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Manual was destroyed and this purchase made it possible to recover my manual . It was easy to down load and smooth to use thanks .
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Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
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Great price, Quick delivery, the document was very usefull A+++++++++++++++
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Thank´s for your help, I already recived these manual from you
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Thank you for your manual It has the basic things to and i use the Oszi for Longer Time.
THX
1 November 1996
MASTER FEED SECTION
4. MASTER FEED SECTION
4.1 THERMAL HEAD VOLTAGE ADJUSTMENT
Purpose: To maintain master making quality and extend the lifetime of the thermal head. NOTE: This adjustment is always required when the thermal head or power supply board is replaced.
[B]
[A]
1. Remove the rear cover and the right cover of the machine. 2. Disconnect the connector [A] from the plotter unit. 3. Check the voltage noted on the decal located on the thermal head. (The voltage is different for each thermal head.) 4. Access "I/O Check Mode". � SP mode No. 131, then Output Check mode 41. 5. Press the Start key to apply the thermal head voltage. 6. Confirm that the voltage between one of the VHD terminals and one of the ground terminals of CN503 is at the level specified on the decal (Within + 0 V, � 0.1 V). 7. If it is not, adjust VR1 [B] on the power supply board. NOTE: Press the Stop key to stop applying the thermal head voltage. Do not keep the thermal head voltage on for a long period.
Replacement Adjustment
5-15
 $4.99 VT2240 RICOH
Service Manual Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…
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