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TROUBLE SHOOTING AIDS (cont)
POWER
DEAD SET
If filaments fall to light, check AC interlock assembly, yoke plug Interlock,
switch on volume control and Tl. If filaments light, substitute V19 and V20.
Check B+ filter and decoupling components.
SMALL AND/OR DIM FIX
Substitute V19 and V20. Check Bt filter and decoupling components.
HIGH VOLTAGE
LOSS OF HIGH VOLTAGE
Check by substitution V15, V16, V17 and V18. Check waveform W13.
If Satisfactory
Check C78, C81, C82, R94, R96, R97,
L32, T2, T4A and other associated
circuit components.
If Unsatisfactory
Check C75, C76, C77, R85, H88,
R92 and other associated components.
INSUFFICIENT HIGH VOLTAGE
Check by substitution V15, V16, VI7, V18, V19, and V20. Check picture tube.
Proceed as outlined under "Loss of High Voltage".
Check by substitution V15, V16, V17, V18, V19 and V20. Check C78, R94, R97,
T2, T4A and other associated circuit components.
GENERAL
RASTER SOUND NO PIX
Follow procedure outlined under "Loss of Video".
RASTER
NO SOUND NO PIX
Check by substitution VI, V2, V3, V4, and V5. Check video detector crystal
and assembly. Check other associated components.
NO RASTER NO SOUND
Follow procedure outlined under "Dead Set".
INTERMITTENT STREAKS
Check high voltage section for corona discharge and arcing. Check video
signal for Interference pulses.
Symptoms shown are assumed and are not indicative of the quality and workmanship of this equipment.
CHASSIS BOTTOM VIEW-TRANS., INDUCTOR & ALIGN. IDENTIFICATION
PAGE 17
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