Toshiba FT-8901A, Service Manual

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Unit [V] Unit [V]
Ref.
No.
Pin STBY TALK Note Note
Ref.
No.
Pin STBY TALK Note Note
46 0.0 AGND 0.0 AGND
47 1.5 1.5
48 1.5 1.5
49 1.5 Vref 1.5 Vref
50 0.0 PLLGND 0.0 PLLGND
51 3.7 PLLVcc 3.7 PLLVcc
52 3.7 PLLVcc 3.7 PLLVcc
53 1.1-0.0 X'TAL 1.1-0.0 X'TAL
54 1.4-0.0 X'TAL 1.4-0.0 X'TAL
55 0.0 DGND 0.0 DGND
56 3.7 RESET 3.7 RESET
57 3.7 PDN 3.7 PDN
58 3.7 3.7
59 0.0 0.0
60 0.0 0.0
61 0.0 0.0
62 0.0 0.0
63 3.7 3.7
64 3.5-0.0 DATA_IN 3.5-0.0 DATA_IN
65 0.0 RX_MUTE 3.7 RX_MUTE
66 0.0 TX_MUTE 3.7 TX_MUTE
67 0.0 0.0
68 3.2-0.0 PLLENB 3.2 PLLENB
69 3.2-0.0 PLLDAT 0.0 PLLDAT
70 3.2-0.0 PLLCLK 0.0 PLLCLK
IC6 71 3.3 TX_CONT 0.1 TX_CONT
72 0.0 3.6
73 3.5-0.0 WD_OUT 3.5-0.0 WD_OUT
74 0.0 DGND 0.0 DGND
75 3.7 DVcc 3.7 DVcc
76 3.7 3.7
77 0.0 0.0
78 0.0 0.0
79 3.7 BELL_IN 3.7 BELL_IN
80 0.0 TALK 3.5 TALK
81 3.7 3.7
82 0.0 0.0
83 0.0 0.0
84 0.0 0.0
85 0.0 0.0
86 0.0 0.0
87 0.0 0.0
88 0.0 0.0
89 0.0 0.0
90 0.0 0.0
91 0.0 0.0
92 0.0 DGND 0.0 DGND
93 3.7 DVcc 3.7 DVcc
94 3.7 3.7
95 3.7 3.7
96 3.5 CHG_OUT 0.0 CHG_OUT
97 3.7 3.7
IC6
98 3.7 3.7
99 0.6 ANS LED(ANS on) 0.6 ANS LED(ANS on)
100 3.5 CHARGE LED 3.5 CHARGE LED
1 0.0 0.0
IC7
2 0.0 0.0
3 0.0 GND 0.0 GND
4 0.6 0.6
1 5.6 5.6
2 0.0 GND 0.0 GND
IC8
3 1.2 1.2
4 3.7 3.7
5 0.0 GND 0.0 GND
6 5.6 5.6
1 3.7 3.7
2 5.6 5.6
IC9 3 0.0 GND 0.0 GND
4 5.6 5.6
5 3.7 3.7
1 0.0 GND 0.0 GND
2 0.0 1.7
3 0.0 2.7
4 0.0 1.6
5 0.0 0.9
6 0.0 GND 0.0 GND
7 0.0 Tx Vcont 1.8 Tx Vcont
8 2.9 Vcc 2.9 Vcc
9 2.9-2.4 Ref OSC 2.9-2.4 Ref OSC
10 2.2-1.6 OPEN 2.2-1.6 OPEN
11 2.1-1.6 OPEN 2.1-1.6 OPEN
IC601
12 0.0 GND 0.0 GND
13 2.9 2.9
14 0.0 0.0
15 2.9-0.0 DATA(PULSE) 0.0 DATA(PULSE)
16 2.9-0.0 DATA(PULSE) 0.0 DATA(PULSE)
17 2.9-0.0 DATA(PULSE) 2.9 DATA(PULSE)
18 1.6 Rx Vcont 1.7 Rx Vcont
19 0.0 GND 0.0 GND
20 1.2 1.2
21 1.7 OPEN 1.7 OPEN
22 2.9 Vcc 2.9 Vcc
23 0.0 GND 0.0 GND
24 1.7 1.7
1 1.4 1.5
2 1.4 1.5
3 1.8-1.2 1.5
IC602
4 0.8 0.6
5 1.5 1.5
6 1.5 1.5
7 1.5 1.5
8 2.9 3.0