![(RF waveform)](/images/new-backgrounds/26138/2613865x1.webp)
Connection :
Oscilloscope
MAIN board
TP5980 (TE)
AP5430 (VC)
Adjusting Method :
1.Set the servo mode of the test mode (Mode : 000).
2.Press the Ó key, and set the low reflection CD playback adjust- ment mode (Mode : 040) using the volume + and – keys.
3.Load any MO disc available on the market.
4.When the Ókey is pressed, the low reflection CD playback EF balance adjustment mode (Mode : 042) will be set after low re- flection CD focus search ON (Mode : 041).
5.Press the P key to perform automatic adjustment, and check
that the traverse waveform is symmetrical at the top and bottom.
(Traverse Waveform)
A
0V |
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| C |
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B
Specification : A = B, C >=
6.Check that the traverse level at this time is above
7.Press the p key.
8.Exit the test mode.
Connection :
Oscilloscope
MAIN board
AP5500 (RF)
AP5430 (VC)
Digital voltmeter
MAIN board
AP5117 (VCC)
AP574 (LDIO)
Adjusting Method :
1.Set the servo mode of the test mode (Mode : 000).
2.Press the Ókey, and set the CD playback adjustment mode (Mode : 050) using the volume + and
3.Press the =and +keys and move the optical pickup to the center circumference.
4.Load a CD test disc
5.When the Ókey is pressed, the CD EF balance adjustment mode (Mode : 052) will be set after CD focus search ON (Mode : 051).
6.When the Ó key is pressed, the ABCD level adjustment mode (Mode : 053) is set.
7.Press the P key to perform automatic adjustment, and check that the RF level is 1.1
(RF waveform)
Connection :
Oscilloscope
MAIN board
TP5980 (TE)
AP5430 (VC)
Adjusting Method :
1.Set the servo mode of the test mode (Mode : 000).
2.Press the Ókey, and set the CD playback adjustment mode (Mode : 050) using the volume + and – keys.
3.Press the =and +keys and move the optical pickup to the center circumference.
4.Load a CD test disc
5.When the Ókey is pressed, the CD playback EF balance adjust- ment mode (Mode : 052) will be set after CD focus search ON (Mode : 051).
6.Press the P key to perform automatic adjustment, and check that the traverse waveform is symmetrical at the top and bottom.
(Traverse Waveform)
A
0V |
|
| C |
|
| ||
|
| ||
|
| ||
|
|
|
|
B
Specification : A = B, C >= 1.0
7.Check that the traverse level at this time is above
8.Press the p key.
9.Exit the test mode.
1.1 – 0.3
8.Check that the voltage between AP574 (LDIO) and AP5117 (VCC) and at this time is below 40mV.
9.Press the p key.
10.Exit the test mode.