I recently received a Beomaster 2400 (Type 2902) from a customer in Connecticut for a full functional restoration. The unit came well-packaged in a foam-padded box and so there was no shipping damage. I took it out of the box and put it on the bench:
I love the sleek design of these units! Opening the top panel revealed the tone controls and FM presets:While the unit is in pretty good cosmetic condition it has the usual delaminating veneer issue:
I plugged the unit in and received some life signs. Most bulbs seem to work, but the one indicating the Tape input seems to be out. I unplugged it, since it is a good idea to not run unrestored Beomasters of this vintage too long since there is always the danger of burning out the output transistors if the quiescent current trimmers are oxidized. I prefer replacing all electrolytic capacitors and these trimmers first before I start running a Beomaster.
I started the disassembly process, necessary to get to the circuit boards. First came the back and bottom panels:
Then I removed the top cover, which revealed the tone control and FM preset mechanics:
Next in line was the front panel:
This revealed the bulb housings and the tone control indicator foils:
Then I removed the tone control and FM presets PCB:
And finally I unbolted the main PCB and I put a clamp on the transformer to keep it upright during the main PCB restoration.
Then I removed the top cover, which revealed the tone control and FM preset mechanics:
Next in line was the front panel:
This revealed the bulb housings and the tone control indicator foils:
Then I removed the tone control and FM presets PCB:
And finally I unbolted the main PCB and I put a clamp on the transformer to keep it upright during the main PCB restoration.
Then I disconnected the FM box and then I could pull the main PCB away from the frame for direct access to the components:
Let the fun begin!...;-). Stay tuned for an update on this project!
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