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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
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G7WHK
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I will definitely be back for more information when I need it.
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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.
13. Head Switching Position Adjustment
Purpose: Determine the Head Switching Position during Playback. Symptom of Misadjustment: May cause Head Switching Noise or Vertical Jitter in the picture. Note: Unit reads Head Switching Position automatically and displays it on the screen (Upper Left Corner). 1. Playback test tape (FL8A, FL8N). 2. Enter the Service mode. (See page 1-7-1.) Then press the number "5" button on the remote control unit. 3. The Head Switching position will display on the screen; if adjustment is necessary follow step 4. 6.5H(412.7µs) is preferable. 4. Press "CH o" or "CH p" button on the remote control unit if necessary. The value will be changed in 0.5H steps up or down. Adjustable range is up to 9.5H. If the value is beyond adjustable range, the display will change as: Lower out of range: 0.0H Upper out of range: -.-H 5. Turn the power off and on again.
The following 2 adjustments normally are not attempted in the field. They should be done only when replacing the CRT then adjust as a preparation.
14. Purity Adjustment
Purpose: To obtain pure color. Symptom of Misadjustment: If Color Purity Adjustment is incorrect, large areas of color may not be properly displayed. Test point --Tape --Adj. Point Deflection Yoke Purity Magnet M. EQ. Pattern Generator Figure Mode --Input *Red Color Spec. See below.
GREEN
RED
BLUE
Fig. 8 * This becomes RED COLOR if the 7KEY is pressed while in service mode. 1. Set the unit facing east. 2. Operate the unit for over 30 minutes before adjusting. 3. Fully degauss the unit using an external degaussing coil. 4. Set the unit to the AUX mode which is located before CH2 then input a red raster from video in. 5. Loosen the screw on the Deflection Yoke Clamper and pull the Deflection Yoke back away from the screen. (See Fig. 9.) 6. Loosen the Ring Lock and adjust the Purity Magnets so that a red field is obtained at the center of the screen. Tighten Ring Lock. (See Fig. 8,9.) 7. Slowly push the Deflection Yoke toward the bell of the CRT and set it where a uniform red field is obtained. 8. Tighten the clamp screw on the Deflection Yoke.
1-7-8
T1000EA
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