Panasonic SA-AK44 Service Manual page 43

Pin No. Mark I/O
17 D4- O
18 D4+ O
19 NC -
20 PGND2 -
21 PVCC2 I
22 NC -
23 VCC I
24 VREF I
25 IN4 I
26 IN3 I
27 RSTIN I
28 NC -
14.4. IC600 (M38B79MFA158) Microprocessor
Pin No.
Mark
1 DECK2
2 KEY3
3 KEY2
4 KEY1
5 V_JOG_AD I
6 J_JOG_AD I
7 CHG_AD1 I
8 CHG_AD2 I
9 /CDRST
10 STATUS
11 SPE
12 ST/DO /
SQCK
13 SD
Function
Motor driver (4) reverse-
action output
Motor driver (4) forward-
action output
N.C.
Ground connection (2) for
driver
Power supply (2) for
driver
N.C.
Power supply terminal
Reference voltage input
Motor driver (4) input
Motor driver (3) input
Reset terminal
N.C.
I/O Function
I Tape mecha
condition input (Half2/
Reci_F/Mode /Reci_R)
I Key 3 input
I Key 2 input
I Key 1 input
Volume jog A-D
detection input
EQ Joy jog A-D
detection input
(Open Clamp) Chngr
sw A-D detection
input 1
(Position/ bottom)
Chngr sw A-D
detection input 2
O CD reset output
I CD signal processor
status input (INV)
I Speana input
I/O Tuner if data/stereo
input and CD
subcode clock output
I/O Tuner signal detect
input