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Old 12-07-2014, 02:55 PM
Findm-Keepm's Avatar
Findm-Keepm Findm-Keepm is offline
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Join Date: Jun 2007
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What is the model number? Hitachi service data that I have is by model, not chassis. Should be a CTXXXX model number. Hitachi sets of that vintage had a pretty good AGC action, and it may be as simple as backing off of the AGC control. Too early of a set to have a jungle chip, so it's likely an easy fix for the buzz.

Lemme know the model and I'll see if I have a copy of the service data, archived by Hitachi in TIFF format.

Cheers,
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CET-Consumer Repair and Avionics ('88)
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