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Complete service and operation manual. All schematics are there, all circuit boards AND add-on boards. Including exploded views ,component names and specifications. Also electrical and mechanical adjustment procedures are in this manual. This manual also covers the more advanced BR-S811E unit. Scan quality is fair and usable.
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High quality scan of original Service Manual. Everything´s fine!
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Good scan of the original service manual. All schematics and adjustment procedures are there. It helped me to fix a long lasting problem with the tracking circuitry. The manual also includes the supplementals 1,2 and 3. Included are; electrical schematic's , pcb layout's, mechanical drawing's and exploded views, disassembly manual and maintenance procedures. 236 pages.
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The Service Manual received was helpful. The electronic information is exactly what I needed.
I recomend all of my friends about this technical page.
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High quality scan of service manual. I am satisfied!
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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