Rgb Test Signal Level Adjustment; Rgb A/D Input Level Adjustment 1 - Panasonic AJ-D400P Service Manual

5-4. RGB Test Signal Level Adjustment

BOARD Pre Process
SPEC. A = 666 ± 10mV
TEST TP2 (R), TP202 (G), TP402 (B)
ADJUST VR3015 (R), VR3013 (G), VR3014 (B)
(Sync board)
MODE Test Signal
M.EQ Oscilloscope, EVR
1. Set the EVR to [1E][22][00].
2. Monitor the TP2 and adjust the VR3015 (R) so that
the level A is within specification.
3. Monitor the TP202 and adjust the VR3013 (G) so
that the level A is within specification.
4. Monitor the TP402 and adjust the VR3014 (B) so
that the level A is within specification.
TP3002 (R)
TP3202 (G)
TP3402 (B)

5-5. RGB A/D Input Level Adjustment 1

BOARD
TEST
ADJUST
MODE
M.EQ
1. Set the EVR to [1E][23][00]. (R ch is selected.)
2. Adjust the VR2 to increase the A/D level And then
stop adjusting just before the A portion is uneven.
3. Set the EVR to [1E][24][00]. (G ch is selected.)
4. Adjust the VR202 to increase the A/D level And
then stop adjusting just before the A portion is
uneven.
5. Set the EVR to [1E][25][00]. (B ch is selected.)
6. Adjust the VR402 to increase the A/D level And
then stop adjusting just before the A portion is
uneven.
A
Pre Process
VIDEO OUT (75 W terminated)
VR2 (R), VR202 (G), VR402 (B)
Test Signal
Waveform Monitor, EVR