File:TRS-80 Model I logic board test points (Technical Reference Handbook Figure 15).png
Summary
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Figure 15, "Logic Board", from Radio Shack's TRS-80 Micro Computer Technical Reference Handbook (second edition, second printing, 1982), printed page 61. A photograph of the TRS-80 Model I logic board labelled with the power-supply test and adjustment points: J1 (power), J2 (video) and J3 (tape) DIN sockets, power switch S1, reservoir capacitors C8 and C9, current-sense resistors R4 and R18 (+12 V DC), the meter common point, trimmers R5 and R10, centring trimmers R20 and R21, zener CR2, the +5 V point and the reset switch. Rendered at 200 dpi from the archive.org scan and cropped to the figure.
Source
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https://archive.org/details/TRS-80_Micro_Computer_Technical_Reference_Handbook_2nd_1982_Radio_Shack (retrieved 2026-10-21). The same handbook is hosted here as File:Radio Shack TRS-80 Micro Computer Technical Reference Handbook (2nd edition, 1982).pdf.
Author
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Radio Shack, a division of Tandy Corporation.
Licence
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Copyright Tandy Corporation. Hosted for preservation and repair reference, with the source cited.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:04, 21 October 2026 | | 1,390 × 1,122 (172 KB) | Josh (talk | contribs) | Figure 15 from Radio Shack's TRS-80 Technical Reference Handbook (p. 61) |
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