32
SEMICONDUCTOR LEAD IDENTIFICATION
Base Unit
D1/D2/D5/D6/D7/D8/D10
/D12/D13/D14/D15/D16/D18
/D19/D21/D30/D32/D34/D36: 1N4148
D4 : HZ7C3
D11 : HZ33CP
D17 : HZ4B1
D22 : HZ7A1
D33 : HZ4C3
Anode
Cathode
Q1 : 2SC2714
Q2/Q3/Q6/Q7/Q8/Q10
/Q11/Q19/Q21/Q22/Q23
/Q24/Q201/Q202 : 2SC1623
Q4/Q5/Q12/Q15/Q16/Q17 : 2SA812(M)
Q9/Q13/Q18/Q20 : 2SD471
B : Base
E : Emitter
C : Collector
B
E
C
B
E
C
IC1/IC5
PC817CD
1
2
3
4
IC3
LA8633VU
IC2
MC3361CDR2
PRE. IN
24
PRE. NF
23
CMP. NF
22
CMP. VREC
21
CMP. OUT
20
LPF2 IN
19
LPF2 OUT
18
CMP. MUTE CONT
17
EXP. MUTE CONT
16
TX. DATA IN
15
VREF
14
VCC
13
1
LPF1 IN
2
LPF1 OUT
3
EXP. IN
4
EXT. VREC
5
INT. OUT
6
TEL. OUT
7
V. HOLD
8
INTC. CONT
9
CHARGE CONT
10
FSK OUT
11
GND
12
ST. BY
Mixer Input
16
Ground
15
Audio Mute
14
Scan Control
13
Squelch Input
12
Filter Output
11
Filter Input
10
Demodulator Output
9
1
Crystal Osc
2
3
Mixer Output
4
Vcc
5
Limiter Input
6
Decoupling
7
8
Ouad Coil
D3/D35/D37/D207/D209
/D213/D217/D218 : RLS4148
D20/D214 : HZK6C
Anode
Cathode
Anode
Cathode
D203 : NNCD6.2F
D201/D208 : SML-310LT
D202/D206 : SML-310MT
Anode
Cathode
Cathode
D2
D205 :LTD-482P
Cathode C1
Cathode E1
Cathode D1
Anode 1
Anode 2
Cathode D2
Cathode E2
Cathode C2
1
2
3
4
5
6
7
8
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
Q14 : 2SC2120
C
E
B
IC4 :M5223FP
OUTPUT1 1
NEGATIVE1 2
POSITIVE1 3
GND 4
8 V+
7 OUTPUT2
6 NEGATIVE2
5 POSITIVE2
1
2
+
-
+
-
D38 : RB420D
Cathode
(open)
Anode
IC7
LC7366NM
TONE OUT
20
CD
19
18
R1
17
R2
16
R3
15
R4
14
13
MUTE
12
C4
11
1
V
DD
2
XMIT
3
4
C1
5
C2
6
C3
7
V
SS
8
9
OSCI
10
OSCO
Summary of Contents for FT-8989
Page 2: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 9905 FT 8989 PUBLISHED IN JAPAN Sep 1999 ...
Page 11: ...9 BLOCK DIAGRAMS Base Unit Main ...
Page 12: ...10 Base Unit DSP ...
Page 13: ...11 Handset ...
Page 14: ...12 13 SCHEMATIC DIAGRAMS Base Unit Main ...
Page 15: ...14 15 Base Unit Key ...
Page 16: ...16 17 Handset ...
Page 34: ...35 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 35: ...36 Base Unit Key PCB ...
Page 36: ...37 Handset Main PCB ...
Page 37: ...38 39 WIRING DIAGRAMS Base Unit ...
Page 38: ...40 Handset ...
Page 66: ......