Figure 7-27. Hud4022A/Hud4025B Receiver If Schematic - Motorola ASTRO Digital XTL 5000 Detailed Service Manual

Schematics, Component Location Diagrams, and Parts Lists: HUD4022A/HUD4025B (VHF) Main Board
RF_ATTN_2_C
IF6359 IF6362
RF_ATTN_3_C IF6360 IF6363
5V_IF
IF6357 IF6350
9.3V_TO_CONTR IF6353 IF6354
Y3400
TS2_A9E02
FREQ
IF_IN IF6351
B(,1),A(,1) 6
IN
C3414
36.p
6881096C74-B
RF_ATTN_2_B
RF_ATTN_3_B
5V_TO_FE
9.3V_FROM_FE
C3400
470.p
B(,1),A(,1)
R3400
C3405 C3412
620.
10.n 470.p
B(,1),A(,1)
B(,1),A(,1)
Q3400
C3406 R3401
10.n 4.7K
3 B(,1),A(,1) B(,1),A(,1) B(,1),A(,1) B(,1),A(,1)
OUT
C3409
C3417 C3424
36.p
4.3p
10.n
L3401
NP
D3401
330n
Millennium VHF Rx IF
L3400
270.0n
R3409
75.
B(,1),A(,1)
B(,1),A(,1)
L3406 C3403 C3411
1.0u 10.n 470.p
R3402 C3402 C3410
3.3K 10.n 470.p
B(,1),A(,1) B(,1),A(,1)
B(,1),A(,1)
R3405 R3407
C3401 C3404
1.5K 10.
10.n
10.n
R3413
100.
Q3401
Y3401
TS2_A9E02
FREQ
B(,1),A(,1) 0 B(,1),A(,0) B(,1),A(,1) B(,1),A(,1)
6 3
IN OUT
C3416 C3420
4.3p 1.n
L3408
L3403
68.000n
330n
D3400

Figure 7-27. HUD4022A/HUD4025B Receiver IF Schematic

7-29
C3415
IF_TO_ABACUS
4.7p
IF6352
B(,1),A(,1)
IF_OUT
C3418
1.n
L3405
C3408
330n
13.p
NP
B(,1),A(,1)
L3407
150.n
NP
73D02970C73-O
SHEET 15 OF 23
May 25, 2005