-24-
[Adjustment Condition]
●
Input signal
Video signal .......................... 1.0Vp-p/75
Ω
terminated, 16 steps gray
scale, white 100% and black 0% pat-
tern (Composite video signal)
Computer signal .................... 0.7Vp-p/75
Ω
terminated, 16 steps gray
scale pattern (WXGA)
Component Video signal ....... 0.7Vp-p/75
Ω
terminated, 16 steps gray
scale, white 100% and black 0% pat-
tern (480i format)
RGB Video signal .................. 0.7Vp-p/75
Ω
terminated, 16 steps gray
scale, white 100% and black 0% pat-
tern (480p format)
●
Picture control mode ............... “STANDARD” mode unless otherwise noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering to the service mode and adjusting the service
data.
Circuit Adjustments
CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow-
ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of perfor-
mance and product safety.
Electrical Adjustments
White 100%
Black 100%
16 steps gray scale pattern
x
Fan Voltages adjustment
1. Enter the service mode.
2. Connect a digital voltmeter to test point
A
(+) and
chassis ground (-). (6 test points are provided for this
adjustment, perform all the voltage adjustments in
the table below.)
3. Select group no. “
140
”. Select item no.
B
and change
data value to adjust the voltage to be
C
±0.05V, and
select item no.
D
and change data value to adjust
the voltage to be
E
±0.05V.
4. Repeat step 2 to 3 for the remaining test points in
the table below.
After replacing the Power Board readjust the Output
voltage adjustment as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (-) of
K6A
.
2. Adjust the voltage by using
VR601
as following.
AC Input
Reading
230V
370V ±2V
Caution:
Be sure to connect the lamp when taking this adjust-
ment.
z
Output Voltage adjustment
* This adjustment is not required even if the power
board is replaced because this adjustment is carried
out before parts shipment.
Test Point A
Item B
Voltage C
Item D
Voltage E
TPFN3
0
14.0
1
5.0
TPFN6
4
14.0
5
5.0
TPFN4
6
14.0
7
5.0
FAN1
8
14.0
9
5.0
FAN2
10
14.0
11
5.0
WARNING : USE UV RADIATION EYE AND SKIN
PROTECTION DURING SERVICING.
CAUTION:
To prevent suffer of UV radiation, those adjustment
must be completed within 25 minutes.
Summary of Contents for PLV-75 Series
Page 68: ... 68 IC Block Diagrams AD9882 AV A D IC8201 AD8183 AD8185 Selector IC3001 IC2002 ...
Page 69: ... 69 IC Block Diagrams BA7078 Sync Separator IC3007 BH3540 Audo Amplifier IC1652 ...
Page 70: ... 70 IC Block Diagrams L3E06110 S H IC501 IC531 IC561 FA5502 P F Control IC601 ...
Page 72: ... 72 LB1645 Motor Drive IC1631 M62320 I O Expander IC5871 IC5872 IC Block Diagrams ...
Page 73: ... 73 M62399 D A IC1501 IC7801 M62393 D A IC281 IC Block Diagrams ...
Page 74: ... 74 PW388 Scan Converter System COntrol IC301 SP3232 RS 232C Driver IC3801 IC Block Diagrams ...
Page 76: ... 76 IC Block Diagrams TE7780 I O Expander IC4801 ...
Page 114: ... MB4A Jul 2006 DC 350 Printed in Japan SANYO Electric Co Ltd ...
