Pioneer KEH-M5500 UC Service Manual page 19

Multi-cd control fm/am tuner deck amplifier
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*GGF9004 (SC17010GF-536)
IC's marked by * are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
@ Pin Functions (GGF9004)
a
Format
| 2 |DPWCNT
| output|
C | EJECT/REPLACE contro! output ("L":REPLACE)
input/ ed Reception enable
i y
Race
as
output
Function
output
pe yree |Eeme|
| Serial clock input / output
output
[output | C
BSCK
[BSO | output | C | Serial data output
a
|
7 [BSI
_[ input | C | Serial data input
8
Mechanism mute request
9
Tape loading input
10
Tape direction
INTL
Key input (Down Edge: interruption)
Acc sense input
Back up sense input
SK signal input
DK signa! input
17_|
DSENS
18 | TUN PH
| 20 [BS HUT | output] N | Bus mute output
[21 [PRE
| output | C | Not used
22 | DMUTE
Deck mute output
23__|
THUTE
Not_used
SYS PW
System power output
Mute
FA IF IN
D
AM IF IN
Signal level input
Stereo input
30_jvp
of

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Keh-m580 usKeh-m4500 usKeh-m4500 x1hKeh-m5550 es

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