Kenwood X-W320, Service Manual

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X-W320
3
CIRCUIT DESCRIPTION
1. Microprocessor
1-1 Microprocessor periphery block diagram
Pin No. I/O FUNCTION KR0 KR1 KR2 KR3
63 FIP23 SB CW CCW
64 FIP22 SC COUNTER B F.F A REV A STOP A
65 FIP21 SD REW A REV MODE DOLBY FWD A
66 FIP20 SE COUNTER A DUBB HIGH DUBB NOR CCRS
67 FIP19 SF O.T.E PAUSE RECORD STOP B
68 FIP18 SG REW B F.F B REV B FWD B
KEY MATRIX
REC MUTE
LINE MUTE
PLAY B/A
B BIAS
B R/P
DATA
CLOCK
STROBE
DOLBY C/B
DOLBY ON/OFF
LEVEL L
LEVEL R
CLK
STROBE
DATA
RESET
LINE MUTE
REC MUTE
SOLB CPMB
CSPB B PACK R REC F REC B CrO2 PHB B PLAY SOLA CPMA CSPA PHA A CrO2
A PLAY
A PACK
BIAS NOR
BIAS CRO2
PB AMP
TAPE A
TAPE B
DOLBY NR
REC EQ
IC 102
HX-PRO
FL
IC 201
SYSTEM IC
u-COM
IC 101
DRIVER B DRIVER A
R/P MECHA B PB MECHA A
KEY
MATRIX
CMAL2Z078A CMAL2Z077A
X-W320(K) COVER( 97.11.29 4:37 AM y [ W 6