|
|
|
Who's Online
There currently are 5474 guests online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Complete manual, the good quality of reproduction allows enlarged print-out of the schematic diagram in the size it probably had in the original print edition and which is necessary for practical use.
;
The service manual was complete and the components on the drawings very good visible.
;
downloaded next day , manual is very helpful , fast and easy
 ;
This Service Manual was exactly what I needed to repair my Philips TV. The purchase was convenient and I received the manual at the same day I paid for it.
;
Very pleased with the whole process. Great commication and very easy instructions to order and to download the manual.
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
|
|
|
> |
|
