Chroma/Phase Adjustments - Panasonic BT-H1700BMC Service Manual

1.10.9 CHROMA/PHASE ADJUSTMENTS

CHROMA/PHASE ADJUSTMENTS (COMPONENT)
Measuring Instruments
Card (Slot)
Test Points
Adjustment Points
Notes:
•
Perform the following adjustments after completing
the Contrast adjustment.
•
Set the CHROMA and PHASE data in the Setup Menu
to "00".
•
The value adjusted at the SR adjustment becomes the
reference value for the following adjustments. When
this data is changed, it is required to re-adjust the
data of all of the adjustment signals (Component,
NTSC and PAL). When re-adjusting the 1080/60i signal,
use the SI.
(1) Apply the 1080/60i component color bar signal to INPUT A.
(2) Set the CHROMA and PHASE potentiometers on the front
panel to the center click positions.
(3) Connect the oscilloscope across TP-47B and TP-GND.
(4) Adjust SR03 in the Service Menu to set the level difference
between waveforms 1 and 4 in the figure on the right to 0 V
± 2 V.
(5) Adjust SR04 to set the level difference between 1 and 3 to
0 V ± 2 V.
(6) Vary the adjustment signal and adjustment data, and re-
perform adjustments in steps 1 to 5 above (see Table 5).
Adjustment
Signal
COMMON
1080/60i
1080/50i
1080/24psF
720/60p
720/50p
480/60i
576/50i
480/60p
576/50p
ELE-40
Signal generator (Color bar signal)
Oscilloscope
Component/RGB Input Card (Slot 1)
TP-47B [CRT SOCKET PWB]
TP-GND [CRT SOCKET PWB]
S*03 (Chroma), S*04 (Phase) [Service Menu]
Adjustment Data
Chroma Phase
SR03 SR04
SI03 SI04
SK03 SK04
SL03 SL04
SM03 SM04
SN03 SN04
SE03 SE04
SF03 SF04
SG03 SG04
SH03 SH04
Table 5
3
2 4
1