Motorola Astro XTL 1500 User Manual

7-40 Schematics, Component Location Diagrams, and Parts Lists: HUD4022A (VHF) Main Board
June 15, 2005 6815854H01-A
Figure 7-32. HUD4022A Receiver Front-End Schematic (Sheet 2 of 2)
5V
9.3V
AGC/Attenuator circuit
NP
NP
TO SHEET 1
1.n
5V
5V
5V
C3936
D3256
C3289
100.n
C3288
470.p
10.K
R3265
10.K
R3266
D3254
D3253
IF6786
D3252
C3267
100.n
9.3V_FE
9.3V_FE
100.n
C3312
1.n
C3284
13.p
C3259
B(,1),A(,1)
62.00p
C3300
72.22n
L3273
72.22n
L3272
B(,1),A(,1)
C3299
B(,1),A(,1)
B(,1),A(,1)
62.00p
C3257
39.000p
C3264
39.000p
B(,1),A(,1)
9.1p
C3281
C3280
1.n
C3276
13.p
L3260
38.13n
B(,1),A(,1)
1.n
C3294
B(,1),A(,1)
C3266
1.n
L3269
1.2u
470.p
C3270
1.2u
390.
R3275
B(,1),A(,1)
L3270
1.n
B(,1),A(,1)
B(,1),A(,1)
1.n
C3273
C3260
C3261
1.n
R3269
3.6K
56.K
R3281
3.3K
R3280
7.5K
R3279
RF_ATTN_2_A
56.K
R3278
R3277
3.3K
Q3258
B(,1),A(,1)
Q3257
B(,1),A(,1)
Q3256
B(,1),A(,1)
L3268
B(,1),A(,1)
B(,1),A(,0)0
1.2u
1.2u
B(,1),A(,1)
L3266
R3273
3.9K
470.p
C3256
1.2u
B(,1),A(,1)
L3261
R3274
390.
1.n
C3255
B(,1),A(,1)
B(,1),A(,1)
D3251
C3263
1.n
C3262
470.p
62.
R3255
Q3254
C3303
Q3255
1.n
B(,1),A(,1)
10.n
C3265
470.p
C3302
270.0n
L3275
C3301
470.p
R3271
75.
51.
B(,1),A(,1)
C3309
B(,1),A(,1)
R3260
10.n
470.p
C3305
10.n
C3304
R3258
62.
B(,1),A(,1)
B(,1),A(,1)
B(,1),A(,0)0
B(,1),A(,0)0
R3257
620.
B(,1),A(,1)
4.7K
R3259
1.0u
L3276
470.p
C3306
10.n
C3307
R3254
B(,1),A(,1)
10.0n
2.2K
33.
B(,1),A(,1)
L3277
B(,1),A(,1)
R3272
B(,1),A(,1)
10.n
C3308
1.K
R3256
B(,1),A(,1)
IF6258
10K
R3253
5V
C3272
470.p
RFIO1
1
RFIO2
3
B(,1),A(,1)
V1
4
RF_ATTN_1_A
V2
5
B(,1),A(,1)
Q3250
5V
U3250
AT267
GND
2
B(,1),A(,1)
D3255
IF6251
9.3V_FROM_FGU
9.3V_TO_IF
IF6253
IF6257
B(,1),A(,1)
B(,1),A(,1)
RF_IN
5V_FE
470.p
C3282
47K
47K

Motorola Astro XTL 1500 Specifications

General

Brand	Motorola
Model	Astro XTL 1500
Category	Radio
Language	English