Kenwood KR-694 Service Manual page 18

KR-694/V5560/V6060
CIRCUIT DESCRIPTION
For pin numbers marked by an asterisk(*) the upper row is uPD78043GF and the lower ({_]) row is »PD78044GF.
*
- Q.
uPD78043GF
uPD78044GF
S o a
E
| . PD78044GF -
"45
~ "45 | pPD78044GF:
46 | uPD78043GF
uPD78044GF
pL
N
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Cc
«+
an] D = 10
"43
"44 | upp78043GF | O
"44
. Port
Pin No. u-Com No.
b
el
= @)
OUT
OT
UT
OUT
uPD78043GF | O
UT
OUT:
OUT
OUT:
IN
OUT
OUT
T
BE
o
@ Zz o
:
Cc
i:
OUT
OUT
OUT
OUT
|
iO)
con) A n
73
74
~ a
OUT
OUT
UT
OUT
OUT
OUT
OUT
e)
OUT
OUT
OUT
OUT
OUT
NI ao
79
~"
19
~ a
OUT
OUT
OUT
Oo UT GRID 5 FL Grid 5
Name Description
S.BUSY 8 bit system BUSY
YM7128(ST.) DSP IC Strobe for control
RES{RDS) RDS: Reset : SEE :
4053 P/D L TC4053 Control pin
CEK(RDS) RDS Clock :
4053 INH TC4053 Control pin
DATA(RDS) RDS Data :
DSP(LED) DSP LED Control H: LED ON L: LED OF
-START(RDS) RDS Start : :
STAND-BY (LED) STAND-BY LED Control H: LED OFF L:LED ON
DSP LOGIC(LED) OSP LOGIC LED Control H: LED OFF L: LED ON
D MUTE DATA MUTE
Vdd Microprocessor power supply
MUTE Selector MUTE control H: MUTE OFF L: MUTE ON
4/8 SELECTOR IN Speaker inpedance changeover =H: 4Q L: 8Q
KEY RETURN 3 Key return 3
SEGMENT 14
SEGMENT 9
SEGMENT 1
SEGMENT 2
SEGMENT 6 FL Segment 6
SEGMENT 7 FL Segment 7
GRID 3 FL Grid 3
GRID 4 FL Grid 4