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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Very good scanned copies. Quick response and reasonable price. Thanks for service!
9. At this time, Re-check that Horizontal line is white. If not, Re-adjust Cut-off Adjustment until the Horizontal Line becomes pure white. 10. Turn off and on again to return to normal mode. Receive APL 100% white signal and Check Chroma temperatures become 9200K (x: 286 / y: 294)±3%. Note: Confirm that Cut Off Adj. is correct after this adjustment, and attempt Cut Off Adj. if needed.
4. Press [VOL o / p] button on the service remote control unit and select �U-Offset YUV (Magenta)� mode. 5. Press [CH o / p] buttons so that the waveform of the �U-Offset YUV (Magenta)� mode is equal to the waveform of the �U-Offset YUV (Cyan)� mode.
16. V-Offset YUV
1. In VIDEO mode (white 50%) of YUV, press [3] button on the service remote control unit and select �V-Offset YUV� mode. (Display change �UOffset�, �V-Offset�, �U-Offset YUV� and �V-Offset YUV� cyclically when [3] button pressed.) 2. Press [VOL o / p] button on the service remote control unit and select �V-Offset YUV (Cyan)� mode. 3. Check the waveform of the base of Q1511 on the CRT CBA with the oscilloscope. 4. Press [VOL o / p] button on the service remote control unit and select �V-Offset YUV (Magenta)� mode. 5. Press [CH o / p] buttons so that the waveform of the �V-Offset YUV (Magenta)� mode is equal to the waveform of the �V-Offset YUV (Cyan)� mode.
13. U-Offset
1. In VIDEO mode (white 50%) of V1 or V2, press [3] button on the service remote control unit and select �U-Offset� mode. (Display change �UOffset�, �V-Offset�, �U-Offset YUV� and �V-Offset YUV� cyclically when [3] button pressed.) 2. Press [VOL o / p] button on the service remote control unit and select �U-Offset (Cyan)� mode. 3. Check the waveform of the base of Q1531 on the CRT CBA with the oscilloscope. 4. Press [VOL o / p] button on the service remote control unit and select �U-Offset (Magenta)� mode. 5. Press [CH o / p] buttons so that the waveform of the �U-Offset (Magenta)� mode is equal to the waveform of the �U-Offset (Cyan)� mode.
14. V-Offset
1. In VIDEO mode (white 50%) of V1 or V2, press [3] button on the service remote control unit and select �V-Offset� mode. (Display change �UOffset�, �V-Offset�, �U-Offset YUV� and �V-Offset YUV� cyclically when [3] button pressed.) 2. Press [VOL o / p] button on the service remote control unit and select �V-Offset (Cyan)� mode. 3. Check the waveform of the base of Q1511 on the CRT CBA with the oscilloscope. 4. Press [VOL o / p] button on the service remote control unit and select �V-Offset (Magenta)� mode. 5. Press [CH o / p] buttons so that the waveform of the �V-Offset (Magenta)� mode is equal to the waveform of the �V-Offset (Cyan)� mode.
15. U-Offset YUV
1. In VIDEO mode (white 50%) of YUV, press [3] button on the service remote control unit and select �U-Offset YUV� mode. (Display change �UOffset�, �V-Offset�, �U-Offset YUV� and �V-Offset YUV� cyclically when [3] button pressed.) 2. Press [VOL o / p] button on the service remote control unit and select �U-Offset YUV (Cyan)� mode. 3. Check the waveform of the base of Q1531 on the CRT CBA with the oscilloscope.
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L4905EA
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