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very helpful, I could not have cleaned motherboard and replaced the main fan without it
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Good manual, schematics nice and clear with good quality scanning. Woul dhave been nice to have immediate access after purchasing though.
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I was very glad recieving the service manal from You. Manuals were delivered promptly and were correct as advertised. A complete and very usefull service manual with all details. Thank you!
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Very clear copy. No pages missing. Big bonus is that it includes supplement. Price is affordable compared to what others ask for.
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Found the quality of the copy excellent and a very quick service. I would certainly recommend the service.
14GT15 14GT20
PURITY ADJUSTMENT
No. Adjusting point 1 PURITY ADJ. Adjusting procedure/conditions 1. Receive the GREEN-ONLY signal. Adjust the beam current to about 500 µA. 2. Maintain the purity magnet at the zero magnetic field and keep the static convergence roughly adjusted. 3. Observe the points a, b as shown in Fig. 4-1 through the microscope. Adjust the landing to the A rank requirements. 4. Orient the raster rotation to 0 eastward. 5. Tighten up the deflection coil screws. » Tightening torque: 108 ± 20 N (11 ± 2 kgf) 6. Make sure the CRT corners landing meet the A rank requirements. If not, stick the magnet sheet to correct it. Note: This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 500 µA. Waveform and others
a
b
Fig. 4-1
A
B A=B
Fig. 4-2 Rank "A" (on the right of the CRT)
A
B A=B
Fig. 4-3
Rank "A" (on the left of the CRT)
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