Kenwood LZ-702W, Руководство по обслуживанию

Страница: 14 / 38

LZ-702W
14
γ
Curve adjustment procedure
Adjustment Adjustment Adjustment Adaptation
item requirement waveform value/STEP
V_MUTE: H
q
RGB_AM
BRIGHT: 128 Vrgba: 1.87V
PLITUDE
GAMMA1: 255 LCD G (b-a)
GAMMA2: 255 step: 2
CONT-RGB2: 255
V_MUTE: L Vbri: 0.94V
w
BRIGHT
GAMMA1: 255
LCD G
(a+Vbri)
GAMMA2: 255 step: 2
CONT-RGB2: 255
V_MUTE: L Vga1: 1.19V
e
GAMMA1 GAMMA2: 255 LCD G (a+Vga1)
CONT-RGB2: 255 step: 3
GAMMA2: 255
Vcon2: 1.58V
r
CONT-RGB2
V_MUTE: L
LCD G (a+Vcon2)
step: 8
Vga2: 1.7V
t
GAMMA2 V_MUTE: L LCD G (a+Vga2)
step: 8
Vsbr: 0.02V
y
SUB-BRIGHT_R V_MUTE: L LCD R
∗
1
(d+Vsbr)
step: 6
Vsbb: 0.02V
u
SUB-BRIGHT_B V_MUTE: L LCD B
∗
2
(d+Vsbb)
step: 6
COM_
Vcoma: 1.60V
i
AMPLITUDE
V_MUTE: L VCOM IN (c+d)
step: 2
∗
1 Make R smaller than G by 0.02V.
∗
2 Make B smaller than G by 0.02V.
●
PAL Demodulated axle adjustment (X35-)
This adjustment is done after auto adjustment is finished on
Gamma (Chroma_Auto)
Condition
Input signal: Color bar (PAL signal)
Remote controller operation method
: Final selection
DIRECT : End
7 : Adjustment item switching
8 : Adjustment value UP
0 : Adjustment value DOWN
Adjustment method
q
Press Chroma Func key,in the test mode menu screen.
Color bars will be displayed on the screen.
w
HD: Put the trigger with TP3. TP17 (VR) located close to
pin 33 of IC103 TP21 (VB) located closed to pin 35 of
IC103 measure and adjust as shown below.
e
First, monitor R-output, and change the TINT values to
adjust using [UP/Down] keys of remote controller. so that
oscillation width per each horizontal scanning period would
match. (Refer to Fig. 1 and Fig. 2)
∗
In Fig 1, the oscillation width of R-output and B-output
per horizontal scanning period is not matched. In Fig. 2,
the oscilliation width of R-output per horizontal scanning
period is matched.
r
After adjusting, press the final selection key.
∗
After pressing the final selection key, the OSD in the up-
per left of the screen will change to purple.
t
After R-output adjustment, press Adjustment Item switch
key, and switch the adjustment item to Phase. Monitor B-
output, and change the Phase value using [UP/Down] keys
of remote controller so that horizontal scanning period
would match. (Refer to Fig. 2 and Fig. 3)
∗
In Fig 2, oscillation width of B-output per horizontal scan-
ning period is not matched. In Fig. 3, oscillation width of
B-output per horizontal scanning period is matched.
y
After adjusting, press the final selection key.
∗
After pressing the final selection key, the OSD in the up-
per left of the screen will change to purple.
u
Then, press End key. If “White_OK” is displayed, the ad-
justment is competed. When you press End key one more
time, it exits from Chroma_Func Adjustment.
Fig. 1 (Ch1) Color Bars
(Ch2) VB output measurement point, VR output mea-
surement point
ADJUSTMENT
Ch1: Input
signal
Ch2:
B output
Ch3:
R output