18-05-2015, 06:05 PM
I looked at removing the pcb but it looks horrendous. All the front panel controls would need to be removed, some are mounted on the pcb, some aren't. The timebase speed switch is on a sub pcb mounted on the switch over the main pcb.
To get soldering access to the rear would seem to be by removing the crt!
I really need to isolate the fault first, it will be impossible to power the pcb after access is possible.
It took me about 4 hours to unplug and replace 4 transistors! Extra long nose pliers and firing transistors off in all directions whilst trying to get all 3 leads back into the holders using a magnifying glass and high powered light.
To get soldering access to the rear would seem to be by removing the crt!
I really need to isolate the fault first, it will be impossible to power the pcb after access is possible.
It took me about 4 hours to unplug and replace 4 transistors! Extra long nose pliers and firing transistors off in all directions whilst trying to get all 3 leads back into the holders using a magnifying glass and high powered light.
Boater Sam.
