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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.
Repair Item 1: At power on, �00� is not displayed. 1
Is the switch �HOLD� set �OFF� ? Yes Is the voltage 3.25 !0.1V at terminal TP1 ? Yes Does clock pulse appear at pin 15 of IC801 ? Yes * Check IC801. * Check the circuit around IC801. * Check LCD801.
No
* Set the �HOLD� switch �OFF�.
No
* Check IC502. * Check the circuit around IC502. * Check the Q401, Q402, T401 circuit.
No
* Check IC601. * Check the X601. * Check the circuit around IC601.
Repair Item 2: Total track number is not displayed. 2
Does the LASER emit ? Yes
No
* Check >3V appears at pin 3 of IC501. * Check IC501. * Check Q501.
Does the lens move up and down ? Yes * Check IC501 and IC601. * Check the circuit around IC501 and IC601.
No
* Check IC502. * Check the circuit around IC502.
5
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