Service Manual Part 2
September 2001
Part No. 001-5100-001
8-5
CAPx
CAP
VPP
COL
EMIT
BASE
1 OUT
LGND
LVCC
46
47
48
49
50
51
1
2
3
DOUTx
DOUT
SB1
FLAG
ODC
VDDH
DGND
VDD
VSSR
OVCC
OGND
OB
OTBY
OT
SSL
SUB
REF 1
4
5
6
52
7
8
9
10
11
12
13
14
15
16
17
18
19
T2
T2x
T2c
T1
T1x
T1c
T1c2
45
44
43
42
41
40
39
MO
38
37
36
35
MOx
IF IN
GND1
IF IN 2
VCCP2
BYP1
BYP2
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
VCC
GND
DAF2
NLS
DAF
DAFS
IF1
VCCP
LOx
LO
GND0
ABACUS 11
U401
C421
.01uF
R414
2k
+
C438
0.1uF
C419
0.1uF
R412
33
Q1
C423
56pF
R418
1.5k
C424
56pF
R420
47k
C422
39pF
R419
47k
L402
180nH
C420
20pF
VR401
R416
20k
C426
0.22uF
R413
270
+
C428
2.2uF
AUX2
AUX1
VCP
38
37
36
35
34
33
32
31
1ADAPT
ADAPTSW
GND6
1OUT
GND5
MODOUT
CPB1AS1
CPB1AS2
30
29
28
S
U
P
F
C
A
P
S
U
P
F
B
A
S
E
S
U
P
F
O
U
T
S
U
P
F
IN
P
R
E
IN
G
N
D
4
D
C
5
V
2
P
V
R
E
F
D
C
5
V
3
T
E
S
T
1
T
E
S
T
2
GND3
XTAL2
XTAL1
GND2
A/D BYPASS
DC5V1
16
15
14
13
12
11
10
9
8
7
6
VMULT4
VMULT3
VMULT2
VMULT1
FREFOUT
M
O
D
IN
C
E
X
C
L
K
D
A
T
A
G
N
D
1
G
N
D
7
G
N
D
6
D
C
5
V
4
L
O
C
K
A
U
X
4
A
U
X
3
17 18 19 20 21 22 23 24 25 26 27
54321444342414039
TP302
R315
39k
R309
51k
+
C319
10uF
C320
33pF
+
C310
10uF
C309
.022uF
C372
0.1uF
C312
0.1uF
3
12
45
11 10 9
8
7
IN OUT
U201
6
13
1
2
C110
3.3pF
L104
RF INPUT
L201
17nH
L202
24nH
RF IN
1
8
RF
BYPASS
GND
GND
B+
RF
BYPASS
GND RF OUT
U202
RF AMPLIFIER
4
5
2
3
L203
180nH
R202
10
+
C201
10uF
C202
39pF
C203
100pF
76
C204
.022uF
L204
24nH
C222
6.2pF
3
12
45
11 10 9
8
7
IN OUT
U203
6
13
1
2
C223
5.1pF
MBP
GND
BDlv
13
14
12
11
RF
G
N
D
RF
MG2
GND
IFn
IFp
MVdd
3
4
5
6
211615
GND
L
O
IN
BBP
G
N
D
10987
2
1
34
5
C218
.022uF
54
T202
12
3
C227
330pF
R204
100
+
C210
10uF
C211
.022uF
C212
39pF
C611
10pF
L605
750nH
C614
5.6pF
T201
Q503
REG 5V
1
2
5
4
3
RX D/A
TX D/A
R/T
REF D/A
GND
8
7
6
5
4
5
V
A
N
T
E
N
B
IA
S
E
N
N
/C
G
N
D
R
E
S
E
T
3
2
1
21
20 19
DAT
CLK
C.E.
SC4
SC3
U503
D/A IC
S
W
1
S
W
-C
S
W
2
S
C
1
S
C
2
9 10111213
18
17
16
15
14
INTCAP
C BIAS
V CON
INTCAP OUT
REF V
THERM
R
F
D
E
T
G
N
D
1
A
N
O
D
E
1
C
A
T
H
1
T
X
1
1
ANODE2
BIAS RT
RX 1
TX 12
CATH2
B+2
U504
TX ALC IC
T
X
5
V
R
X
5
V
B
IA
S
E
N
B
IA
S
9 101112
8
7
6
5
4
318
17
16
15
14
13
C524
33pF
19
20
211
2
C517
33pF
C519
33pF
R514
10k
RT501
50k
R511
2k
+
C513
4.7uF
C523
33pF
C518
.022uF
C504
33pF
CR502
N/C
R501
10k
Q502
Q501
CR501
16
R508
6.8k
C503
33pF
R505
15k
R503
10k
C525
33pF
10 9
2
8
354
7
U501
COUPLER
7
6
5432
1
U502
RF PA
RF OUT
B
+
RF IN
B
IA
S
B
IA
S
S
T
A
B
E
4
V
/C
O
N
S
T
A
B
E
3
V
/C
O
N
C510
.022uF
C509
33pF
C522
0.1uF
C505
33uF
+
C18
1.0uF
E1
C512
.022uF
1
2
J2
L106
180nH
C114
33pF
C101
20pF
L108
180nH
L105
C106
2.4pF
L103
180nH
L102
15nH
C108
33pF
L101
180nH
C105
33pF
C103
33pF
C213
.022uF
C209
.022uF
C226
39pF
C221
.022uF
C208
39pF
+
C216
10uF
C104
20pF
C527
.022uF
CR102
CR104
C514
.022uF
C206
33pF
C207
3pF
R101
51k
C521
.022uF
+
C520
10uF
C507
33pF
C506
33pF
R507
3.3k
C511
33pF
R508
1k
34
52
6
1
CR301
C301
0.1uF
C302
0.1uF
C350
0.1uF
C303
100pF
C313
0.1uF
C305
100pF
C370
4.3pF
R310
1k
C308
0.22uF
C328
100pF
C340
0.1uF
+
C307
4.7uF
C314
.022uF
N/C
N/C
C EXT
DET
DE
F OUT
V REG
V OPT
VDD
5
6
7
8
9
10
11
12
13
V
D
D
N
/C
N
/C
N
/
C
N
/C
N
/C
N
/C
25
24
23
22
21
28
27
26
29
N
/C
N
/C
N
/C
N
/C
N
/C
N
/C
N
/
C
N/C
N/C
N/C
VSSD/VSSA
S1
SS
CE
SCK
SO
4321323130
14 191715 16 18 20
U304
18.8MHz
REF OSC
C353
.022uF
C354
33pF
R306
4.7k
C352
33pF
C351
.047uF
SENSE +5
SHDN
GND
B+ IN
FDBK
E
R
R
O
R
5
V
T
A
P
U305
5V REG
3
4
8
7
21
56
C347
.022uF
R304
51k
C345
0.1uF
C344
.022uF
+
C348
10uF
C349
.022uF
C322
0.1uF
C317
0.1uF
C318
0.1uF
C329
0.1uF
C330
0.1uF
RF IN
SW2
GND
GND
T
R
B
F
L
IP
GNDSW1
TX OUT
Vcc
RX OUT
GND
U303
VCO BUFFER
RXBB
N
/C
P
R
E
TXBB
3
2
1
4
8765
9
10
11
12
13 14 15 16
R311
15k
C323
.022uF
GND
V CON
B+
S
W
1
S
W
2
O
U
T
2
1
9
V
C
O
N
GND
GND
U307
VCO
MODULE
5
6
34
87
C373
.022uF
C304
33pF
C306
33pF
C373
.022uF
C315
1000pF
R307
1k
C324
.047uF
R314
51
R305
2k
C316
.022uF
C325
680pF
L302
10uH
C311
33pF
L301
15nH
C341
.022uF
C377
3pF
C339
12pF
C342
4.7pF
C408
.001uF
C425
2.2pF
R421
2.4k
C407
.01uF
C613
0.1uF
C406
.01uF
C403
.047uF
C404
0.1uF
+
C405
3.3uF
C401
.033uF
R402
270k
C409
680pF
R403
27
R404
10k
L401
3.9uH
C410
75pF
R406
6.8k
C413
.01uF
VR402
C414
.0088uF
+
C417
3.3uF
+
C418
3.3uF
+
C430
10uF
R417
10
R407
47
C416
.01uF
C441
10000pF
C429
0.1uF
C415
0.1uF
C431
33pF
R411
68
1
3
2
1
3
2
C432
33pF
R410
68
L603
1100nH
FL402
450k
FL401
450k
R405
33
C605
3.6pF
C606
7.5pF
R401
5.1
C433
0.1uF
+
C450
10uF
L602
1500nH
L601
910nH
C604
4.3pF
C612
3pF
Q601
R605
3.3k
C602
0.1uF
R603
33k
FL2
73.35MHz
R602
2k
R601
100
C601
0.1uF
L600
910nH
FL1
73.35MHz
C609
3.3pF
C610
7.5pF
R604
12k
1
3
2
2
TP401
DOUT*
DOUT
SB1
DOC
RESET
1
2
TP400
4
8
6
18
16
12
5
3
7
DA CE
R327
0
CLOCK
10
C5
33pF
R326
0
R328
0
+
C1
4.7uF
C2
.022uF
DATA
9
11
REF OSC EN
17
SW B+
SYN CE
14
15
MOD IN
13
LOCK DET
20
19
RAW B+
RAW B+
J1
(P1)
GND
J3
IS B+
RAW B+ IN
2
3
1
C14
33pF
+
C20
4.7uF
F001
2A
E3
E4
E2
VR1
C17
.022uF
C15
.022uF
R509
1k
5V (RX)
0V (TX)
5V dc
0V (RX)
5V (TX)
6.0V (TX)
0V (RX)
5V (TX)
6
.6
V
(
T
X
)
7
.6
V
(
R
X
)
.37V (TX)
7.5V (RX)
0V (RX)
5V (TX)
7.4V (RX)
4.2V (TX)
5V dc 5V dc
5V dc
.43.43
2.5V dc2.5V dc
13V
3 - 11V dc
2.8V dc
4.6V 1.8V dc
5V
5V (TX)
0V (RX)
5V dc
.55 - .77V
7.5V dc
16.8MHz
4.7V dc
0V 4.7V
4.7V
4.7V
2
.4
V
(
R
X
)
4
.8
V
(T
X
)
2.8V dc
2V dc
2.4 MHz
14.4MHz
.8V dc
3V dc
4.9V dc
4.9V dc
4.9V dc
2.1 MHz
STRIPLINE
STRIPLINE
C434
10nF
C427
4.7nF
800 MHZ RF BOARD SCHEMATIC
NOTE: Individual replacement parts are not available for the
RF board, so the entire board must be replaced if it is defective.