Sony TRINITRON BVM-14G1A - Page 79

5-7
Equalize
Level difference: 0 ±5 mV
Equalize
Level difference: 0 ±5 mV
DRIVE REF pulse
Fig. 5-15
5. BIAS REF Adjustment
Note: The following adjustment menu is under the BK
BOARD menu of the MAINTENANCE menu.
BIAS REF
Perform this adjustment only for “1. COMPONENT SMPTE/
EBU-N10”.
1. Input the 20 IRE all-white signal.
2. Connect the oscilloscope to TP506 and V period.
3. As shown in Fig. 5-14, adjust the BIAS REF data so that
the all white peak level and BIAS REF pulse level of the
signal become equal.
All-white peak: 140 mV
Fig. 5-14
6. DRIVE REF Adjustment
Note: The following adjustment menu is under the BK
BOARD menu of the MAINTENANCE menu.
DRIVE REF
Perform this adjustment only for “1. COMPONENT SMPTE/
EBU-N10”.
1. Input the 100 IRE all-white signal.
2. Connect the oscilloscope to TP506.
3. As shown in Fig. 5-15, adjust the DRIVE REF data so
that the all white peak level and DRIVE REF pulse level
of the signal become equal.