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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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I purchased this manual to repair my Teac set and with the support of this manual I rectified the problem.
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Excellent service manual, i didn't believe i could find it for such old product, it is very explanatory, managed to fix the disk player!!!
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Nice manual. Clear copy and very rare, to boot. Great price, too!
2-4-6. Playback Level Check (MA-286 Board) Mode Playback Signal Alignment Measurement point Measuring instrument Specified value Alignment tape : SP mode color bar portion Video LINE OUT terminal Oscilloscope A=1.00 ± 0.02Vp-p
2-5-1. ACE Head Adjustment Refer to the �VHS mechanical adjustment manual 11). 2-5-2. E-E Output Level Check Mode Signal Measurement point Measuring instrument Specified value
� (9-973-623-
E-E 400Hz, �7.5dBs : IC540 pin 5 (2) CJ540 L/R Audio level meter �7.5 ± 2dBs ( ) : R-ch
[Check Method] 1) Check that the playback level satisfies the specified value.
A
[Check Method] 1) Input signal of 400Hz and �7.5dBs to the CN540 pin 5 (2). 2) Check that the audio output level is �7.5 ± 3dBs. 2-5-3. Overall Output Level and Distortion Factor Check Mode Self-record playback Signal Measurement point Measuring instrument Specified value 400Hz, �7.5dBs : IC540 pin 5 (2) IC540 pin 3 (1) Audio level meter and Distortion meter Playback Level: �6.3 ± 3dBs Distortion: 4.0% or less ( ) : R-ch
H
Fig. 7-2-9. 2-4-7. VCO Frequency Adjustment (MA-286 Board) Mode Signal Measurement point Measuring instrument Adjustment element Specified value Playback Alignment tape : SP mode color bar portion IC500 pin @§ Digital voltmeter CT500 A=2.4 ± 2.5Vdc
[Check Method] 1) Adjust CT500 until DC output level at IC 500 pin @§ (F. C) satifies the specification.
A 0V 1H
[Check Method] 1) Input signal of 400Hz and �7.5dBs to the audio input. 2) Record signal. 3) Playback the recorded portion. 4) Check that the output level is �6.3 ± 3dBs. 5) Check that the distortion factor is 4.0% or less. 2-5-4. Overall Noise Level Check Mode Signal Measurement point Measuring instrument Specified value Self-record playback No signal (Insert a shorting plug into the Audio LINE IN terminal) IC540 pin 3 (1) Audio level meter (IHF-A weighing filter is used) � 45.5dBs or less ( ) : R-ch
Fig. 7-2-10 2-5. AUDIO SYSTEM ADJUSTMENT � For the adjustment of the audio system, perform in the SP mode if there is no special notes. Use the alignment tape. [Connecting Instruments]
(CN540) Audio line OUTPUT L/R (CN540) Audio line INPUT L/R Audio oscillator 600� Attenuator VTR 47k� Audio level meter or distortion meter
[Check Method] 1) Record. 2) Playback recorded portion. 3) Check that noise level is � 45.5dBs or less.
Fig. 7-2-10. � Adjust in the SP mode if there is no special indications. � Perform the adjustment setting the switch on the following positions. � CHANNEL switch .................................................. LINE 1 [Adjustment Method] 1. ACE head adjustment.....Refer to the VHS mechanical adjustment manual . 2. E-E output level check 3. Overall Output level and distortion factor check 4. Overall noise level check.
7-5
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