Panasonic SA-BTT405P Service Manual page 27

Symptom -4
Remote Control does not work
Check the battery of
the Remote Control
OK
Check the Digital P.C.B.
connector XP9 voltage.*2
OK
Exchange the Exchange the
Front P.C.B.
CHECK POINT LOCATION
Exchange the
battery
NG
Exchange the
Digital P.C.B.
NG
*2
24
VOLTAGE DATA (measurement value)
REF.NO. PIN NO.
*2
27
XP9
1 3.3V
2 3.3V
3 1.7V
4
PIO9
5 PIO11
6 PIO13
7 GND
8 3.3V
9 GND
10 3.3V
11 0V
12 0V
13 3.3V
14 3.3V
15 3.3V
16 3.3V
17 3.3V
18 11.9V
19 GND
20 BT_L
21 GND
22 BT_R
23
GND
24 NFC_FD