Philips TH-P19A, Service Manual

Page: 7 / 42

7
TH - P19A
Electrical Instructions
D is p la y Adj ust m ent
1 P re - c h ec k an d access to f actor y m o d e
* Ch ec k CPU v ersion , i f it ’ s not ri gh t v ersion , t h en I SP ne w one .
Ag in g 1 h our at least b e f ore a dj ust m ent .
P ro g ra mm in g analo g DDC d ata into M onitor .
2 A uto color a dj ust m ent
App l y a 1280x1024 80kHz/75Hz si g nal w it h wh ite p attern .
S et b ri gh tness at 100% an d contrast at 50%.
U sin g auto color , let scaler cali b rate o ff set 1, o ff set 2 an d g ain itsel f.
* Ch ec k t h e 64-g ra y le v el is d istin g uis h a b le .
3 C olor te mp erature a dj ust m ent
App l y a 1280x1024 80kHz / 75Hz si g nal w it h wh ite p attern .
S et b ri gh tness control at 100%, an d contrast control at 50%.
Adj ust t h e R.G. B g ain in f actor y settin g to reac h s p ecial color te mp erature on center o f screen .
U se M inolta CA-110 f or color coor d inates an d lu m inance c h ec k
Th e 1931 C IE c h ro m aticit y (X, Y) co - or d inates s h all b e :
H o w e v er , k ee p lu m inance is >= 180 nits in t h e center o f t h e screen w it h O ri g inal C olor m o d e .
4 NVRAM(24C16) D e f ault V alues
S u b_B ri : 0 255
S u b_C on : 78 128 178
9300
°
K 6500
°
K
x ( center ) 0.283
±
0.005 0.313
±
0.005
y ( center ) 0.297
±
0.005 0.329
±
0.005