Quadro CTV-63N11 TXT, Руководство по обслуживанию

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Service Adjustments
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1. FACTORY MODE: 1. FACTORY MODE:
(1) Press the keys
P.P , P.P S.S and Keys on the menu
in turn to enter the factory mode,
press the key DISPLAY to exit. . This mode is usually for R&D and engineering department u
se
.
(2) Press digital keys to enter every adjust page, use PROG+/-
keys to pick adjust
items, use VOL+/- keys to adjust the value.
(3) Press DISPLAY to quit factory mode.
2.B+ VOLTAGE ADJUST 2.B+ VOLTAGE ADJUST
Measure C600A +point B+ + voltage,
adjust VR641 to get proper B + voltage
according to CRT assembly list requirement.
3. RF AGC VOLTAGE ADJUST 3. RF AGC VOLTAGE ADJUST
(1)Receive 294.25MHz, 60dBcolor bar signal.
(2)Enter factory mode and pr
ess digital key “4”.
(3) Measure tuner AGC point vol tage, adjust AGC item till the v oltage is 2.4V,or till
picture noise just disappears
4
、 FINE ADJUST FINE ADJUST
：
(1) FOCUS ADJUST (1) FOCUS ADJUST
a. Receive cross-hatch pattern signal
b. Set picture to
“
RICH” mode 。
c. Adjust FBT’s FOCUS knob till picture is clear
(2) SCREEN VOLTAGE ADJUST(KEY 0 ) (2) SCREEN VOLTAGE ADJUST(KEY 0 )
：
a.
a.
Set picture to
“
STANDARD
”
mode ， without signal input;
b. Enter factory mode and press digital key”0”,there will be a level bright line on the
scree.
c. adjust the level bright line till it just can be seen, press PROG+ key to enter other
menu
(3) HORIZON ADJUST(KEY 1 ): (3) HORIZON ADJUST(KEY 1 ):
Receive 50HZ monoscope PATTERN. Set TV to standard mode. Press KEY1 to enter factory mode
b. Adjust 5HSH(for 60Hz picture,it s is 6HSH)to set picture hori
zontal center to CRT horizontal center.
c. Receive 60HZ monoscope PATTERN, repeat above b item
(4) VERTICAL&YUV/RGB HORIZON ADJUST(KEY2 ): (4) VERTICAL&YUV/RGB HORIZON ADJUST(KEY2 ):
5VSL 50HZverticallinearity 5SCL 50Hz vertical sl ope
correction
5VSH 50HZverticalcenter 5VAM 50H zvertical size
6VSL 60HZ vertical linearity 6SCL 60HZ vertical slope
correction