Sony MZ-R37 - Page 19

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CD RF LEVEL CHECK
Connection :
Adjustment Method :
1. Set the servo mode of the test mode (Mode : 000).
2. Press the ( key, and set the CD test adjustment mode
(Mode : 050) using the VOLUME + or – key.
3. Press the = or + key and move the optical pick-up to
the center circumference.
4. Insert a test CD (TDYS-1).
5. When the ( key is pressed, the CD EF balance adjustment
mode (Mode : 052) will be set after CD focus search adjust-
ment mode (Mode : 051).
6. When the ( key is pressed, the CD 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 ± 0.33 Vp-p.
digital voltmete
r
MAIN board
AP5117 (VCC)
AP574 (LDIO)
oscilloscope
MAIN board
AP538 (RF)
AP503 (VC)
8. Check that the voltage between AP5117 (VCC) and AP574
(LDIO) and at this time is below 40 mV.
9. Press the p key.
10. Exit the test mode.
1.1 ± 0.33 Vp-p
(RF waveform)
AP538 (RF)
IC701
CN501
IC501
IC901
AP574 (LDIO)
AP503 (VC)
AP5117 (VCC)
MAIN BOARD (SIDE B)
MAIN BOARD (SIDE A)
SP526 (TE)
Adjustment Location :