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RICOH VT6000
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of RICOH VT6000 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 87 (click to view)
29 January 1998

MASTER FEED

5. REPLACEMENT AND ADJUSTMENT
5.1 MASTER FEED
5.1.1 THERMAL HEAD VOLTAGE ADJUSTMENT
VR1

CN503

C228R500.WMF

Purpose:

To maintain the quality of masters and to extend the life of the thermal head.

Adjustment Standard: There are two steps. 1) The output voltage for the thermal head from the power supply unit must be 22.5 volts (r 0.5). 2) The output from the DC/DC converter board is different from one thermal head to another. Refer to the voltage value (X) on the thermal head decal. The output should be between "X-0.1" and "X" volts. NOTE: This adjustment is always required when the thermal head or power supply unit is replaced. 1. Turn off the main switch and remove the paper exit cover plate (4 screws). 2. Disconnect connector CN503 of the power supply unit. 3. Turn on the main switch, and access the SP mode and select output check mode (SP131) No. 41. 4. Press the Print Start key to apply thermal head voltage continuously (60 seconds). 5. Check the voltage between CN503-15 and CN503-12. If the voltage is not 22.5 volts (r 0.5), turn VR1 on the power supply board to adjust the voltage.

Replacement Adjustment

5-1

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