Left Front Input No Activity

Test 1 - 2:

Test 3 - 4:

SYMPTOM
LEFT FRONT INPUT NO ACTIVITY

WHEN MONITORED
When the DRB III (R) performs the amplifier input Test.

SET CONDITION
The Amplifier detects no activity on the input circuit.

POSSIBLE CAUSES
- (+) circuit shorted to ground
- (-) circuit shorted to ground
- Open speaker circuits
- Amplifier
- Radio