Circuit Description - Kenwood X-W320 Service Manual

1. Microprocessor
1-1 Microprocessor periphery block diagram
REC MUTE
PB AMP
LINE MUTE
PLAY B/A
TAPE A
B BIAS
TAPE B
B R/P
DATA
CLOCK
DOLBY NR
STROBE
REC EQ
DOLBY C/B
DOLBY ON/OFF
LEVEL L
LEVEL R
IC 102
BIAS NOR
HX-PRO
BIAS CRO2
KEY MATRIX
Pin No. I/O
63 FIP23
64 FIP22
65 FIP21
66 FIP20
67 FIP19
68 FIP18
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CIRCUIT DESCRIPTION

IC 101
DRIVER B
FUNCTION KR0
SB
SC COUNTER B
SD REW A
SE COUNTER A
SF O.T.E
SG REW B
KEY
FL
MATRIX
u-COM
R/P MECHA B
CMAL2Z078A
KR1
CW
F.F A
REV MODE
DUBB HIGH
PAUSE
F.F B
X-W320
IC 201
SYSTEM IC
DRIVER A
PB MECHA A
CMAL2Z077A
KR2 KR3
CCW
REV A STOP A
DOLBY FWD A
DUBB NOR CCRS
RECORD STOP B
REV B FWD B
3