Did all plastic C128Ds have a missing U35?

From: Jim Brain <brain_at_jbrain.com>
Date: Wed, 20 Mar 2024 09:57:26 -0500
Message-ID: <5064fe6b-3287-42d9-bc13-dca070e1b995_at_jbrain.com>
Maybe this is more common, but someone sent me pics of a C128D (non DCR, 
plastic case) with an unfilled U35 ROM socket.  Unit works perfectly.  
Jumper J4 (I think is the one) is shorted, so U32 is handling ROM1/ROM4 
duties.

The ROM in U32 looks original CBM.  318077-02  C128 IDIN + C64

Looks like Zimmers has the -01 and -03 variants.

I asked if the rom could be read, to have it for Zimmers.

Jim

-- 
Jim Brain
brain_at_jbrain.com
www.jbrain.com
Received on 2024-03-20 17:00:02

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