[davidross222]

Anyone know where I can get the peanut lamp (5V 60mA) used in the < > photocell control module in the keyboard.  Its B&O part number is 8230069.

Thanks

[davidross222]

Thanks for that.

D

[davidross222]

Hi Martin,

A few pix of the mystery cartridge.  Here fitted to SME on old Thorens.  Then I found the arm needs fixing!  So cartridge is still unused.

In the mean time I’m concentrating on refurbishing a rusty old GR8002 with broken MMC1 from eBay.

davidross222

[davidross222]

Thanks, martin.  But I need to buy some gloves first, because NOTHING gets the awful stuff off your skin!

David

[davidross222]

New thread:  what is best solvent to remove the gunk left by perished belts in tape drive??

[davidross222]

Sorry for delay in answering, Martin!  Thanks for the leads.

Checked all voltages including 14a around Dolby board.  All present.  But worst possible result for fault – after reassembly it works perfectly!!  Tested now with many tapes both in playback and record.

Guess I just wait for something to show up some day … sigh

[davidross222]

Thanks,  this deep electronics is daunting for an old bloke!   But B&O have made any servicing a delight!

I will check voltages around the Dolby ICs.

And your suggestion of Vref will be done, too.

davidross

[davidross222]

Thanks, TJames for your reply.  Yes, opened and replaced a number of darlingtons in circuit around RL101.  No VU’s on recorded tape.  No change on micro pin 36 !REC.

[davidross222]

Thanks, Dillen.

From the circuit I thought RL101 needs to pick for play.  No, nil display on VU’s when recorded  tape running.

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