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Service Technical Information
MODEL NO.
TV−F2000 / F2400
SUBJECT
Notes on repairing flat CRT TV set
REF.No. :G − 99 − 076 − E0
DATE :02. MAR. 2000
<CONTENTS>
Pay attention to the following notes when repairing flat CRT a TV set. When repairing a unit, DO NOT LEAVE the degaussing cable disconnected.
Conventional TV sets allow repairing work with a degaussing cable removed.
When repairing a TV set with flat CRT, however, the instruction below must be followed. The instruction is provided on the service manual also.
Make this known to all staff concerned.
Notes on repairing:
DO NOT turn on the power of a TV set with a flat CRT when a degaussing coil is removed.
Be sure to connect a dummy load when removing a degaussing coil. Scheme 1: Use another degaussing coil to be connected for repairing.
Scheme 2: Use a 6.8Ω, 20W resistor, as the jig to be connected to the connector of degaussing coil.
Turning on the power of a unit with neither degaussing coil or dummy load results in opening a fixed resistor R848, which is inserted in parallel to the degaussing coil.
The following shows relations between the models concerned and the cement−resistors:
| Model name | R848 | Type |
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| TV−F21ST1 | 33Ω/2W | cement resistor |
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| TV−F25ST1 | 27Ω/2W | cement resistor |
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| TV−F2400 |
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| TV−F2000 | 56Ω/2W | cement resistor |
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If the resistor opens, noises appear in horizontal directions on screen.
Also pay attentions to information about the flat CRT models to be released in the future. Component values of the dummy resistors will be announced as occasion arises, and will be contained in the service manual. Always take notice of the information.
| G | R | Code No. | Access Code | Modified Ser. No. | Parts Schedule |
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