GOLDSTAR TV SERVICE MODE
With the TV on, press MENU on the TV while pressing MENU on the
remote control. With CANAL + / - select the item and VOL + / - changes the data. To save the changes, since the remote control press OK (ENTER) and exit POWER
GoldStar MC-51B mode service
CTV Service Mode Simultaneously press MENU, Volume -, Program - on
the GoldStar MC-51B television panel.
Goldstar TV manuals schematic