When a general remote commander is not used:
1.Solder lead wires to TP (DVDD) and TP (TOFF) on the BD board severally.
2.Connect the oscilloscope to TP (TE) of the BD board.
3.Press the I/u button and turn ON the power supply.
4.Open the front cover, and press the [PLUSÊONE] button.
5.Set the disc
6.Close the front cover, and chuck the disc.
7.Playback the fifth track of the disc.
8.
9.Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following :
A/B x 100 = less than ± 10%
RF PLL Free-run Frequency Check
Procedure :
1. Connect the frequency counter to TP (PCK) of the BD board.
frequency counter
BD board
TP (PCK)
2. | Press the | I/u | button and turn ON the power supply. |
3. | Open the front cover, and press the [PLUSÊONE] button. | ||
4. | Set the disc | ||
5. | Close the front cover, and chuck the disc. | ||
6. | Playback th e fifth track of the disc. | ||
7. | Confirm that reading on frequency counter is 4.3218 MHz ± |
Traverse waveform
Center of the waveform
30 kHz. |
B
About RV601 on the MAIN board
RV601 of the MAIN board requires no adjustments. Please note that it should be dixed to mechanical center position when you
0 V
A (DC voltage)
moved and do not know origin position.
level: 1.3 ± 0.5
10.Disconnect the lead wire
Traverse waveform
0 V
Tracking servo |
|
|
| Tracking servo |
OFF |
|
|
| ON |
|
|
C(DC
voltage)
11.Turn OFF the power, and remove the lead wire connected at step 1.