Download
Share
Print this page
Sanyo PLC-SU50 Service Manual
  1. Manuals
  2. Brands
  3. Sanyo Manuals
  4. Projector
  5. PLC-SU50
  6. Service manual

Sanyo PLC-SU50 Service Manual

Hide thumbs Also See for PLC-SU50:

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
PRODUCT CODE
1 122 219 00
(MB7A)
1 122 220 00
(PB7A)
1 122 220 02
(PB7C)
Multimedia Projector
FILE NO.
Model No. PLC-SU50
Original Version
Chassis No. MB7-SU5000
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
Literature is required.You must refer to
"Notices" to the Original Service
Manual prior to servicing the unit.
REFERENCE NO.
U.S.A., Canada,
Europe, Asia, Africa
U.K.
Service
SM
5110518-00

Advertisement

loading

Related Manuals for Sanyo PLC-SU50

Summary of Contents for Sanyo PLC-SU50

  • Page 1 FILE NO. SERVICE MANUAL Multimedia Projector Model No. PLC-SU50 U.S.A., Canada, Europe, Asia, Africa U.K. Original Version Chassis No. MB7-SU5000 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.
  • Page 2 ■ Optical Adjustments Before taking optical adjustments below, remove the Cabinet Top following to the “Mechanical Disassemblies”. Adjustments require a 2.0mm hex wrench and a slot screwdriver. When you adjust Integrator lens or Relay lens adjustment, you need to disconnect FPC cables of LCD panels on the main board. Optical adjustment requires a 2.0mm hex wrench and a slot screwdriver.
  • Page 3 Optical Adjustments Integrator lens adjustment Turn the projector on by a state of without FPC cables. Project all of lights on the screen. Adjust the adjustment base of integrator lens assy 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 , and adjust the slot...
  • Page 4 Optical Adjustments Relay lens-Out adjustment Turn the projector on by a state of without FPC cables. Project all of lights on the screen. Adjust the adjustment base of relay lens assy to make color unifor- mity in white. If the shading appears on the left or right of the screen as shown in White Fig.3, loosen 1 screw , and adjust the slot...
  • Page 5 ■ Electrical Adjustments ● Service Adjustment Menu Operation To enter the service mode To enter the “Service Mode”, press and hold the MENU and INPUT buttons 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 6 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 7 Electrical Adjustments Clamp adjustment [PC] Clamp adjustment [COMPONENT] 1. Receive the 16-step grey scale computer signal with 1. Receive the 16-step grey scale component signal Computer2 [RGB] mode. with Computer2 [Component] mode. 2. Enter the service mode. 2. Enter the service mode. TPG1 TPG1 3.
  • Page 8 Electrical Adjustments Sub Gain adjustment [PC] Video Center adjustment 1. Receive the 16-step grey scale computer signal with 1. Receive the 16-step grey scale computer signal with Computer2 [RGB] mode. Computer2 [RGB] mode. 2. Enter the service mode. 2. Enter the service mode TPG1 TPG1 3.
  • Page 9 Electrical Adjustments 1 1 2 ⁄ 1 Black Reference adjustment Gamma adjustment 1. Receive the 16-step grey scale computer signal with [PC-GAMMA ADJUSTMENT] Computer2 [RGB] mode. 1. Receive the 16-step grey scale computer signal with 2. Enter the service mode. Computer2 [RGB] mode.
  • Page 10 Electrical Adjustments ● Test Points and Locations MAIN BOARD IC1851 IC5351 -26-...
  • Page 11 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 12 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description ✻ Gamma Adjustment G_GAM_BRT 2014/2014/2014/2014 0 ~ 2047 [Addr:0x2030-2031] Signed 11bit Ignore lower 2bit PC/AV/DVI/HDCP ✻ White Balance Adjustment R_GAM_BRT 2014/2014/2014/2014 0 ~ 2047 [Addr:0x202E-202F] Signed 11bit Ignore lower 2bit PC/AV/DVI/HDCP ✻...
  • Page 13 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description Group 100 H8 Option Lamp Time Monitor 0~8738 Read Only RS232C Baudrate 0 ~ 1 0: 19200bps1: 9600bps Cooling Time 1 ~ 15 Cooling time1:30 sec.3:90 sec.15:450 sec. Hi-Land SW 0 ~ 3 0: Normal Mode1~3: High-Land Mode 1-3 Lamp Total Time...
  • Page 14 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description ECO_VALU_FAN1_MIN Minimum Control Value for FAN1 at Eco Mode ECO_VALU_FAN1_MAX Maximum Control Value for FAN1 at Eco Mode ECO_VALU_FAN2_MIN 0~255 Minimum Control Value for FAN2 at Eco Mode ECO_VALU_FAN2_MAX Maximum Control Value for FAN2 at Eco Mode HINOR_TEMP_FAN1_MIN Control Start Temperature for FAN1 at Highland Normal Mode...
  • Page 15 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description L1 HIDIFFTH 0 ~ 255 L1 HIMOTHR 0 ~ 16 L1 LWMOTHR 0 ~ 16 L2 LWDIFFTH 0 ~ 255 L2 Still picture L2 HIDIFFTH 0 ~ 255 L2 HIMOTHR 0 ~ 16 L2 LWMOTHR 0 ~ 16...
  • Page 16 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description HDTV WIDTH 0 ~ 63 Group: 514 HDTV 575p Gakaku (Component) HDTV TOTAL DOTS 1253 0 ~ 4096 HDTV DISP DOTS 0 ~ 4096 HDTV H BACK PORCTH 0 ~ 4096 HDTV V BACK PORCTH 0 ~ 4096 HDTV DISP LINE...
  • Page 17 Electrical Adjustments Adjustment Item Initial Value Range Input source / Description Group: 523 RGB 720p Gakaku RGB TOTAL DOTS 2203 0 ~ 4096 RGB DISP DOTS 1666 0 ~ 4096 RGB H BACK PORCTH 0 ~ 4096 RGB V BACK PORCTH 0 ~ 4096 RGB DISP LINE 0 ~ 4096...
  • Page 18 ■ Chassis Block Diagrams Chassis over view R-PANEL G-PANEL B-PANEL IC1451 DIGITAL ENHANCER IC201 IC1861 INVERTER IC5201 IC5341 IC5351 RGB/COMP-SW SYNC SEP. SYNC SEP. Y,Cb,Cr Y,Cb,Cr IC1201 PC1/PC2-SW IC5061 AUDIO OUT IC5021 AUDIO-AMP. IC5001 AUDIO CONTROL IC001 AUDIO-SW D-SUB DVI-I AUDIO -34-...
  • Page 19 Chassis Block Diagrams Inputs & video signal processing stage IC1301 BUFFER <TC74LCX> IC5201 RGB/COMP-SW <AN5870> IC5341 IC5351 SYNC.SEP COMP.SYNC <BA7078> DET<TA1370> IC1201 IC5301 IC3101 PC1/PC2-SW SYNC-SW VIDEO DECIDER <TC4053> <AN5870> <TB1274> Y,CR,CB IC3061 RGB ANALOG <AD8074> D-SUB DVI-I DIGITAL/ ANALOG RGB S-VIDEO C-VIDEO -35-...
  • Page 20 Chassis Block Diagrams LCD panel driving stage IC2441 IC1441 IC401 BUFFER BUFFER LCD DRIVER& GAMMA CORRECTION <CXD3536> IC1391 IC1451 DIGITAL ENHANCER IC2341/IC2342 <> BUFFER I/F -36-...
  • Page 21 Chassis Block Diagrams Audio signal processing circuit Q5043 VOL_SW5 PC: L AV: H AUDIO-IN Q001 Q5041 SP901 AUDIO-IN Q002 Q5042 MUTE:L Q5001 MUTE_SP MUTE:H Q053 AUDIO Q054 Q5061 MUTE:H Q051 AUDIO_MUTE5 Q052 K10U 17-18 15-16 13-14 MUTE:H MUTE: H D0_PW D15_PW PC: H AV: L...
  • Page 22 Chassis Block Diagrams System controls IC281 IC6221 IC1851 <M62393> <M62392> <M62320> IC5371 BUFFER IC1881 BUFFER IC2323 IC2324 IC2321 <TC74LCX574> <TC74LCX574> <TC74LCX541> IC301 IC801 SYSTEM SUB CPU CONTROL <PW463> -38-...
  • Page 23 Chassis Block Diagrams Power supply & protection circuit IC631 POWER OSC. <STR-Z2156> IC621 P.F.CONTROL <FA5502> Power-On:H Power-On:H IC1851 IC1881 BUFFER <M62320> IC801 SUB CPU -39-...
  • Page 24 Chassis Block Diagrams Fan control circuit Q671 FN906 15.5V D69D FN905 D67P Q672 Q67P IC671 D67Q FN904 Q67A D69B P_Fail: H Q681 FN903 FN902 D68P Q682 Q68P IC671 D68Q D69A FN901 Q68A D69C P_Fail: L Q69A P_FAIL Power Error: On SIGNAL/MODE POWER-ON STAND-BY...
  • Page 25 ■ Troubleshooting No Power This projector provides a function which can be specified a defective area simply by indicating the LEDs on the con- trol panel. Connect the AC cord and press the Power button once and then check the LED indication. - When all of LED indicators are not lighting, the symptom indicates that the primary power supply circuit does not operate properly.
  • Page 26 Troubleshooting No Picture Check following steps. No picture with all of Check signal processing stage and LCD driving stage; input sources Check RGB S&H signals at test points TPB1, TPB2, TPG1, TPG2, TPR1, TPR2. Check PSIG signals at test points TPPSIG and TPZPSIG. Check power supply circuit 15.5V and peripheral circuit.
  • Page 27 Troubleshooting From previous page No picture with S-VIDEO Check AV source selecting stage; input source Check S-video signal (Y/C) on the AV board. S-C signal is applied to pin 43 of IC3101<Video Decoder>, and S-Y signal is applied on pin 44 of IC3101. S_SW signal (S-VIDEO:L) is input to pin 6 of IC2321<I/O>.
  • Page 28 Troubleshooting No Sound Check following steps. Check if the audio sig- Check IC001 and peripheral circuit. nal is observed at pins 2 Check the switching voltage at pins 9 and 10. and 13 of IC001. pin9: L pin10: L: PC audio input pin9: L pin10: H: AV audio input Check if the audio sig- nal is observed at pins 3...
  • Page 29 ■ Control Port Functions ● System Control & I/O Port Table (IC801) Pin No. Name Function Name Function Action PE5/D5 POWER_SW Power_SW "H":On PE6/D6 SCL 5 IIC Bus 5 SCL “L ”: active PE7/D7 LAMP_SW Lamp LED “H”: On PD0/D8 DATA0 Data Bus 0 PD1/D9...
  • Page 30 Control Port Functions Pin No. Name Function Name Function Action Operation Mode Control2 “H” Fixed PF7/Ø Ø ØOutput PF6/AS ASOutput PF5/RD Read Signal SRAM Control PF4/HWR Write Signal (Upper 8 bits) SRAM Control PF3/LWR/ADTRG/IRQ3 SRAM_INTR DualRam Interrupt “L ”active PF2/WAIT TURBO_CS Chip Select for Turbo Gate Array “H”: active...
  • Page 31 Control Port Functions ● IIC Bus DA Converter (M62393, IC281) Port Functions Pin No. Name Function Action Reset Fixed “H” IIC SCL Active “L ” IIC SDA Active “L ” Not used Not used Not used Not used VrefL D/A converter lower ref. voltage Connected to GND VrefU1 D/A converter upper ref.
  • Page 32 Control Port Functions ● Parallel Bus DA & I/O Port Functions IC Ref. No Signal Name Function Note IC2321 CS_IN Not used TC74LCX541 SC_SW Scart Selection SIgnal input L: Scart on S_SW S-Video Selection Signal input L: S-Video on CARD_IN Imager Card Signal input L: Imager on W_LAN_IN...
  • Page 33 ■ Waveform CVBS <K3Y-51> Y signal <IC3101-5> C signal <IC3101-7> HSYNC signal <IC3101-9> VSYNC signal <IC3101-4> GHS signal <TGHS_1> GVS signal <TGVS> DHS signal <TDHS> DVS signal <TDVS> R-S&H signal <TPR1> G-S&H signal <TPG1> B-S&H signal <TPB1> PSIG signal <TPPSIG/TPZPSIG> -49-...
  • Page 34 ■ Schematic Diagrams TERMOSTAT (SET TO OPEN AT 90+/-5°C) SW902 POWER FACTOR CORRECTION S10B5540N S10B5540N AC CORD C611 C613 LF901 1000KK POWER 400GK U20B30101 1000NH 2.2DV LENS AC100-120V (LIVE) C601 C601 L601 L601 C602 C602 F601 VA601 R601 275GM F35B 275GM AC200-240V 6.3A250V...
  • Page 35 C202 C201 25KZ 25KZ R1001 R1003 Q201 L1001 C1001 R1002 R1004 C200 IN2_R 6.3EM K10V 220WM D1001 R1013 J11MD400G R201 1/16 1/16GJ 6.2B GZ0C R200 100C PC1-R R1016 R231-R233 R231 R202 K10V_39 1/16GJ 1/16GJ PC1-R 1/16GZ0C 1/16GZ0C 1/16GZ0C 100C Q1001 1.5KC R205 K10V_37...
  • Page 36 D1281 1SS355 J10ML400G P_FAIL P-FAIL PC1/PC2 RGB/COMP PC1-R K3V_39 R1284 IC1281 1/16GJ SI-3012LU-TL K3V_37 PC1-G 390KC PC1-B K3V_35 R1285 C1202 C1283 C5202 R1201 1/16GF R5201 1/16GJ 1/16GJ 10KZ1U 25KZ0.1 100KC R1281 10KZ1U GQFZ GQFZ 1/16GJ GQFZ T12V 15.5V K3V_29 RX2+ R1286 R1283 C1282...
  • Page 37 "K3V" DIGITAL R228 PTA6 R229 S3.3VAD PTA7 C229 C231 C232 C233 C236 C228 L202 25KZ0.1 25KZ0.1 25KZ0.1 25KZ0.1 25KZ0.1 L2PF2R2MG 25KZ0.1 GQFZ GQFZ GQFZ GQFZ GQFZ GQFZ C237 6.3EM220WM :6.3EM220F1 C226 C227 R223 L203 16KK0.082 KK8200 1/16GJ L2PF2R2MG 470C C6215 C6218 6.3EM100 C239...
  • Page 38 ROMWE S3.3V IC2371 S3.3V IC2341 TC7SZ08FU-(TE85L) R2302 R2303 R2372 R2341 TC74LCX245FT R2343 C2341 1/16 1/16 1/16 1/16 GZ0C GZ0C R2381 1/16GZ0C 25KZ0.1 GZ0C GZ0C GQFZ 1/16GJ3.3KC RAMWE DIR_IN J30B RAMOE A1_PW 1640G D_R0 BHEN_N R2371 ROMOE 1/16GZ0C R2342 D_R1 1/16 D0_PW D0_PW D8_PW...
  • Page 39 D6831 LAMP REPLACE(Y) D6832 TEMP WARNING(R) D6833 STAND-BY(RED ON) S3.3V LAMP ON (GREEN ON) Q1821 R1821 1/16GJ R6831 536P 4.7KC D6831 1/16GZ0C H8_SDA1 H8_SDA1_5 J10EZ120G C6202 SML-210YTLG L6201 6.3EM R6832 K8A_1 L2PD3R3MG 47WM D6832 1/16GZ0C :L2PF3R3MG R6858 Q1822 IC6211 SML-210LTMG K8A_2 R1822 1/16GJ...
  • Page 40 C2561 C2562 R2561 R2563 R2564 1/8GZ 1/16GJ 16EM100 25KZ0.1 D2561 1/16GJ GQFZ 1SS355 270C 270C (D:F1) 15.5V P_FAIL P-FAIL D2562 1SS355 R2562 1/16GJ 270C IC2566 R2567 R2568 R-PANEL R2566 C2564 C2566 C2563 16EM100 25KZ0.1 16KZ 2.2FA (D:F1) GQFZ IC1401 J11EA321G TC74ACT240FT 3.3V C1401...