Hi Jay, Thank you for your prompt reply. I see the 'play control' relay on the circuit diagram with the solenoid energised via J753 and the contacts applying power to the audio power transformer primary - it looks like the keyboard is connected to J753 or a service switch to activate the 'add' play control. Is the play subtract switch also called the 'scan subtract switch' which activated the 'sub' play control solenoid?
I cleaned all relay contacts on the mechanism hoping to cover the play control subtract contacts but the fault remains.
You mentioned that the play control relay is on the TSR - my JB does not this unit is it located on the RCSU1 module.
How do you suggest that I check the play control relay?
I will appreciate any further help.
Thanks
Rod George
-----Original Message----- From: Jay Hennigan via Jukebox-list jukebox-list@lists.netlojix.com Sent: Saturday, 13 April 2024 5:21 AM To: jukebox-list@lists.netlojix.com Cc: Jay Hennigan jay@west.net Subject: [Jukebox-list] Re: Help with Seeburg KD200
On 4/12/24 03:19, morganfield1913--- via Jukebox-list wrote:
Hello,
I have a Seeburg KD200 which I have enjoyed for many years - recently the mechanism travels back and forth continuously and the keyboard is not active, ie. No sound of relays when a selection is made.
I checked the voltage at the Tormat Electronic Unit (Type TEU-1) to be OK at -300V.
The fault may be around the 'Write-In' circuits but I need some help in the diagnosis.
Check the play control relay in the TSR. Also the play control subtract switch on the mechanism.
-- Jay Hennigan - jay@west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV
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