Good manual. It is complete and of high quality, both text and graphics. The schematics are with the original big size, so it can be viewed or printed without any loss of resulution and sharpness.
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Text excerpt from page 22 (click to view)
Note: Clear RF signal waveform means that the shape ��� can be clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV TIME/DIV : 500ns
Procedure: 1. Connect oscilloscope to TP (TEO) and TP (VC) board. 2. Turned Power switch on. 3. Load a disc (YEDS-18) and playback the number five track. 4. Press the hH button. (Becomes the 1 track jump mode.) 5. Confirm that the level B and A (DC voltage) on the oscilloscope waveform.
1 track jump waveform
Center of waveform B A (DC voltage) 0V
level=1.3±0.6Vp-p
Symmetry
Specification level: A x 100=less than ±22% B 6. After check, remove the lead wire connected in step 1.
RF PLL Free-Run Frequency Check Procedure : 1. Connect frequency counter to test point (XPCK) with lead wire.
BD board TP (XPCK) frequency counter + �
2. 3.
Turned Power switch on. Put the disc (YEDS-18) in to play the number five track. Confirm that reading on frequency counter is 4.3218MHz.
