Just after Christmas my friend CGH was at home for a “PC-1500 day”.
We have talked, tinkered and exchanged some machines.
I’m proud to present you this one : the oldest PC-1500 i know !
(Except his one with a lower serial number)
Externally there is no change, it’s a PC-1500.
And on the back the only difference is the serial number :
But let’s opening the machine :
It’s strapped like a A01 ROM. Uh… these straps are white ! The first time i see one like this.
We can see on the SC613128 IC that it’s a A01 ROM.
The biggest white strap is mine, to repair a memory access problem.
Do you see the diodes on straps ? First time too…
Ok, more ?
The display board version is F2025, the oldest i know.
And the mode exciting, the CPU board !
There is no board revision !!!
If some of you have similar PC-1500, please, contact me to compare boards versions. 😉
And if you don’t have… this is a new quest !
Hello Juan Pablo !
Thank you for your comment, that’s very interesting so ear about another 1…., specially in Spain.
Same on mine about the battery door 🙂
Do you remember when you got your PC-1500 ?
I’m trying to understand the last char in the serial number.
Ending by a number should be the factory or the reseller zone.
Ending by a letter… don’t have any idea.
Do you know something about a PC-1500A user manual in Spanish language ?
Hello from Spain!
I am a long time user of this wonderful machine. I had the opportunity to buy the complete set of PC-1500, CE-150 and CE-158 serial/parallel interface about 33 years ago, more or less, quite an investment at that time.
I came across your blog and I got surprised: mine is an slightly older machine: 1001692Y. The display serial number I cannot tell you about, as I had not dismounted it deep enough, but I can confirm the the SC613128 IC is the same (A01). There are the same white patches to the circuit board, including diodes and resistors as in your pictures. If I discover something different I will let you know.
By the way, in my model the battery compartment screw has to be removed before batteries can be exchanged, so I replaced the cover with another one from a more recent model, having an opening besides the screw hole allowing it to slide out while keeping the screw in place.