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Downloaded the Service manual OK of the Technics Piano and have now repaired it and its going fine. Excellant; thank you for the fine servce. A.M
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This site is working fine! Did buy a manual for SX-EX25L and after a while I could download it and fix the problem. Nice and easy!
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Complete manual as pdf-file in very good quality. Very helpful and fast availability.
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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
PDR-L77
6.5.2 M-S Mix Ratio Adjustment
Test Point Adjustment Point Adjustment Value Symptom when out of adjustment [Procedure]
(1) Press the AUTO/MANUAL button so that "02 F3" appears on the FL display. (2) Press the FINALIZE button for focus-in. (3) Press the PLAY button for CAV-servo spindle kick (the status where the spindle rotates with the focus servo on and tracking servo off). (4) Adjust with the RECORD button and the REC MUTE button until the value to be reached is obtained. (5) Press the SET button to register the adjustment. Once the adjustment is registered with the SET knob, "D.VOL" on the FL display lights. (6) Press the STOP button to stop the unit. Note: For adjustment, use the following circuits.
39k� TE 39k� MPP 10 : 1 VC 0.001µF 10:1 probe CH2 0.001µF 10 : 1 CH1 Oscilloscope
CN102 - pin 4 (TE) and pin 3 (MPP) RECORD button and REC MUTE button
Test Disc
STD-903
Adjust until the value of the output signals from pin 4 (TE) and pin 3 (MPP) of CN102 are the same, or the differential output of these signals is minimal. Sound broken, record characteristics deteriorate
Note: Adjustment must be done around mid-radius on a disc.
6.5.3 Tracking Offset Adjustment
Test Point Adjustment Point Adjustment Value
CN102 - pin 4 (TE) RECORD button and REC MUTE button 0 mV ± 10 mV
[Procedure]
(1) Press the AUTO/MANUAL button so that "03 F6" appears on the FL display. (2) Adjust with the RECORD button and the REC MUTE button until the above adjustment value to be reached is obtained. (3) Press the SET button to register the adjustment. Once the adjustment is registered with the SET button, "D.VOL" on the FL display lights.
TE 10 : 1 VC 10:1 probe Oscilloscope
Note: Perform the adjustment in Stop mode. This adjustment is possible with the low-pass filter used in adjustment 5 above attached.
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