— 42 —
IC202
M64084AGP
IC201
MC3361CDR2
Mixer
Input
GND
Audio
Mute
Scan
Control
Squelch
Input
Filter
Output
Filter
Input
Demodulator
Audio
Crystal
Osc.
Mixer
Output
Limiter
Input
Decoupling
Quad
Input
Vcc
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
NC
Tx OUT
Tx Vcc
TxB
TxE
Tx GND
PD1
Vcc
Xin
Xout
XBo
GND
MIX REF
MIX IN
Rx Vcc
RxB
RxE
Rx GND
PD2
RST
SI
CPS
Lock
MIX OUT
VF
R
OP0
VF
R
ON0
GNDA0
VFxIN0
VFxIP0
GSx0
VCM0
V
DD
MCLK
GNDD
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VF
R
OP1
VF
R
ON1
GNDA1
VFxIN1
VFxIP1
GSx1
VCM1
FS
D
R
D
X
STROBE
SERIAL IN
CLOCK
Q1
Q2
Q3
Q4
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Vcc
OE
Q5
Q6
Q8
Q'S
QS
Q7
IC401
T7503-1EC
IC301/IC302
TC74HC4094AF
1
2
3
4
7
6
5
8
VO2
GND
Vcc
VO1
IC402
MC34119D
CD
FC2
FC1
Vin
Содержание FT-8908
Страница 1: ...SERVICE MANUAL PUBLISHED IN JAPAN Oct 1998 FILE NO 2B0 9806 FT 8908 CORDLESS TELEPHONE ...
Страница 10: ... 9 10 BLOCK DIAGRAMS Base Main ...
Страница 11: ... 11 Base RF ...
Страница 12: ... 12 Handset Main ...
Страница 13: ... 13 Handset RF ...
Страница 14: ... 14 15 SCHEMATIC DIAGRAMS Base Main ...
Страница 15: ... 16 17 Base RF ...
Страница 16: ... 18 19 Base Key ...
Страница 17: ... 20 21 Base DSP ...
Страница 18: ... 22 23 Handset Main ...
Страница 19: ... 24 25 Handset RF ...
Страница 40: ... 46 ELECTRICAL PARTS LOCATION Base Main ...
Страница 41: ... 47 Base RF ...
Страница 42: ... 48 Base Key ...
Страница 43: ... 49 Base DSP ...
Страница 44: ... 50 Handset Main ...
Страница 45: ... 51 Handset RF ...
Страница 46: ... 52 WIRING DIAGRAMS Base ...
Страница 47: ... 53 Handset W501 W 072147 J502 JK 736 9P J601 IC603 PORTABLE RF B501 PE1294DA TOP VIEW SOLDERING ...