Sony MZ-R55, Service Manual

Page: 18 / 129

– 18 –
LOW REFLECTION CD TRAVERSE ADJUSTMENT
Connection :
Adjustment Method :
1. Set the ser
vo mode of the test mode (Mode : 000).
2. Press the
(
ke y, and set the lo w reflection CD test adjustment
mode (Mode : 040) using the VOLUME + or – ke y.
3. Inser t an y MO disk a vailab le on the market.
4. When the
(
ke y is pressed, the lo w reflection CD FE balance
adjustment mode (Mode : 042) will be set after lo w reflection
CD focus search adjustment mode (Mode : 041).
5. Press the
P
ke y to perf orm automatic adjustment, and c hec k
that the tra ver se wa veform is symmetrical at the top and bottom.
6. Chec k that the tra ver se le vel at this time is abo ve 0.9 Vp-p.
7. Press the
p
ke y.
8. Exit the test mode.
Adjustment Location : See page 19.
oscilloscope
MAIN board
TP5980 (TE)
AP5430 (VC)
(Traverse waveform)
A
B
C
Specification : A = B, C 0.9 Vp-p
0 V
>
=
CD TRAVERSE ADJUSTMENT
Connection :
Adjustment Method :
1. Set the ser
vo mode of the test mode (Mode : 000).
2. Press the
(
ke y, and set the CD test adjustment mode (Mode
: 050) using the VOLUME + or – ke y.
3. Press the = or + ke y and mo ve the optical pic k-up to the
center circumference.
4. Inser t a test CD (TD YS-1).
5. When the
(
ke y is pressed, the CD FE balance adjustment
mode (Mode : 052) will be set after CD focus search adjustment
mode (Mode : 051).
6. Press the
P
ke y to perf orm automatic adjustment, and c hec k
that the tra ver se wa veform is symmetrical at the top and bottom.
oscilloscope
MAIN board
TP5980 (TE)
AP5430 (VC)
7. Chec k that the tra ver se le vel at this time is abo ve 1.0 Vp-p.
8. Press the
p
ke y.
9. Exit the test mode.
Adjustment Location : See page 19.
(Traverse waveform)
A
B
C
Specification : A = B, C 1.0 Vp-p
0 V
>
=