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Great manual, great price. Has a few of the basic operating instructions that most service manuals leave out. Complete instructions for disassembling board by board, safety precautions, schematics, complete parts list.
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I am very pleased with the service manual for my RT-909. This was an easy purchase and great procuct, and much cheaper than other venues i had looked at. This web site is now listed in my favorites list. KEEP UP THE GOOD WORK. THANKS. J. BROWN
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A very well written and easy to understand manual.
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There was no problem at all.After paying i had to wait only a few hours,than i could
download the manual in best pdf-quality.
Thank You !
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I found this service manual to be complete in every detail except for troubleshooting charts. It would be helpful if it had a set of troubleshooting charts; however it is a very good manual otherwise and for the price it is very well worth it.
5-1 Troubleshooting (GY15MS*)
Notes: 1. Before troubleshooting, setup the PC�s display as below. � Resolution: 1024 x 768 � H-frequency: 61 kHz � V-frequency: 75 Hz 2. If no picture appears, make sure the power cord is correctly connected. 3. Check the following circuits. � No raster appears: Stand PCB, Main PCB � 14V develop but no screen: Main PCB � 14V does not develop: Main PCB 4. If you push and hold the Exit for more than 5 seconds, the monitor automatically turns back to the factory preset.
5-1-1 No Power
Does proper DC 14V appear at DC jack and Pin 1 of CN201? Yes Does proper DC 5V, DC 3.3V appear at Pin 2 of IC201, and Pin 3 of IC202? Yes Does proper DC 1.8V appear at Pin 4 of IC204? Yes Does proper 5.0V appear at Pin 5, 6 of IC401 and Pin 7, 8 of IC401? (DC 3.3V (DPMS_ON Pin 2 and 4 (OFF_SW) of IC401 must be low level) Yes Check IC402. No No Check IC204 and related circuit. No Check IC201, IC202 and related circuit. No Check signal cable and power adaptor and CN201.
Check IC401, IC114 and related circuit.
GY15MS*/GY17MS*
5-1
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