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BOXLIGHT MP-56t Service Manual

Boxlight mp-56t
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SERVICE MANUAL

ORIGINAL VERSION
PRODUCT CODE
1 122 199 04
(MH7E)
SERVICE MANUAL
BOXLIGHT MP-56t
NOTE: Match the Chassis No. on the unit's back cover with the
Chassis No. in the Service Manual.
If the Original Version Service Manual Chassis No.
does not match the unit's, additional Service
Literature is required. You must refer to "Notices" to the
Original Service Manual prior to servicing the unit.
Chassis No. MH7-MP-56t00
REFERENCE NO.
SM
5110524-00

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  • Page 1: Service Manual

    SERVICE MANUAL SERVICE MANUAL BOXLIGHT MP-56t ORIGINAL VERSION Chassis No. MH7-MP-56t00 NOTE: Match the Chassis No. on the unit’s back cover with the Chassis No. in the Service Manual. If the Original Version Service Manual Chassis No. does not match the unit’s, additional Service Literature is required.

  • Page 2: Table Of Contents

    ■ Contents ■ Safety Instructions ________________________________________________3 ■ Specifications ____________________________________________________4 ■ Adjustments after Parts Replacement ________________________________5 ■ Circuit Protections ________________________________________________6 Fuse ______________________________________________________6 Thermal switch ______________________________________________6 Interlock switch ______________________________________________6 Warning temperature and power failure protection __________________7 ■ Mechanical Disassemblies ________________________________________8 ■ Optical Parts Disassemblies ______________________________________13 ■...

  • Page 3: Safety Instructions

    ■ Safety Instructions SAFETY PRECAUTIONS WARNING: The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is iden- tified with the line ( ) in the schematic diagram.

  • Page 4: Specifications

    ■ Specifications Projector Type Multi-media Projector Dimensions (W x H x D) 11.9" x 6.4" x 16.6" (302mm x 162mm x 422mm) (not including Adjustable Feet) Net Weight 17.2 lbs (7.8 kg) LCD Panel System 0.99” TFT Active Matrix type, 3 panels Panel Resolution 1024 x 768 dots Number of Pixels...

  • Page 5: Adjustments After Parts Replacement

    ■ Adjustments after Parts Replacement ● ❍ : Adjustment necessary : Check necessary Disassembly / Replaced Parts LCD/ Polarized glass Power DC Condenser Relay Prism Mirror Main Board Lens Lens Board Ass’y ❍ ● Condenser lens adjustment ❍ ● Relay lens adjustment ●...

  • Page 6: Circuit Protections

    ■ Circuit Protections This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro- jector, it will automatically turn off by operating one of the following protection circuits. ● Fuse Line Filter Board Fuse The fuse is located inside of the projector.

  • Page 7: Warning Temperature And Power Failure Protection

    Circuit Protections ● Warning temperature and power failure protection The projector will be automatically turned off when the internal temperature of the projector exceeds the normal oper- ating temperature, or the cooling fans stops, or the power supplies in the projector are failed. - If the TEMP WARNING indicator (red) is flashing, it may detect the abnormal temperature inside the projector.

  • Page 8: Mechanical Disassemblies

    ■ Mechanical Disassemblies Mechanical 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 loss of performance and product safety.
  • Page 9 Mechanical Disassemblies Main Board & Thermal-SW removal Remove 1 screw (M3x8) to take the thermal SW905 Main Board switch(SW905). Remove 5 screws (M3x6) to take the Main Board upward. AV Board COM Board Rear Panel Ass’y AV, COM Board & Rear Panel removal Fig.2 Remove 1 screw (M4x10) and take the Rear Panel...
  • Page 10 Mechanical Disassemblies Speaker base removal Remove 3 screws (T3x10) and then remove the Speaker Base Speaker Base. Fig.4 Optical Unit removal Loosen 1 screw on the lamp cover and 2 screws the lamp house and the take the Lamp House off from the cabinet bottom.
  • Page 11 Mechanical Disassemblies Fan & Motor removal Remove 4 screws (T3x20) to take the fan (FN904) off. Remove 3 screws (T4x25) to take the fan (FN907) off. Remove 4 screws (T3x10) to take the duct ass’y off. FN904 Remove 2 screws (T3x6) to take the Lens Shift Motor and Sensor SW Holder from the Base.
  • Page 12 Mechanical Disassemblies Power AC Board removal Power AC Remove 4 screws ( T3x6) to take the Power Board off. Board Remove 4 screws (T3x10) to take the Holder from the cabinet bottom. Line Filter Board & Interlock SW removal Remove 3 screws (T3x10) to take the Filter Board Ass’y upward.

  • Page 13: Optical Parts Disassemblies

    ■ Optical Parts Disassemblies Before taking this procedure, remove Cabinet Top and Main Board following to the “Mechanical Disassemblies”. Disassembly requires a 2.0mm hex wrench. Projection Lens removal Shift the projection lens to the end of top position by pressing Note in the Mounting Projection the Lens Shift (+) button.
  • Page 14 Optical Pats Disassemblies Prism ass’y removal and disassembly Remove 4 hex screws and take the LCD/Prism ass’y off upward. Remove each 1 screw and take the Glass Holder, and then pull the Optical filter, Polarized Glass-Out upwards off. These glasses are mounted for R, G and B LCD panels respectively.
  • Page 15 Optical Parts Disassemblies Relay Lens disassembly Remove 2 hex screws and pull the Relay Lens ass’y upward. Remove 2 screws to take the Lens off from the holder. Note: There is no mounting direction of the lens. Holder Relay Lens Fig.4- Fig.4- Integrator-In disassembly...
  • Page 16 Condenser Lens disassembly Remove 2 hex screws and take the Condenser Lens ass’y. Remove 4 screws to take the Lens off from the holder. * Lens should be placed as the flat surface side comes to the holder side. Holder Condenser Lens Fig.6- Fig.6-...
  • Page 17 Optical Parts Disassemblies Key No. Description Locations and Directions Slit-Int When the optical parts in the optical unit mounting or assembling, the Integrator Lens-Out parts must be mounted in the specified location and direction as PBS (Prism Beam Splitter) shown in figure below. Mirror (W-Cold) Note: The arrow in the figure below is indicated that there is the direc- Condenser lens-Out...

  • Page 18: Lcd Panel/Prism Ass'y Replacement

    ■ LCD Panel/Prism Ass’y Replacement IMPORTANT NOTICE on LCD Panel/Prism Ass'y Replacement LCD panels used for this model can not be replaced separately. Do not disassemble the LCD Panel/Prism Ass’y. These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replaced whole of the LCD panels and prism ass’y at once.

  • Page 19: Lamp Replacement

    ■ Lamp Replacement WARNING: ORDER REPLACEMENT LAMP - For continued safety, replace with a lamp assembly of the same type. Type No. Service Parts No. - Allow the projector to cool for at least 45 minutes before you open the POA-LMP59 610 305 5602 lamp cover.

  • Page 20: Optical Adjustments

    ■ Optical Adjustments Before taking optical adjustments below, remove the Cabinet Top and Main Board, if required, following to the “Mechanical Disassemblies” Adjustments require a 2.0mm hex wrench and a slot screwdriver. Note: Do not disconnect connectors K8E, K8F, K8G, K8J and K8K on the main board, because the projector can not turn on due to operate the power failure protection.
  • Page 21 Optical Adjustments Condenser Lens adjustment Turn the projector on by a state of without FPC cables. Adjust the adjustment base of condenser lens ass’y to make color uniformity in white. 1) If the shading appears on the left or right of the screen as White shown in Fig.2-1, loosen 2 screws with the 2.0mm hex driv-...
  • Page 22 Optical Adjustments Relay Lens-Out adjustment Turn the projector on by a state of without FPC cables. Adjust the adjustment base of relay lens ass’y to make color unifor- mity in white. 1) If the shading appears on the left or right of the screen as shown in Fig.3-1, loosen 2 screws with the 2.0mm hex driver, and White...
  • Page 23 Optical Adjustments Mirror adjustment Turn the projector on by a state of without FPC cables. Adjust the adjustment base of mirror to make color uniformity in white. 1) If the cyan bar appears on the top or bottom of the screen as shown in Fig.4-1, loosen 2 screws with the 2.0mm hex driver, White...

  • Page 24: Electrical Adjustments

    ■ Electrical Adjustments ● Service Adjustment Menu Operation To enter the service mode To enter the “Service Mode”, press and hold the MENU and IMAGE button on the projector at the same time for more than 3 seconds. The service menu appears on the screen as follows. To adjust service data Select the adjustment group no.

  • Page 25: Circuit Adjustments

    Electrical Adjustments ● 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 per- formance and product safety.
  • Page 26 Electrical Adjustments NRS adjustment Video Gain adjustment [PC] 1. Receive the 16-step gray scale computer signal with 1. Receive the 16-step gray scale computer signal with Computer 1 [Analog RGB] mode. Computer 1 [Analog RGB] mode. 2. Enter the service mode. 2.
  • Page 27 Electrical Adjustments Luminance adjustment adjustment [PC] Pedestal adjustment [Video] 1. Receive the 100%whole-white computer signal with 1. Receive the 100%whole-Black composite video sig- Computer 1 [Analog RGB] mode. nal with Video mode. 2. Enter the service mode. 2. Enter the service mode. TP531 3.
  • Page 28 Electrical Adjustments A/D Input adjustment [Component] Pedestal adjustment [Component] [1080i-A/D INPUT ADJUSTMENT] [1080i-PEDESTAL ADJUSTMENT] 1. Receive the 16-step gray scale component signal 1. Receive the 100%whole-Black component signal [1080i] with Video [Y/Pb,Pr/Cb,Cr] mode. [1080i] with Video [Y/Pb,Pr/Cb,Cr] mode. 2. Enter the service mode. 2.
  • Page 29 Electrical Adjustments Video Gain adjustment [Component] White Balance adjustment 1. Receive the 16-step gray scale component signal [PC WHITE BALANCE ADJUSTMENT] [1080i] with Video [Y/Pb,Pr/Cb,Cr] mode. 1. Receive the 100%-whole white computer signal with 2. Enter the service mode. Computer 1 [Analog RGB] mode. TP531 3.

  • Page 30: Test Points And Locations

    Electrical Adjustments Test Points and Locations ● MAIN BOARD TP2561 TP501 TP561 TPFAN1 TP13B TPFAN2 TP2531 TP13G TPFAN3 K25G TP13R TPGVRT TP531 TPVRB TPDVS TPDHS IC9401 IC3201 TPHD TPVD TPGHS TPGVS IC801 IC341 IC6361 TPHS TP21G TP21B TPVS TP21R -30-...

  • Page 31: Service Adjustment Data Table

    Electrical Adjustments ● Service Adjustment Data Table These initial values are the reference data written from the CPU ROM to memory IC when replaced new memory IC. The adjust- ment items indicated with “✻” are required to readjust following to the “Electrical adjustments”. Other items should be used with the initial data value.
  • Page 32 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description LTI_LEVEL 1/1/0/0 0 ~ 3 NT,NT443,PAL,SECAM,PALM,PALN,480i,575i/ 480p,575p / 1080i60,1035i,720p/ 1080i50 D_PIC 0/0/1/1 0 ~ 3 NT,NT443,PAL,SECAM,PALM,PALN,480i,575i/ 480p,575p / 1080i60,1035i,720p/ 1080i50 31/31/31 0 ~ 63 PAL,PALM,PALN,PAL60,SECAM/ 575i,575p, only possible to adjust in these mode SUB_COL 7/7/7/8/6/9 0 ~ 15...
  • Page 33 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description R_BLK_DC 80/80/80 0 ~ 255 AV Pedestal Adjustment video/1080i,1035i,720p/480p,525p ✻ 0 ~ 255 dac3 A/D Ref Voltage Adjustment {BOTTOM] ✻ GVRT 0 ~ 255 dac2 A/D Ref Voltage Adjustment [TOP] BVRT 0 ~ 255 dac2...
  • Page 34 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description HINOR_VALU_FAN2_MIN 0~255 FAN2 control minimum value, HighLand Normal HINOR_VALU_FAN2_MAX FAN2 control maximum value, HighLand Normal HINOR_VALU_FAN3_MIN FAN3 control minimum value, HighLand Normal HINOR_VALU_FAN3_MAX FAN3 control maximum value, HighLand Normal HIECO_TEMP_FAN1_MIN FAN1 temperature to start the control, HighLand Eco HIECO_TEMP_FAN1_MAX...
  • Page 35 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description IMAGE_OUT_CS_SEL 0/0/0/0/0/0/0/0/0 0 or 1 001-b2 IMAGE_OUT_DEMUX 1/1/1/1/1/1/1/1/1 0 or 1 001-b1 IMAGE_OUT_THROUGH 0/0/1/1/1/1/1/0/0 0 or 1 001-b0 IMAGE_IN_TOTAL_H Same as G510~G517 0 ~ 2047 002/003 Read only IMAGE_IN_START_H 54/55/76/74 0 ~ 2047 004/005...
  • Page 36 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description MOTION_TH_DL, 8/12/8/8/8/12/8/8 0 ~ 255 MOTION_WEIGHT_0, 9/9/9/9/9/9/9/9 0 ~ 15 MOTION_WEIGHT_1, 8/8/8/8/8/8/8/8 0 ~ 15 MOTION_WEIGHT_2, 7/7/7/7/7/7/7/7 0 ~ 15 MOTION_WEIGHT_3, 6/6/6/6/6/6/6/6 0 ~ 15 MOTION_WEIGHT_4, 5/5/5/5/5/5/5/5 0 ~ 15 MOTION_WEIGHT_5, 4/4/4/4/4/4/4/4 0 ~ 15...
  • Page 37 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description dsync_delay 0 ~ 3 adr4(7-6) adclk_b 0 or 1 adr4-5 adclk_a 0 or 1 adr4-4 dsync_b 0 or 1 adr4-3 dsync 0 or 1 adr4-2 clk_b 0 or 1 adr4-1 0 or 1 adr4-0...
  • Page 38 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description V BACK PORCTH 0 ~ 2048 DISP LINE 1012 0 ~ 2048 CLAMP 0 ~ 2048 Group: 515 HDTV 720p Gakaku TOTAL DOTS 1524 0 ~ 2048 DISP DOTS 1154 0 ~ 2048 720p...

  • Page 39: Chassis Block Diagrams

    ■ Chassis Block Diagrams Chassis over view B-PANEL G-PANEL R-PANEL IC5101 IC6181 BLK-DC HV-AFC Y,Cb,Cr IC031 AUDIO-AMP. IC1141 NT/PAL-SW IC001 VOLUME IC5001 AUDIO-SW DVI-I D-SUB D-SUB MONITOR OUTPUT AUDIO -39-...

  • Page 40: Inputs & Video Signal Processing Stage

    Chassis Block Diagrams Inputs & video signal processing stage IC8061 IC8071 IC8081 IC4251 IC4261 IC4271 BUFFER BUFFER BUFFER BUFFER BUFFER BUFFER IC8001 IC201 IC4201 DVI-I/F IP CONVERTER <AD9888> <SI1661> <TC240CFTB> IC3201 IC8091 BUFFER <TC74LCX541> <MB40C348> IC5191 AMP. <BA7623> IC8041 SW-BUFFER <TC74LCX541>...

  • Page 41: Lcd Panel Driving Stage

    Chassis Block Diagrams LCD panel driving stage IC3501 IC3531 IC3561 B-LEVEL SHIFT G-LEVEL SHIFT B-LEVEL SHIFT <L3E01040> <L3E01040> <L3E01040> IC401 DIGITAL GAMMA CORRECTION <L3E07050> IC9401 DIGITAL BRIGHTER <LC24085> -41-...

  • Page 42: Audio Signal Processing Circuit

    Chassis Block Diagrams Audio signal processing circuit AV BOARD AU_SW1 AU_SW2 VIDEO SP901 AUDIO-IN Q013 Q014 Q5001 SP902 AUDIO-IN Q5002 Q011 AUDIO-IN Q5062 Q031 Mute: L AUDIO MUTE Q5052 Q5051 MUTE AUDIO BOARD Q5061 K55B K20P 18 16 20 A_SW1 WRL_CPU A_SW2 READ_CPU...

  • Page 43: Motor Driving Circuit

    Chassis Block Diagrams Motor driving circuit FOCUS K55F IC5501 FOCUS DRIVE <BA6287> ZOOM IC5531 ZOOM DRIVE <BA6287> K55B IICSCL IC801 LENS SHIFT IICSDA K55G IC5561 9,10 18,20 LENS SHIFT DRIVE <BA6920> BRIGHT K55E IC6501 11,12 BRIGHT DRIVE <BA6287> MAIN BOARD AUDIO BOARD Logic Table of Drive ICs (IC5501,IC5531, IC6501) Logic Table of Drive ICs (IC5561)

  • Page 44: System Controls

    Chassis Block Diagrams System controls P-FAIL CHO_TXD_L IC1801 I/O EXPANDER <M66500> -44-...

  • Page 45: Power Supply & Protection Circuit

    Chassis Block Diagrams Power supply & protection circuit FAN_LOCK P-FAIL P-FAIL 15.5V 3.3V S-5V 15VP FAN_LOCK IC801 -45-...

  • Page 46: Troubleshooting

    ■ Troubleshooting No Power The possible causes of No Power are listed below. Please - The abnormality on the lamp ballast board was detected. check following and refer to the chapter “Power supply and The lamp ballast board outputs error signal (LAMP_DET) protection circuit”...

  • Page 47: No Picture

    Troubleshooting No Picture The possible causes of No Picture are listed below. Please 3. No picture from DVI source. check following and refer to the chapter “Inputs & video sig- Check 5V power supply(5VDVI) at pins 6 and 7 of K10R nal processing stage”, “LCD panel driving stage”...

  • Page 48: No Sound

    Troubleshooting No Sound Please check following and refer to the chapter “Audio signal 3. No audio output signal at speakers. processing circuit” in the Chassis Block Diagrams on the pre- Check audio signals at pins 13 and 8 of IC031 on the vious page.

  • Page 49: Control Port Functions

    ■ Control Port Functions ● System Control & I/O Port Table (IC801) Name Function Name Function Polarity PA23/WRHH USB RESET USB reset signal Active L PE14/TIOC4C/DACK0/AH IC RESET Power Control w/o FAN and LAMP Active L PA22/WRHL SEPA_RESET Reset output for M66230 L: Reset PA21/CASHH Not used...
  • Page 50 Control Port Functions Name Function Name Function Polarity PD16/D16/IRQ0 PW_SW Not used PD15/D15 DATA15 Data Bus 15 PD14/D14 DATA14 Data Bus 14 PD13/D13 DATA13 Data Bus 13 PD12/D12 DATA12 Data Bus 12 PD11/D11 DATA11 Data Bus 11 PD10/D10 DATA10 Data Bus 10 PD9/D9 DATA9 Data Bus 9...
  • Page 51 Control Port Functions ● Parallel I/O Expander (IC1801, M66500FP) Name Function Name Function Polarity CG_FILTER Not used (Initial: L) DT_STB 5V ±0% A SW1 Audio SW 1 (SW1,SW2) = PC1:L, L PC2:H, L PC3:L,H A SW2 Audio SW 2 IP_PWR_DN IP Power down mode switch H: Use IP L: Not use IP IPSEL_CSA...
  • Page 52 Control Port Functions ● IIC Bus I/O Expander (IC5581, M62320FP) Port Functions Pin No. Name Function Action Serial Data output port (Not connected) IIC BUS SCL IIC BUS SDA FOCUS+ FOCUS + Active H FOCUS- FOCUS - Active H ZOOM+ ZOOM + Active H ZOOM-...
  • Page 53 Control Port Functions ● IIC Bus DA Converter (IC1531, M62399FP) Port Functions Name Function Name Function Polarity Reset input IIC BUS SCL IIC BUS SDA not use REF_B B White-Black level adj. REF_G G White-Black level adj. REF_R R White-Black level adj. VrefL DAC lower reference voltage input VrefU1...

  • Page 54: Waveform

    ■ Waveform VIDEO-IN <IC1141-4> Y-IN <IC3101-5> C-IN <IC3101-7> VIDEO_Y <IC3101-21> VIDEO_CB <IC3101-22> VIDEO_CR <IC3101-23> AV_HSYNC <IC3101-9> AV_VSYNC <IC3101-4> AV_R-OUT <TP13R> AV_G-OUT <TP13G> AV_B-OUT <TP13B> HD_OUT <TPHD> VD_OUT <TPVD> GHS_PW <TPGHS> -54-...
  • Page 55 Waveform GVS_PW <TPGVS> DHS <TPDHS> DVS <TPDVS> B-S&H OUT <TP501> G-S&H OUT <TP531> R-S&H OUT <TP561> NRS-G<TP2531> NRS-B/R <TP2561> -55-...

  • Page 56: Cleaning

    ■ Cleaning After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit. Remove dust and other particles using air spray.

  • Page 57: Ic Block Diagrams

    ■ IC Block Diagrams ● AD8185ARU <Selector, IC3001> ● AD9888KS140 <A/D, IC201> -57-...
  • Page 58 IC Block Diagrams ● BA6287F <Motor Drive, IC5501, IC5531, IC6501> ● BA6920F <Motor Drive, IC5561> -58-...
  • Page 59 IC Block Diagrams ● BA7078AF <SynC. Detector, IC7201> ● BA7655 <Audio Pre-amp, IC001> -59-...
  • Page 60 IC Block Diagrams ● DB7600 <Sync. Switch, IC3021, IC3022> ● CXA2101AQ <RGB Matrix, IC4101> -60-...
  • Page 61 IC Block Diagrams ● ICS1523M <PLL, IC4231> ● L306070D <D/A-Sample & Hold, IC501, IC530, IC561> -61-...
  • Page 62 IC Block Diagrams ● M62392 <D/A, IC3291> ● M62393 <D/A, IC281, IC4881> -62-...
  • Page 63 IC Block Diagrams ● M62399 <D/A, IC1501, IC1531> ● ML60851 <USB Driver, IC9801> -63-...
  • Page 64 IC Block Diagrams ● PW365 <System Control & Scan Converter, IC301> ● TA1318AF <AFC Sync. Driver, IC6181> -64-...
  • Page 65 IC Block Diagrams ● TB1274AF <Video Decoder, IC1101> ● TC90A69F <PAL 3L-Y/C Separation, IC2101> -65-...
  • Page 66 IC Block Diagrams ● TDA1517ATW <Audio Output, IC031> -66-...

  • Page 67: Service Parts List

    ■ Electrical Parts List MH7-MP-56t00 Product safety should be considered when a component replacement is made in any area of a projector. Components indicated by a ! mark in this parts list and the circuit diagram show components whose value have spe- cial significance to product safety.
  • Page 68 MH7-MP-56t00 Electrical Parts List Note: Parts order must contain Chassis No., Part No., and Descriptions. ● OUT OF CIRCUIT BOARD RC Board FN905 Cooling Fan Sensor Ballast Board Board FN902 Cooling Fan Power DC Board Main Board Power AC Board Audio Board FN906...
  • Page 69 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 015 8704 TR 2SC2812-L6-TB ASSEMBLIED BOARDS 405 015 8902 TR 2SC2812-L7-TB 405 163 1602 TR 2SC2812N-L6-TB0 610 308 1724 ASSY,PWB,MAIN MH7A 405 163 1701 TR 2SC2812N-L7-TB0 610 301 1950 ASSY,PWB,TEMP.SENSOR MC3A 405 173 9803...
  • Page 70 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 163 1701 TR 2SC2812N-L7-TB0 Q145 405 014 4509 TR 2SC2412K T146 R 405 173 9803 TR 2SC3928A1R 405 014 4608 TR 2SC2412K T146 S 405 173 9902 TR 2SC3928A1S 405 015 8704 TR 2SC2812-L6-TB...
  • Page 71 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 014 4608 TR 2SC2412K T146 S 405 014 4608 TR 2SC2412K T146 S 405 015 8704 TR 2SC2812-L6-TB 405 015 8704 TR 2SC2812-L6-TB 405 015 8902 TR 2SC2812-L7-TB 405 015 8902 TR 2SC2812-L7-TB...
  • Page 72 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 163 1602 TR 2SC2812N-L6-TB0 405 002 0407 TR 2SA1037K T146 S 405 163 1701 TR 2SC2812N-L7-TB0 405 002 6706 TR 2SA1179-M6-TB 405 173 9803 TR 2SC3928A1R 405 002 6904 TR 2SA1179-M7-TB 405 173 9902...
  • Page 73 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 173 9803 TR 2SC3928A1R 405 014 4608 TR 2SC2412K T146 S 405 173 9902 TR 2SC3928A1S 405 015 8704 TR 2SC2812-L6-TB Q5132 405 134 5905 TR 2SA1037AK-T146-R 405 015 8902 TR 2SC2812-L7-TB...
  • Page 74 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description IC3252 409 416 6406 IC BA033FP-E2 IC813 409 462 2407 IC TC7SZ08FU-(TE85L) 409 410 1001 IC UPC2933T-E1 IC814 410 362 6501 IC TC74LCX541FT IC3253 409 416 6406 IC BA033FP-E2 IC815 410 362 6501...
  • Page 75 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C148 403 283 6309 CERAMIC 1U Z C218 403 283 6309 CERAMIC 1U Z C1501 403 164 0204 CERAMIC 0.1U Z C219 403 283 6309 CERAMIC 1U Z C1502 403 164 0204...
  • Page 76 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 403 349 4706 ELECT 220U M 6.3V C3191 403 145 9905 CERAMIC 22P J C267 403 164 0204 CERAMIC 0.1U Z C3192 403 233 3808 CERAMIC 10P C C268 403 322 7809...
  • Page 77 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C3502 403 164 0204 CERAMIC 0.1U Z C4132 403 215 2201 CERAMIC 0.01U K C3503 403 164 0204 CERAMIC 0.1U Z C4133 403 215 2201 CERAMIC 0.01U K C3504 403 164 0204...
  • Page 78 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C4233 403 164 0204 CERAMIC 0.1U Z 403 373 7704 ELECT 100U M 6.3V C4234 403 304 2105 ELECT 47U M 6.3V C532 403 164 0204 CERAMIC 0.1U Z C4236...
  • Page 79 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C6333 403 164 0204 CERAMIC 0.1U Z C8033 403 164 0204 CERAMIC 0.1U Z C6334 403 113 3805 CERAMIC 1000P K C804 403 155 1609 CERAMIC 33P J C6336 403 164 0204...
  • Page 80 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description RB310 645 021 0358 R-NETWORK 100X4 0.063W 645 028 5981 R-NETWORK 10X4 1/16W RB311 645 021 0358 R-NETWORK 100X4 0.063W RB8012 645 037 3107 R-NETWORK 10X4 0.063W RB312 645 021 0358 R-NETWORK 100X4 0.063W...
  • Page 81 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R1163 401 105 0504 MT-GLAZE 1K JA 1/16W R1823 401 105 0603 MT-GLAZE 10K JA 1/16W R1164 401 105 4601 MT-GLAZE 3.9K JA 1/16W R1833 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R1303...
  • Page 82 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R2504 401 105 0603 MT-GLAZE 10K JA 1/16W R312 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R2511 401 105 2805 MT-GLAZE 2.2K JA 1/16W R3121 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R2512...
  • Page 83 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R3214 401 105 0405 MT-GLAZE 100 JA 1/16W R3542 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R3216 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R3544 401 105 0504 MT-GLAZE 1K JA 1/16W R3217...
  • Page 84 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R4161 401 114 0908 MT-GLAZE 3.3M JA 1/16W R4284 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R4163 401 105 0603 MT-GLAZE 10K JA 1/16W R4285 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R4164...
  • Page 85 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R4844 401 105 0405 MT-GLAZE 100 JA 1/16W R5206 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R4845 401 105 0405 MT-GLAZE 100 JA 1/16W R5213 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R4847...
  • Page 86 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R6167 401 105 0504 MT-GLAZE 1K JA 1/16W R8092 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R6169 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R8093 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R6171...
  • Page 87 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R892 401 105 7909 MT-GLAZE 0.000 ZA 1/16W T1161 645 044 3626 FILTER,LP 7MHZ R893 401 105 7909 MT-GLAZE 0.000 ZA 1/16W T161 645 044 3626 FILTER,LP 7MHZ R894 401 105 7909...
  • Page 88 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description D3252 407 149 0807 DIODE 1SS355-TE-17 TRANSISTOR D3253 407 149 0807 DIODE 1SS355-TE-17 Q011 405 134 5905 TR 2SA1037AK-T146-R D451 407 149 0807 DIODE 1SS355-TE-17 405 147 2205 TR 2SA1037AK-S-T146 D4801 407 223 0501...
  • Page 89 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description IC5581 409 404 6302 IC M62320FP R5504 401 036 9904 MT-GLAZE 560 JA 1/8W R5506 401 105 0504 MT-GLAZE 1K JA 1/16W CAPACITOR R5507 401 105 5301 MT-GLAZE 4.7K JA 1/16W C001...
  • Page 90 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 163 1602 TR 2SC2812N-L6-TB0 405 015 8902 TR 2SC2812-L7-TB 405 163 1701 TR 2SC2812N-L7-TB0 405 163 1602 TR 2SC2812N-L6-TB0 405 173 9803 TR 2SC3928A1R 405 163 1701 TR 2SC2812N-L7-TB0 405 173 9902 TR 2SC3928A1S...
  • Page 91 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C3082 403 164 0204 CERAMIC 0.1U Z R3036 401 105 0504 MT-GLAZE 1K JA 1/16W C3091 403 341 3905 POS-SOLID 100U M 6.3V R3037 401 105 0504 MT-GLAZE 1K JA 1/16W C3092...
  • Page 92 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R7309 401 105 7909 MT-GLAZE 0.000 ZA 1/16W D3073 407 149 0807 DIODE 1SS355-TE-17 R7312 401 105 0603 MT-GLAZE 10K JA 1/16W D3074 407 149 0807 DIODE 1SS355-TE-17 R7314 401 105 0603...
  • Page 93 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 173 9704 TR 2SA1235A1F 405 015 8704 TR 2SC2812-L6-TB Q2061 405 014 4509 TR 2SC2412K T146 R 405 015 8902 TR 2SC2812-L7-TB 405 014 4608 TR 2SC2412K T146 S 405 163 1602 TR 2SC2812N-L6-TB0...
  • Page 94 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C5004 403 321 2607 ELECT 10U M R2043 401 105 0504 MT-GLAZE 1K JA 1/16W C5006 403 323 8805 CERAMIC 2.2U Z R2044 401 105 0504 MT-GLAZE 1K JA 1/16W C5007...
  • Page 95 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R3888 401 105 0603 MT-GLAZE 10K JA 1/16W D1088 407 223 0709 ZENER DIODE 02DZ20Y(TPH3) R3889 401 105 7909 MT-GLAZE 0.000 ZA 1/16W D1089 407 223 0709 ZENER DIODE 02DZ20Y(TPH3) R3891 401 105 7909...
  • Page 96 MH7-MP-56t00 Electrical Parts List Key No. Part No. Description Key No. Part No. Description CONTROL BOARD ACCESSORIES 610 305 0195 ASSY,PWB,CONTROL MC3E 645 054 3135 CABLE,MOUSE SRAL 645 054 3142 CABLE,MOUSE SRAL 645 039 7219 CABLE,MOUSE SRAL CAPACITOR 645 063 6943 CABLE,USB C6801 403 164 0204...

  • Page 97: Mechanical Parts List

    ■ Mechanical Parts List MH7-MP-56t00 Note: Parts order must contain Chassis No., Part No., and Descriptions. ● CABINET PARTS M1-b M1-a -97-...
  • Page 98 MH7-MP-56t00 Mechanical Parts List ● OPTICAL PARTS L18: For R-panel L19: For G-panel L20: For B-panel L3-a: For R-panel L3-b: For G-panel L3-c: For B-panel (Polarized Glasses) L3-d: For R-panel L3-e: For G-panel L3-f: For B-panel (Optical Flters) -98-...
  • Page 99 MH7-MP-56t00 Mechanical Parts List -99-...
  • Page 100 MH7-MP-56t00 Mechanical Parts List L1-b L1-a (Zoom) (Focus) -100-...
  • Page 101 MH7-MP-56t00 Mechanical Parts List L7 L21 CAUTION: Part must be placed in specified direction when replacing the optical parts. Please see “Optical Parts Disassemblies” for further instructions. -101-...
  • Page 102 MH7-MP-56t00 Mechanical Parts List Key No. Part No. Description Key No. Part No. Description CABINET PARTS SCREWS 610 305 0720 ASSY,BUTTON-MC3E 411 001 2403 SCR S-TPG BIN 4X10 (Including Key No. 1-a to 1-d) 412 063 8006 SPECIAL SCREW(BLACK) 610 305 3943 CAP BUTTON POWER-MC3E 411 174 9308 BOLT HEX-SCT+SW+W 2.5X6...
  • Page 103 MH7-MP-56t00 Mechanical Parts List -103-...
  • Page 104 Boxlight 19332 Powder Hill Place Poulsbo, WA 98370-7407 USA www.boxlight.com U.S. and Canada 800-762-5757 International 360-779-7901 (MH7E) Sep. 2003 BB 400 Printed in Japan...
  • Page 105 MP-56t MH7-MP-56t00 These schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. MH7-MP-56t00, model MP-56t. File with the service manual No. SM5110524-00. Note: All the information of part numbers and values indicated on these diagrams are at the beginning of production.

  • Page 106: Parts Description And Reading In Schematic Diagram

    ■ Parts description and reading in schematic diagram MH7-MP-56t00 1. The parts specification of resistors, capacitors and Resistor Reading coils are expressed in designated code. Please check Example 1/2 D J 10K B the parts description by the following code table. 2.
  • Page 107 ■ Pin description of diode, transistor and IC MH7-MP-56t00 ● Diode ● Diode K: Cathode A: Anode ● Transistor/FET ● Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 ● IC ●...
  • Page 108 Diagrams & Drawings (MH7-MP-56t00)

  • Page 109: Schematic Diagrams

    ■ Schematic Diagrams INTERLOCK 1GJ10 R037 AUDIO OUTPUT K55D #274473K-02 D031 1GJ10 CN26B CN26A R031 1SS355 J10EG080G IC031 J10EH020N R032 1GJ10 NT55D-1 15VAUDIO P_FAIL AUDIO_R 1 1 GND P_FAIL K55A TDA1517ATW K903S K904S J10EP120G C031 C033 2 -5V K26A J11B J11B 25EM 25KZ...
  • Page 110 RGB-SW. L1001 IC3001 AD8185ARU F34EA407G PC1-R D1001 R1001 R1006 C1001 02DZ6.2YG PC1-G PC1_R C3006 1/3GJ75 1/16GJ100C 25KZ0.1GQF D1002 PC1-B K10A L1002 1 PC1-R 02DZ6.2YG F34EA407G J11B5650N PC1-H C3003 K10P D1003 R1002 R1007 C1002 6.3EM471M J11MD540G 02DZ6.2YG PC1-V 1/3GJ75 1/16GJ100C 2 GND COMPUTER-1 K10A1 D1004...
  • Page 111 C3171 IC1102 10KZ1U CG-BIN GQFZ R3171 BA033FP 1/16GJ3.3KC Q3171 CG-BIN C1131 3.3V_AV D1101 ;UPC2933T 6.3EM100WM R3172 R1116 R1115 3.3V_AV 1SS355 R3173 1/16GJ100C ;6.3EM100F1 1/16GJ R162 R165 1/16GJ100C L1105 1/16GJ 3.3KC 1/16GJ1KC 1/16GJ4.7KC L2PD100KG CG-GIN C1132 C1126 R3174 R161 C151 25KZ0.1GQFZ 25KZ0.1GQFZ 1/16GJ3.3KC 1/16GJ47KC...
  • Page 112 RB8010 R1EA1004G R8001 RB8013 ;R1A41004G RB8009 1/16GZ0C R1EA1004G R1EA1004G R8002 ;R1A41004G 1/16GZ0C ;R1A41004G D_BO7 D8031 D_BO6 IC8003 1SS355 D_BO5 5V_DVI TC4053BFT D_BO4 D_BO3 3.3V D8032 D_BO2 1SS355 C8001 L8001 D_BO1 6.3EM100WM L2PD2R2MG C8032 25KZ0.1GQFZ ;6.3EM100F1 D_BO0 C8004 C8031 10KZ1UGQFZ RB8008 6.3EM47WM C8002 R1EA1004G...
  • Page 113 3.3V L4201 3.3V 1/8GZ000 4201-126 3.3V L4231 3.3V_IP L6301 1/8GZ000 L4251 L2A7100KG C4202 C4233 6.3EM100WM 1/8GZ000 3.3V 25KZ0.1GQFZ ;6.3EM100F1 C4203 C_AD9 C4232 25KZ0.1GQFZ C4231 R4231 C4251 6.3EM47WM 1/16GZ0C R4262 6.3EM100WM AA AB AC AD AE AF ;6.3EM100F1 (FRM IC4281-17) GCLK_PW R4246 R4261 C4236...
  • Page 114 J11B2940G IC391 IC392 3.3V_SW3 BA033FPP SI-3025LSA NTU-1 IC8051 R391 R390 L8041 S3.3V TC74LCX74FT C8051 1GJ2.2 C394 L2A73R3MG R300 R392 KZ0.01GQFZ 6.3EM100WM 3.3V 1/10GJ330 1/16GZ0C 3.3V_SW3 AV/CG1 ;6.3EM100F1 R8052 S2.5V R1301 C8052 1/16GZ0C R399 C395 R1302 6.3EM47WM 1GJ2.2 AV/CG1 25KZ0.1GQFZ C391 R1303 C8041 C396...
  • Page 115 Q2501 L2501 2SA1203Y 1/8GJ10 15.5V 15VL R2501 1/16GJ R2502 1.5KC 1/16GJ 4.7KC P-FAIL R2503 1/16GJ D2501 4.7KC 1SS355 P-FAIL C2501 16EM10WR Q2502 ;16EM10F1 R2504 1/16GJ 10KC 3.3V C2513 L3501 C3504 L2511 L2A73R3MG 1/8GZ000 25KZ 25KZ TP15V 0.1GQFZ 0.1GQFZ 15.5V C2514 C2522 C2521 25EM...
  • Page 116 POWER CONTROL PHILIPS LENS POWER K20P AUDIO (TO LAMP BALAST) POWER K10Q K20Q SENSOR K26C FRONT K66F K10P K68A K56B J10EZ050G K26B LAMP K28B K28A BALAST 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 J10ML540G J10ML540G...

  • Page 117: Printed Wiring Board Diagrams

    ■ Printed Wiring Board Diagrams CAUTION This projector is isolated from AC line by using the internal converter transformer. Please pay attention to the following notes in servicing 1. Do not touch the part on hot side (primary circuit) or both parts on hot and cold sides (secondary circuit) at the same time.
  • Page 118 AV (SIDE:A) AV (SIDE:B) Audio “K55D” Q5062 K10X K10S K10T K10W C3809 C3811 IC3806 X3851 Q5002 R1060 C2096 Q5001 R2001 R5011 IC3852 C5013 L2023 Main “K8C/K8Y” Q3866 R3803 R2021 IC5001 Q5061 R2002 C5004 C3853 R3866 R3801 RB5001 R3802 Q5051 C1061 L2003 R1054 R2003...
  • Page 119 Main (SIDE:A) Audio “K55B” R6128 R6129 R6153 Q4181 X1101 Q3118 R1160 R4829 C4804 RC Front “K28A” Q3117 R162 R163 R164 IC6121 C1137 D4809 C4181 R4186 R158 C1123 D4811 R6142 Q4182 R3133 C4805 TPHAFC R4831 IC3101 IC1101 C3129 R5102 IC6131 R5103 C1126 C3128 Q1161...
  • Page 120 Main (SIDE:B) Sensor “K28B” C3109 R5121 R1112 IC1161 C5117 C3131 R6134 C1132 C3106 C5111 C3108 IC6111 Q1101 C1131 R159 C5167 C4105 L4101 D1101 C1119 L1105 C1127 C1118 C5114 R4864 C4806 R1111 C3194 L1103 C4123 R1113 C1121 D1102 C1122 R4865 L5161 Q4809 C4161 L5171...
  • Page 121 Control (SIDE:A) Control (SIDE:B) D6859 D6857 D6858 D6856 LAMP LAMP WARNING READY REPLACE TEMP R6854 R6852 R6853 R6851 R6808 POWER D6803 SW6808 C6803 R6856 R6859 R6865 R6869 R6868 R6867 R6814 R6866 R6864 R6858 P-UP R6863 R6862 SW6814 R6861 R6857 R6811 SELECT SW6812 R6809...

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