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This service manual helped me to repair my PIONEER. Iam very satisfied, that I found it here.
Even the price of manual was not so high that person would not be able to spend a few money.
But that is very worth spent money. Thanks
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Excellent quality service manual. Quick processing, fair prices. Love to do business again. Thank you!!!
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Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
MECHANICAL ADJUSTMENT (CONTINUED)
d. Make sure that the triangular mark �A� of the L LOADING Ass�y is aligned with the mark �b� of the R LOADING Ass�y. (Fig. 4.4) e. Reference hole �C� of the LOADING RACK should be aligned with the reference hole of the R LOADING Ass�y to make the teeth of the LOADING RACK is aligned as shown in Fig. 4.4.
2. Adjustment and measurement of the BACK TENSION (Fig. 4.5, 4.6)
a. Check that the location of the TENSION POLE is in the right position. If not, adjust that by refering to the �4. Adjustment of the position of the TENSION POLE�. b. Playback a completely rewound T120 tape for 20 seconds. (Generally tape transporting section is settled down in 20 seconds) c. Measure the BACK TENSION by using the TENTELO METER. (Refer to Fig. 4.5) The result should be within the range of 20g~30g. d. If the BACK TENSION is out of the range, change the position of the TENSION SPRING of repeat the process of �4. Adjustment of the position of the TENSION POLE�. (Fig. 4.6) CAUTION: � If the measurement result is greater than the upper limit, change the hook point of the spring to position �A�. � Confirm that all of the three probes of TENSION meter are in contact with the tape. � During measuring, don�t touch any other parts of the MECHANISM(i.e, MAINBASE). It is recommended that this measurement be repeated at least three times for an accurate reading.
FIg. 4.4 Assembly reference between the LOADING RACK and the LOADING LEVER ASS�Y
FIg. 4.5 Measurement of the BACK TENSION
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