Minolta Dimage Dimage Xt, Руководство по ремонту

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(2786)A 15
REPAIR GUIDE
0.5V
±
0.1Vp-p
○○○○○○
○○○○○○
○○○
○○○
A A A A A
CL410
(CH2)
CL416
(CH1)
A
CL410
(CH2)
CL416
(CH1)
Fig. 5 Fig. 5 Fig. 5 Fig. 5 Fig. 5
Fig. 6 Fig. 6 Fig. 6 Fig. 6 Fig. 6
3-1 3-1 3-1 3-1 3-1
3-2 3-2 3-2 3-2 3-2
Fig. 3 Fig. 3 Fig. 3 Fig. 3 Fig. 3
Fig. 4 Fig. 4 Fig. 4 Fig. 4 Fig. 4
2. LCD RGB Offset Adjustment (Brightness Control)
1) Connect the CH1 probe to CL413 and to the GND.
2) A waveform appears. Click the scroll arrow of "RGB
Offset" in the LCD section of the adjustment screen,
and select the number from the pop-up menu of "RGB
Offset" until the waveform of CL413 meets the standard.
Standard: 0.5V +/- 0.1V
■
Setup of Digital Storagescope DS-8706
1. Connect the CH1 and CH2 probes to Digital Storagescope
DS-8706.
2. Set the probe to the magnification "x1".
3. Set MENU of AUTO SET in the following orders.
1) Press the MENU button (3-1) to display the "f:MENU
SELECT".
2) Turn the FUNCTION dial (3-2) to select "MEASURE".
3) Press the FUNCTION dial.
4) Turn the FUNCTION dial to select "MEASURE(B)".
5) Press the FUNCTION dial.
The MEASURE(B) adjust window appears and "OFF" is
high-lighted.
6) Turn the FUNCTION dial to select "[6]T".
7) Press the FUNCTION dial.
8) Press the MENU button so the menu disappears.
The clip of CH2 probe's GND is not used.
Align the cursor with the center of the waveform as illus-
trated in Fig. 4.
■
Adjustment
1. LCD H AFC Adjustment (Horizontal Auto Frequency
Control)
1) Connect the CH1 probe to CL416 and to the GND,
and the CH2 probe to CL410. Two waveforms appear.
2) Click the scroll arrow of "H AFC" in the LCD section of
the adjustment screen, and select the number from the
pop-up menu of "H AFC" until the width-A reading
(from the rise of CL416's waveform to the fall of CL410's
waveform) meets the standard.
Standard: Width-A = 4.9 +/- 0.1 micro sec.
CL413