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Acer 7299sl Service Manual

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Copyright
Copyright  1999 by Acer Peripherals, Inc. All rights reserved. No part of this publication may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any
form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior
written permission of Acer Peripherals, Inc.
Disclaimer
Acer Peripherals, Inc. makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranties, mechantability or fitness for any particular purpose.
Further, Acer Peripherals, Inc. reserves the right to reserve this publication and to make changes from time to time
in the contents hereof without obligation of Acer Peripherals, Inc. to notify any person of such revision or changes.
7299sl Monitor
Service Guide
January 1998
PART NO.: 49.71M01.021
DOC NO.: 9902A-7299SLSG

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  Summary of Contents for Acer 7299sl

  • Page 1 Further, Acer Peripherals, Inc. reserves the right to reserve this publication and to make changes from time to time in the contents hereof without obligation of Acer Peripherals, Inc. to notify any person of such revision or changes.
  • Page 2 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 3: Table Of Contents

    Table of Contents Table of Contents ..............................iii 1.SYSTEM OVERVIEW ..........................1-1 1.1 Introduction ...........................1-1 1.2 Operational Specification ......................1-1 1.2.1 Environment .........................1-1 1.2.1.1 Temperature....................1-1 1.2.1.2 Humidity......................1-1 1.2.1.3 Altitude......................1-1 1.2.2 Transportation ......................1-2 1.2.2.1 Vibration Test....................1-2 1.2.2.2 Drop Test ....................1-2 1.2.3 Packing Configuration....................1-3 1.2.3.1 Container Specification ................1-3 1.2.3.2 Carton Specification ..................1-3 1.2.3.3 Container Stowing &...
  • Page 4 2.1.20 Sawtooth waveform generator..................2-12 2.1.21 High voltage feedback compensation circuit..............2-13 2.1.22 High voltage output circuit ..................2-13 2.1.23 X-ray protective circuit....................2-13 2.1.24 ABL circuit.........................2-13 2.1.25 Dynamic Focus Circuit....................2-13 2.1.26 Vertical focus circuit ....................2-14 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 5 2.1.27 Horizontal focus circuit ....................2-14 2.2 Microcontroller Cricuit Operation....................2-14 2.2.1Introduction ........................2-14 2.2.2 Block diagram ......................2-14 2.2.3 MCU and the peripheral circuit operation theory ...............2-15 2.2.3.1 MCU function: ....................2-15 2.2.3.2 How to detect mode timing: ................2-15 2.2.3.3 What are the valid key functions for user:...........2-16 2.2.3.4 How to memorize the timing and adjusted data: .........2-16 2.2.3.5 How to display the OSD menu:..............2-16 2.2.3.6 How to execute the auto alignment function: ..........2-16...
  • Page 6 Appendix A ............................A-1 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 7: System Overview

    A power management function has been designed to save power consumption and power management is compliant with VESA & TCO. The monitor is available with two industrial designs: one for ACER and the other for OEM.
  • Page 8: Transportation

    -A flat drop with impact on the left -A flat drop with impact on the bottom -A flat drop with impact on the top After test, there is no electrical and mechanical damage permitted. API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 9: Packing Configuration

    1.2.3 Packing Configuration 1.2.3.1 Container Specification 1.2.3.1.1 Shipping Container Container Type 20'*8'*8'6" Steel 40'*8'*8'6" Steel 40'*8'*9'6" High Cube Steel Gross 24,000 30,480 30,480 Weight(Kgw) Tare 2,370 4,000 4,200 Payload 21,630 26,480 26,280 Interior Measurement Length 5,898 12,031 12,031 (mm) Width 2,352 2,352 2,352...
  • Page 10: Container Stowing & Carrying Specification

    (Every Pallet) (Every Container) Pallet A: 12 Pallet A: 8 Pallet B: X Pallet B: X with pallet Pallet A: 12 Pallet A: 20 Pallet B: X Pallet B: X Without pallet API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 11 1.2.3.4.2 Shipping Container Stowing Method 1.2.3.4.3 Air Transport Container Container Type Quantity of products Quantity of Products Quantity of pallet (sets) (sets) (sets) (Every container) (Every Pallet) (Every Container) Container Pallet A: 20 Pallet A: 6 Pallet B: X Pallet B: X 3048 * 2286 * 2438 System Overview API Confidential...
  • Page 12: Environmental Protection Design

    -DHHS.rules 21 sub-chapter J as of date of manufacture 1.2.6.2 220V Version -TUV compliance.EN60950 information technology equipment. -PTB German X-ray emission standards. -ZH1/618.German ergonomic standard. -ISO9241-3.Ergonomic Requirements of Visual Display. -Demko...EN60950. -Nemko...EN60950. -Semko...EN60950. -Fimko... EN60950. -CE marking compliance..73/23/EEC (CN60950) API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 13: Emi Requirements

    1.2.7 EMI Requirements This display unit complies with the following RFI rules and regulations. 1.2.7.1 110V Version -FCC compliance.FCC Rule, Part 15, Subpart B, Class B. -VCCI 1.2.7.2 220V Voltage -CE Mark Compliance. 89/336/EEC.EN50082-1, IEC1000-4-2, IEC1000-4-3, IEC1000-4-4, IEC1000-4-5, IEC1000-4-6 ,EN50081-2, EN55022, CLASS B. IEC1000-3-2, IEC1000-3-3.
  • Page 14: Video Signal

    13.333 11.756 13.328 0.064 0.064 0.064 0.056 0.05 0.86 0.76 0.448 0.503 0.466 13.157 15.762 12.8 11.179 12.795 0.191 0.095 0.021 0.018 0.017 Display 640*400 640*480 800*600 800*600 1024*768 Resolution Polarity H/V API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 15: Input Signal Quality

    UVGA8 VESA 68.677 kHz 79.98 kHz 91.146 kHz 81.019kHz 14.561 12.504 10.971 12.343 1.016 1.067 1.016 1.097 2.201 1.837 1.422 1.737 10.836 9.481 8.127 9.143 0.058 0.119 0.406 0.366 84.996Hz 75Hz 85.024Hz 64.815Hz 11.765 13.329 11.761 15.429 0.044 0.038 0.033 0.037 0.524 0.475...
  • Page 16: Ac Power Inlet

    (2) At 3" block pattern (Brightness at cut-off, contrast at max., ABL is non- working) : 40 Ft-L (3) At full-white pattern (Brightness at cut-off, contrast at max., ABL is working): 28Ft-L 1.4.1.4 Contrast Adjustment Range: over 15db 1.4.1.5 Brightness Adjustment Range 1-10 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 17: Linearity

    At contrast control set at maximum level, adjusting brightness control from minimum setting to maximum setting, the light output of 3” block pattern should be increased more than 15 dB. If both brightness and contrast control are minimum, the 3” block should be extinguished. 1.4.1.6 Linearity ( set to 20 Ft-L at full white pattern first) 10x8 crosshatch pattern: (1) Vertical Non-linearity 5 % max, as Fig.1.
  • Page 18: Ddc1/2B Table

    1.4.1.11 DDC1/2B Table Address Data Description ID Manufacturer Name = API ID Product Code = 7299sl (21,97) ID Serial Number Week of Manufacture Year of Manufacture EDID version Revision Video Input Define (see Note 1) Max. H. Image Size (0-FF cm) Max.
  • Page 19 ASCII String "Monitor" Detailed Timing Description # 2 This Detailed Timing Description : ASCII String "Monitor" Detailed Timing Description # 3 This Detailed Timing Description : ASCII String "Monitor" Detailed Timing Description #4 This Detailed Timing Description : ASCII String "Monitor" System Overview API Confidential 1-13...
  • Page 20 Sync Inputs (See Bit Operation below) Separate Sync Composite Sync (on H Sync line) Sync on Green Video Serration of the V.Sync Pulse is required when composite sync or sync-on- green video is used 1-14 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 21 Note 2 Bit 7 Stand-by Bit 6 Suspend Bit 5 Active off Bit 4-3 Display Type 0,0 - Monochrome/gray scale display 0,1 - RGB color display 1,0 - Non-RGB multicolor display (example:RGY) 1,1 - Undefined. Bit 2-0 Reserved. Set at 00h until defined. Note 3 CRT Vender Red (x/y)
  • Page 22: Usb

    A USB device has several possible states. Some of these states are visible to the USB and the host and others are internal to the USB device. The following diagram describes these states. 1-16 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 23: Color Quality

    1.4.2 Color Quality 1.4.2.1 Misconvergence Use "crosshatch" white pattern, then set the brightness control at weight number is 50 & contrast control max. to examine the convergence. The misconvergence must strictly meet the requirements stated as follows: Center <=0.15mm 270mm A: <= 0.30mm <=...
  • Page 24: Color Uniformity

    Press Enter key to enter sub-menus, and press Left or Right keys to scroll light pane to desired items. There are two items : Contrast Brightness Press Enter to select the items. Then press Left or Right keys to do adjustment. 1-18 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 25 Geometry Press Enter key to enter sub-menus, and press Left or Right keys to scroll light panel to desired items. There are 10 items : Hor. (horizontal) Position Hor. Size Ver. (vertical) Position Ver. Size Tilt (Rotation) Pincushion Unbalance Trapezoid Parallelogram Top Corner Bottom Corner...
  • Page 26: Physical Dimension & Appearance

    From outside of unit with standard tools and documentation provided to user. 1.6.1.2 Periodic Maintenance No periodic maintenance is required. 1.6.1.3 Repair & Calibration followings. Require equipment and spare modules or components as specified as (1) MAIN ASSY P/N 55.71M01.001 1-20 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 27: Mean Time To Repair

    (2) VIDEO ASSY P/N 55.71M02.001 (3) USB ASSY P/N (OTPIONAL) 55.74506.001 1.6.2 Mean Time to Repair 1.6.2.1 Module Level Less than 10 minutes 1.6.2.2 Component Level Less than 15 minutes 1.6.3 Accessibility 1.6.3.1 General All panels, covers, and major assemblies are removable without disruption of permanent mounting or fasteners 1.6.3.2 Outside Cabinet, access to the following elements -Operating Controls: see section 4-3...
  • Page 28: Fig.2 Pincushion Measurements

    Fig 1 Linearity Measurements X11 ~ X18 Xmax - Xmin ------------------- X 100% < 5% Xmax + Xmin Ymax - Ymin ------------------- X 100% < 5% Ymax + Ymin Fig.2 Pincushion Measurements 1-22 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 29 ∆ y1 ∆x1 ∆ x2 ∆ y2 " [AC+EG]/2, [AG+CE]/2 represented as display area width and " height " Top/Bottom Pincushion = y1 or " Side Pincushion = x1 or x2 " Linearity (TCO99) = x1/x or y1/y System Overview API Confidential 1-23 No Copy/Reproduction Allowed...
  • Page 30 ∆ x2 ∆ y2 [AC+EG]/2, [AG+CE]/2 represented as display area width and height Top/Bottom Pincushion = ∆y1 or ∆y2 Side Pincushion = ∆x1 or ∆x2 Linearity (TCO99) = ∆x1/x or ∆y1/y 1-24 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 31 Fig.4 Trapezoid Measurements * Each of the 4 corners of picture shall fall within the relevant area (F) illustrated up (hatched) * ABCD is the picture outlines. System Overview API Confidential 1-25 No Copy/Reproduction Allowed...
  • Page 32 " V (Cent) = |A-B| < 6mm " H (Cent) = |C-D| < 6mm − − − ≤ ≤ ≤ 0 02 0 02 0 03 " Orthogonality (TCO99) : 0 5 1 0 5 1 1-26 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 33 Fig. 6 Physical Distortion, Front System Overview API Confidential 1-27 No Copy/Reproduction Allowed...
  • Page 34 Fig. 7 Physical Distortion, Side View 1-28 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 35: Sl System Block Diagram

    Chapter 2 CRICUIT OPERATION THEORY 2.1 Deflection CKT 2.1.1 99sl System Block Diagram 19" Yoke signal source Video Amplifier Micro-controller & RS-232 Interface Horizontal & Vertical Deflection Circuit HV Generation Switching Power Supply & 90 - 264 VAC Power Saving FIGURE.1 99sl System Block Diagram 2.1.2 Deflection and HV generation circuit introduction 2.1.2.1 Deflection and HV generation circuit block diagram...
  • Page 36: Sl Function Block Of Deflection & Hv Generation

    Hor. output circuit. One is H-size processing circuit, another is high voltage processing circuit. Separated Hor. output circuit has a big advantage: excellent high voltage regulation, so this monitor adopts the advantage to get perfect picture. 2.1.2.2 99sl Function Block of Deflection & HV generation API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 37 G1 & Spot Killer (Q256,Q253) To Video V-BLANK (Q255) H-Clamp CLBL To Video Vertical Deflection VOUT1 Vertical Output H/H+V Yoke (IC201--TDA8351) VOUT2 Sync. Video (Q301) Input V Sync. X-Ray Input Protection (Q360) 27KV Output HDRV Generation Circuit Driver G5-1 With FBT (Q313) AutoSync G5-2...
  • Page 38: Internal Function Block Diagram Of The Autosync Deflection Controller Tda4856

    TDA486X and TDA8351. TDA4856 provides extended functions e.g. as a flexible B+ control, an extensive set of geometry control facilities, and an combined output for horizontal and vertical focus signals. API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 39: Sl Autosync Deflection Controller Circuit

    2.1.4. 99sl Autosync Deflection Controller circuit R351 R320 4.7K +12V IC303 LM7812 100U +17VA IC304 VR301 TDA4856 VFOCUS L306 R394 C358 C348 (H-SIZE) ZD311 HFLB FOCUS 0.0082U 1000U 5.1V 100V XRAY I.C. C350 (EPI) 105C (EL) 1000U HPLL2 D319 R339 R393 R392 C395...
  • Page 40: Sl Spot Killer And G1 Circuit

    When 99sl monitor turns off, because +200V will discharge to 0V that is faster than -210V, so it makes Q256 ON and pull low G1 to about -182V. Thus, G1 makes a barrier for CRT cathode signal, and to prevent spot to destroy CRT. 2.1.7 Tilt API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 41 +12V +24V R427 Q411 M401 D667 LM324 R414 IC401 TILT R432 R415 COIL OPEN Q412 4.7K 1/4W 100V B647 +12V (PE) R421 R422 R429 TILT R428 Fig8: Tilt circuit IC401 LM324 is offered for voltage amplifier to supply 0 ~ 24 at op-amp output terminal The amplifier signal is input to tilt coil via Q411,Q412 current amplifier to get positive and negative coil current for tilt , adjustment.
  • Page 42: Horizontal Size Processing Circuit

    IC304 pin 6 BDRV . Q336, D330, R3815, R3814, Q373, Q354, D353, D363, D312,R359, C329 constitute two stages protect soft start circuit to protect Q314 from surge voltage when monitor power on. API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 43: H-Size Pwm Converter

    2.1.11 H-size PWM Converter IC304 constitutes a PWM comparator to compare east-west parabola signal with sawtooth waveform signal and output a PWM pulse at pin6 of IC304 . What is PWM ? PWM means pulse width modulation. Basically PWM function needs two signal : one is modulation signal (high frequency), another is modulated signal (low frequency).
  • Page 44 Cs capacitors includeC337, C338, C339, C340, and C341 is always on in every modes. C337, C338, C339, C340 and C341 are switched by IC307 and switch control signal are sent from UC IC801. The switch truth table is as follows : 2-10 API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 45: H-Linearity Control Circuit

    2.1.16 H-linearity control circuit H-LINEAR +6.5V Q349 +6.5V H945 Q324 Q348 TIP31C H945 R3960 R3959 R3981 R365 (OPEN) L305 D335 RGP10G C369 680P R3918 500V C336 0.18 400V (PMA) (TAI YANG) FIGURE.13 H-linearity control circuit This monitor use a special linearity coil to get good linearity picture from 31kHz to 98kHz modes. For the purpose of getting a DC control voltage from IC801 pin 28 H-Linear , and buffered by Q349, Q348.The DC control voltage proportional to different frequency.
  • Page 46: High Voltage Processing Circuit

    High voltage output circuit also use negative pulse circuit owing to excellent high voltage regulation effect. Other circuits are the same as H-size processing circuit. 2.1.20 Sawtooth waveform generator Q305, Q306, C310 constitutes sawtooth generator and input sawtooth signal to IC301 pin6 PWM comparator. 2-12 API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 47: High Voltage Feedback Compensation Circuit

    2.1.21 High voltage feedback compensation circuit For the purpose of getting accurate CRT anode voltage 26kV in different modes and different patterns, high voltage feedback compensation circuit is very important. IC302 functions as a integrator which offer frequency compensation. R309, C307, C325 are frequency compensation elements which make voltage regulation excellent.
  • Page 48: Horizontal Focus Circuit

    This model, 7299sl, will support powerful OSD function to help end user fine adjustment. The Microcontroller circuit of the 7299sl can determine what mode it is by detecting the frequency of horizontal and vertical synchronous and the polarity of horizontal synchronous, and provide DC voltages to control the picture and save the adjusted value into the EEPROM by using the OSD, "On Screen...
  • Page 49: Mcu And The Peripheral Circuit Operation Theory

    (MTV112) Degaussing Detecting the Hsync Blanking input signals Vsync SC0 - SC2 of H,Vsync & H-polarity H-polarity. OSD IC EEPROM Display OSD and output Preset mode data, Searching for PWM to video User saved mode data. the same saved circuit mode timing Reset circuit To deflection...
  • Page 50: What Are The Valid Key Functions For User

    2.2.3.5 How to display the OSD menu The OSD IC of 7299sl is MC141542 which is developed by vender, it receives the data of the OSD fonts and attribute what we want to display on the screen from the MCU by 2 wires of...
  • Page 51: Flowchart For Auto

    2.2.3.7 Flowchart for Auto Start Press i-key? Change mode? Preset timing? User saved timing? Read data Detect if Determine a of timing from the pattern preset timing EEPROM is normal? Determine h_phase & h_size Determine v_center &v_size Show the correct pattern on screen 2.3 Switching Power Supply Operation Theory 2.3.1.
  • Page 52: Rectifier And Filter

    R636 C629 VRT602 D612 (OPEN) D608 330U (OPEN) RGP10J RGP10J 200V 1/2W (EL) D604 RGP10D FR701 L601 4.7UH D605 L609 IN4148 (BEAD) Q602 IRFPC50 R609 R611 R607 R608 C614 0.15 (OPEN) 2-18 API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 53: Output Rectifier And Filter

    In a flyback converter operated in the discontinuous mode, the energy stored in the flyback transformer (actually an inductor) must be zero at the beginning and end of each switching period During the "ON" time, energy taken from the input is stored in the transformer when the switching transistor turn-off, this stored energy is all delivered to the output.
  • Page 54: Feedback Circuit

    TR602 is a PTCR to control degaussing coil current 2.3.3.8 power saving control Mode H-sync V-sync Power Rating Normal Normal Normal Green Stand-by None Normal Orange Suspend Normal None Orange Flash 2-20 API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 55: Video Circuit

    None None Orange Flash When both of the H-sync and V-sync are none, the power supply +6.3V,+16V,+24V,+80V and +200V output will be cut-off , the power input will be under 5W. When the H-sync is none , the power supply +16V output will be cut-off . The power input will be under 15W .
  • Page 56: Block Diagram

    Q121,Q122 R,G,B Bias Q141,Q142 Q161,Q162 Fig. 1 Block Diagram of 7299SL Video 2.5 Circuit Descriptions 2.5.1 Preamplifier [LM1282] The IC101, LM1282, is a high bandwidth preamplifier with OSD mixer. When CUT (OSD select) signal is low, video inputs are selected; when CUT signal is high, OSD inputs are selected.
  • Page 57: Circuit Operation Theory

    L103 +12VA C125 C137 0.1U 100U (EL) (MONO) 105C PC5V ZD107 (OPEN) IC101 RXD(SCL) C178 MM1382 100P ZD106 5.1V RDRV C116 R117 0.1U ROSD ROSD TXD(SDA) R137 (MONO) GOSD GOSD C177 R157 100P ZD105 BOSD BOSD 5.1V R185 GDRV OSDSEL C115 0.1U C151...
  • Page 58 Fig.3 CRT Driver IC102 C153 0.1U R114 From IC101 Rout (MONO) Q111 RGB-CAL C1906 R134 To IC1902 From IC101 Gout Q131 C1906 R154 From IC101 Bout Q151 C1906 R171 1/4W Fig. 4 Buffer 2-24 API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 59: Dc Restoration

    2.5.4 DC Restoration The amplified video signals are AC coupled to cathodes. So a DC restoration circuit is needed to fix their DC level. By adjusting R,G,B BIAS voltage, the raster can be set to a specific color temperature. The control range at Q112/Q132/Q152 emitter is about 80V ~ 53V. Because the blanking pulse at IC102 output is about 10V, the control range of DC level at cathodes is about 70V ~ 43V.
  • Page 61: Alignment Procedure

    Chapter 3 ALIGNMENT PROCEDURE 3.1Preparation for alignment : (I) Setup unit and keep it warm up at least 30 minutes (II) Signal mode Mode Frequency (H/V) Display 31.47 K / 70.04 ( - / + ) 640 * 400 (VGA 1) 31.47 K / 59.94 ( - / - ) 640 * 480 (VGA 1) 46.875 K / 75 ( + / + )
  • Page 62: Convergence Adjustment

    COLOR ANALYZER (CA100) d. RS232 CABLE (9P) connect RS232 BOX to PC(COM1) e. CA100 CABLE to PC(COM2) f. ADJUST PROGRAM for 7299sl B. Alignment procedure a. Press "SPACE BAR " to get raster pattern and set contrast and brightness to maximum position, adjust the G2 VR such that the max.
  • Page 63: Usb Test Procedure (Optional)

    [Off Mode] e. Remove both syncs from input, the unit will go into "Off" mode. The picture will disappear, and the LED indicator is amber (blinking). The power consumptionshould be less than 5W in this case. f. Input H-sync and V-sync signals in case c, d and e, the unit will recover to normal state, and the LED indicator is green.
  • Page 65: Troubleshooting

    4.1 Introduction This Acer 7299sl trouble shooting guide has flow chart and trouble list to show the easy problem solution for engineers. Please according to this guide and step by step to maintain your Acer 7299sl when the system has any trouble.
  • Page 66: Trouble Shooting For Short Circuit

    HV feedback circuit failure IC302,IC301,D345 small Bad H-linearity Cs switching error IC307,Q325,Q326, Q327,Q328,Q329 or check MCU circuit SC0~SC4 H-linearity unbalance Linear coil malfunction Q324,L305 ,Q348,Q349 10 Bad V-linearity Ver. circuit failure IC201 API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 67: Trouble Shooting For No Picture

    11 Asynchronization AFC feedback failure IC304 12 Asynchronization Defelction IC failure IC304,C355,C354,R39 22,C356,C353,C352 13 Spot when power OFF Spot killer circuit failure Q256,Q253,ZD305,ZD 14 Hor. size too small H-size VR had not been Adjust VR301 adjusted 15 Ver. size too small Ver.
  • Page 68: Trouble Shooting For Bad Video

    Check OSD,MCU Figure.4 Trouble shooting for bad video Item Status Reason Check Note No video Short circuit damage IC102,IC101 No video Video blank Q352,IC101 No video Video contrast zero IC1901,IC101 API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 69: Power Supply

    Video smear or tilt Check Hclamp pulse IC101,IC102,Q102,Q103 Bad video quality Check IC101,IC102 IC101,IC102 Lack one or more video Video output path open or Check open or short circuit color short circuit from video input to output Lack one or more video Components damage IC102,IC101 color...
  • Page 70: Check Mcu And Osd For No Video Output

    (1) On the Main Board (a) SCL (IC801 pin 22) (b) SDA (IC801 pin 21) (2) On the VIDEO Board (a) SCL ( IC1901 pin 8) (b) SDA ( IC1901 pin 7) API Confidential 7299sl Service Guided No Copy/Reproduction Allowed...
  • Page 71: Check Osd,Mcu For No Osd Window

    4.8 Check OSD, MCU for no OSD window Check OSD, MCU for no OSD window Start Check +5V, ok? (1) IC1901(OSD IC) pin4 ,6,17 Check +5V power and IC1903 Check Check IC1901 (OSD IC) pin2,3 have DC 1~3V pin 2,3 with oscillation wave? and the R,C CKT Check IC1901(OSD IC) pin5(HBNK)&...
  • Page 73 Appendix A 7299SL Spare Parts List PART NUMBER DESCRIPTION LOCATION 55.71M01.010 MAIN BD 7299SL PHILIPS/TCO 01.00112.000 IC MONI CTRL MTV112E IC801 02.24C08.000 IC EEPROM 24C08 8K DIP 8P IC802 04.00082.010 IC OP TL082 DIP 8P IC302 04.00324.010 IC OP LM324 DIP 14P IC401 04.00393.020...
  • Page 74 T304 19.40102.001 CHOKE COIL 5MH DR 16*18 L304, L307 19.40102.021 CHOKE 1.1MH EER-28L L303 19.40131.001 LINE FILTER 18MH L606 19.50049.011 LINEAR COIL 3.3UH 7299SL L305 19.90041.001 COIL DEGAUSSING 7299C 19.70054.001 XFORM FBT 7299SL T301 19.90046.001 FOCUS TRANSFORMER T401 22.50015.031 RELAY RY-5W-K RL701 22.50025.001...
  • Page 75 60.71M17.XXX ASSY U/C C2800 002 99SL 42.77504.021 BAG PE LDPE 900*800 ALL 44.74201.XXX CTN AB 574*545*600 47.71M03.001 CSN T-L EPS BASE ATT. 7299SL 47.71M04.001 CSN T-R EPS BASE ATT. 7299SL 47.71M05.001 CSN BTM EPS BASE ATT. 7299SL 49.71M01.XXX MANUAL ACER 7299SL...
  • Page 76 ISSUE DATE: January 21, 1999 7299sl (AV99sl) Spare Parts List P/N: 91.71M02.xxx ITEM DESCRIPTION PART NO. LOCATION IC MONI CTRL MTV112E 01.00112.000 IC801 IC ASIC AP3113 01.03113.000 IC1902 IC ASIC AP3114 01.03114.001 IC1901 IC EEPROM 24C08 8K DIP 8P 02.24C08.000 IC802 ** Please advise model name and location when you order above IC EEPROM, then, we could write program in advance.
  • Page 77 FET MOS SLA5046 12P 06.05046.020 IC307 XTPR 2SC5584 SOT 430 NPN P 06.05584.010 Q314 LED D5*8.3 GRN/YEL 06.066GY.14X LED701 FET MOS SFS9634 NC TO-220F 06.09634.020 Q321 DIODE S.B. 1N5818 30V 06.1R003.110 D308,D307 DIODE REC 1N4004 400V 06.1R040.030 D601,D602 DIODE FAST RGP10G 400V 1A 06.1R040.120 D302,D348,D3703,D3704 DIODE FAST RGP10M 1KV 1A...
  • Page 78 THERM 100/5 NTC 17.60030.00A TR201 THERM 5/15 NTC RF8 17.60033.00A TR601 THERM 9 OHM PTC 2P 17.60051.9R0 TR602 PEAK COIL 100UH 18.10122.03D L306 PEAK COIL 4.7UH 18.4R722.03D L605 XFORM H-DRV EI-19 19.20104.001 T302 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
  • Page 79 F601 CORD H05W-F#18*3C 10A250V EUR 27.82718.011 BAG PE LDPE 900*800 ALL 42.77504.021 ** 7299sl (AV99sl) Board & CRT & Cosmetics & FBT -- 91.71M02.001 / 002 MAIN BD 7299SL PHILIPS/TCO (MI) 55.71M01.010 91.71M02.001 / 002 VIDEO BD 7299SL (MI) 55.71M02.001 91.71M02.001 / 002...
  • Page 80 ASSY BASE C2800 002 99SL TCO99 60.71M03.011 91.71M01.002 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...