Toshiba FT-8989, Service Manual

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30
Handset
Unit[V] Unit[V]
1 0-2.8 1.9
2 0-2.8 1.9
3 -0.2-2.6 1.6
4 0.4-0.8 0.6
5 0.4-1.5 1.5
6 0.4-1.5 1.5
7 0-2.0 1.9
8 0-3.0 0
9 0 0 GND
10 0-3.0 0-3.0 PULSE
11 0 0 GND
IC601 12 0-1.5 1.5
13 0-3.0 3.0
14 0-1.5 1.5
15 0-1.5 1.5
16 0 3.0 RXMUTE
17 0 3.0 TXMUTE
18 0-1.5 1.5
19 0-15. 1.5
20 0-1.5 1.5
21 1.0-4.0 0.7
22 1.6 1.5
23 1.6 1.5
24 1.6 1.5
1 0-2.9 2.9
2 0 0 GND
IC602 3 0-1.2 1.2
4 0-3.0 3.0
5 3.8 3.8
1 3.0 3.0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
IC603 8 3.0 0 CONV
9 0 0
10 0-3.0 0/3 SP-VOL
11 3.0 3.0 VCC
12 0 0
13 0 0 GND
14 3.2 3.2 BATSAVE
15 3.2 3.2
16 0 0
17 1.4-3.0 3.0 W/U
18 0 0 GND
19 3.0 3.0 RST
20 0 0 GND
21 0 0 GND
22 0.3-1.9 0.3-1.9 SINE WAVE
23 0-3.0 0-3.0 SINE WAVE
24 0 0 GND
25 0 0
26 0 2.9 LCD-
27 0 2.9/0 SP-VOL2
28 0 2.9 MIC-ON
29 0 2.9 LCDRS
30 0 2.9 RESET
31 0 2.9 LCDV
32 0 0
33 2.9 2.9
34 0 0
35 2.9 2.9
36 0 0
IC603 37 0 0
38 3.2 3.2 BATLOW
39 0 0
40 0 0
41 0-2.9 0 SQ-IN
42 0-2.9 2.9 SC
43 0 0/2.9 RINGVOL
44 0-2.5 0 TXB
45 0 0
46 0-2.9 0
47 0-2.9 0
48 0-2.9 2.9
49 0 0 GND
50 0 2.9 TXMUTE
51 2.9 2.9 LCDSCL
52 0 0-2.9 PULSE
53 0 0
54 0 2.9
55 0-2.9 0-2.9 PULSE
56 3.0 3.0
57 0 0-2.9 PULSE
58 0 0
59 0 0
Ref. No. PIN STBY TALK NOTE Ref. No. PIN STBY TALK NOTE