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There are currently no product reviews.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
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Wanting to repair a neighbours tape recorder I needed the necessary information, it makes it easier. Although the service manual is described as "Language : English" To my dismay I found that it is entirely written in German, a language I do not understand. At least I now have the schematics which will help of sorts. I may not use this service again due to the laguage difficulty after all when it states English you do not expect it to be entirely in another language.
Alignment and Adjustments
2-5 Beam alignment Adjustments
1. Select the �STANDARD� video mode. 2. Warm up the set at least for 10 minutes. 3. Enter the Convergence mode by pressing the remote control buttons in the following sequence : MUTE
4. Set the Beam Alignment Adjustment CY to Zero magnetic field area.
(Creation of CPM Zero Magnet) 6. Press the
PIP
(Creation of the 2-pole/4-pole zero magnets)
5. Check the squarewave at the point where the focus is misaligned (Use an audio oscillator). button on the remote control, and a vibrating dot-pattern appears. 7. Adjust the Focus-pack VR for defocusing. 8. Mute the other patterns (R/B) other than G-PATTERN. G-FOCUS (Use / PRE-CH buttons CORE remote control.) on the 9. Adjust the 2, 4 polarities of VM-COIL as shown in figure below. 10. Adjust the G-Focus until any light around the core disappears. G-FOCUS CORE
G-FOCUS
CORE (Varying G-Focus Pack)
Varying the 2-pole of VM (Positioning the Core in the Center)
G-FOCUS
CORE
Varying the 4-pole of VM (Adjust until the light around th b i l) Adjust G-Focus so that the surrounding flash can disappear from the spot. After G-Focus adjustments are complete, adjust R-Focus as above procedures. The B-CRT adjustments can be omitted because the variance of beam focus is small. (Only Vm-coil is mounted.) Adjust the Focus-pack VR for fine focusing. PIP Press the button on the remote control, and the mode changes to the Convergence Adjustment mode. S.MODE Press the button on the remote control to return to normal viewing. (When VM 2-Pole Adjustment is completed)
11. 12. 13. 14. 15. 16.
Samsung Electronics
2-15
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