File:TRS-80 Model 4P 65 W power supply 8790049 component layout (Service Manual p. 163).png
Summary
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Component layout of the Model 4P 65 W switching power supply, Tandy assembly 8790049 (board marked P.C. BD. 8709365 Rev C and 1700218), from page 163 of the TRS-80 Model 4P/4P Gate Array Service Manual (catalogue 26-1080, 1984). It shows the positions of C1-C38, the transformers T1 and T2, bridge BR1, the 3 A fuse F1 and connectors J1-J3. Rendered from the scan at 200 dpi and cropped.
Source
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File:Radio Shack TRS-80 Model 4P Service Manual (26-1080, 1984).pdf, page 163; original scan at https://archive.org/details/TRS80Model4PServiceManual (retrieved 2026-10-21).
Author
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Radio Shack, a division of Tandy Corporation
Licence
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Copyright Tandy Corporation. Manufacturer's service drawing, hosted for repair reference with the source cited.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:34, 21 October 2026 | | 1,615 × 1,050 (293 KB) | Josh (talk | contribs) | Model 4P PSU component layout from the service manual |
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