Technical Specs

8
(5) H.V. Adjustment:
(A) MODE: 86kHz 85Hz
(B) PATTERN: ALL BLACK(Brightness cut off)
(C) Adjustment: Adjust VR302 to make the high voltage has 25.5± 0.2KV
(6) H-Free run Adjustment:
(A) MODE: 30kHz
(B) PATTERN: ALL WHITE
(C) Adjustment: a. Tp6 connect 1uF/50V E-Cap to Ground.
b. Adjust VR306 to take H o/p Frequency is 30kHz or the screen stand up.
c. Take away E-Cap.
(7) X-RAY test:
(A) MODE: 86kHz 85Hz
(B) PATTERN: CROSSHATCH(Brightness just cut off)
(C) Test: a. Make TP1 and TP2 to be short circuit confirm the X-ray reactive.
b. Reset the power.
(8) H-CENTER adjustment
(A) MODE: 86kHz 85Hz
(B) PATTERN: CROSSHATCH
(C) Adjustment: Adjust VR301 to make raster is centrally on CRT
(9) H-size adjustment:
(A) MODE: 37.5kHz 640*480(75)
(B) PATTERN: CROSSHATCH
(C) Adjust H-SIZE, OSD set to Max, then adjust VR305 to make the full scan.
(10) MODE 11 Pre-Adjustment:
(A) MODE: 79.9kHz 1280*1024(75)
(B) PATTERN: CROSSHATCH
(C) Adjust V-CENTER, H-SIZE, V-SIZE, PINCUSHION, TRAPEZOID, H-PHASE to make Picture
Position Center and Picture Size 310*232mm.
(11) WHITE BALANCE adjustment
(A) MODE: 69kHz 1024*768(85)
(B) PATTERN: ALL BLACK
(C) Adjustment: a. WARM UP 30 min.
b. Make External Degauss.
c. Factory mode R-BIAS/G-BIAS/B-BIAS set to 20% data.
d. Adjust SCREEN VR (FBT) to 500± 10V
e. CUT OFF Adjustment: Video signal off (0Vp-p), bright set to MAX, adjust
VR304 VR (G1), at the brightness 1~1.5FL.(4.2± 0.8 cd/m² )
f. Adjust R-BIAS, G-BIAS, B-BIAS to make x=283± 5, y=297± 5, with
readjusting G2 to keep the brightness between 1~1.5FL(4.2± 0.8 cd/m² ).