6. Confirm the red segment is not displayed on the Error meter of R1
and R2.
7. If it is not, adjust D22 RP PLL PHS R and D23 RP PLL SL R and
return to the step 5.
6.6.12. ADC Level Coarse Adjustment
Board
Specification
Test Point
Adjustment Point
Input Signal
Mode
Tape
M.EQ
1. Scope CH1 : TP1(H2)
CH2 : TP2(H3)
2. Open the Service Menu and select the item B00 EQ ED ADJUST.
3. Playback a 25M Master Tape.
4. Adjust B37 ADC LEVEL L so that the noise level is minimized as
shown in the following figure.
5. Change the connection of scope CH1 to the TP2(H2) from TP1(H2).
6. Adjust B38 ADC LEVEL R so that the noise level is minimized as
shown in the following figure.
7. Escape the EQ ED ADJUST Menu and select the D00 EQ DP
ADJUST Menu.
8. Adjust D38 ADC LEVEL R so that the noise level is minimized as
shown in the following figure.
9. Change the connection of scope CH1 to the TP1(H2) from TP2(H2).
10. Adjust D37 ADC LEVEL L so that the noise level is minimized as
shown in the following figure.
Note:
Confirm that the DC level is not held around ~ 2.5V.
RF EQ (H3) XCAN(H2)
TP1,TP2(H2) TP2(H3)
Service Menu
Playback
VFM3580KM (Color Bar
Portion)
Oscilloscope
108