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Complete service manual in very good scanning quality with all schematic and PWB graphics as well as assembly & maintenance instructions. A slight drawback is that the rastering of the PWB graphics sometimes makes it a bit difficult to follow fine traces, but no showstopper.
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Purchased the manual that I was looking for at a great price and could download it easily.. Great service experience and for future purchases I plan to use the site. Thank you very much
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Service manual in good quality, it was very helpful to me. Perfect service, I am very satisfied.
Jochen Kelm
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Exellent manual ,it was in great condition,and got all the info i expected,5 stars!!
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I searched the Internet exhaustively for this manual and Owner-Manuals was the least expensive...but provided an excellent reproduction within 4 hours. Very satisified.
2-3.
2-3-1.
SERVO SYSTEM Adjustment
2-4.
VIDEO SYSTEM ADJUSTMENT
RF Switching Position Adjustment (RP-230 Board) Purpose: Adjust the interval between A ch and B ch of tape playback output. Improve the interchangeability with other tapes and sets. When it is out of order, the interval appears on the screen, the screen is disturbed. Mode Signal Measurement Point PB Alignment tape SP mode color bar CH1: VIDEO LINE OUT CH2: Pin 2 of CN261 (RP230 board) (RF SWP) Oscilloscope 6.5 ± 0.5 H (416 ± 32 µsec)
Adjust the video system in the following sequence as a rule. The color video signal supplied from the pattern generator is used as a video input signal for video system adjustment in the recording mode. Make sure that sync. and color burst signals meet requirements specified at set up of adjustment shown in Fig. 7-2-1. [Adjustment Sequence] 2-4-1. Playback Y Signal Level Check 2-4-2. Recording Chroma Level Check 2-4-3. Sync. AGC Check 2-4-4. X�tal Oscillation Frequency Check 2-4-1. Playback Y Signal Level Check (MA-315 Board)
Measuring Instrument Specified Value
Purpose: Confirm that the playback Y signal level is correct. Mode Signal Measurement point Measurement equipment Specified value PB Alignment tape SP color bar Pin #� IC201 Oscilloscope 2.10 ± 0.18 Vp-p
Adjusting Method: 1) Connect RP-230 board Pin 5 of CN261 to the GND for about 1 secont to activate the RF switching position adjustment mode. 2) Check appear �A P� on FL display. 3) Using the channel + and � buttons, adjust to 416 ± 32 µsec (6.5 ± 0.5 H). 4) Press the pause button.
Confirmation Method: 1) Confirm that the play Y level is 2.10 ± 0.18 Vp-p.
CH1 CH2 Approx. 5 Vp-p V enargement Vertical sync. signal Approx. 1 Vp-p
White (100%)
2.10 ± 0.18 Vp-p
H
Fig. 7-2-4.
CH1
CH2
6.5 ± 0.5 H (416 ± 32 µsec)
Fig. 7-2-3.
7-3
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