Sanyo POA-SR-140 User manual

SERVICE MANUAL
Smoke Resistant Box
MODEL NO.
POA-SR-140
CONTENTS:
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Indicator display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mechanical disassemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
REFERENCE No. SM5110681-00
PRODUCT CODE:
IDWB 1 119 405 85 POA-SR-140
FILE NO.

- 2 -
Part names
Specifications
ITEM
TYPE
CONTENTS
LCD Projector smoke resistant and dust resistant box
AIR CAPACITY Approximately 2.0 m3 / min
INDICATORS Power, Filter replacement, Rotary Fans error
OPERATING CONDITIONS 41°F to 95°F ( 5°C to 35°C ) (indoor)
TYPE DIMENSIONS 6.5" x 8.5" x 18.1" ( 165mm x 216mm x 461mm )
NET WEIGHT Approximately 7.5lbs ( 3.4Kg )
Smoke Resist Box
FIXED SCREW HOLES
FIXED SCREW HOLES
FILTER COVER
(AIR INTAKE VENTS)
FIXED SCREW HOLES
3 INDICATORS
CONNECTOR
FILTER
REAR
Fig. 1

- 3 -
INDICATOR DISPLAY
吸気口
排気口
EXHAUST VENT
AIR INTAKE VENT
HOT!
Fig. 2
GREEN RED
ORANGE
INDICATORS
ACTION AND OPERATION OF THE INDICATORS
POWER...........................When the main power of the Projector is turned on, the POWER indicator lights in
green.
When the POWER indicator does not light and the WARNING FILTER indicator flash-
es, the filter is not attached to the Smoke Resist Box. In this case, the READY indica-
tor on the Projector does not light and the Projector can not be turned on.
WARNING FILTER..........Normally this does not light. Should the filter become clogged with dust particles indi-
cator flashes orange. When the filter needs to be replaced, indicator lights in orange.
The filter should then be replaced immediately. when the filter is not attached, the will
flash.
WARNING.......................Normally this does not light. When the box's fan is operating abnormally, indicator
flashes red . When this occurs, turn off power immediately and request a maintenance
check. Do not leave the Smoke Resistant Box operational while the lamp is flashing
as it may became a fire and/or accident hazard.
Fig. 3
AIR INTAKE VENT & EXHAUST VENT
WARNING: DO NOT COVER INTAKE
VENTS OR EXHAUST VENTS.
If the Air Intake Vents or Exhaust Vents are covered,
there will be insufficient cooling which may result in
failure or fire.
HOT AIR EXHAUSTED !
Air blown from exhaust vent is hot. When using or
installing a smoke resistant box, following precau-
tions should be taken.

- 4 -
FILTER REPLACEMENT
Fig. 4
When replacing an filter, replace with a specified filter. A replacement filter can be ordered through your dealer.
When ordering the filter, give the following information to the dealer.
•Replacement Filter type No. : POA-FIL-140
• Smoke Resistant Box type No. : POA-SR-140
1. Press the PUSH button on the filter cover.
2. Open the filter cover and remove the used filter.
PUSH BUTTON
Fig. 5
FILTER COVER
USED FILTER
CAUTION: WHEN CHANGING THE FILTER, TURN OFF THE PROJECTOR.

Lamp replacement
- 5 -
3. Insert a new filter.
Fig. 6
Fig. 7
FILTER DETECTION
SWITCH
NEW FILTER
CAUTION: USE ONLY REPLACEMENT
FILTER RECOMMENDED BY THE
MANUFACTURER. THE USE OF
OTHER FILTERS MAY CAUSE THE
BOX TO MALFUNCTION OR POSE AN
ACCIDENT RISK.
CAUTION: TAKE CARE NOT TO DAM-
AGE THE FILTER DETECTION SWITCH
LOCATED INSIDE THE BOX WHEN
INSERTING THE FILTER.
4. Check that the filter is not tilted or warped and then
close the filter cover.
This will lock it into place.
5. Reset the filter timer.
REfer to "FILTER OPERATION TIME CHECK AND FILTER TIME RESET"

Lamp replacement
- 6 -
RESET ING THE FILTER TIME
E CHECK
R TIME
POWER
WARNING
FILTER WARNING
OFF OFF
ON
Fig. 8
Fig. 9
Fig. 10
● The filter operation time can be check in the projector menu.
● Open [INFORMATIO ] in the menu and check [Option filter time] for
the hour counter.
✽ "Option filter time"menu will not exist when Smoke Resistant Box is
not attached on the projector.
Reset the filter time according to the following procedures.
(Only reset the filter time when changing the filter. The Smoke
Resistant Box cannot be operated properly if it is reset other than fil-
ter change.)
FILTER OPERATION TIME CHECK AND FILTER TIME RESET
FILTER OPERATION TIME CHECK
RESETTING THE FILTER TIME
1. Check that the Smoke resistant box is properly
attached to the Projector.
2. Turn on the Projector and display screen.
Check all indicators on Smoke Resistant Box .
3. Select [ SPECIAL ] in the Projector's menu. Then
select [ Filter ].
4. Select [ Option box ] and then select [ Reset ] and then
[ Yes ].
5. A message [Please wait - - ] will appear. When it disappears Filter time reset is complete. Close the
menu.

A
A
A
A
- 7 -
Mechanical disassemblies
Fig. 11
Fig. 12
Disassemble should be made following procedures in numerical order.
Following steps show the basic procedures, therefore unnecessary step may be ignored.
Caution:
The parts and screws should be placed exactly the same position as the original otherwise it may cause lose of
performance and product safety.
The wiring method of the leads and ferrite cores should be returned exactly the same state as the original other-
wise it may cause lose of performance and product safety.
Before disassemblies:
Turn off a projector and disconnect the AC power cord.
Smoke resistant box removal from a Projector.
1. Hold the Smoke Resistant Box with one hand and Loosen 4 screws A.
Remove the Smoke Resistant Box.
Caution:
Be careful do not damage connector.
Align the connector of projector with the
connector pins of the Smoke Resistant Box.
Pins
Connectors
Phillips-Head Screwdriver

Mechanical disassemblies
- 8 -
Fig. 13
2. Hold the Smoke Resistant Box parallel to the Projector and taka out it
slowly the Projector.
3. Press the PUSH button on the filter cover.
CAUTION: TAKE CARE NOT TO TOUCH THE CONNECTOR OR APPLY
IMPACT THAT MAY DAMAGE THE CONNECTOR.
Pins
CONNECTOR
Disassemblies of Smoke Resistant Box
PUSH BUTTON
Fig. 14

Mechanical disassemblies
- 9 -
4. Open the filter cover and remove the filter.
5. Slide the shaft of a filter cover inside and pull the filter cover.
Remove the filter cover.
Fig. 15
FILTER COVER
FILTER
Fig. 16 Fig. 17
SHAFT
1. SLIDE
2. PULL
FILTER COVER
FILTER COVER

Mechanical disassemblies
A
AA
A
- 10 -
6. Remove the 4 screws Aand remove the Frame main unit.
7. Remove the 2 screws Aand remove the Connector.
Remove the 2 screws Band remove the Holder.
Fig. 18
FRAME MAIN UNIT
A
A
B
B
Fig. 19
CONNECTOR
HOLDER

Mechanical disassemblies
B
B
A
A
AA
- 11 -
8. Remove the 4 screws Aand remove the 2 Fans (FAN1,FAN2).
Remove the 2 screws B, remove the Fixer-A and Fixer-B.
9. Remove the 2 screws Aand remove the SW unit.
Remove the 2 screws Band remove the filter detection switch.
Fig. 20
FAN1
FAN2
FIXER-B
FIXER-A
A
A
B
B
FILTER DETECTION
SWITCH
HOLDER
SW UNIT
Fig. 21

Mechanical disassemblies
- 12 -
10. Remove the LED unit and remove the LED decoration plate.
Fig. 22
11. Remove the 2 screws and remove the LED board.
Fig. 23
LED DECORATION PLATE
LED UNIT
LED BOARD
HOLDER

Mechanical disassemblies
- 13 -
Fig. 24
Precautions of Smoke Resistant Box Installation
When attaching Smoke Resistant Box in a projector, refer to the "PROCEDURE OF INSTALLATION" of
an owner's manual.
Cautious of especially the following items.
1. Unplug the projector from the electricity socket when attaching the Smoke Resistant Box. Attaching the
Smoke Resistant Box while the projector is connected to electricity may damage the Box or cause it to
malfunction.
2. Take care not to touch the connector or apply impact that may damage the connector.
3. No wide gap exists between the projector body and the Smoke Resistant Box.
THERE SHOULD BE NO WIDE GAP THERE SHOULD BE NO WIDE GAP

- 14 -
1
2
3
4
7
8
5
9
12
10
12
11
6
13
14
15
RATING LABEL
Fig. 25
Parts list
When it is replaced to the new assembly board. Factory adjustments of the
new assembly board have completed. Readjustment is unnecessary.
Part order must part No. and descriptions.

Parts list
- 15 -
Safety significant parts
Product safety should be considered when a component replacement is made in any
area of the smoke resistant box. Components indicated by mark ( ) in the parts list
and the schematic diagram designate components in which safety can be of special
significance. It is, therefore, particularly recommended that the replacement of the
parts must be made by exactly the same parts.
!
Ref.No Part No. Description
✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼
MECHANICAL AND ELECTRICAL PARTS
1610 319 7395 ASSY,CABINET-IDWB
2610 319 7418 ASSY,PANEL FILTER-IDWB
3610 319 7401 ASSY,FRAME MAIN-IDWB
4610 319 7463 HOLDER WIRE-IDWB
5610 319 7425 FIXER CLAMP A-IDWB
6610 319 3366 HOLDER MICRO SW-IDWB
7610 319 3373 HOLDER PWB-IDWB
8610 319 3335 DEC INLAY LED-IDWB
9610 320 0736 FIXER CLAMP B-IDWB
10 645 074 6604 CORE, RING
11 645 074 6574 MICRO SW
12 645 074 6581 MOTOR, FAN
13 645 074 6611 UNIT MAIN
14 645 074 6598 WIRE ASSY
15 POA-FIL-140 FILTER (Filter is optional part.)
✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼✼
ACCESSORIES
610 319 1911 OWNERS MANUAL-IDWB
!
!

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This Smoke Resistant Box is controlled by the projector. When the problem of the picture or the sound occurs,
remove Smoke Resistant Box from a projector and check the projector with the service manual of a projector.
No Power. Check that the projector is connected to a power source.
Check that the POWER indicator is lighted green.
When the WARNING indicator is flashing red.
The built-in Rotary Fan has malfunctioned
and halted operation. Check that the FAN,
Connector and Projector
When the WARNING FILTER indicator is flashing quickly.
WARNING FILTER indicator lighted orange. When the WARNING FILTER indicator light
orange, the filter should be replaced with a new
filter immediately.
The filter may have come loose, or the fan detection
switch may be damaged.
Check the Connector connected
with projector.
Yes Check
the projector
When the WARNING FILTER indicator is flashing slowly.
The filter is choked up, the filter should be replaced
with a new filter immediately.
No
TROUBLESHOOTING
WARNING: THIS IS A CLASS A PRODUCT. IN A DOMESTIC ENVIRONMENT THIS
PRODUCT MAY CAUSE RADIO INTERFERENCE IN WHICH CAUSE THE USER MAY
BE REQUIRED TO TAKE ADEQUATE MEASURES.
The CE Mark is a Directive conformity mark of the European
Community (EC).

- 17 -
1
2
3
4
12
11
10
9
8
7
6
5
13
14
ＣＰＵ
FAN1
1
2
3
4
1
2
+16V
+16V
+5V
+5V
+5V
+5V
1
2
3
4
3 (NC)
1
2
3
4
12
11
10
9
8
7
6
5CN5
FAN1
1:16V
2:16V (FAN)
3:GND
4:GND
5:SDA (IIC DATA LINE)
6:SCL (IIC CLOCK LINE)
7:GND
8:GND
9:5V (SIGNAL)
10:NC
11:J-SNS (PJ CONNECT)
12:GND
CN1
CN2
CN3
CN4
EEP
ROM
POWER
WARNING FILTER
WARNING
LED2(RED)
LED3(ORANGE)
LED1(GREEN)
For software
reinstallation
ASSY,PWB
FILTER SENSOR SW
+V(RED)
GROUND(BLACK)
SPEED(OUT)
PWM IN (BROWN)
+V(RED)
GROUND(BLACK)
SPEED(OUT)
PWM IN (BROWN)
I/F CONNECTOR
(FAN)
PROJECTOR OPTION CONNECTOR
BLOCKDIAGRAM
Fig. 26