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SVD800 HD Millennium

Sim2 SVD800 HD Millennium, SVD800 Teatro Service Manual

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SERVICE MANUAL
SVD800 HD SVD800 HD Millennium
SVD800 Teatro
CRT VIDEO PROJECTOR
1° Edition April 2001
page - 2 -
WHITE PAGE
page - 3 -
1. SAFETY AND REGULATIONS ............................................................................................................................................4
INTRODUCTION...................................................................................................................................................................................4
IMPORTANT NOTES..............................................................................................................................................................................4
ABOUT THIS MANUAL........................................................................................................................................................................4
SAFETY INFORMATION .......................................................................................................................................................................4
2. GENERAL INFORMATION ..................................................................................................................................................5
3. SERVICE ADJUSTMEN T .......................................................................................................................................................6
PC028 MODULE: HORIZONTAL DEFLECTION..............................................................................................................................6
PC132 MODULE: EHT AND DYNAMIC FOCUS.............................................................................................................................7
PC121 SHIFT BOARD.....................................................................................................................................................................9
PC226 MODULE: SYNC PROCESSOR ............................................................................................................................................10
PC131 MODULE: VIDEO PROCESSOR..........................................................................................................................................11
M459X POWER SUPPLY.............................................................................................................................................................12
PC097 MICRO BOARD .................................................................................................................................................................13
4. WAVEFORM PC339.0...........................................................................................................................................................14
5. PROTECTION CIRCUITERY............................................................................................................................................19
EHT PROTECTION CIRCUIT ( PC132 BOARD):.............................................................................................................................19
FLY-BACK V OLTAGE PROTECTION CIRCUIT ( PC132 BOARD ):................................................................................................19
AUTOMATIC BEAM CURRENT LIMIT PROTECTION CIRCUIT ( PC132 BOARD ):......................................................................19
6. SERVICE ADJUSTMEN TS..................................................................................................................................................21
2/4 POLE ADJUSTMENT.............................................................................................................................................................21
SERVICE SETTING.......................................................................................................................................................................23
WHITE MENU .................................................................................................................................................................................24
SERVICE MENU.............................................................................................................................................................................29
7. SDG UPC2000 INSTALLATION PROCEDURE...........................................................................................................32
8. SPARE PARTS LIST..............................................................................................................................................................33
9. SVD800HD SPARE PART LIST .........................................................................................................................................34
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1. Safety and regulations
Introduction
• The instruction given in this manual are meant for service engineers only. A good knowledge of electronics and
mechanical engineering is absolutely necessary to repair and maintain the SVD800HD projector.
Important notes
• Should any question after reading this manual arise, please contact your local SIM2 distributor, who will be glad to
help you.
• In the interest of our customers we keep on improving the product. Therefore SIM2 reserves the right to change all
technical specifications and further information provided in this manual at any time without prior notice.
About this manual
• This manual is intended for those who are doing repairing work and maintenance on the SVD800HD.
• This manual has the following goals: to enable technicians to perform the necessary maintenance and repair work to
keep the unit in good operating condition.
• In case of relevant changes, the information provided in this manual could be updated with the issue of technical
notes.
Safety information
• This projector has been made in compliance with EN 60950 standard relative to the safety of information technology
equipment.
• This projector has been made in compliance with EN 50082-1 (Generic immunity law), EN61000-3-2 (Limits for
Harmonic current emission), EN55022 (Limits and measuring methods of radio disturbance produced by information technology equipment), EN6100-3-3 (Limits- section 3 Limitation of Voltage Fluctuation and Flicker in low voltage supply system for equipment with rated current SYMBOL 163\f “Symbol” 16A).
• The accessible metal parts are connected to the power socket round terminal. When installing make sure the ground
cable is properly connected and use only the power cable and extension leads supplied with the unit. The unit must be grounded. Interruption of the protective conductors inside or outside the unit, or disconnecting protective earthing may cause possible danger and malfunction of the unit.
• SVD800HD may only be maintained and serviced by qualified persons who are familiar with the machine.
• Always disconnect the cable plug from the mains socket for those service operations that need complete cut off of the
machine.
• To avoid damage, fire or electrical shock, do not expose the unit to rain or damp.
• Do not lead any kind of liquid spill inside the unit.
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• Do not let any kind of objects through the ventilation slits in the cabinet of the projector as they could touch the high
voltage components and cause a short circuit that could, in turn, cause fire or electrical shock hazards.
• If any object or liquid does get inside the projector take the power cable out of the socket immediately.
• Observe instruction, regulation and notes provided in this service instruction.
• It is distributor’s responsibility to ensure proper qualification of personnel working with the machine.
• Observe all CAUTION notes applied out or inside the unit. Keep them clean and in readable condition.
• Observe all local safety regulation regarding the handling of electric/electronic equipment.
2. General information
• For all information/instruction concerning the installation and the adjustment of the unit, please refer to the “User’s
and installation manual”, provided with each unit.
• Model and Serial number indications are located on the projector rear side label. Record the Serial Number in the
space below and refer to it for future Information/Service request to SIM2 customer service.
• Any part should be replaced using only original SIM2 spare parts. Failure to follows this advice can lead to a
deterioration of the unit’s performances, electrical damage, fire and electrical shock hazards and will also invalidate the guarantee.
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3. SERVICE ADJUSTMENT
Factory conditions:
- ceiling-front installation
- screen 90"
- Signal: unless otherwise specified use internal HATCH COARSE FINE (without any signal applied to the inputs slots)
PC028 MODULE: horizontal deflection
A section includes the adjustments pre-set in the Factory. B section includes the adjustments to be performed in service when the unit is replaced.
A section (Factory adjustments)
1. Switch-off the EHT pulling out the CN12 connector, placed on the mother board under the Red CRT.
2. Adjust P1 fully clockwise and P2 fully anticlockwise.
3. Connect a digital voltmeter on TP9 and adjust P2 for a voltage of 1050 Vd.c., than disconnect the voltmeter.
4. Adjust slowly P1 till to alight DL1 (the horizontal deflections will be switched-off: no signal at the anode of D2, D3 and D4).
5. Adjust P2 fully anticlockwise.
6. Switch-off and switch- on the projector
7. Adjust P2 and P3 as described on B section.
B section (service adjustments)
1. Project the Pattern signal test on the screen
2. Adjust by the full function remote control the horizontal SIZE for: H 80
3. Adjust P2 for a correct horizontal amplitude: looking throw the lenses the top part of the raster must come out a little the screen (see following picture).
view through the lenses
4. Adjust P3 for a correct keystone.
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PC132 MODULE: EHT and dynamic focus
A section includes the adjustments pre-set in the Factory. B section includes the adjustments to be performed in service when the unit is replaced.
A section (Factory adjustments)
1. The adjustments have to be executed, step by step, in the same sequence described below:
2. Adjusting and Testing of the EHT Generator Circuit:
3. Connect a Digital Multimeter with High Voltage Probe to the EHT splitter (removing one EHT cable)
4. Rotate the trimmers:
5. P1 fully clockwise (average beam current protection on the three tubes)
6. P4 fully counter clockwise (EHT protection n.1 – fly-back)
7. P5 fully clockwise (EHT protection n.2)
8. Switch the mains ON.
9. Select a black-page pattern 0,7 Vpp RGB signal.
10. Adjust Contrast to 100 and Brightness to 50 and memorise these values.
11. Select a white-page pattern 0,7 Vpp RGB signal.
12. Select the 6500 °K colour temperature.
13. Wait 20’ (warm-up time).
14. Switch the three CRTs OFF using the key “MUTE” on the remote control.
15. Adjust P3 for 33,5 ± 0,1 kV
16. Seal P3 with LOCTITE 454 adhesive.
17. Switch the three CRTs ON.
18. Verify that the EHT voltage is 33,5 ± 0,1 kV.
19. Switch the mains OFF.
20. Remove the High Voltage Probe from the EHT splitter and insert the EHT cable.
Adjusting and Testing of the EHT Protection Circuit:
1. Rotate P4 slowly clockwise until the protection circuit will be activated (EHT OFF and DL1 ON, after 10 seconds
the projector goes to stand-by mode).
2. Rotate P4 fully counter clockwise.
3. Connect the Digital Multimeter between GND2 and TP12.
4. Switch the projector ON by remote control.
5. Measure the voltage and write the value down.
6. Connect the Digital Multimeter between GND2 and TP5.
7. Adjust P4 for a voltage 0,1 ± 0,01 V less than the value reed on step 2.5 (this operation is equivalent to set the EHT
protection N.2 threshold to 37,5 ± 0,5 kV).
8. Seal P4 with LOCTITE 454 adhesive.
9. Check that the voltage on TP5 is not changed after P4 sealing.
10. Rotate P1 slowly counter clockwise until the protection circuit will be activated (EHT OFF and DL1 ON, after 10
seconds the projector goes to stand-by mode).
11. Rotate P1 fully clockwise.
12. Connect the Digital Multimeter between GND2 and TP4.
13. Switch the projector ON by remote control.
14. Adjust P1 for a voltage of 4,5 ± 0,1 V (this operation is equivalent to set the EHT protection N.1 threshold to 37,5 ±
0,5 kV).
15. Seal P1 with LOCTITE 454 adhesive.
16. Check that the voltage on TP4 is not changed after P1 sealing.
17. Connect the Digital Multimeter between GND1 and TP7.
18. Adjust P5 for a voltage of 0,9 ± 0,01 V (this operation is equivalent to set the Average Beam Current Protection to
4,0 ± 0,2 mA).
19. Connect the Digital Multimeter between GND1 and TP8.
20. Set contrast to 0 by remote control.
21. Connect R64 (reference side) to ground with a wire.
22. Increase the contrast value slowly and check that the protection circuit is activated when the voltage reaches the
value of -17,0 ± 0,5 V (EHT OFF and DL1 ON, after 10 seconds the projector goes to stand-by mode).
23. Remove the ground-wiring from R64.
24. Seal P5 with LOCTITE 454 adhesive.
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25. Connect the Digital Multimeter between GND1 and TP7.
26. Switch the projector ON by remote control.
27. Check that the voltage on TP7 ( 0,9 ± 0,01 V ) is not changed after P5 sealing.
B section (service adjustments)
1. Use white signal 100% of the screen area
2. Connect a high voltmeter to the EHT splitter (disconnecting one EHT cable)
3. Switch-off the RGB (black screen)
4. Adjust P3 for 33.5±0.1 KV
5. Inject silicon rubber into P3, sealing it.
6. Switch-on the three CRT's.
7. Adjust P5 for 0.9 Vd.c. on TP7.
8. Inject silicon rubber into P5, sealing it.
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PC121 SHIFT BOARD
A section includes the adjustments pre-set in the Factory. B section includes the adjustments to be performed in service when the unit is replaced.
A section (Factory adjustments)
1. Turn anticlockwise the cores of L1 and L5 till come out for about 1.5 cm.
2. Turn anticlockwise the core of L3 till come out for about 1 cm.
3. Select CROSS pattern.
4. Reset convergence values, using RESET ZONE (see user manual)
5. Select ZONE
6. Centre the Green raster looking through the lenses, using SHIFT control.
7. Centre the Red raster looking through the lenses, using SHIFT control.
8. Centre the Blue raster looking through the lenses, using SHIFT control.
9. Select HATCH COARSE pattern.
10. Move horizontally the Blue and Red tubes to superimpose the vertical central lines.
11. Select HATCH FINE pattern.
12. Switch-off B tube.
13. Adjust L1 to have a symmetrical convergence error of the RED at the sides (see following figure)
14. Switch-off R tube and switch-on the B tube.
15. Adjust L5 to have a symmetrical convergence error of the BLUE at the sides (see following figure)
RGB B G R
B section: service adjustments are not requested.
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PC226 MODULE: sync processor
A section includes the adjustments pre-set in the Factory. B section includes the adjustments to be performed in service when the unit is replaced.
A section (Factory adjustments)
1. Short circuit jumper J3.
2. Connect a frequency counter to TP8 HDRIVE.
3. Switch-on the video projector.
4. Select RGB slot without any signal applied to it.
5. Adjust P2 for the horizontal frequency into 14.8 KHz and 14.9 KHz range.
6. Connect a frequency counter to pin 37 of C.I.21.
7. Adjust P1 for the vertical frequency into 36 Hz and 37 Hz range.
8. Switch-off the projector
9. Remove jumper J3.
10. Short circuit jumper J4.
11. Connect a frequency counter to TP8 HDRIVE.
12. Switch-on the projector.
13. Select RGB slot without any signal applied to it.
14. Adjust P3 for the horizontal frequency into 105.7 KHz and 106.5 KHz range.
15. Remove jumper J4. Check the correct PATTERN PHASE (see service menu)
B section: service adjustments are not requested.
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PC131 MODULE: video processor
A section includes the adjustments pre-set in the Factory. B section includes the adjustments to be performed in service when the unit is replaced.
A section (Factory adjustments)
1. Adjusting and Testing of the total (three CRTs active) Average Beam Current Limitation Circuit
1.1 Switch the mains ON.
1.2 Adjust P1 and P2 fully anticlockwise.
1.3 Select a white-page pattern 0,7Vpp RGB signal.
1.4 Adjust Contrast to 100 and Brightness to 50 and memorise these values.
1.5 Connect a Digital Multimeter between GND1 and TP8 (PC132 board).
1.6 Adjust P1 (PC131) for – 13,0 ± 0,1 V (this operation is equivalent to set the average beam current limitation circuit of three tubes to 3,0 ± 0,1 mA).
1.7 Switch the projector OFF by remote control.
1.8 Seal P1 with LOCTITE 454 adhesive.
1.9 Switch the projector ON by remote control.
1.10 Check that the voltage on TP8 is not changed after P1 sealing.
2. Adjusting and Testing of the single CRT Average Beam Current Limitation Circuit
2.1 Connect the Digital Multimeter between GND1 and TP8 (PC132).
2.2 Switch the Red and the Blu CRTs OFF using the keys R and B of the remote control.
2.3 Adjust P2 (PC131) for – 8,0 ± 0,1 V (this operation is equivalent to set the average beam current limitation circuit of a single tube to 2,1 ± 0,1 mA).
2.4 Switch the projector OFF by remote control.
2.5 Seal P2 with LOCTITE 45 4 adhesive.
2.6 Switch the projector ON by remote control.
2.7 Check that the voltage on TP8 is not changed after P2 sealing.
2.8 Remove the Digital Multimeter probes.
A section (service adjustments)
1. Adjusting and Testing of the total (three CRTs active) Average Beam Current Limitation Circuit
1.1 Switch the mains ON.
1.2 Adjust P1 and P2 fully anticlockwise.
1.3 Select a white-page pattern 0,7Vpp RGB signal.
1.4 Adjust Contrast to 100 and Brightness to 50 and memorise these values.
1.5 Connect a Digital Multimeter between GND1 and TP8 (PC132 board).
1.6 Adjust P1 (PC131) for – 13,0 ± 0,1 V (this operation is equivalent to set the average beam current limitation circuit of three tubes to 3,0 ± 0,1 mA).
1.7 Switch the projector OFF by remote control.
1.8 Seal P1 with LOCTITE 454 adhesive.
1.9 Switch the projector ON by remote control.
1.10 Check that the voltage on TP8 is not changed after P1 sealing.
2. Adjusting and Testing of the single CRT Average Beam Current Limitation Circuit
2.1 Connect the Digital Multimeter between GND1 and TP8 (PC132).
2.2 Switch the Red and the Blu CRTs OFF using the keys R and B of the remote control.
2.3 Adjust P2 (PC131) for – 8,0 ± 0,1 V (this operation is equivalent to set the average beam current limitation circuit of a single tube to 2,1 ± 0,1 mA).
2.4 Switch the projector OFF by remote control.
2.5 Seal P2 with LOCTITE 454 adhesive.
2.6 Switch the projector ON by remote control.
2.7 Check that the voltage on TP8 is not changed after P2 sealing.
2.8 Remove the Digital Multimeter probes.
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M459X POWER SUPPLY
A section includes the adjustments pre-set in the Factory. B section includes the adjustments to be performed in service when the unit is replaced.
A section (Factory adjustments)
1. Switch-on the projector.
2. Switch-off the RGB tubes.
3. (*) Adjust RV1 on main power supply board for +6.25 Vd.c.±50mV between pins 6-7 of a CRT socket (PC029)
4. Adjust RV2 on B410.4 module, positioned vertically on main power supply board for +15.5 Vd.c.± 200mV on pin 1 of the CN20 connector placed on the mother board.
5. Adjust RV1 on B410.4 module, positioned vertically on main power supply board for + 70 ±1Vd.c. to the anode of D3, placed on PC132 (EHT & dynamic focus module).
(*) Note. The heater lines have a voltage of about 100 V higher than the ground.
B section (service adjustments)
1. Switch-on the projector.
2. Switch-off the RGB tubes.
3. (*) Adjust RV1 on main power supply board for +6.25 Vd.c.±50mV between pins 6-7 of a CRT socket (PC029)
4. Adjust RV2 on B410.4 module, positioned vertically on main power supply board for +15.5 Vd.c.± 200mV on pin 1 of the CN20 connector placed on the mother board.
5. Adjust RV1 on B410.4 module, positioned vertically on main power supply board for + 70 ±1Vd.c. to the anode of D3, placed on PC132 (EHT & dynamic focus module).
6. Check the following line:
• + 210 ± 5Vd.c.at the pin 3 of CN17 mother board connector.
(*) Note. The heater lines have a voltage of about 100 V higher than the ground.
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PC097 MICRO BOARD
1. When replace the micro board pay attention to use the EEPROM C.I.20 of the old board into the new one,
otherwise it's necessary to do again all type of adjustments, such as white & black, convergence and so on.
2. Positions of the DIP switch SW02:
Original setting
With Eprom (C.I.29) version <1.31
1-OFF = user mode. 1-ON = factory service mode 2-OFF = fan protection enabled 2-ON = fan protection disabled 3-not used in service (it must be set in OFF position) 4-not used in service (it must be set in OFF position)
3. Adjust the potentiometer placed on R126 position to centre the OSD: use MEMORY MANAGER the largest
menu and horizontal frequency towards the maximum of range.
Note. Usually in service no adjustments are requested. If introducing a new microprocessor board the OSD will appear not correctly centred carry out the adjustment as at the step 3.
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