Pioneer PDP-505HD Service Manual page 77

Procedure Adjusting Item
Preparation
setting
1) RAMP signal
2) White Signal
3) RAMP signal
4) White Signal
8
White Balance
adjustment
(Reference) Adjustment values using the Minolta color-difference meter (CA-100)
MASK Level
9
adjustment
Input signal Adjusting Point
REFERENCE 1
in Factory mode
CONTRAST...."1" Key
BLACK LVL. ...."2" Key
REFERENCE 1
in Factory mode
R LOW......... "10" Key
G LOW........ "11" Key
B LOW......... "12" Key
(14 IRE: Gray)
REFERENCE 1
in Factory mode
R HIGH........... "7" Key
G HIGH........... "8" Key
B HIGH........... "9" Key
SUB VIDEO mode
in Factory mode
(56 IRE: Gray)
ACL. SW
........."BS5" Key
REFERENCE 1
in Factory mode
Skin color
COLOR..........."3" Key
TINT ..............."4" Key
20% Window-Step signal (–3dB)
White Balance
80% Window-Step signal (–3dB)
Skin Color Window -chroma signal
DRIVE ADJ mode
in Factory mode
R SIDE LEVEL
........."10" Key
G SIDE LEVEL
........."11" Key
B SIDE LEVEL
........."12" Key
Any input
DRIVE ADJ mode
in Factory mode
R FULL LEVEL
........"BS5" Key
G FULL LEVEL
........"BS7" Key
B FULL LEVEL
........"BS9" Key
Adjusting Method
Set CONTRAST to "128" and BLACK LVL. to "128".
LOW LIGHT adjustment
1) Observe the signals at TP terminals R: K2423, G: K2424, B: K2425,
of VIDEO ASSY. Adjust with the keys on the remote control unit, so
that the black level (0 IRE) of the signal is within the DC voltage range
of "1.85V ± 0.05V".
2) Adjust with the keys on the remote control unit, so that the image on
the screen becomes a little greenish white (T=8500k, dev.=0.005uv).
HIGH LIGHT adjustment
3) Set P. ACL. SW OFF.
Observe TP terminals R: K2423, G: K2424, B: K2425 of VIDEO
ASSY. Adjust with the keys on the remote control unit, so that the
white level (100 IRE) is within the DC voltage range of "2.8V ±
0.05V".
4) Adjust with the keys on the remote control unit. so that the image on
the screen becomes a little greenish white (T=8500k, dev.=0.005uv).
Convergence adjustment
5) Repeat procedure 2) and 4) to converge the white balance.
6) After the adjustment, set ACL. SW ON.
Color balance adjustment
After adjusting the white balance, check the skin color of figures in LD
still pictures. If the color is not natural, adjust it with the keys on the
remote control unit.
NTSC
x 291
y 307
Y 3.9
x 291
y 307
Y 87.2
x 466
y 388
Side mask Color/Level adjustment
Set to the indicated value with the keys on the remote control unit.
(refer to DRIVE ADJ Mode)
Full mask Color/Level adjustment
Set to the indicated value with the keys on the remote control unit.
(refer to DRIVE ADJ Mode)
PDP-505HD
HD PC
291 291
307 307
2.9 2.5
291 293
307 301
87.2 64.3
428 ––––
377 ––––
77