ViewSonic VS11262 Service Manual
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ViewSonic VS11262 Service Manual

ViewSonic VS11262 Service Manual

Viewsonic p76f+-2 17” digital controlled color monitor
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Service Manual

ViewSonic P76f+-2
Model No. VS11262
17" Digital Controlled Color Monitor
(P76f+-2_SM_884 Rev. 1a – Apr. 2006)
"
ViewSonic
381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
ViewSonic Corporation
Confidential-Do Not Copy
P76f+-2
1

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  • Page 1: Service Manual

    Service Manual ViewSonic P76f+-2 Model No. VS11262 17” Digital Controlled Color Monitor (P76f+-2_SM_884 Rev. 1a – Apr. 2006) “ ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583 ViewSonic Corporation Confidential-Do Not Copy P76f+-2...

  • Page 2: Revision History

    Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.

  • Page 3: Table Of Contents

    6. Troubleshooting Flow Chart ··································································································· 7. Block Diagram························································································································ 8. Schematic Diagrams ·············································································································· 9. PCB Layout Diagrams············································································································ 10. Exploded Diagram and Exploded Parts List ········································································· 11. PPL ······································································································································ 12. Recommended Spare Parts List··························································································· VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 4: Precautions And Safety Notices

    Connect a 1500 ohm, 10 watt resistor, paralleled by a 0.15uF capacitor between each exposed metallic part and a good earth ground (as shown in Fig.1). Use an AC voltmeter with 1000 ohm/volt or more sensitivity and measure the AC voltage across the VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 5 It is essential that these critical parts should be replaced with manufacture’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify the original design or this will void the original parts and labor guarantee. VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 6: Specification

    30KHz ~ 97KHz Vertical: 50 Hz ~ 160 Hz 8. Factory Preset Timings: 12 User Timings: 10 9. Misconvergence A Zone: 0.25 mm Max. B Zone: 0.35 mm Max. 10. Video Bandwidth: 260 MHz VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 7 ON Mode <75W typical (Green LED) ACTIVE OFF <2W(Orange LED) Power off <1W 17. Regulatiory and Safety North America Regulatory filing should be made under the “VS11262” Regulatory Filing determined by Compliance Engineering. China CCC, CB International TCO’03 Power Management Power Management EPA reversion 4.0 / 2006 tier-II...

  • Page 8: Operating Instructions

    This monitor has power saving function following the VESA DPMS. Be sure to connect the signal cable to the PC. If your color display requires service, it must be returned with the power cord. VIEWSONIC CORPORATION Confidential - Do Not Copy...

  • Page 9: Front Panel Function Control Description

    Use the buttons on the front control panel to display and adjust the OSD controls .The OSD controls are explained at the top of the next page and are defined in “Main Menu Controls” on page 8. VIEWSONIC CORPORATION Confidential - Do Not Copy...

  • Page 10: Osd Lock Settings

    3 below). Press button [2] to toggle to the next control in the pair. To adjust the setting, such as CONTRAST in the sample below, press the arrow buttons. To save the adjustment and Exit the menu press button [1] twice. VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 11 Trapezoid adjusts the top and bottom of the screen image until they have equal length. Parallel slants the vertical edges of the screen image until they are parallel. Tilt rotates the entire screen image. VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 12 Exception: This control does not affect changes made with the User Color control. OSD Position allows you to move the on-screen display menus and control screens. ViewMeter displays the frequencies (horizontal and vertical) coming from the graphics card of the computer. VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 13: Circuit Description

    Via deflection reset after start up(only micro controller reset) The reset pin(pin23) is connected to a Schmitt trigger for nose reduction. A reset is accomplished by holding the Reset pin HIGH. C145 RST Pin23 C102 R153 0.1UF 2.7K VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 14 60 kHz).Independent on H-syncs which are possibly present. The HPLL will slew to that freerunning frequency. To achieve an always defined starting point for the startup procedure, this procedure cannot be interrupted. VIEWSONIC CORPORATION Confidential - Do Not Copy...
  • Page 15 D922 Rectifier DIODE BYV27-200 D922 Rectifier DIODE BYV27-200 D930 Rectifier DIODE BYV27-200 D916 Rectifier DIODE ER204 D408 DAMPER DIODE DMV1500M-AOC D408 DAMPER DIODE DMV1500MFD C907 Capacitor 150UF+-20% 450V C907 Capacitor 150UF 450V VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 16: Adjusting Procedure

    Key until the OSD window changed to the Factory preset window. C. The Factory preset window contains the following functional controls. Select one of the controls. Then press the Up/Down Key to adjust its value for the optimum picture. VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 17 ROTATION OSD EXIT H-DRIVER COMPENSATION MAX V-SIZE GAIN RANGE H-SIZE GAIN H-MOIRE REDUCE SUB H-SIZE V-MOIRE REDUCE TOP CORNER H-Linearity Modify BOTTOM CORNER V-FOCUS ADJUST V-HV Variation rate adjust BURN IN TIME VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 18 C. Then adjust focus VR1 to a fine vertical line. D. Adjust focus VR2 to a fine horizontal line. E. Repeat step C & D. then fix the Focus VR, G2 VR. VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 19: Adjustment

    F. Vertical green and magenta lines are converged by varying the angle between the two tabs of the 6-pole magnets. G. Horizontal green and magenta lines are converged by varying the two tabs together, keeping the angle between them constant. VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 20: Troubleshooting Flow Chart

    LESS THAN 300V CHECK FBT BRIGHTNESS SET TO MAX. THEN CHECK CRT G1 VOLTAGE CHECK BRIGHTNESS CIRCUIT Q705 RELATIVE CIRCUIT. CHECK VOLTAGE OF THE CRT CATHODE ABOUT 56V TO 65V REFER ITEM 6-2 "ABNORMAL VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 21 RELATIVE CIRCUIT R.G.B. APPROACH STANDARD 6-1-3. Abnormal DDC (Plug & Play) CHECK IC101 PIN 5 VOLTAGE ABOUT 5V CHECK IC902 GOOD OR FAIL CHECK SIGNAL CABLE OR H802 PIN 2, 4 DATA OUTPUT VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 22: Abnormal Display

    CHECK THE IC802 RELATIVE CIRCUIT CHECK THE VOLTAGE OF FBT SCREEN ABOUT 400V TO 700V LESS THAN 400V CHECK FBT RELATIVE CIRCUIT EXCEED 700V CHECK FBT & CRT RELATIVE CIRCUIT OR REFER ITEM 6-1 VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 23 CHECK THE COLLECTOR VOLTAGE OF Q402 ABOUT 14Vpp CHECK Q402, T401 RELATIVE CIRCUIT CHECK THE COLLECTOR VOLTAGE OF Q403 ABOUT 1200Vpp AT FH:31KHz CHECK T401, T402, Q402, Q403, D408, C418, C419, H-DY, B+ VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 24: Abnormal Horizontal Deflection

    CHECK FBT B+ VOLTAGE ABOUT 62V AT FH=31KHz CHECK THE RELATIVE CIRCUIT OF SMPS. CHECK THE HV OF CRT ABOUT 25KV 6-5-2.Abnormal Horizontal Linearity CHECK L401, Q426, Q420, Q427 AND IC101 PIN9,10,11 VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 25: Abnormal Vertical Scanning

    CHECK IC101 AND IC601 RELATIVE CKT 6-7 Side-Pin Cushion Distortion READJUST CHECK IC101, Q406 RELATIVE CKT. 6-8 Poor Focus READJUST FOCUS CONTROL CHECK FOCUS CONTROL UNIT, FOCUS LEAD WIRE, CRT SOCKET & CRT VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 26: Power Supply Trouble Shooting Chart

    CHECK BRIDGE RECTIFIED CHECK D925 CHECK START C.K.T R939,R940, D912,ZD903 CHECK Q911 Q911 FAILURE CHECK T901 O/P IC101 PIN30(ABOUT5V) CHECK 56V, 14.5V 6.5V CIRCUIT OUTPUT CHECK IC901 IC901 FAILURE CHECK SENSE RESISTENCE VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 27: Block Diagram

    LM1246DKA LM2476 O/P CABLE PRE.AMP. 24.5KV FUNCTION FOCUS CONTROL IC101 SAA4849PS/V1016 Q402,T401 Q403,T402(FBT) CRYSTAL 48M HOR.O/P HOR. DRIVER X-RA Y PROTECTION Q406 IC601 PINCUSHION & STV9383 H-SIZE CONTROL VERT.O/P Q705 BLANKING CIRCUIT VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 28 CLAMP VsOUT XTAL2 standby XTAL1 MODE VSSE VDDA VDDD Vssa VSSD BDRV Bsens HBGND AGND HDRV Vref Iref XRAY EWdrv VOUT2 Vfocus VUOT1 Deguss IC101 SAA4849 ABLadj DouColor KEY2 Uvolt KEY1 SinColor VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 29 SAA4849 VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 30 IC102 24LC08-BN6 ISCL ISDA IC601 E-STV9383 -VCC -VCC -VCC -VCC -VCC -VCC -VCCP Cfly+ +VCCP CFfly- +VCC BOOT EAOUT Vreg Feedcap Freq SGND VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 31 IC801 LM1246DKA VBLK HBLK CAP_A CLAMP VDD_1 GND_A R_OUT R_IN G_OUT G_IN B_OUT B_IN VDD_2 GND-PLL GND_2 5V_PLL CAP_D VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 32 IC802 LM2476 OUTD1 IND1 OUTD2 IND2 IND3 OUTD3 INC1 OUTC1 INC2 OUTC2 INC3 OUTC3 OCP/FB IC901 56C379-504 STR-G5643D VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 33: Schematic Diagrams

    R146 R147 1000 LED4 R125 10000P LED4 C702 KEY1 SinColor Orange Green 1/4W R182 R183 4.802V 0.276V R115 0.01 100V R128 R162 J022 56C1125-575-X R155 SAA4848 ZD101 R127 2.4K 1/4W R163 BZX55C51 VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 34 IC601 PIN5 Q403 B Q403 C T901 PIN2 IC801 PIN21 IC802 PIN3 Q911 G IC901 PIN1 85Hz 40KHZ~58KHZ 500V 5.41V 5.56V 11.9V 12.1V 5.12V 13.7V 0.6KV 11.7V 52.4V 1.14KV >58KHZ 85HZ 85Hz LED1为单色发光二极管,POWERSAVING时为绿闪;LED2为双色发光二极管; VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 35 73C253-69-T R412 15.8V C422 MODEL: P/N: 47K 1/4W 150UH Safety R403 C714 2.2uF/100V 57C600-21 B795D-1VSCP 68K 1/4W 4.7U 16V Engineer 3.4V Q406 R433 EWOUT Date: APPROVED <Page Modify Date> 470 1/4W IRF630M VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 36 560P/500V 33 1/2W 1UF/100V D802 R846 C835 93C64-501-52T R814 C851 71C55-9-T D809 100P/2KV 100P/1KV BAV21 SBYV26C D801 C852 R804 JUMPER 100 1/2W 0.01UF/2KV L805 600V JUMPER FOCUS C825 C834 100PF/1KV 0.1UF/250V 33C3278-13D VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 37: Pcb Layout Diagrams

    9. PCB Layout Diagrams 9-1 Main PCB Layout VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 38 9-2 CRT Board Layout VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 39: Exploded Diagram And Exploded Parts List

    10. Exploded Diagram and Exploded Parts List VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 40 1 PCS 033C4444 1 POWER LENS 1 PCS 715C1576 K 1 1 PCS 034C 824 F0 B SWIVAL 1 PCS 034C 741 F0 B BASE 1 PCS 006C 31500 RUBBER FOOT 4 PCS VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 41 11.PPL VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...

  • Page 42: Recommended Spare Parts List

    12. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST(P76f+-2G) ViewSonic Model Number: VS11262 Rev: 1a VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 43 P76f+-2G BOM VIEWSONIC CORPORATION Confidential - Do Not Copy P76f+-2G...
  • Page 44 Add.: Tel: Fax: E-mail: After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com) VIEWSONIC CORPORATION Confidential - Do Not Copy...

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