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STEP
DIRECTIONS
8. Test the +5 V regulator
circuit on Power Supply PC
Board. Repair or replace
as required. Refer to
Power Supply paragraph in
Section 7.
9. Test the -12 V regulator
circuit on Power Supply PC
Board. Repair or replace
as required. Refer to
Power Supply paragraph in
Section 7.
10. Measure voltage across
E5215/E5217 and E5219/
E5217.
11. Test the +12 V regulator
circuit on Power Supply
PC Board. Repair or
replace as required. Refer
to Power Supply paragraph
in Section 7.
12. Measure voltage across
E5210/E5211.
13. Test +40 V rectifier cir
cuit on Power Supply PC
Board. Repair or replace
as required. Refer to
Power Supply paragraph in
Section 7.
14. Measure voltage across
Transformer black and white
leads and across the brown
and yellow leads.
15. Replace Transformer.
to Rear Panel Removal
Disassembly paragraph
Section 6.
Refer
and
in
DECISION
Is each voltage approxi
mately 15 VAC?
Is voltage 43 VAC (±5 V)?
Is each voltage approxi
mately 115 VAC?
5-6
YES NO
17
17
11 12
17
13 14
17
15 16
17
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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