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There are currently no product reviews.
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Good quality, clear diagrams. Exactly what I needed.
 ;
Good product. All the information is invcluded, but due to the complexity of the amplifier, it still is difficult to get it to operation again.
;
Very professional seller; very fast, accurate and rielable service.
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great works fine, got the manual on mail within a day
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First class Service,
best quality, come again
Thank You.
vac
E-F Balance Check
oscilloscope BD board TP (TEO) TP (VC)
Adjustment Location [BD BOARD] � Component Side �
RF RV101 IC101 RV103 TEO FEO VC RV102 TEI FEI FOK
Procedure: 1. Connect a lead wire to the test point TP501 on Display board. 2. Connect oscilloscpe to test point TP (TEO) on BD board. 3. Turned power switch on, load the disc (YEDS-18). 4. 5. 6. 7. Connect a lead wire connected to the test point TP501 to ground. Press the TIME button. (TRACKING SERVO OFF) Playback the disc (YEDS-18). Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0Vdc, and check this level.
Traverse waveform IC104 A 0V B
PCK GND
level: 300 ± 100 mVp-p
Specified level: �
A�B x 100 = less than ± 7% 2 (A + B)
[DISPLAY BOARD] � Conductor Side �
� A + B = 300 ± 100 mVp-p 8. Remove the lead wire connected in step 1. Focus/Tracking Gain Adjustment (RV102, RV103) This gain has a margin, so even if it is slightly off. There is no problem. Therfore, do not perform this adjustment. Please note that it should be fixed to mechanical center position when you moved and do not know original position.
TP501
� 10 �
IC102
IC501
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