Zenith D35 Service Manual page 58

CIRCUIT DIAGRAMS
1. POWER(SMPS) CIRCUIT DIAGRAM 1
No power.
BD101, TH101 are defective.
No Power.
F101 is defective.
NOTE) Warning
NOTES) Symbol denotes AC ground.
NOTE) Parts that are shaded are critical
NOTE) With respect to risk of fire or
NOTES) Symbol denotes DC chassis ground.
NOTE) electricial shock.
Switching Error.
IC101 is defective.
No 32VA.
D122 is defective.
Switching Error.
IC104 is defective.
No 3.8VA.
D127 is defective.
No 5.3VA.
D127 is defective.
Switching Error.
IC105, 106 are defective.
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IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
CUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE ZENITH ELECTRONICS CORPORATION.
ALL COMPONENTS SHOULD BE REPLACED ONLY
WITH TYPES IDENTICAL TO THOSE IN THE ORIGI-
OPTIONAL TABLE
Digitron Error.
D123, F102, ZD121, D124 are defective.
No 33VA.
D125 is defective.
No 13VA.
D126 is defective.
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NAL CIRCUIT. SPECIAL COMPONENTS ARE SHADED NOTE :
ON THE SCHEMATIC FOR EASY IDENTIFICATION. 1. Shaded( ) parts are critical for safety. Replace only
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF- with specified part number.
FER FROM THE ACTUAL CIRCUIT USED. THIS WAY, 2. Voltages are DC-measured with a digital voltmeter
IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode.
PERFORMANCE IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTIL THE NEW SERVICE
LITERATURE IS PRINTED.