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Acetronic (Radofin 1292) MPU-1000 Composite MOD

This Video Composite MOD needs some work unlike other similar consoles, you need to remove a resistor and insert a trimmer, otherwise the Video Composite output signal is really bad.
Works that need to be done:
- Remove the RF Modulator (remove it completely)
- Remove the 4.7k Resitor (see photo)
- Solder a 22k Trimmer between the resistor hole (hole side to pin 8 of the TEA 1002/PE1X) and the ground, the third pin of the trimmer is the Video Composite output. (see photo)
- Solder a wire for the Audio output. (see photo)
- Use the same hole of the RF cable for the new video and audio cable.
Before closing everything i recommend to adjust the trimmer for the best Video output.
Gallery of the Video Composite MOD:
Gotek HXC Alpha Firmware with OLED Display

Gotek HXC Alpha Firmware with OLED Display.
You can download here the Alpha Firmware Update.
Gallery:
source: hxc2001.com
Commodore Amiga CDROM A570 Restoration

Commodore Amiga A570 Restoration.
I have received two retro things in very bad conditions.
- 1 x Floppy Drive CD-1411
- 1 x Commodore Amiga CDROM A570
… but for now we are talking about the Commodore A570.
The Commodore A570 have serious problems that i list below:
- Outside case is very dirty, yellowed and broken in several parts.
- The Caddy Guide Tracks has been destroyed.
- Damaged screws thread.
- The metal plate under the CDROM is bent on one side.
- Many rusty parts.
- Main PCB with traces of water/limestone and rust.
Works that have been made:
- Fixed the CDROM CADDY holder, it was not easy because all the metal guides are bent, now it works.
- Main PCB cleaning on both sides with the Kontakt PCC and toothbrush.
- Cleaned and grease the two rails of the laser head.
- Cleaned the head lens of the CDROM.
- Fixed the bent metal plate under the CDROM.
- Cleaning outer casing.
- Fixed with the glue the two pins for closing the case with the screws.
Work still to be done:
- The bottom part of the A570 CDROM is very rusty, i need to sand down gently and at least give a hand of anti rust.
Aesthetically is very bad but at least works.
Gallery of the restoration:
Video:
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