A/D Adjustment (Composite); A/D Adjustment (Y/C) - Sony LMD-2140MD Service Manual

2-5. A/D Adjustment (COMPOSITE)

1. Input the NTSC 100% 8 color bar COMPOSITE signal
to the LMD-2140MD.
2. Press the COMPOSITE switch to accept the COM-
POSITE input signal.
3. Enter the Service menu, then select SIG → SIGNAL
LEVEL → AUTO ADJ. Perform the following
automatic adjustments.
. Y LEVEL
. PB LEVEL
. PR LEVEL
4. Confirm that the A/D AUTO ADJ has terminated
normally and the monitor screen is normally displayed.
5. Perform the adjustments of items 1-8 and 1-9 in table 3
shown below by repeating the above described
procedures.
COMPOSITE selection input
1-7 NTSC SETUP 0 100% 8 color bar signal
Y /G LEVEL
PB/B LEVEL Conditions :
PR/R LEVEL NTSC SETUP
1-8 PAL 100% 8 color bar signal
Y /G LEVEL
PB/B LEVEL Conditions :
PR/R LEVEL No specific conditions
1-9 NTSC SETUP 7.5 100% 8 color bar signal
Y /G LEVEL
PB/B LEVEL Conditions :
PR/R LEVEL NTSC SETUP
Table 3
LMD-2140MD

2-6. A/D Adjustment (Y/C)

1. Input the NTSC 100% 8 color bar Y/C signal to the
2. Press the Y/C switch to accept the Y/C input signal.
3. Enter the Service menu, then select SIG → SIGNAL
4. Confirm that the A/D AUTO ADJ has terminated
5. Perform the adjustments of items 1-11 and 1-12 in
Y/C selection input
1-10
NTSC SETUP 0 1-11
1-12
NTSC SETUP 7.5
LMD-2140MD.
LEVEL → AUTO ADJ. Perform the following
automatic adjustments.
. Y LEVEL
. PB LEVEL
. PR LEVEL
normally and the monitor screen is normally displayed.
table 4 shown below by repeating the above described
procedures.
NTSC SETUP 0 100% 8 color bar signal
Y /G LEVEL
PB/B LEVEL Conditions :
PR/R LEVEL NTSC SETUP
PAL 100% 8 color bar signal
Y /G LEVEL
PB/B LEVEL Conditions :
PR/R LEVEL No specific conditions
NTSC SETUP 7.5 100% 8 color bar signal
Y /G LEVEL
PB/B LEVEL Conditions :
PR/R LEVEL NTSC SETUP
Table 4
NTSC SETUP 0
NTSC SETUP 7.5
2-3