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Oscilloscope
MAIN board
TP5980 (TE)
AP5430 (VC)
A
B
C
Oscilloscope
MAIN board
TP5980 (TE)
AP5430 (VC)
AP501 (2.8V)
AP574 (LD01)
MAIN board
Digital voltmeter
1.0
±
0.1Vp-p
CD RF Level Check
Connection:
Adjusting Method:
1. Enter the servo test mode (mode: 000) of the adjustment mode
of the test mode.
2. Press the
(
key, then press the key and VOLUME
– key to enter the CD test mode (mode: 050).
3. Press the
=
key and the
+
key to move the optical pickup
to almost center of a CD disc.
4. Insert a check disc (CD) TDYS-1.
5. Press the
(
key to enter the CD EF balance adjustment mode
(mode: 052) after passing through the CD focus search ON
(mode: 051).
6. Press the
(
key to enter the CD ABCD level adjustment mode
(mode: 053).
7. Press the
P
to perform the automatic adjustment and check
that the RF level is 1.0 ±0.1 Vp-p.
(RF waveform)
8. Check that the voltage between AP574 (LD01) and AP501 (2.8
V) is 44 mV or less.
9. Press the
p
key.
10. Exit the test mode.
Specification: A = B, C 1.6 Vp-p
CD Traverse Adjustment
Connection:
Adjusting Method:
1. Enter the servo test mode (mode: 000) of the adjustment mode
of the test mode.
2. Press the
(
key, then press the key and VOLUME
– key to enter the CD test mode (mode: 050).
3. Press the
=
key and the
+
key to move the optical pickup
to almost center of a CD disc.
4. Insert a check disc (CD) TDYS-1.
5. Press the
(
key to enter the CD EF balance adjustment mode
(mode: 052) after passing through the CD focus search ON
(mode: 051).
6. Press the
P
key to perform the automatic adjustment and check
that the traverse waveform is vertically symmetrical.
(Traverse waveform)
7. Check that the traverse level is 1.6 Vp-p or more.
8. Exit the test mode.