PG-M20S (serv.man34). Change of parts - Sharp Projector Technical Bulletin (repair manual)

pg-m20s (serv.man34) technical bulletin
Model
PG-M20S (serv.man34)
Pages
10
Size
1.59 MB
Type
PDF
Document
Technical Bulletin
Brand
Device
Projector / Change of parts
File
pg-m20s-sm34.pdf
Date

Read Sharp PG-M20S (serv.man34) Technical Bulletin online

EEL289
Sharp Electronics (UK) Ltd., Technical Services Group
REF NO
DESCRIPTION
OLD PARTS
NEW PARTS
PRICE
CODE
KEY UNIT
C2009
470 50V Ceramic
-
VCCCCY1HH471JY
AA
R2009
100 1/16W Metal
Oxide
VRS-CY1JF100J
VRS-CY1JF101JY
AA
FORMATTER UNIT
C9523
33 4V Electrolytic
VCEAPF1CW106M
VCAAPC0GJ336MY
AE
INPUT UNIT
R3720
1k 1/16W Metal
Oxide
VRS-CY1JF102JY
AA
POWER UNIT
Connecting cord
QCNW-1869TAZZ
AD
BETWEEN
POWER AND
INPUT UNIT
Connecting cord
-
QCNW-B547WJZZ
AE
Note: Refer to technical report LV-080 or Bulletin title “Upgrade for the improvement of
performance and reliability”.   <see following pages>
CHANGE OF PARTS
(Changing parts list for T/R of LV-080)
TECHNICAL BULLETIN
Date:
12 December 2003
Model: PGM20S
Ref.:
006
Colour: White
Page:
1 of 1
LV-080
Sharp Electronics (UK) Ltd., Technical Services Group
Model 
PG-M20X, PG-M20S, PG-M25X
Phenomenon
• No picture
• Lamp does not light up or it goes off.
• Locks up, etc.
For more details, refer to the flowchart on the page 3 of this technical report.
Servicing
In the above model, the following upgrade has been implemented to improve performance
and reliability. When you service/repair this model, please perform the following
countermeasures to the unit.
No
Countermeasure
Take the steps according to
(Effective models)
1
• Add a 100k. resistor (VRS-CY1JF104J ) in
parallel to R7421.
• Adjust the voltage of 2.5V line to 2.62±0.02
with VR7401.
• Update the firmware of unit
*1
Technical report LV-064
Revised
(PG-M20X/S, PGM-25X)
2
• Check the colour wheel if it is defective. If
so, replace it with the improved type
(RMOTBA002WJZZ)
*2
, then
perform the electrical adjustments of CW
index and White balance.
Technical report LV-075
(PG-M20X/S, PGM-25X)
3
• Change R2009 to 100. (VRS-CY1JF101JY).
• Add 470 pF (VCCCCY1HH471JY) as
C2009.
• Update the firmware of unit
*1
.
Page 4 of this technical report
(PG-M20X/S, PGM-25X)
4
• Add a jumper (QCNW-1869TAZZ) to the
PC I/F unit.
Page 5 of this technical report
(PG-M20X/S, PGM-25X)
5
• Add a jumper (QCNW-B664WJZZ) to the
power unit.
Page 6 of this technical report
(PG-M20X)
6
• Clean the dust from the cooling fan and the
other PWB units.
(PG-M20X/S, PGM-25X)
7
• Add two lead wires (QCNW-B547WJZZ)
between the input unit and the power unit.
Page 7 of this technical report
(PG-M20X/S, PGM-25X)
8
• Change C9523 to 33 µF
(VCAAPC0GJ336MY).
Page 8 of this technical report
(PG-M20X/S, PGM-25X)
9
• Add 1k . (VRS-CY1JF102J) in parallel to
C3738.
• Update the firmware of unit
*1
.
Page 9 of this technical report
(PG-M25X)
10
• Update the firmware of Wireless LAN Card.
Technical reportLV-065
(PG-M25X)
UPGRADE FOR THE IMPROVEMENT OF PERFORMANCE
AND RELIABILITY
TECHNICAL BULLETIN
Date:
15 October 2003
Model: PGM20S 
PGM25X
Ref.:
005
Colour: White
Page:
1 of 9
LV-080
Sharp Electronics (UK) Ltd., Technical Services Group
Parts
Kit part code
Description
Parts delivery section
BQC-PGM20X//2
Part kit for LV-080
J
The component parts listed on the page 2 are included in this kit part.
Parts included in the kit parts BQC-PGM20X//2
Ref
Parts code
Description
Price code
---
QCNW-1869TAZZ
UL1571 AWG36
AD
---
QCNW-B547WJZZ
Lead wires (Red and black)
AE
---
QCNW-B664WJZZ
UL1007 AWG24 35mm
AD
C9523
VCAAPC0GJ336MY
Capacitor, 33 µF (4V)
AE
C2009
VCCCCY1HH471JY
Capacitor, 470pF
AA
R2009
VRS-CY1JF101JY
Resistor, 100 .
AA
R3720
VRS-CY1JF102JY
Resistor, 1k .
AA
----
VRS-CY1JF104JY
Resistor, 100k .
AA
*1 
If you update the firmware of unit, please update it to the following latest version.
PG-M20X : M20X021206
PG-M25X : M25X021128
PG-M20S : M20S021212
*2 
The improved colour wheel (RMOTBA002WJZZ) is not included in the kit part
(BQC-PGM20X//2), because the existing colour wheel should be replaced only when it is
defective.
LV-080
Sharp Electronics (UK) Ltd., Technical Services Group
Page of 10
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Here you can read online and download Sharp PG-M20S (serv.man34) Technical Bulletin in PDF. PG-M20S (serv.man34) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp PG-M20S (serv.man34) Projector. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.