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6-2-lla OUTPUT AMPLIFIER (49) (S/N 3225 ON)
A. Remo v a 1 ( Fi g u re 6-2 )
1. Remove Battery (47) {paragraph 6-2-2}, if installed.
2. Disconnect four semi-rigid coax connectors from Output Amplifier
(49).
3. Disconnect J5106 on Output Amplifier {49) from P5106.
4. Remove two screws (2) and lock washers {1) attaching Output
Amplifier (49) to Rear Panel (48).
5. Slide Output Amplifier {49) into battery well and lift from
chassis (33).
Before reinstalling Output Amplifier {49). apply
a thin coat of Thermal Joint Compound (Wakefield
Engineering. Inc., Type 120 or equivalent) to
surface of enclosure block which contacts Rear
Pan el.
B. Disassembly (Figure 6-4a)
1. Remove twenty screws (2) attaching cover (1) to enclosure block
{ 13) .
2. Remove twenty-one screws (7) attaching cover (6) to enclosure
block (13).
3. Unsolder leads from two coax connectors (5101 and 5103) and
three feed-thru filters (L5110, L5109 and L5108) at PC board
( 8). Remove connectors and filters.
4. Unsolder lead between E5108 and Relay K5101.
5. Unsolder grounding strap between PC board (8) and enclosure
block (13).
6. Remove seven screws (9) attaching PC board (8) to enclosure
block and remove PC board.
6-llb
03
Summary of Contents for FM/AM-500
Page 152: ...DETAIL A 11 Figure 6 6 Dual vco 6 14 01 Assembl Y ...
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