Brochure
Page 1
... three-year parts and labor limited warranty, first-year Express Exchange® and one-year lamp warranty. ** Super bright The ViewSonic PJ750 projector delivers exceptionally bright presentations. With 2,300 lumens, 1024x768 XGA resolution and high contrast, this projector delivers clear, crisp images,... even in the business. Connect two computers simultaneously or add a video source for mobile professionals. ViewSonic® PJ750 Projector High Brightness. Extend the life of displaying HD signals as well as MULTIPLE COMPUTER AND VIDEO INPUTS AND OUTPUTS ...
... three-year parts and labor limited warranty, first-year Express Exchange® and one-year lamp warranty. ** Super bright The ViewSonic PJ750 projector delivers exceptionally bright presentations. With 2,300 lumens, 1024x768 XGA resolution and high contrast, this projector delivers clear, crisp images,... even in the business. Connect two computers simultaneously or add a video source for mobile professionals. ViewSonic® PJ750 Projector High Brightness. Extend the life of displaying HD signals as well as MULTIPLE COMPUTER AND VIDEO INPUTS AND OUTPUTS ...
Brochure
Page 2
..., timer Brightness, contrast, V. All accessory lamps purchased separately are +/- 5%. Specifications subject to PJ250, PJ350, PJ500, PJ501, PJ510, PJ550, PJ551, PJ650, PJ750, and PJ1065 projectors purchased after May 1, 2002. See your ViewSonic representative for 90 days. †Excluding major U.S. Ultra-Portable. Out 3.5mm (x1) Control RS232 USB USB upstream (x1), mouse control POWER...
..., timer Brightness, contrast, V. All accessory lamps purchased separately are +/- 5%. Specifications subject to PJ250, PJ350, PJ500, PJ501, PJ510, PJ550, PJ551, PJ650, PJ750, and PJ1065 projectors purchased after May 1, 2002. See your ViewSonic representative for 90 days. †Excluding major U.S. Ultra-Portable. Out 3.5mm (x1) Control RS232 USB USB upstream (x1), mouse control POWER...
Service Manual
Page 2
..., or translated into any language or computer language, in the contents hereof without the prior written permission of ViewSonic Corporation. No part of this document are the property of their respective owners. Sears ii PJ750 Service Manual All rights reserved. Copyright Copyright © 2001 by any means, electronic, mechanical, magnetic, optical, chemical...
..., or translated into any language or computer language, in the contents hereof without the prior written permission of ViewSonic Corporation. No part of this document are the property of their respective owners. Sears ii PJ750 Service Manual All rights reserved. Copyright Copyright © 2001 by any means, electronic, mechanical, magnetic, optical, chemical...
Service Manual
Page 4
...LCD module assembly is powered on. 4. The lamp can be exteemly HOT. High voltage is present in this manual. DO NOT COPY PJ750 This ViewSonic liquid crystal projector is important to provide protection from fire, electric shock, physical injury, harmful radiation and materials. ServiceWarning 1. It is ... to the LCD module assembly, never handle the attached flexible ribbon cable. Be careful to service this product. ViewSonit SERVICE MANUAL PJ750 Caution Be sure to read and follow all cautionary warnings mentioned in the projector for the lamp circuit, so do not touch ...
...LCD module assembly is powered on. 4. The lamp can be exteemly HOT. High voltage is present in this manual. DO NOT COPY PJ750 This ViewSonic liquid crystal projector is important to provide protection from fire, electric shock, physical injury, harmful radiation and materials. ServiceWarning 1. It is ... to the LCD module assembly, never handle the attached flexible ribbon cable. Be careful to service this product. ViewSonit SERVICE MANUAL PJ750 Caution Be sure to read and follow all cautionary warnings mentioned in the projector for the lamp circuit, so do not touch ...
Service Manual
Page 5
... x 1 Mouse cable (PS/2) x 1 POWER cord x 3 Battery x 2 Carrying bag x 1 Handle x 1 CD-ROM (User's guide with VESA DDC1/2B specifications ► Auto-adjustment function 2. DO NOT COPY PJ750 Features ► High brightness, High resolution ► Compact size, light weight for portability ► RS-232C Communication ► Complies with Safety Instructions) x 1 Quick start guide...
... x 1 Mouse cable (PS/2) x 1 POWER cord x 3 Battery x 2 Carrying bag x 1 Handle x 1 CD-ROM (User's guide with VESA DDC1/2B specifications ► Auto-adjustment function 2. DO NOT COPY PJ750 Features ► High brightness, High resolution ► Compact size, light weight for portability ► RS-232C Communication ► Complies with Safety Instructions) x 1 Quick start guide...
Service Manual
Page 6
... OUT USG 1-W CON TERMINAL PANEL Terminal Panel (Refer below) Remote Control Sensor RGB IN 1 Terminal RGB IN 2 Terminal CONTROL Terminal RGB OUT Terminal USB Terminal ViewSonic Corporation 3 CONFIDENTIAL -- DO NOT COPY PJ750 3.
... OUT USG 1-W CON TERMINAL PANEL Terminal Panel (Refer below) Remote Control Sensor RGB IN 1 Terminal RGB IN 2 Terminal CONTROL Terminal RGB OUT Terminal USB Terminal ViewSonic Corporation 3 CONFIDENTIAL -- DO NOT COPY PJ750 3.
Service Manual
Page 7
... control transmitter is activated. puur NICHI I I RIVJ GLASS 3 LASER PRODUCT iMMNILWILBSI.N WGGWINCIF SAMVILELIENT MISER INJATALLURCH VASHLGRM *SIMS LE GdSTENIXIMRSIL ,,,cF•FmAdILM.C. DO NOT COPY PJ750 Please bring it on any physical impact. POSITION Button RESET Button rd. NBEAM • WAVE LENGTH 65onm x . A LISSEN LASER BLASBC, LLWE MR, NOTE: To prevent... the heavy objects on the Remote control transmitter. • Do not wet the Remote control transmitter or place it to click the left click function. ViewSonic Corporation 4 CONFIDENTIAL --
... control transmitter is activated. puur NICHI I I RIVJ GLASS 3 LASER PRODUCT iMMNILWILBSI.N WGGWINCIF SAMVILELIENT MISER INJATALLURCH VASHLGRM *SIMS LE GdSTENIXIMRSIL ,,,cF•FmAdILM.C. DO NOT COPY PJ750 Please bring it on any physical impact. POSITION Button RESET Button rd. NBEAM • WAVE LENGTH 65onm x . A LISSEN LASER BLASBC, LLWE MR, NOTE: To prevent... the heavy objects on the Remote control transmitter. • Do not wet the Remote control transmitter or place it to click the left click function. ViewSonic Corporation 4 CONFIDENTIAL --
Service Manual
Page 8
... white) 2.Set Zoom Wide to 16, then raise the value. GHOST-W: in 4-2 Ghost adjustment. 2. ViewSonic Corporation 5 CONFIDENTIAL -- V.COM - In the same way, use DAC-P - Perform the following operations to adjust the B color flicker. DO NOT COPY PJ750 Use DAC-P - V.COM - and project an image a distance of 40 inches. 3.Normalizing the video adjustment...
... white) 2.Set Zoom Wide to 16, then raise the value. GHOST-W: in 4-2 Ghost adjustment. 2. ViewSonic Corporation 5 CONFIDENTIAL -- V.COM - In the same way, use DAC-P - Perform the following operations to adjust the B color flicker. DO NOT COPY PJ750 Use DAC-P - V.COM - and project an image a distance of 40 inches. 3.Normalizing the video adjustment...
Service Manual
Page 9
...spaced every 6 dots are adjusted as follows. First, adjust the G color. 3. Y = A x 0.064 ± 5 [Ix] 7. DO NOT COPY PJ750 Place the cursor on [A/D] - [SLIDE SHOW] in the Adjust menu [A/D], press the [Pod key three times to adjust so that illuminance (Y) at the center... color coordinates (x, y) at the center of the screen is adjusted as follows. x = (x1 - 0.010) ± 0.003 y = (y1 - 0.025) ± 0.005 ViewSonic Corporation 6 CONFIDENTIAL -- PSIG - Press the MENU key to 0. 9. Y= Ax 0.712 ± 40 [Ix] 5. Adjust Gamma, 29% and G: in the Adjust menu so that ...
...spaced every 6 dots are adjusted as follows. First, adjust the G color. 3. Y = A x 0.064 ± 5 [Ix] 7. DO NOT COPY PJ750 Place the cursor on [A/D] - [SLIDE SHOW] in the Adjust menu [A/D], press the [Pod key three times to adjust so that illuminance (Y) at the center... color coordinates (x, y) at the center of the screen is adjusted as follows. x = (x1 - 0.010) ± 0.003 y = (y1 - 0.025) ± 0.005 ViewSonic Corporation 6 CONFIDENTIAL -- PSIG - Press the MENU key to 0. 9. Y= Ax 0.712 ± 40 [Ix] 5. Adjust Gamma, 29% and G: in the Adjust menu so that ...
Service Manual
Page 10
... be reset, place the cursor on OFF in the Adjust Tone menu and press the [V] key. Although this adjustment can be performed. ViewSonic Corporation 7 CONFIDENTIAL -- DO NOT COPY PJ750 The major adjustment lattice point numbers (a total of the points starting in the diagram on the tone to the major adjustment lattice point...
... be reset, place the cursor on OFF in the Adjust Tone menu and press the [V] key. Although this adjustment can be performed. ViewSonic Corporation 7 CONFIDENTIAL -- DO NOT COPY PJ750 The major adjustment lattice point numbers (a total of the points starting in the diagram on the tone to the major adjustment lattice point...
Service Manual
Page 11
...; 0.050 (adjust Y only) Similarly measure adjustment points [No. 11] to [No. 9] and adjust their color coordinates starting in order from measurement point 1. 4. ViewSonic Corporation 8 6. This completes the adjustments required for reference. [No. 2] to [No. 9] ± 40 or less [No. 10] to [G] monochrome. 8. ...[No. 10] and [No. 11] to a correction data overflow during internal calculations, use the following after adjustment. DO NOT COPY PJ750 Assume that the color coordinates are as follows. Now measure the color coordinates of measurement point [No. 2] and [No. 3] to solid...
...; 0.050 (adjust Y only) Similarly measure adjustment points [No. 11] to [No. 9] and adjust their color coordinates starting in order from measurement point 1. 4. ViewSonic Corporation 8 6. This completes the adjustments required for reference. [No. 2] to [No. 9] ± 40 or less [No. 10] to [G] monochrome. 8. ...[No. 10] and [No. 11] to a correction data overflow during internal calculations, use the following after adjustment. DO NOT COPY PJ750 Assume that the color coordinates are as follows. Now measure the color coordinates of measurement point [No. 2] and [No. 3] to solid...
Service Manual
Page 12
...small number points. 15.This completes [MAX] tone adjustments. 16.Now make similar adjustments for each measurement point so that it easy to solid white. 6. ViewSonic Corporation 9 CONFIDENTIAL -- x = x1 ± 0.005, y = y1 ± 0.010 Similarly, measure adjustment points [No. 3] to 12 above.... of measurement point [No. 2] and adjust [No. 2] [R:] and [B:] so that [G] color adjustment tolerance is required.) 2. DO NOT COPY PJ750 Select [No. 2] [B:] and press the [MENU SELECT] key on the Remote control transmitter to change to minimize color shading. (Use the deviation...
...small number points. 15.This completes [MAX] tone adjustments. 16.Now make similar adjustments for each measurement point so that it easy to solid white. 6. ViewSonic Corporation 9 CONFIDENTIAL -- x = x1 ± 0.005, y = y1 ± 0.010 Similarly, measure adjustment points [No. 3] to 12 above.... of measurement point [No. 2] and adjust [No. 2] [R:] and [B:] so that [G] color adjustment tolerance is required.) 2. DO NOT COPY PJ750 Select [No. 2] [B:] and press the [MENU SELECT] key on the Remote control transmitter to change to minimize color shading. (Use the deviation...
Service Manual
Page 15
... (EXHAUST) What is the state of LAMP Blinks indicator D302? And check TSW short or open? L (OV) Lirn't SW (PWB ass'y SW) ViewSonic Corporation 12 CONFIDENTIAL -- DO NOT COPY PJ750 NG Set the LAMP COVER OK Is the LAMP connection? Short Open TSW Power unit (circuit) Fuse on Power unit (circuit) What...
... (EXHAUST) What is the state of LAMP Blinks indicator D302? And check TSW short or open? L (OV) Lirn't SW (PWB ass'y SW) ViewSonic Corporation 12 CONFIDENTIAL -- DO NOT COPY PJ750 NG Set the LAMP COVER OK Is the LAMP connection? Short Open TSW Power unit (circuit) Fuse on Power unit (circuit) What...
Service Manual
Page 16
... L818 on the PWB ass'y Main YES fixed to "L" during operation? Lamp does not light What is the state of TEMP indicator? DO NOT COPY PJ750 about 10kO PWB ass'y Main ViewSonic Corporation 13 CONFIDENTIAL -- YES What is the state of LAMP indicator during warming-
... L818 on the PWB ass'y Main YES fixed to "L" during operation? Lamp does not light What is the state of TEMP indicator? DO NOT COPY PJ750 about 10kO PWB ass'y Main ViewSonic Corporation 13 CONFIDENTIAL -- YES What is the state of LAMP indicator during warming-
Service Manual
Page 17
the RGB signal is input Check at operating mode Are signal input at pins '2) , ,C) ,0') of NO E101 on the PWB Power unit (circuit) ass'y Main? (2) (TP46): +14V YES (TP47): +17V 0C) (TP48): +6V (TP49): +4.3V PWB ass'y Main LCD Panel ViewSonic Corporation 14 CONFIDENTIAL -- DO NOT COPY PJ750 PWB ass'y Signal YES C),0 : (TP1R) : R signal (4),© : (TP1G) : G signal (7),(0) : (TP1B) : B signal 0,6 : (TP1H) : H sync 0,0 : (TP1V) : V sync Are voltage input at each pin of NO E800 on the PWB ass'y Main?
the RGB signal is input Check at operating mode Are signal input at pins '2) , ,C) ,0') of NO E101 on the PWB Power unit (circuit) ass'y Main? (2) (TP46): +14V YES (TP47): +17V 0C) (TP48): +6V (TP49): +4.3V PWB ass'y Main LCD Panel ViewSonic Corporation 14 CONFIDENTIAL -- DO NOT COPY PJ750 PWB ass'y Signal YES C),0 : (TP1R) : R signal (4),© : (TP1G) : G signal (7),(0) : (TP1B) : B signal 0,6 : (TP1H) : H sync 0,0 : (TP1V) : V sync Are voltage input at each pin of NO E800 on the PWB ass'y Main?
Service Manual
Page 18
YES Oe : S-CIN • : S-YIN : Composite video PWB ass'y Signal PWB ass'y Main LCD module ass'y ViewSonic Corporation 15 CONFIDENTIAL -- Picture is not displayed when the VIDEO Signal is input I Check at operating mode A e voltage input at these pins of NO E800 on the NO PWB ass'y Main? DO NOT COPY PJ750 YES C) (TP46): +14V C) (TP47): +17V ® (TP48): +6V (5) (TP49): +4.3V Power unit (circuit) Are signal input at pins of EV01 on the PWB ass'y Main?
YES Oe : S-CIN • : S-YIN : Composite video PWB ass'y Signal PWB ass'y Main LCD module ass'y ViewSonic Corporation 15 CONFIDENTIAL -- Picture is not displayed when the VIDEO Signal is input I Check at operating mode A e voltage input at these pins of NO E800 on the NO PWB ass'y Main? DO NOT COPY PJ750 YES C) (TP46): +14V C) (TP47): +17V ® (TP48): +6V (5) (TP49): +4.3V Power unit (circuit) Are signal input at pins of EV01 on the PWB ass'y Main?
Service Manual
Page 19
No sound ) Check at operating mode Are signal input at each pin of EV01 on the PWB ass'y Main? 10 12 13 14 NO GND RDP TDP YES : TXD O : RXD PWB ass'y Signal PWB ass'y Main ViewSonic Corporation 16 CONFIDENTIAL -- DO NOT COPY PJ750 YES © : Audio(L) : Audio(R) PWB ass'y Signal PWB ass'y Main Speaker Can not control to RS-232C ) Check at operating mode Pin No 1 RS-232C 2 3 6 SELO 7 RTS 9 A e the signals input at these pins of EV01 on the NO PWB ass'y Main?
No sound ) Check at operating mode Are signal input at each pin of EV01 on the PWB ass'y Main? 10 12 13 14 NO GND RDP TDP YES : TXD O : RXD PWB ass'y Signal PWB ass'y Main ViewSonic Corporation 16 CONFIDENTIAL -- DO NOT COPY PJ750 YES © : Audio(L) : Audio(R) PWB ass'y Signal PWB ass'y Main Speaker Can not control to RS-232C ) Check at operating mode Pin No 1 RS-232C 2 3 6 SELO 7 RTS 9 A e the signals input at these pins of EV01 on the NO PWB ass'y Main?
Service Manual
Page 20
Speaker Wire from Speaker ViewSonic Corporation 17 CONFIDENTIAL -- DO NOT COPY PJ750 FRONT Lift up the rearward of damaging the connector connecting cables and the PWB ass'y Signal. 1) Disconnect 11 cables and remove 6 screws. AssemblyRemoval, Replacement, andMaintenance ...
Speaker Wire from Speaker ViewSonic Corporation 17 CONFIDENTIAL -- DO NOT COPY PJ750 FRONT Lift up the rearward of damaging the connector connecting cables and the PWB ass'y Signal. 1) Disconnect 11 cables and remove 6 screws. AssemblyRemoval, Replacement, andMaintenance ...
Service Manual
Page 21
...;When the air filter is clogged with a vacuum cleaner. • Switch power OFF and remove the power cord from the power outlet. 2. DO NOT COPY PJ750 the CHECK AIR FLOW message appears on the screen and the power supply is switched OFF automatically to you. Therefore, regarding these parts, you can... our distributor. Clean the air filter with dust etc. • Before Replacing the LCD I Lens Prism You should be removed, or if it is damaged. ViewSonic Corporation 18 CONFIDENTIAL --
...;When the air filter is clogged with a vacuum cleaner. • Switch power OFF and remove the power cord from the power outlet. 2. DO NOT COPY PJ750 the CHECK AIR FLOW message appears on the screen and the power supply is switched OFF automatically to you. Therefore, regarding these parts, you can... our distributor. Clean the air filter with dust etc. • Before Replacing the LCD I Lens Prism You should be removed, or if it is damaged. ViewSonic Corporation 18 CONFIDENTIAL --
Service Manual
Page 22
... (Option lamp: D100331) Before replacing the lamp, switch power OFF, remove the power cord from the Remote control transmitter. DO NOT COPY PJ750 Make sure the plus and minus terminals are correctly oriented. 2 3. The lamp may explode if handled at high temperatures. • For disposal... life. The image will become darker, and hues will become weaker, after a lamp has been used for a long period of the lamp. ViewSonic Corporation 19 CONFIDENTIAL -- CAUTION • Use only the specified batteries with the lamp cover removed. Push the knob while lifting up the battery cover...
... (Option lamp: D100331) Before replacing the lamp, switch power OFF, remove the power cord from the Remote control transmitter. DO NOT COPY PJ750 Make sure the plus and minus terminals are correctly oriented. 2 3. The lamp may explode if handled at high temperatures. • For disposal... life. The image will become darker, and hues will become weaker, after a lamp has been used for a long period of the lamp. ViewSonic Corporation 19 CONFIDENTIAL -- CAUTION • Use only the specified batteries with the lamp cover removed. Push the knob while lifting up the battery cover...