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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.
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API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
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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...
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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...
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Appendix A ............................A-1 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
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.
-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...
(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...
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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...
-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...
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.
(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...
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.
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.
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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...
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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...
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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)
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...
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 <=...
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...
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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...
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...
(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...
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...
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∆ 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...
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∆ 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...
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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...
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" 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...
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Fig. 6 Physical Distortion, Front System Overview API Confidential 1-27 No Copy/Reproduction Allowed...
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Fig. 7 Physical Distortion, Side View 1-28 API Confidential 7299sl Service Guide No Copy/Reproduction Allowed...
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...
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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...
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...
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...
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+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.
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...
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).
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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...
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.
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...
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.
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...
(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...
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...
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.
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.
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...
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 .
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.
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.
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 ( + / + )
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.
[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.
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.
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...
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.
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...
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...
(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...
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)&...
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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...
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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...
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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.
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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...