unit
1C711 : uPD4538BG
M51522L (Pre Amp Unit)
vbD TI2 T22 cDd2 A2 52 a2 Q2
Vee GND
1C705 : M51304L
mH T2\ cot Al BI ai a vss
VARIABLE
RESISTOR
' VCC TIME IN NF OUT AGC GND NC
CONSTANT DETECT