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Transistor Replacement
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04-22-2022, 04:52 PM
Post: #11
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RE: Transistor Replacement
@AndiGer - Good memory to remember a post from 2011!
The 97 manuals contain typos about the Keyboard Q4: 1976 manual - Q4 = 1854-0071 PNP 1982 manual - Q4 = 1854-0071 NPN I still don't know which one is correct. I'll pull one from working 97 and check. Based on my distant discrete transistor knowledge from the 1970s (!!), I think it's NPN. This means the 1976 service manual should read Q4 = 1854-0071 NPN. Is this correct? Please see Tony Nixon's other corrections. |
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Transistor Replacement - teenix - 04-18-2022, 11:51 AM
RE: Transistor Replacement - AndiGer - 04-18-2022, 12:22 PM
RE: Transistor Replacement - teenix - 04-18-2022, 12:45 PM
RE: Transistor Replacement - teenix - 04-19-2022, 03:13 AM
RE: Transistor Replacement - Dreato - 04-20-2022, 03:32 PM
RE: Transistor Replacement - teenix - 04-20-2022, 09:26 PM
RE: Transistor Replacement - Dreato - 04-21-2022, 08:57 PM
RE: Transistor Replacement - Dreato - 04-21-2022, 09:28 PM
RE: Transistor Replacement - teenix - 04-21-2022, 10:21 PM
RE: Transistor Replacement - AndiGer - 04-22-2022, 02:39 PM
RE: Transistor Replacement - Dreato - 04-22-2022 04:52 PM
RE: Transistor Replacement - Dreato - 04-22-2022, 09:42 PM
RE: Transistor Replacement - AndiGer - 04-23-2022, 06:17 AM
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