Panasonic SL-SV550GT, Service Manual

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Pin
No.
Terminal
Name
I/O Function
12 INT O Serial communication starting
signal output
13 TSENSE I Serial communication data
signal input/EEPROM data
signal input/output
14 ECS O EEPROM communication select
signal
15 TDATA O Serial communication data
signal output
16 TCLK I Serial communication clock
signal input
17 MLD O Serial command latch output
18 MCLK O Serial command clock output
19 MDATA O Serial command data output
20 STAT I Status signal input
21 BLKCK I Sub-code block clock signal
input
22 WLSRCN - Not used, open
23 NC - Not used, open
24 TYPESEL -
Not used, connected to V
CC
25 /RESET I Reset detect signal input
26 EXT-IN - Not used, open
27 EXT-
OUT
-
28 XOSCIN I System clock signal
29 XOSC /
OUT
O
30
V
SS
- GND
31 REST I Rest detect switch signal input
32 A.SHOCK - Not used, open
33 HOLD - Not used, open
34MACASEL - Not used, open
35
CHG I DC IN (Battery) detect signal
input
36 NC - Not used, open
37 POWER O Power supply detect signal
output
38 MUTE O Headphone amp muting signal
output
39 ZAN - Not used, open
40 NC - Not used, open
41 NC - Not used, connected to GUP
terminal
42
GUP
O Voice gain up output
25