User:Jstapko/EngLab/SonyKP-46S25: Difference between revisions
Created page, 4 sections, added model info and links to manuals. |
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Latest revision as of 18:01, 12 November 2014
Projection TV
[edit | edit source]This project is to reverse engineer a projection TV that Scott and I salvaged from a dumpster on November 11, 2014.
Manufacturer's Label
[edit | edit source]The manufacturer's label was stuck to the back of the back panel. Scott and I left the back panel in the dumpster because it was big and bulky, and we didn't need it. On November 12, I copied the information from the label. The label said:
"Sony Color Rear Video Projector Model: KP-46S25 AC: 120V 60Hz Ser. 9019336
Product of Sony Electronics INC. Westmoreland Co. PA. 15666
Manufactured November, 1996"
on UL logo (written around edge of circular logo):
"Listed 9C06 Audio/Video Product"
In a separate box on the label:
"Sony Corporation 7-35 Kitashinagawa 6-Chrome, Shinagawa-KU Tokyo, 141 Japan"
(I suspect this is the address of Sony's corporate headquarters)
Online Documentation
[edit | edit source]On November 12, I did an initial search for manuals and related literature online. I found:\
- Sony's page on this model of TV Includes operating manual and child safety info, but no service manual.
- searspartsdirect.com's page on this TV This page includes an assembly diagram of the cabinet, and a few replacement parts.
- A doityourself.com thread on a picture problem. It seems to have been a bad tuner.
- A fixya.com page on spontaneously turning off. This includes a checklist of possible problems that might be helpful.
- A justanswer.com page on powers up, but no picture. User "Dan- Master Tech" says "These sets are known for faulty solder connections and horizontal output/flyback failures."
- A Service Manual at Electrotanya.com (an excellent resource generally for service manuals and schematics)
Problems
[edit | edit source]- One CRT board is missing
- Boards are very dusty, need to be cleaned before powering up
- Many other parts missing
- Cut ends of wires are loose
Next Steps
[edit | edit source]- take a picture of the manufacturer's label, or find a copy online (mabye Ebay, Amazon)
- clean the dust off the board,
- document the current condition
- take photos of lables, signs, semiconductor part numbers, etc, before powering up
- read the service manual and other literature above