Philips V40 109B6 Service Manual
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Philips V40 109B6 Service Manual

Philips V40 109B6 Service Manual

19'' crt colour monitor
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Service
Service
Service
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
Published by BCU Monitors
Printed in Suzhou
SAFETY NOTICE
Copyright reserved
Subject to modification F
V40 109B6
Model: 109B60/00
Sep. 24 2004
3138 106 10426
GB

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Summary of Contents for Philips V40 109B6

  • Page 1 V40 109B6 Service Service Service Model: 109B60/00 SAFETY NOTICE ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

  • Page 2: Important Safety Notice

    Under no circumstances should the original design be modified or altered without written permission from Philips. Philips assumes no liability, express or implied, arising out of any unauthorized modification of design. Servicer assumes all liability. * Broken Line...

  • Page 3: Technical Data

    Visible screen area 360 mm x 270 mm Not connect Black matrix Phosphors Sync Magnetic field : North Sense (GND) Commercial name Philips Bi-directional data(SDA) Scanning Frequency Horizontal 30 - 97 KHz H-sync Vertical 50 - 160 Hz V-sync Maximum resolution 1920 x 1440 @ 60 Hz Recomm.
  • Page 4 Technical Data 109B6 CRT Go to cover page 5. Mains Voltage Range: 195 - 264 or 90-264 V rms 14.1. sRGB luminance (Full white pattern): at 68.67K/85Hz, regardless Input Line Frequency: 47 - 63 Hz of brightness and contrast controls: 23 +/- 2.5 FL 15.Image shift range:Horizontal:>...
  • Page 5 Installation 109B6 CRT Go to cover page Power in - attach power cable here. Front View Video In - this is a cable which is already attached to your monitor. Connect the other end of the cable to your PC. Power button switches your monitor on.

  • Page 6: Troubleshooting

    Trouble Shooting 109B6 CRT Go to cover page Having this problem? Check these items Make sure the Power cable is plugged into the power outlet and back of the monitor. No Picture Power button in the front of your monitor should be in the ON position.

  • Page 7: Osd Tree

    OSD Tree 109B6 CRT Go to cover page...
  • Page 8 Go to cover page The OSD Controls BRIGHTNESS To adjust your screen's brightness, follow the steps below. Brightness is the overall intensity of the light coming from the screen. A 50% brightness is recommended. 1) Press the button on the monitor. The BRIGHTNESS window appears.
  • Page 9 Go to cover page 4) Press the button to move the image to the left or right. 3) Press the button. The ZOOM window appears. 5) When the position is adjusted, press the button to return to MAIN CONTROLS window, or press the to highlight ADJUST SIZE.
  • Page 10 Go to cover page 4) Press the button to move the image up or down. 5) When the position is adjusted, press the button to return to 4) Press the button. The SIDE CURVE window appears. MAIN CONTROLS window, or press the button to highlight PINCUSHION should be highlighted.

  • Page 11: Rotate Image

    OSD Adjustments (Continued) 109B6 CRT Go to cover page 8) To adjust the PARALLELOGRAM, press the button. 9) When the parallelogram is adjusted, press the button to return to the ADJUST SHAPE window. BACK TO MAIN CONTROLS window will be highlighted. 10) Press the button to return to the MAIN CONTROLS window, or press the...

  • Page 12: Adjust Color

    OSD Adjustments (Continued) 109B6 CRT Go to cover page 4) Press the button to highlight 9300K for GENERAL USE. 6500K for GAMES, or USER PRESET. 5) Once you have highlighted the GENERAL USE OR GAMES, press button to confirm your selection and return to the MAIN CONTROLS window.
  • Page 13 OSD Adjustments (Continued) 109B6 CRT Go to cover page 4) Press the button. The ADJUST MOIRE window appears. HORIZONTAL will be highlighted. 5) Press the button to confirm your selection and return to the MAIN CONTROLS window. CLOSE MAIN CONTROLS will be highlighted. Smart Help After returning to MAIN CONTROLS...

  • Page 14: No Signal Input

    OSD Adjustments (Continued) 109B6 CRT Go to cover page Monitor specific troubleshooting Self-test Feature Check(STFC) Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: 1.
  • Page 15 OSD Adjustments (Continued) 109B6 CRT Go to cover page To access BURN IN mode OSD LOCK First of all, monitor displays an image. 1. Disconnect the video cable(interface cable). OSD LOCK is a feature which disables the OSD controls. It can be used 2.

  • Page 16: Mechanical Instructions

    Mechanical Instructions 109B6 CRT Go to cover page 0. General To be able to perform measurements and repairs on the "circuit boards", these unit should placed in the service position first. 1. Remove the rear cover in Fig. 1 and Fig. 2. -Remove 4 screws as shown -Remove back cover as shown -Remove pedestal as shown...

  • Page 17: Service Position

    Mechanical Instructions 109B6 CRT Go to cover page 4. Main panel with Bottom Tray -Remove the screws for disconnect the Bottom tray as Fig. 6. -Open the click and remove the screws on the main board from fig. 6 to fig.7. 5.

  • Page 18: Ddc Instructions

    DDC Instructions 109B6 CRT Go to cover page General DDC Data Re-programming In case the DDC data memory IC or main EEPROM which storage all factory settings were replaced due to a defect, the serial numbers have to be re-programmed" Analog DDC IC, &...
  • Page 19 DDC Instructions (Continued) 109B6 CRT Go to cover page Note 1: If the connection is improper, you will see the following error Step 3: Installation of EDID301.EXE message (as shown in Fig. 7) before entering the main menu. Meanwhile, the (read EDID) function will be disable. At this Method 1: Start on DDC program time, please make sure all cables are connected correctly and fixedly, and the procedure has been performed properly.
  • Page 20 DDC Instructions (Continued) 109B6 CRT Go to cover page 2. Select the DDC2B as the communication channel. As shown in Fig. 11. Fig. 11 3. Click OK button to confirm your selection. 4. Click icon (Read EDID function) to read DDC EDID data from monitor.
  • Page 21 DDC Instructions (Continued) 109B6 CRT Go to cover page Next Next Click , bring up Fig. 20. Click , bring up Fig. 17. Fig. 20 Next Click , bring up Fig. 21. - Click Finish to exit the Step window. Fig.
  • Page 22 DDC Instructions (Continued) 109B6 CRT Go to cover page Step 6: Save DDC data 2. Access Factory Mode Sometimes, you may need to save DDC data as a text file for using 1). Turn off monitor. in other IC chip. To save DDC data, follow the steps below: 2).

  • Page 23: Ddc Data

    White X coordinate : 0.283 Monitor Descriptor #3 White Y coordinate : 0.297 Monitor Name : PHILIPS 109B6 Established Timings Monitor Descriptor #4 Established Timings I : 720 x 400 @70Hz (IBM,VGA) Monitor Range Limits 720 x 400 @88Hz (IBM,XGA2) Min.
  • Page 24 Established Timings I : 720 x 400 @70Hz (IBM,VGA) Monitor Descriptor #3 720 x 400 @88Hz (IBM,XGA2) Monitor Name : PHILIPS 109B6 640 x 480 @60Hz (IBM,VGA) Monitor Descriptor #4 640 x 480 @67Hz (Apple ,Mac Monitor Range Limits 640 x 480 @72Hz (VESA) Min.
  • Page 25 White X coordinate : 0.283 Monitor Descriptor #3 White Y coordinate : 0.297 Monitor Name : PHILIPS 109B6 Established Timings Monitor Descriptor #4 Established Timings I : 720 x 400 @70Hz (IBM,VGA) Monitor Range Limits 720 x 400 @88Hz (IBM,XGA2) Min.

  • Page 26: Lightframe For Windows

    Note Philips LightFrame will only work with monitors that have been built to use this software. Earlier Philips monitors or other manufacturers’monitors will not work with this special software. It is recommended that you install this software only on a Philips monitor designed to use it. These monitors can be identified by the LightFrame logo on the front of the monitor.

  • Page 27: Electrical Instructions

    109B6 CRT Electrical Instructions Go to cover page 1. General point 3.1.2 Apply 80KHz/75Hz full black pattern. 1.1 During alignment and measurement supply a distortion free AC- 3.1.3 Monitor the following auxiliary voltages. mains voltage to the apparatus via an isolating transformer with +197.0V SOURCE ACROSS C2152 and gnd.
  • Page 28 Electrical Instructions 109B6 CRT Go to cover page CRT TYPE LPD CRT CPT CRT SDI CRT adjusted M46QEF903X21(T) M46AJS53X46(SMV) M46QCK761X214(TCO/ DFT-M) Freq(KHZ) mode LIN H Corner LIN H Corner LIN H Corner < 33.24 31.5K/70hz 255(def) 111(def) 96(def 245(def) 100(def) 96(def 212(def) 100(def) 96(def...
  • Page 29 109B6 CRT Electrical Instructions Go to cover page " " " " " " " " " "...
  • Page 30 109B6 CRT Electrical Instructions Go to cover page 6.1.12Store the set result and exit OSD. (the values for pincushion, trapezoid, balance pincushion and parallelogram can be copied to the other pre-set modes to shorten alignment time) 6.2 Other pre-set modes geometry adjustment Use following procedure for all pre-set modes (except 80kHz/75Hz) (Timing Table 1 - 14) 6.2.1 Adjust the Horizontal Position to CRT center position.
  • Page 31 Wiring Diagram 109B6 CRT Go to cover page...
  • Page 32 109B6 CRT Block Diagram Go to cover page FUNCTION BLOCK OF 109B6 · VIDEO VIDEO LIGHT & OUTPUT AMPLIFIER RESTOR. FRAME DEFLECTION UNIT TDA4887 LM2435 BC548C TDA4823 ROTATION LM358N OSD IC NT68275 Self-te S-CAP H-OUTPUT/ LOT VIDEO SWITCH BU2527AF/DMV1500M /TIP122 DC/DC 2SJ 512 HORIZONTZL &...
  • Page 33 Main Schematic Diagram 109B6 CRT Go to cover page 145V6 10V3 145V6 3V 2V7 0.9V 0.9V 0.8V 120V 145V6 0.2V 145V6 145V6 120V 145V6 65V7 0.4V 0.8V 0.9V 0.5V 0.4V 0.4V 0.4V 0.2V 0.6V -1V4 0.6V 0.1V...
  • Page 34 109B6 CRT Power Schematic Diagram Go to cover page 10V5...
  • Page 35 Main Board C.B.A.-1 109B6 CRT Go to cover page...
  • Page 36 109B6 CRT Main Board C.B.A.-2 Go to cover page...
  • Page 37 Video Schematic Diagram 109B6 CRT Go to cover page 0.9V 38V6 0.9V 33V7 36V2 0.4V 0.5V 0.9V...
  • Page 38 Video Board C.B.A-1 109B6 CRT Go to cover page...
  • Page 39 Video Board C.B.A-2 109B6 CRT Go to cover page...
  • Page 40 109B6 CRT Control Schematic Diagram & C.B.A Go to cover page...
  • Page 41 WAVEFORM 109B6 CRT Go to cover page A2 7302-3 A1 7302-2 A3 7302-4 A4 7302-6 A5 7302-8 A6 7302-9 A7 7302-10 A11 7302-21 A12 7302-23 A8 7302-11 A9 7302-17 A10 7302-19 A13 7301-1 A14 7301-2 A15 7301-3 A16 7301-4 A17 7301-6 A18 7301-8 A19 7301-10 A20 7301-11...
  • Page 42 109B6 CRT WAVEFORM (Continued) Go to cover page B44 7801-29 B45 7801-33 C1 1111-1 B43 7801-9 C2 1111-3 C3 5108-2 C4 5108-3 B46 7801-34 B47 7801-37 B48 7801-38 C6 5113-2 C7 5113-6 C8 5113-10 C5 5113-1 B49 7801-40 B50 7801-41 B51 7401-3 C9 5113-11 C11 5113-14...
  • Page 43 WAVEFORM (Continued) 109B6 CRT Go to cover page B1 7503-B B6 7501-3 B2 7503-C B3 7503-E B4 7501-1 B5 7501-2 B7 7501-4 B14 7501-14 B8 7501-5 B9 7501-6 B10 7501-8 B11 7501-9 B12 7501-12 B13 7501-13 B20 7501-21 B21 7501-22 B16 7501-16 B17 7501-17 B18 7501-18...

  • Page 44: Exploded View

    Exploded View 109B6 CRT Go to cover page...

  • Page 45: Spare Parts List

    Spare Parts List 109B6 CRT Go to cover page Model : 109B60/00 863900015742(LGPD) 3113 213811273477 RST CRB CFR-25 A 0R47 PM5 A 2154 203803527205 ELCAP KM 16V S 470U PM20 A Mechanical Parts 3115 213810113331 RST CRB CFR-12 A 330R PM5 A 2155 203803513205 ELCAP RGA 16V S 1000U PM20 B 0001...
  • Page 46 Spare Parts List 109B6 CRT Go to cover page 933256030673 DIO SIG 1N4148 A (VISH) A 3607 212020200001 RST FUSE RFS1/2 A 1R PM5 A 6143 3856 212210102181 RST CRB CF1/6 A 100R PM5 A 933497950673 DIO REC RGP10J A (VISH) A 3608 212210102181 RST CRB CF1/6 A 100R PM5 A...
  • Page 47 Spare Parts List 109B6 CRT Go to cover page 3759 213810113689 RST CRB CFR-12 A 68R PM5 A 2753 242254945382 SURGE PROTECT SGP-201M-DRF A 3761 212210102175 RST CRB CF1/6 A 10R PM5 A 2760 225256108406 CER1 DC SL 1KV S 47P PM10 A 3762 232273061103 RST SM 0805 RC11 10K PM5 R...

  • Page 48: Recommended Parts List

    Recommended Parts List 109B6 CRT Go to cover page 6147 933117760133 DIO REG BZX79-C7V5 A (PHSE) A 0001 313812755171 FRONT CABINET ASSY 6148 933913910115 DIO SIG SM BAS32L (PHSE) R 0004 313812753821 CHIN ASSY 6600 932216961687 DIO REC DMV1500M (ST00) L 0042 313810460801 BACK COVER 7102...

  • Page 49: General Product Specification

    109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page " V40 109B6 19 97kHz model General Specification (Sheet 590) FEATURES / BENEFITS - Extremely high MTBF (over 75K Hours, exclude. CRT). - User friendly OSD display for mode identification and adjustment - Professional look, with non-flammable cabinet (94V-0).
  • Page 50 3.10 Low emission requirements (TCO/MPRII) 3.11 Display data channel: DDC2B (VESA STANDARD) Display Display resolution Image size Image centering deviation Picture shift control range Geometric distortions Picture tilt V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 51 7.3.1 Ionization radiation 7.3.2 Safety and EMI / requirements 7.3.3 X-Ray radiation requirement / regulation Reliability Mean time between failures Quality assurance requirements Acceptance test 10.0 Serviceability V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 52 (between 0 and 0.6 V to be considered as low level, between 2.3 and 5.0 V as high level) B. Impedance Video - Terminated with 75 ohms Sync - Terminated with 4.7K ohms pull-down resistors. V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS...
  • Page 53 Self-test Red video ground Green video ground Blue video ground Not connect Ground Ground Bi-directional data (SDA) H SYNC V SYNC DDC Data CLOCK (SCL) V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 54 1792x1344 60(83.640k) 204.750 VESA/P 1856x1392 60(86.330k) 218.250 VESA/P 1920x1440 60(90.000k) 234.000 VESA/P " " @ Denote it is a preset mode ,others are preload modes. V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 55 3 .2 Timing requirements The pre-set timing table are shown as below Timing Table: 1- 13 TIMING FOR V40 109B6 97KHz model AUTOSCAN COLOR MONITOR REFERENCE PATTERN GENERATOR: CHROMA 2225 TABLE 1: 31.469 KHz/70.087Hz, 720 X 400, pixel=28.325 MHz Horizontal...
  • Page 56 Display size = 11.183 ms Rear porch 2.201 us Rear porch 0.524 ms Sync width 1.016 us Sync width 0.044 ms Sync polarity Sync polarity = V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 57 = 1.608 ms Rear porch Rear porch = 0.526 ms = 1.016 ms Sync width Sync width = 0.034 ms Sync polarity Sync polarity = V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 58 47-63Hz Power consumption : 70W (Typical) Power cord length : 1.8M Power cord type : 3 leads detachable power cord with protective earth plug . V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 59 Contrast Light output Light output (full white) (10cm x10cm block) Minimum Minimum < 0.2 FL Centre Maximum 30 +/- 2.5 FL 41 +/- 3 FL V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 60 TCO£25 nT £ ± 500 V E.S.P Band I : 5 to 2K Hz. Band II : 2K to 400K Hz. Test procedure according to Low emission test method. V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11...
  • Page 61 Picture shift control range H-shift range : 10 mm min. (+/- 3mm,from center to each side) V-shift range : 8 mm min. (+/- 2mm,from center to each side) V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11...
  • Page 62 (See Fig- 6) Mis-Convergence SPEC. Zone A / C is 0.3 / 0.4 When ? 45kHz. CRT Pitch 0.25mm Zone A 0.25 Zone C 0.35 Center 0.15 V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 63 Conditions: As stated in item 4.0, the purity must be checked under specified destinations of earth magnetic environments and the monitor to be well degaussed. After warming-up time of 30 min., no colored stains may occur in above four patterns. V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS...
  • Page 64 : 10000 ~ 39000 ft 7.1.2 Transportation packages A) Carton box A-1 Size (with pedestal) 526(W)´476(H)´560(D) : Normal packing for China, India 495(W)´466(H)´520(D) : Small packing for other regions V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11...
  • Page 65 W/ SLIP Q’ ty SHEET SHEET SHEET SHEET Layers Sets Layer(PA) Sets Layer(PB) Sets Block(PA) Sets Block(PB) Blocks / Container(PA) Blocks / Container(PB) Total Sets V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 66 Half sine shock : 100G, <3m sec. 6 shocks : 23 C test Temp. Humidity : 60 % Air pressure :100kpa Standard : Mechanical Guideline V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 67 :DHHS 21 CFR, CHAPTER 1,SUBCHAPTER J -GERMANY :RONTGEN VERORDNUNG ROV 1987.01.08 X-ray explosure at 5cm distance from any point of the external surface must not exceed 0.1 mR/H. V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11...
  • Page 68 Target Field repair rate : <2% 10.0 Serviceability The service ability of this monitor should fulfill the requirements which are prescribed in UAW-0346 and must be checked with the check list UAT-0361. V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS...
  • Page 69 109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page 351 mm 355 mm 359 mm Fig-1 IMAGE DIMENSION V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 70 109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page 355 mm |A-B| AND |C-D| < 6 mm FIG-2 IMAGE CENTERING V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 71 109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page 355 mm |A-B| < 2 mm FIG-3 IMAGE ROTATION V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 72 109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page 355 mm A, B < 2.0 mm C, D < 2.0 mm FIG-4 IMAGE GEOMETRY V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 73 109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page 100 mm Pattern B Pattern A 355 mm FIG-5 CONTRAST AND BRIGHTNESS MEASUREMENT PATTERNS V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 74 109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page ZONE C ZONE A 355 mm FIG-6 MISCONVERGENCE MEASUREMENT AREA V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...
  • Page 75 109B6 CRT GENERAL PRODUCT SPECIFICATION Go to cover page Fig-7 FOCUS CHECK CHARACTER FIG 6 SYMBOL FORMAT FOR FOCOS CHECK V40 109B6 97KHZ TYPE :109B60/00 8639 000 15742 BRAND : PHILIPS 2004-08-11 Michael Wang 2004-08-11...

  • Page 76: Repair Flow Chart

    Repair Flow Chart 109B6 CRT Go to cover page A. Power Supply Failure 1.symptom: Check 7102 pin8 Check 7102 no startup sound Check 7102 140v<pin8<360v pin6 output? LED light off pin1+11v Check Replace 7102 Check 1101/6101/ 6113/3125/ 7101 3105 Replace 7102 Turn power off 2.
  • Page 77 Repair Flow Chart 109B6 CRT Go to cover page Rough check for R, G, B B. Video 1. Video input=0.7V Repair Flow Check HUNLOCK 2. 7331 Video output=2.5v 7501 Pin17 3. 7701 Video output>35V Check 1. Symptom: R, G, B output (with white pattern) Check Check hearter...
  • Page 78 Repair Flow Chart (Continued) 109B6 CRT Go to cover page C. Horizontal deflection output repair flow: 1. Symptom: Check HDRB Check HDRB Check B+DRB Check HDRB without 7501 Pin8 7515 base 7501 Pin6 7617 base H-deflection Refer 7501 check list or replace 7503 2.
  • Page 79 Repair Flow Chart 109B6 CRT Go to cover page Basic check D. Vertical Deflection Failure +12V/-12V Symptom: Check one horizontal line 7501 PIN 12.13 V-size is abnormal too large/small Replace 7501 Check 7401 Pin1.7 ramp exist? Check 3554.3552...
  • Page 80 Repair Flow Chart 109B6 CRT Go to cover page E.CPU Check CPU pin 6/pin 5=5v 1. Basic Check Check List pin 8/pin9=12MHZ Check pin 4 4.H-Linearity pwm from OV to 5V Check pin2 2.H-Centering pwm from OV to 5V 19. Blank Check pin19 normal: low chang timing: Hi...
  • Page 81 Repair Flow Chart 109B6 CRT Go to cover page Check active=hi 22. Degauss no active=low Check 5.reset check 37.Brightness pwm from 0V to 5V check 38. Rotation pwm from 0V to 5V check keys, Enter 23. Keypad Left(bri.),Right(con.),Exit keys check pin 24 1.no H/V sync &...
  • Page 82 Repair Flow Chart 109B6 CRT Go to cover page Basic check F. TDA4841 Vcc=pin9=pin10=12V Vcc > 9V gnd =pin7=pin25=0v Check List during startup 1. HFLB pin16 if no exist (from H.defl) CLBL=hi floating ----->7671 floating ----->7672 2. Xray(Ground) (Active LOT pin 12, if active floating ----->5681 pin2 13 to 7411 pin1...
  • Page 83 Repair Flow Chart 109B6 CRT Go to cover page Hunlock pin is floating while pll1(pin26) is 17. Hunlock unlock in searching mode initial sequence of IIC IC 18. IIC scl = hi 7501,7301,7304 19. IIC sda = hi 22,23,24 pin22 determin the AGC 50Hz<...

  • Page 84: Different Parts List

    Different Parts List 109B6 CRT Go to cover page Go to cover page Diversity of 109B65/75comparing with 109B60/00 Diversity of 109B60/05 comparing with 109B60/00 1151 930198410323 CRT M46QEF903X21(T)S (LGPD) B 1053 313818878182 MAINSCORD ASTA 10A 1M83 GY 1152 313817880971 MB-1 ASSY (LPD-109B6)B 1255 313817880951 EEPROM ASSY (CPT-109B6) 1054...
  • Page 85 4. When the HV circuitry is operating properly there is no possibility of an x- tube must be the same type as the original, including suffix letter, or a Philips radiation problem. High voltage should always be kept at the approved type.

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