[TechAssist] Hitachi 27CX7B shutdown/odor-bonded yoke delema
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 14 Aug 2004 21:36:37 +0000
Hitachi
27CX7B
Set came in late today with the complant that it had gone dead
but started working again but would develop lines an an akrid odor. On bench
testing at first turn on had a sllight trapizoid picture (smaller on top)
for a moment with a severe divergance of the beam convergance, running did
not show lines and the convergance recovered but the odor appears to be
comming from the yoke so essentially a fatal situation (85% cetanity on yoke
fault). The only apparent options would be try to cut off the yoke and find
a replacement or replace the CRT assembly. Both options will probabbly be
too expensive for the customer (haven't checked yet as am evaluating
options) which may present the possibilty of getting left with the set. (did
collect the estimate fee in advance) the yoke is a thompson yoke with the
number 2G27012-03B. The CRT end suffix is X02, I have junkers with the X01
suffix but most of the time the X01 suffix shows too wide of a picture for
the X02 chassis. so the question is on equivants for the yoke (or insitu
repair options) of how to modify the chassis to accept an X01 tube?
Peter Oliver
Tucson Radio TV
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