Maintenance Manual
Table Of Contents
- INPUT AMPLIFIER NETWORK
- CRYSTAL FILTERS, IF AMPLIFIER
- INTEGRATED CIRCUIT AGC AMPLIFIER
- OSCILLATOR/MIXER/DETECTOR
- AUDIO AMPLIFIER
- SQUELCH
- FAULT DETECTORS
- VOLTAGE REGULATORS
- ADDRESS DECODER
- BUFFER AMPLIFIER U105
- RECOMMENDED TEST EQUIPMENT
- ALIGNMENT PROCEDURE
- CRYSTAL FILTER TUNING
- AUDIO AND DATA OUTPUT ADJUSTMENTS
- TROUBLESHOOTING
- ASSEMBLY DIAGRAM
- PARTS LIST
- IC DATA
- OUTLINE DIAGRAM
- SCHEMATIC DIAGRAM
PARTS LIST
18 MM101886V1 R1A
Symbol Part Number Description
- - - - CONNECTORS - - - -
J1 19A115938P24 BNC
J2 19B801587P7 96 PIN
- - - - INDUCTORS - - - -
L1
and
L2
REG704593/47 0.47µH: TDK
L3
and
L4
REG704594/68 6.8µH: TDK
L5
and
L6
VELQS33N1R5G04 1.5µH: MURATA
L7
and
L8
REG704594/68 6.8µH
L9 VELQS33N1R5G04 1.5µH: MURATA
L10 REG 704 14/31 3.3µF
L100 REG 704 14/37 10µH.
L101 REG 704 593/27 0.27µH: TDK
L102 19A703311P1 0.75µH: Toko
L103 REG 704 14/37 10µH
L201
and
L202
REG 704 14/37 10µH
- - - - TRANSISTORS - - - -
Q1,Q2 19A704708P2 NE85633: CEL (NEC)
Q3
and
Q4
19A700076P2 MMBT3904/SOT: ON SEMI
Q100
and
Q101
19A700076P2 MMBT3904/SOT: ON SEMI
Q201
thru
Q203
19A700076P2 MMBT3904/SOT: ON SEMI
- - - - RESISTORS - - - -
R1 344A3304P51R1 51.1 Ohms
R2 344A3304P1000 100 Ohms
R3 344A3304P1002 10k Ohms
R4 344A3304P3321 3.32k Ohms
R5 344A3304P8250 825 Ohms
R6 344A3304P9090 909 Ohms
R7 19B801251P5R6 5.62 Ohms