Does anyone still repair these?

Thanks

Hello trying to get a c128D up and going again.  It will boot to c64 mode,  the cart does work.   ON power up I get a boarder but no text just blank screen after a flash page of garbage.  From ray's repair docs I suspect.
U33       318018-02  C128 BASIC LO ROM
     No BASIC startup screen in 128 mode only. Computer goes into
"monitor" mode.

U34       318019-02  C128 BASIC HI ROM
     Blank screen with border at 128 mode startup. Lines or "garbage"
inside border.

   I have a donor c128 but the do the IC locations equal the same spot on a 128D board?  The chip #s are different between the two.   I did swap U34 as the board layout and trace that i tested was exact;  this gave me a "break error" and some ML code (?) following it when booted instead of the blank screen.  I think i am in the right area, suggestions or any info please.  Are there bin files and what type prom if they exist could be used to replace these. 

I have another working 128D, but dont want to chip swap it with this one as there is some hum in screen and audio of the broken one and I don't want to wreck anything know good.  I'll pick up caps and repair supply in the AM>

Thanks

John

I have (2) 128DCR's  on the way with 1571's.  Been trying to figure out my options for a monitor.  Leaning towards that little ebay device and mod for the extra colors.

What type input does a monitor need for the 128 native.  I have several broadcast RGB monitors, but have no idea what the c128 really wants to connect to.

Sorry for the basic ? but just getting started in the 128 realm.  Any good software suggestions?

Thanks

John

Any ideas as to total production with the Silver badge label? 

Looking for some IEEE-488 cables to connect the PET 8032 to an 8250 drive, or if anyone knows where they can be bought.  Thanks


John

Could someone confirm that I can use TMS2532 and TMS2516's to replace 2332 Rom and 2316 that were use factory in the PET?  I know there is a slight pin difference in the 2532's but i believe they still work as a drop in. 

Thanks

John

I think there were several different brands available,  looking to purchase an interface card to allow my 8250/8050 drives to be connected to a C64.

Also may be interested in a superpet if anyone has one available.  Would be looking to pick it up at the C4expo to avoid shipping costs, but might consider shipping as well.

If you have anything please, PM or email.  Thanks

The schematics I have do not list the voltages off the main transformer.  Does anyone know the voltages that are on the input to the board feeding the bridges and reg's?  Trying to verify that the transformer is good.  Thanks