jedyne do czego mogę mieć zastrzeżenie to jakość zdjęć zawartych w przesłanej instrukcji serwisowej ponieważ są fatalnej jakości, praktycznie nieczytelne. tak poza tym jestem zadowolony to jest to czego szukałem.
Instrukcja jest OK. Schematy czytelne, opisane niektóre procedury.
Tekstowy podgląd strony 16 (kliknij aby zobaczyć)
The following is a simple adjustment method. � Simple Adjustment � Note: Since exact adjustment cannot be performed, remember the positions of the controls before performing the adjustment. If the positions after the primary adjustment are only a little different, return the controls to the original position.
8. Connect the oscilloscope to TP (TRACKING-Y) and TP (VC) on the CD board. 9. Adjust RV704 so that the waveform is as shown in the figure below. (tracking gain adjustment)
VOLT/DIV: 1 V TIME/DIV:2 ms 0V
� Incorrect Examples (fundamental wave appears)
low tracking gain VOLT/DIV: 1 V TIME/DIV: 2ms 0V
Procedure: 1. Keep the set horizontal. If the set is not horizontal, this adjustment cannot be performed due to the gravity against the 2-axis device. 2. Connect the oscilloscope TP (FOCUS-Y) and TP (VC) on the CD board. 3. Insert the disc (YEDS-18) in and close the lid for CD. 4. Put the set into test mode. (See page 14.) 5. Press the ( button. From focus searching, focus is turned ON while entering CLV drawing-in mode. Tracking and sled are turned OFF. 6. Press the ( button. [Both tracking and sled are turned ON.] 7. Adjust RV702 so that the waveform is as shown in the figure below. (Focus gain adjustment)
VOLT/DIV: 100 mV TIME/DIV:2ms 100 mV
high tracking gain high fundamental wave than for low gain VOLT/DIV: 1 V TIME/DIV: 2ms
0V
Note:
0V
VOLT/DIV: with the 10:1 probe in used.
10. Release test mode after adjustment is completed. � Inconnect Examples (DC level changes more than on adjusted waveform)
low focus gain VOLT/DIV: 100 mV TIME/DIV:2ms 250 mV 0V
Adjustment Location: CD board (See page 17.)
high focus gain VOLT/DIV: 100 mV TIME/DIV:2ms 100 mV 75 mV 0V
