— 26 —
SEMICONDUCTOR LEAD IDENTIFICATION
Anode
Cathode
2SC2714
2SC5345
2SC1623
2SC2712
2SA812(M)
2SD471
B : Base
E : Emitter
C : Collector
B
E
C
B
E
C
IC603
IC1
LA8634VU
IC601
IC3
MC3361CDR2
IC5
LTV-817
IC2
PRE. I
N
24
PRE. NF
23
CMP. N
F
22
CMP. VREC
21
CMP. OUT
20
LPF2 IN
19
LPF2 OU
T
18
CMP. MUTE
CONT
17
EXP. MUTE CONT
16
TX. DATA IN
15
VREF
14
VCC
13
1
LPF1 IN
2
LPF1 OU
T
3
EXP. IN
4
EXT. VRE
C
5
INT. OUT
6
TEL. OUT
7
V. HOLD
8
INTC. CONT
9
CHARGE CONT
10
FSK OUT
11
GN
D
12
ST. BY
Mixer Input
16
Ground
15
Audio Mute
14
Scan Control
13
Squelch Input
12
Filter Output
11
Filter Input
10
Demodulat
or Output
9
1
Crystal Osc
2
3
Mixer Output
4
Vcc
5
Limiter Input
6
Decoupling
7
8
Quad Co
il
RLS4148
HZK6C
Anode
Cathode
Anode
Cathode
SML-310LT
SML-310MT
D2
ELD406
Cathode C1
Cathode E1
Cathode D1
Anode 1
Anode 2
Cathode D2
Cathode E2
Cathode C2
16 15 14 13 12 11 10 9
Cathode G1
Cathode A1
Cathode F1
Cathode B1
Cathode B2
Cathode F2
Cathode A2
Cathode G2
DIGIT 1 DIGIT 2
F2
A2
B2
E2
G2
C2
D1
F1
A1
B1
E1
G1
C1
2SC2120
C
E
B
1
4
RB420D
Cathode
(Open)
Anode
1N4148
HZ33-2
HZ33CP
HZ4B1
HZ6B2
HZ6C3
HZ11A
2
3
DIODES
TRANSISTOR
IC's
1
2
3
4
5
6
7
8
Summary of Contents for FT-8901
Page 1: ...SERVICE MANUAL PUBLISHED IN JAPAN Apr 2001 FILE NO 2B0 200102 FT 8901 CORDLESS TELEPHONE ...
Page 9: ...BLOCK DIAGRAMS Base Unit 8 ...
Page 10: ... 9 Handset ...
Page 12: ...Handset 12 13 FT8901 Sche p65 01 05 01 12 12 Page 9 Adobe PageMaker 6 5J Win ...
Page 27: ... 28 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 28: ... 29 Handset Main PCB ...
Page 29: ... 30 WIRING DIAGRAMS Base Unit ...
Page 30: ... 31 Handset ...