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Good quality service manual.It has helped me to fix my FV1800,particularly for replacing the dial cord.The scheme is on A3 format and very readable.Thank.Olivier.
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This manual is complete and very readable.It was a great help for my two ICF5800L.The first one had the dial cord broken,and without the service manual it is impossible to replace it.Thank.Olivier.
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This is a top quality manual. You couldn't get better if you had the original and scanned it yourself. Best price on the net as well. Diagrams are clear and complete, text is sharp and easy to read. Granted you don't get the manual the second you click pay, but the few hours you have to wait for it to be available for download isn't a problem at all. This is a very reliable company.
Very VERY pleased with the product, and will buy others. Thanks!
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In a word AWESOME.
I never expected the quality and abundant content that I got with this manual. Everything you'd ever want to know from a service perspective is found in this manual, along with... as a bonus, operating instructions on how to use the unit. WOW. Very impressed with the quality of the manual. You won't be disappointed if you're looking for the EVS900 service manual.
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I thank Owen-Manuals.com for the wonderful service rendered to me, and this manual which I purchased helped me a lot in servicing my Denon System, which was lying in a dead state.
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2.13.3 Linearity adjustment The following flowchart shows the linearity check/adjustment procedure.
Connect an oscilloscope (CH: + Slope) and, while triggering it with the HID signal, observe the ENV OUT waveform.
2.13.4
PB switching point adjustment
The following flowchart shows the PB switching point adjustment procedure. Load the alignment tape.
Play the alignment tape, then set �ATF� (Auto Tracking Find) in �Deck Controller� of the SSS Software to ON. (Note 3)
The �PB Switching Point� in the Adjustment Utility of the SSS software is adjusted automatically.
Ensure that the ENV OUT waveform is linear and parallel, without a noticeable drop or variation in the overall level. If the waveform linearity is poor or there is a noticeable drop in level, adjust the guide roller by turning it with the roller driver.
2.13.5 Error rate adjustment The following flowchart shows the error rate adjustment procedure.
Record for about 5 minutes. (Note 6)
Set �ATF� (Auto Tracking Find) to OFF using �Deck Controller� of the SSS Software (Note 4). Observe the ENV OUT waveform to confirm that the overall waveform balance and linearity levels vary in accordance with the tracking variation as shown in Fig. 2-18-3. Repeat above steps as required. Is the PB ENV waveform ideally stable and does it vary ideally according to the tracking variation?
While playing the recorded signal, adjust �VCO Center Frequency (ME SP)� or �VCO Center Frequency (ME LP)� in �Deck Section� of the Adjustment Utility. To adjust VCO Center Frequency (ME SP) : Set Viterbi OFF. To adjust VCO Center Frequency (ME LP) : Set Viterbi ON.
No
No
Yes The linearity adjustment is complete if the PB ENV waveform is ideally stable and varies ideally according to the tracking variation. To close, play a prerecorded tape and check the audio and video.
Is the obtained error rate minimum (almost the typical value)?
Yes
The error rate adjustment is complete when the minimum error rate which is no higher than the typical value is obtained. (Note 5)
HID waveform
CH1 CH2
Note 5 : � The �typical value� refers to the following: CH1 or CH2: < 498.; with Viterbi OFF. Inter-channel difference: < 10 times between CH1 and CH2. Note 6 : � It is desirable to use a brand-new tape or an unused section of tape. This is to assure the adjustment reliability because using a damaged tape increases the error rate.
PB ENV waveform
Adjust variation in the parallelism
Fig. 2-18-4 PB ENV Waveform Note 3 : � The VHS section has an A/C head, and the first tracking position can be locked using the CTL pulse and drum FF when AT is off. Therefore, the linearity of the VHS section can usually be adjusted with AT off. However, this adjustment method is not available with the DV section, which does not have the A/C head. If ATF is turned off, the DV section performs tracking only of the speed system. Therefore, as time passes, the servo will be lost and the linearity adjustment will become difficult. Note 4 : � Since the speed servo function is active when ATF is off, there will be no problem even if the DVC ATF function is off, provided that it is for a few minutes.
2.13.6
Error rate measuring method
It is not necessary to use the error rate jig (YTU93083) or a frequency counter. The Service Support System Software displays the error rates of video CH1, CH2 and totals. When measuring the error rate of a channel, be sure to total the values of the video and the audio errors.
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