Kenwood RX-28 Service Manual page 13

CIRCUIT DESCRIPTION
Deck Microprocessor : uPD75112GF-E40 (X28-: IC20)
1.Pin connection
REC MUTE
BIAS
R/P
A/B
OMANO OA WH —
POWER
VUP
ACSP ACPM ASOL BCSP
VDWN
BUSY DATA A.MUTE
Vdd +5V SELA SELB SELINH
uPD75112GF-E40
BCPM BSOL
Vss
KR3 KR2 KR1 KRO
SELTAPE NOGE
PHA PHB
RX-28
KSO
KS1
KS2
KR4
KR5S
KR6
KR7
MSRQ
SC
SO
Sl
SRDY
SRQ
NC
NC
GND
GND
LEVEL
DPSS
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