Alpine TME-M770, Руководство по обслуживанию

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TME-M770
Pattern Generator
+
-
+
-
Figure 6
Oscilloscope
(10STEP Signal : NTSC)
MONITOR Unit AV Interface Unit
TME-M770
GND
GND
TP521(GOUT)
AUX IN
Pattern Generator
+
-
+
-
Figure 7
Oscilloscope
(COLOR BAR Signal : PAL)
MONITOR Unit AV Interface Unit
TME-M770
GND
GND
TP522(ROUT)
AUX IN
Pattern Generator
+
-
+
-
Figure 8
Oscilloscope
MONITOR Unit AV Interface Unit
TME-M770
GND
GND
TP520(BOUT)
AUX IN
(COLOR BAR Signal : PAL)
(2) Adjustment Procedures
Step Operations Process Connection
Test Point/
P.W.Board
Coordinates
Adjustment
2 Confirm AUX terminal OPEN. Figure 1 to 4
3 VSS Voltage Adjustment Figure 1
Adjust by VR502 so that it may be set to
-16V+0.05, -0.05.
4 VGH Voltage Adjustment Figure 2
Adjust by VR501 so that it may be set to
+13V+0.05, -0.05.
5
HSYNC Frequency
Adjustment
Figure 3
Adjust by VR511 so that it may be set to
15.73KHz.
6 HSYNC Lo-period Adjustment Figure 4
Adjust by VR510 so that it may be set to
4.55uS+0.05, -0.05.
7
Input 10STEP Signal of NTSC from
AUX.
Figure 5, 6
9 VCOM Amplitude Adjustmen Figure 5
Adjust for 7.8V+0.1, -0.1 by DIAG Mode
(VCOM AMP) so that it may be set to
1 TP575 is connected to GND.
TP575
( 4-F )
TP530
(
4-F
)
TP523
(
4-F
)
TP557
(
3-B
)
TP557
(
3-B
)
8 DIAG Mode set up
Figure 5, 6
After pushing POWER Key for 2 to 3 seconds,
push UP Key, DOWN Key. ( DIAG Mode)
DC+5.8 to -2 amplitude.
TP532
(
4-F
)
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