Troubleshooting Chart

TM 11-6625-539-15-2

6-2. Troubleshooting Chart

Symptom

Probable cause

Corrective measure

Batteries loose or weak. Meter M1 defec- Check batteries (fig. 6-1). Check

Meter pointer does not fall within BAT posi-

tion on scale with function switch on BAT.

tive.

meter M1.

Meter pointer does not align (para 7-2). ----- VR1, R10, R11, or R13 defective . . ..- . . . . Check VR1, R10, R11, and R13.

ME-30(*)/ U doea not indicate 100 mv (para Q1, Q2, Q3, on T1, or associated circuitry Check Q1, Q2, Q3, T1, and as-

defective (figs. 5-6 and 7-1).

sociated circuitry.

Meter pointer does not indicate full scale Q4, Q5, Q6, CR1, CR2, CR3, CR4, or Check Q4, Q5, Q6, and CR1

associated circuitry defective.

through CR4.

6-2