|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
;
I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
;
Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
;
It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
;
Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
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.
55
|
|
|
> |
|
