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Fully functional usable service manual. Considering the age of the manual and device quality was better than expected
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Thank you very much, I've been very happy to find this manual on "Owner Manual". It's a perfect copy and it has been really useful for my work!
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It took about 24-hours after my payment before I was able to get to the download. Apparently, payment processing is not 100% automated. That is no big deal, just be aware of that going in.
After I got to it, it was in good shape, easy to read, etc. Not some cheap FAX copy looking thing.
Also, this site was the cheapest I found. Another Plus!
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Good price, very legible manual, exactly what I needed -- but had to wait a day to actually get the download of the manual. Would have preferred to download it immediately after payment rather than waiting for someone to "process" my order. I was surprised that I had to wait that long.
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As the only source for this manual it rather rank quite high since it is well scanned and perfectly readable.
VL-E990E 4-4-4. Adjusting the Tu guide
After replacement of Tu guide preset and adjust the height. (1) Tu guide height presetting (Figure 6) Adjust the height from the upper surface of mechanism chassis to the upper surface of lower flange with the aid of jig.
Lower flange Upper flange
VL-E990E
Height setting jig Master plane (JiGMP-MX7U)
Figure 6 (2) Adjusting the Tu guide (Figure 7) 1 Playback the alignment tape (VR2DBOPS). 2 Check that the tape runs at the same height near the capstan shaft in case of V/S F and V/S R. 3 If the tape running position in case of V/S R is higher than the tape running position in case of V/S F, turn clockwise the Tu guide nat. If the tape running position in case of V/S R is lower than the running position in case of V/S F, turn counterclockwise the Tu guide nat.
Capstan shaft Nat
Pinch roller
4-4-5. Checking the V/S F and R waveforms (Figure 8)
(1) Playback alignment tape (VR2DBOPS), and set the V/S R mode. At this time ascertain that the waveform crest pitch is kept constant for more than 5 seconds. (2) Set the V/S F mode. At this time ascertain that the waveform crest pitch is kept constant for more than 5 seconds. Unless the constant pitch is obtained, execute the checks of Section 4-2, 3, and 4.
Figure 7
a b c d
abcd
Figure 8
4-4-6. Checking after adjustment
(1) Envelope check 1 Playback the alignment tape (VR2DBOPS). 2 Ascertain that the envelope maximum to minimum ratio is 65% or more. (Figure 9) 3 Ascertain that the waveform does not change remarkably. (Figure 10)
C E MIN E MAX A C
Figure 9 (2) Rise check
E MIN E MAX
65 (%)
Figure 10
C 1/8A
1 Playback the alignment tape (VR2DBOPS). 2 Once eject the cassette, and then load it again. 3 Set the playback mode, and ascertain that the RF waveform rises horizontally within 2 seconds. At this time ascertain that there is no tape slackness near the pinch roller.
Capstan shaft Tu guide
Tu GR Tape slackness
4 After V/S F, R and FF/REW execute playback, and ascertain that the RF waveform rises horizontally within 2 seconds. At this time ascertain that there is no tape slackness near the pinch roller. (3) Checking the tape travel 1 When the tape is played back, ascertain that tape lift and tape curl of 0.3 mm or more do not occur at the lower flange of Si roller, upper flange of Sup GR, upper flange of Tu GR, and upper/lower flange of Tu guide. 2 In case of V/S F and R ascertain that no curl is found at each flange.
Tension pole
Figure 11
Sup tilted pole
Si roller
Sup GR
Drum
Tu GR
Drum Tu tilted pole
Pinch roller Tu guide
Figure 12
4-6
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