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Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: peter@easthope.ca Newsgroups: sci.electronics.repair Subject: Booting a PowerWave 604|132. Date: 28 Dec 2024 21:41:21 -0700 Organization: A noiseless patient Spider Lines: 31 Message-ID: <vkqne1$q7ac$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Injection-Date: Sun, 29 Dec 2024 06:41:22 +0100 (CET) Injection-Info: dont-email.me; posting-host="bcde018ac561af12cd62c73aa6f4fed2"; logging-data="859468"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19Lt73jEsckTxe2LXzRf+Ll" Cancel-Lock: sha1:CnxwiLM8NsXLY+9loVAWw1wsQoo= X-Mailer: Oberon Mail (ejz) on LinuxA2 Gen. 64-bit, Apr 19 2023 Bytes: 1902 Hi, I have a Macintosh clone PowerWave 604|132. The user's manual is available from the Internet Archive and other servers. The power button on the front panel and the button on the keyboard both cause the fan in the power supply to spin and the LED in the front to illuminate. The display remains black. I've tried two monitors and a second PCI video card. The display remains black in all cases. Neither the programmer's interrupt button nor reset button has effect. Meaning the Apple ROM isn't working? The CPU isn't working? Should an audible tone come from the speaker when the machine starts? One memory card is in each of two banks of sockets. Removing either card yields no change. The clock battery is probably dead but shouldn't cause this behaviour; correct? Adjacent to the memory are ROM and cache SSIMMs in sockets. Reseating is worth trying but the cards are stuck hard in the sockets. Other ideas? Poke around with an oscilloscope? Thanks, ... P.