Toshiba P42LSA+ Service Manual Download Page 1

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SERVICE MANUAL

LCD FLAT PANEL DATA DISPLAY UNIT

P42LSB
P47LSB

Summary of Contents for P42LSA+

Page 1: ...1 SERVICE MANUAL LCD FLAT PANEL DATA DISPLAY UNIT P42LSA P47LSA P42LSB P47LSB ...

Page 2: ...ONS 16 ACCEPTABLE SIGNAL TYPE 17 WIRELESS REMOTE CONTROL OPERATION 18 Entering to the Adjustment MENU 22 Wireless Remote Control operation Chart 21 RS232C PC Control 27 Setting ID 28 Adjust Mode 29 Function in SPECIAL mode 31 Function in SERVICE mode 32 Control via RS232C Command Protocol list 33 Status Report Z Commands 37 ASCII Hex Conversion Chart 39 FIRMWARE REWRITE 39 DISASSEMBLE 40 P42 47LSA...

Page 3: ... Reverse the AC plug at the AC outlet and repeat AC voltage measurements for each exposed metallic part Voltage measured must not exceed 5 25V rms This corresponds to 3 5mA AC Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately AC VOLTMETER 0 15MFD Place this probe on each exposed metallic part Good earth ground such as a water pipe conduit etc 150...

Page 4: ...d Items to be confirmed with a qualified dealer before installation Items to be observed upon use of this equipment For abnormality or trouble WARNING If during operation the unit emits smoke or odor cut off the power circuit breaker immediately and disconnect the power plug from the outlet After confirming smoke has stopped contact your dealer for repair If you should continue using the equipment...

Page 5: ...ruption of business or any loss of recorded data whether used during normal operation or misuse of the product Care Disposal Cleaning screen and cabinet Turn of the power clean the screen and cabinet with a soft dry cloth Do not scratch the panel the front polarizer plastic screen is easily damaged We recommend that you do not use any proprietary polishes or solvents on the screen as this may caus...

Page 6: ...ot connect disconnect the power plug with wet hands It may cause electric shocks Do not step on the equipment or place heavy items on it This may cause the unit to fall possibly causing injury or damage which may also cause fire or electric shocks When leaving the equipment out of use for a long time make sure to disconnect the power plug from the outlet for safety When the power supply is turned ...

Page 7: ...upporting the additional lord When mounting the equipment from a ceiling or other overhead horizontal surface ensure that all fixings are secure and able to support the load Also ensure that the horizontal surface can support the additional load and that any fixings used do not cause a trip or other safety hazard Confirm that the installation procedure are undertaken with sufficient allowance and ...

Page 8: ...onditions 1 Install the equipment in places with poor ventilation 2 Place the equipment facing up sideways or upside down 3 Place the equipment on a carpet or bedding 4 Cover the equipment with a cloth or curtain 5 Place packages around the equipment or lean place items against the equipment 6 Placing the equipment on a table unstable base or directly against a wall Rear access is required for per...

Page 9: ...this may also build up an electrostatic charge Do not rub it with a hard object the screen may be easily damaged Never use a chemical duster or solvent surface plastic is easily damaged Care of the cabinet After switching the power supply off wipe gently with soft cloth When using a chemical duster follow the maker s precautions Care of the air circulation The air intake holes should be regarded a...

Page 10: ...reasonably low as P42LSA P42LSB 250W P47LSA P47LSB 300W FUNCTION OF PANEL PUSH buttons I R Remote Control Control push buttons at side Front view of the product LCD Display Panel Power ON Stand by Indicator Wireless Remote Control Receiver Power on green No signal orange Stand by yellow Main Menu select DN Enter Menu or Exit Main Menu select UP Select Menu or Value Select Menu or Value Power Switc...

Page 11: ...11 P42LSA P42LSB DIMENSIONS Size mm inch 440 mm 17 34 inch 1026 mm 40 42 inch 200 mm 7 88 inch 200 mm 7 88 inch 200 mm 7 88 inch 200 mm 7 88 inch 240 mm 9 46 inch 619 mm 24 39 inch 122 8 mm 4 84 inch ...

Page 12: ...12 P47LSA P47LSB DIMENSIONS Size mm inch 520 mm 20 5 inch 1139 4 mm 44 86 inch 200 mm 7 88 inch 200 mm 7 88 inch 200 mm 7 88 inch 200 mm 7 88 inch 280 mm 11 inch 684 4 mm 26 95 inch 126 2 mm 4 97 inch ...

Page 13: ...B INPUT Two kinds of RGB signal selection as DVI or Analog Signal Input Terminal Type Suitable signals RGB DIGITAL IN DVI D 24 pin RGB DIGITAL no HDCP RGB ANALOG IN D Sub 15 pin RGB ANALOG CONTROL INPUT OUTPUT RS232C control or CT90000 wired remote control terminals available Signal Input Terminal Type Suitable signals RS232 IN D Sub 9 pin RS232C signal from PC RS485 IN OUT RJ45 RJ45 signal link T...

Page 14: ...ger use better quality cable to avoid signal loss or degrade the signal components Supplied cables are not the best quality for daisy chain using adaptors Input Output terminals of LSB model HD SDI Note 1 BNC Category 5 Video cables are not included 2 DVI terminal Analog input is not used 3 Catrgory 5 input output are Link only external signal is not properly be worked 4 Y Cb Cr input works up to ...

Page 15: ...rks 1 Power Switch Turn ON and OFF main power ON OFF 2 AC Inlet AC 100 240V 50 60Hz input 3P plug POWER SWITCH AND POWER INDICATOR AC power source is turned on off with the Main Power Switch When the Power Switch is turned on the Power Lamp Indicator lights in green and the unit enters active state It takes several seconds typically till an image is shown after Power Switch is turned on In the act...

Page 16: ...es P47LSA LSB Size 1139 x 683 x 127 mm 44 84 x 26 9 x 5 inches Weight P42xxxx 39 kg 86 lbs P47xxxx 52 kg 115 lbs Accessories Owner s Manual Power RGB cables IR remote control Video Input Terminal Video Composite Input US pin Level Video Input 1 0Vp p composite video PAL NTSC Y C Input Terminal Y C separate Inputs Y C terminals Level Luminance 1 0Vp p Color 0 3Vp p Y Cb Cr Input Y Pb Pr compatible ...

Page 17: ...48 1280 48 1066 3 38 1024 1 O O 17 VESA SXGA 1280x1024 79 976 75 025 135 000 P P 1688 144 248 1280 16 1066 3 38 1024 1 O 18 VGA TEXT 720x400 31 469 70 087 28 322 N P 900 108 45 720 27 449 2 35 400 12 O O 19 UXGA50 1600x1200 62 50 50 00 135 00 2160 192 304 1600 64 1250 3 46 1200 1 O 20 UXGA60 1600x1200 75 00 60 00 162 00 2160 192 304 1600 64 1250 3 46 1200 1 O 21 640x480 35 000 66 667 30 240 N N 86...

Page 18: ...lue Enter or Set AUTO Automatic picture set EXIT Quit function item PIP Display PiP on off SWITCH exchange Main PiP SOURCE Input selection Pro Adjust Area This is the operation of special adjustment similar to RS232C controls OSD becomes different from Normal adjustment Magnification Layout and Pix Effect Memory need to use this Pro Adjust mode To replace the battery inside 1 Push a little as 1 in...

Page 19: ...a full on off switch The Power push button on the remote control is a soft on off switch Be sure to turn on the hard switch first to operate Now depress remote control Power button to place display in STAND BY or ON mode Key button on the remote control indicates that the side key switch on the display also works POWER selection of ON or STAND BY lamp and driver power supply are reduced MENU to en...

Page 20: ...s OSD adjust mode On Screen Display Menu size and position control The bottom most icon is for factory reset or some other items In this page a language selection in which English Japanese and Chinese can be set and some more items be found These items are explained in the reference chart on the next page Wireless remote control operation keys with enlarged above picture silver colored background ...

Page 21: ...21 ...

Page 22: ...TER or MENU to do adjustments Item selection from these 6 items is done by UP DOWN key To escape from any adjustment such as Brightness EXIT key is to be pushed With this new remote control some actions to use ENTER key MENU also takes place When Input selection menu is selected When DISPLAY menu is selected Once the adjustment item is selected by UP or DOWN key press the LEFT or RIGHT key to make...

Page 23: ...rtical position adjustment is also placed in this page Use EXIT twice escaping from any adjustment mode In some pictures at bottom area there is an operation guide area where which button is to be used Before pushing ENTER button and after this operation guide changes its indication there are mostly two different indications as indicated by 1 or 2 Staying in IMAGE page and pressing DOWN key enters...

Page 24: ... will return back to the other adjustment when escape from any adjustment EXIT key is to be used As for the Color Temperature selection please note that the color temperature selections are not selecting the lamp temperature but change adjustment value as increased R G or B or even decrease thus it will show as like as such color but quasi color makings not changing lamp color temperature by this ...

Page 25: ...t colors These lines are possible to display even in Normal mode right now it is in Adjust mode by using UP button then EXIT to off PiP Setting COLOR and PiP CONTROL In PiP CONTROL Menu page adjustment item This picture below next page shows that OSD is is selected by Up Down key then adjustment selected Item selection is by Up Down and or selection is by Left Right keys adjustment is by Left Righ...

Page 26: ...t in OSD Light Sensor The light sensor is placed at the power LED indicator area it is used to activate or change the brightness of the panel when getting darker in environment or shut off light sensor function Light sensor senses the intensity difference and when it became dark sensor senses The light sensor value adjustment will decide how much brightness is necessary when sensed Setting this le...

Page 27: ...osite Video Video2 Y C video Video3 Y Cb Cr Y Pb Pr up to 480p DVI PC digital signal no HDCP complied Adjust Mode Press ADJUST to enter Adjust Mode To exit Adjust Mode press ADJUST twice one press will request confirmation that you wish to exit Adjust Mode In this mode all the adjustments are possible After displaying this OSD any adjust mode can be set Below shows when CONTRAST button is clicked ...

Page 28: ...B1 B2 BF up to FF totaling 256 sets with an assigned ID Before assigning ID it is necessary to wire RS232C cable from PC Video Wall Controller software installed and RJ45 link With the new wireless remote control it is also possible to assign ID number To assign an ID number we need to enter ADJUST mode at first with selection of ID area by software Then click ID ALL button to enter ID mode OSD be...

Page 29: ...ain even after factory reset or firmware rewrite until ID be re assigned Clearing I D Press ADJUST to enter Adjust Mode and then press ID ALL to enter ID Mode in the Input ID Number Page then press ID CLR to erase the current I D number By wireless remote ADJUST ID ID CLR Setting I D Press ID ALL so that INPUT ID NUMBER appears and enter the desired 2 digits I D using the alpha numeric keys Press ...

Page 30: ...is occasion CONT will control the overall level of the image and GAIN will take care for PC signal The GAIN has an ADJ R ADJ G or ADJ B selection This GAIN adjustment is for RGB HV signal only not for video Cutoff and Drive Unlike as CRT or DLP type these LCD monitors have not final stage adjustment such as Cut off and Drive No function applied for these buttons CLOCK frequency adjustment and PHAS...

Page 31: ... picture of effect itself as like as above picture for example ADJUST MAG UP 2 ENTER ENTER MAG this will make 2x2 picture Select LAYOUT if needed as LAYOUT NUMBER UP ENTER and so on as like as MAG Adjust position to make picture matched If small additional MAG needed then UP RIGHT DOWN and LEFT will add small additional sizes while in MAG mode Push WRITE to memorize After making such picture effec...

Page 32: ...nexpected touch that may change screen condition 1 ON or 0 OFF selection is possible 5 Video AGC ON OFF This is to select Video signal AGC ON OFF function AGC ON can change contrast sometimes 7 PIP and Position This is to use Picture in Picture operation ON 1 OFF 0 8 DPMS selection ON OFF Display Power Management System ON OFF selection 9 Firmware Version display This will indicate the firmware ve...

Page 33: ...or warranty to any damage or malfunctions by using this software When personalized control is necessary Toshiba will not supply any support software but simply RS232C command Protocol List Control via RS 232C Command Protocol list Table 1 RS 232C pin connection configuration Pin No Signal name Signal items I O in projector 1 CD Not used 2 RXD Reception data Output 3 TXD Transmission data Input 4 D...

Page 34: ... 31 03 Select White Balance 2 6500K 02h ID WB2 03h 02 ID 57 42 32 03 Select White Balance 3 5400K 02h ID WB3 03h 02 ID 57 42 33 03 Select White Balance 4 3200K 02h ID WB4 03h 02 ID 57 42 34 03 Select White Balance 5 User Defined 02h ID WB5 03h 02 ID 57 42 35 03 ADJUST Enter ADJUSTMENT Mode 02h ID AJS 03h 02 ID 41 4A 53 03 Exit ADJUSTMENT Mode 02h ID AJN 03h 02 ID 41 4A 4E 03 MODE 1 User Defined La...

Page 35: ...splay position pixel base adjustment 02h ID POS 03h 02 ID 50 4F 53 03 CLOCK Clock frequency adjustment 02h ID CLK 03h 02 ID 43 4C 4B 03 PHASE Phase adjustment 02h ID PHS 03h 02 ID 50 48 53 03 MAG Enters Magnification mode 02h ID MAG 03h 02 ID 4D 41 47 03 LAYOUT Enters Layout Mode 02h ID LAY 03h 02 ID 4C 41 59 03 Use the following commands for MAG and LAYOUT 1x1 mode 02h ID VN1 03h 02 ID 56 4E 31 0...

Page 36: ...56 4E 31 03 Power setting 2 02h ID VN2 03h 02 ID 56 4E 32 03 Power setting 3 02h ID VN3 03h 02 ID 56 4E 33 03 Power setting 4 02h ID VN4 03h 02 ID 56 4E 34 03 Power setting 5 02h ID VN5 03h 02 ID 56 4E 35 03 Power setting 6 02h ID VN6 03h 02 ID 56 4E 36 03 Power setting 7 02h ID VN7 03h 02 ID 56 4E 37 03 Power setting 8 Highest 02h ID VN8 03h 02 ID 56 4E 38 03 8 Enter Flesh Tone Adjust Mode 02h ID...

Page 37: ...s ID 02h ID IDS 03h 02 ID 49 44 53 03 0 Inputs a 0 02h ID VN0 03h 02 ID 56 4E 30 03 1 Inputs a 1 02h ID VN1 03h 02 ID 56 4E 31 03 2 Inputs a 2 02h ID VN2 03h 02 ID 56 4E 32 03 3 Inputs a 3 02h ID VN3 03h 02 ID 56 4E 33 03 4 Inputs a 4 02h ID VN4 03h 02 ID 56 4E 34 03 5 Inputs a 5 02h ID VN5 03h 02 ID 56 4E 35 03 6 Inputs a 6 02h ID VN6 03h 02 ID 56 4E 36 03 7 Inputs a 7 02h ID VN7 03h 02 ID 56 4E ...

Page 38: ...b1 wb2 wb3 wb4 wb5 77 62 31 32 33 34 35 WB status ZMD 5A 4D 44 nor adj spc ser idm 6E 6F 72 61 64 6A 73 70 63 Mode status ZCT 5A 43 54 h h h hex code return by decimal Contrast value ZBT 5A 42 54 h h h hex code return by decimal Brightness value ZCL 5A 43 4C h h h hex code return by decimal Color value ZTN 5A 54 4E h h h hex code return by decimal Tint value ZSH 5A 53 48 h h h hex code return by d...

Page 39: ... indication Here is a chart to convert ASCII Hex ASCII Hex ASCII Hex ASCII Hex ASCII Hex ASCII Hex ASCII Hex A 41 M 4D Y 59 i 69 u 75 0 30 B 42 N 4E Z 5A j 6A v 76 1 31 C 43 O 4F k 6B w 77 2 32 D 44 P 50 l 6C x 78 3 33 E 45 Q 51 a 61 m 6D y 79 4 34 F 46 R 52 b 62 n 6E z 7A 5 35 G 47 S 53 c 63 o 6F 6 36 H 48 T 54 d 64 p 70 7 37 I 49 U 55 e 65 q 71 8 38 J 4A V 56 f 66 r 72 9 39 K 4B W 57 g 67 s 73 L...

Page 40: ...to the right 115200 baud double click the Gprobe exe short cut software will start Select Option at pull down menu finish Connection Set up F10 such as Protect Serial 1 Port Com 1 example speed 115200 OK Look for Commands at pull down menu and click at bottom Select Batch look for file of FlashRom_8 OK then rewrite will start When several E PROM need to rewrite i e E PROM need to remove and insert...

Page 41: ...LCD monitor on a desk covered with some soft material such as blanket We recommend preparing a plastic container or cup 5 or 6 pcs to sort out different screws this will help to re assemble the set 1 Remove stand if attached by two screws see 1 screws 2 Remove 8 pcs of 8mm screws used for wall mount fastening screws 2 3 Remove 4 pcs of 6mm screws used to fasten handles 3 4 Remove all 12 pcs of rea...

Page 42: ...nents or electronic parts It is highly recommended to use static free strap and table to service RS232C Baud rate is set to 9600 baud RJ45 link is to connect between the same monitors in series an external control signal to this RJ45 may not work properly Power Supply 5V not used 18V Main process 24V Lamp ballast Lamp Power CN1 has 2 more wires this is Master and all the others CN2 are slave conne...

Page 43: ... sure to supply input signals before the test Also check the output at CN2 LCD Drive Signal 2 Check if internal test signal appears or not by pressing I R wireless remote control ENTER and EXIT Key with the sequence of ENTER ENTER EXIT EXIT ENTER and EXIT The monitor will enter its Test mode and display internal test signal these are mostly flat field white red green and also some mixed colors Thi...

Page 44: ...44 P42LSA Mechanism and Parts ...

Page 45: ...45 P47LSA Mechanism and Parts ...

Page 46: ...46 ...

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