TM 11-5821-333-30
2-24. TROUBLESHOOTING FLOWCHARTS. Continued
CHART 35
Sidetone Enable Test Failure
USE LOGIC PROBE AT
XA4-2.
1. SET UP USING FIG 2-8.
2. SET TEST ADAPTER:
S2
OFF
3. USE LOGIC PROBE AT
XA4-53.
NOTE
See figure FO-10 for
location of test points.
INTERFACE MODULE (A4)
IS BAD.
INTERFACE MODULE (A4)
IS BAD.
USE LOGIC PROBE AT
XA5-23.
1. SET TEST ADAPTER:
TEST EQPT
INPUT
EXT
TEST EQUIPMENT
SELECTOR
DMM
2. USE X1 PROBE AT
XA4-29 AND XA4-32.
READ DMM.
SWITCHING MODULE (A5)
IS BAD.
AMPL-OSC (A9) IS BAD.
FRONT PANEL (A1) IS BAD.
2-143
