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Pages: 14
Pages: 54
[Page 1] Acer AF715
SERVICE GUIDE COLOR MONITOR (AF715 Series) 41AB793Z-ACER-A00 P/N : B793Z-01-A Date: Mar-18-03 ...
[Page 2] Acer AF715
1 THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIM...
[Page 3] Acer AF715
2 TABLE OF CONTENTS PAGE 1. SPECIFICATIONS ..................................................................................................... 3-4 2. PRECAUTION AND NOTICES .......................................................................
[Page 4] Acer AF715
3 1. SPECIFICATIONS FOR 7Klr SERIES COLOR MONITOR 1. CRT : 43.2CM(17") 90 Deflection, 29mm Neck, Pure flat 0.25mm Dot Pitch, Non-Glare Screen 2. Viewable image Size: 40.6CM (16") diagonal 3. Display Color: Unlimited Colors ...
[Page 5] Acer AF715
4 11. Power Source: Switching Mode Power Supply AC 100 ~240V, 50/60Hz Universal Type 12. Operating Temperature: 10 O C to 35 O C Ambient 13. Humidity : 10% to 85% Relative, Non-Condensing 14 • Weight: 17.0 Kgs(Net), 20.5Kgs(Gro...
[Page 6] Acer AF715
5 2. PRECAUTIONS AND NOTICES 2-1 SAFETY PRECAUTIONS 1. Observe all caution and safety related notes located inside the display cabinet. 2. Operation of the display with the cover removed, may cause a serious shock hazard from the display p...
[Page 7] Acer AF715
6 2-4 HIGH VOLTAGE WARNING Operation of monitor outside of cabinet or with back removed may cause a serious shock hazard. Work on this model should only be performed by those who are thoroughly familiar with precautions necessary when work...
[Page 8] Acer AF715
7 3. OPERATING INSTRUCTIONS This procedure gives you instructions for installing and using the 7K color display. 1. Position the display on the desired operation and plug the power cord into a convenient AC outlet. Three-wire power cord m...
[Page 9] Acer AF715
8 4. ADJUSTMENT 4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS 1. Approximately 30 minutes should be allowed for warm up before proceeding. 2. Adjustments should be undertaken only on those necessary elements since most of them have been care...
[Page 10] Acer AF715
9 6500 9300 FH :68.7KHz FV :85.0Hz 70 R G B R G B CONTRAST H-MOIRE REDUCE BRIGHTNESS V-MOIRE REDUCE(No use) H-CENTER R-GAIN H-SIZE G-GAIN V-CENTER B-GAIN V-SIZE R-BIAS ZOOM ...
[Page 11] Acer AF715
10 3. White Balance, Luminance adjustment: A. Bias (Low Luminance) adjustment: (a) Set mode 5 1024×768 Fh: 68.6KHz full white pattern. (b) To make the adjustment condition is under the Factory preset window. Same as step 2-C. (c) Warm...
[Page 12] Acer AF715
11 RELATIVE PLACEMENT OF TYPICAL COMPONENTS Purity Magnets Deflection Yoke 4-pole Convergence Magnets 6-pole Convergence Magnets 6. Convergence adjustment A. Produce a magenta crosshatch on the display. B. Adjust the focus for the ...
[Page 13] Acer AF715
12 On Screen Display Controller The IC802 on video board is designed for display the built-in characters or fonts onto monitor screen. The display operation is by transforming data and control information from micro controller to RAM through a...
[Page 14] Acer AF715
13 5-4 TRANSISTOR & DIODE CIRCUIT LOCATION FUNCTION AL DESCRIPTION D101 For C103 Discharge Q101 For LED Indicator Control D411 Speed up for Q410 D412 Damping Diode Q405 HDRV Mute Control Q409 Horizontal Driver Q410 ...
[Page 15] Acer AF715
14 LOCATION FUNCTION AL DESCRIPTION Q901 MOS FET for Switching Power Control Q904 Start up CKT for IC901 Q912, Q913 To Turn 6.3V Supply Off when the Off Mode is Required Q908, Q909 To Turn 16V Supply Off when the Off or Suspend Mod...
[Page 16] Acer AF715
15 6.TROUBLE SHOOTING CHART 6-1 NO RASTER, CRT RELATIVE CIRCUIT PROBLEMS REFER ITEM S.M.P.S. CHECK CRT'S HEATER RELATIVE CIRCUIT BRIGHTNESS SET TO MAX. THEN CHECK CRT G1 VOLTAGE NG NG NG NG NG OK OK OK OK OK CHECK THE HIGE VOLTAGE ...
[Page 17] Acer AF715
16 2.ABNORMAL VIDEO LEVEL ON SCREEN CHECK 12V RELATIVE CIRCUIT OK NG OK NG NG OK OK CHECK THE VOLTAGE OF IC801 CHECK THE SIGNAL INPUT OF R.G.B. ABOUT 0.7Vpp CHECK THE VIDEO OUTPUT OF IC801 R.G.B. APPROACH STANDARD CHECK SIGNAL CABLE OR ...
[Page 18] Acer AF715
17 6-2 ABNORMAL DISPLAY 1.NO SIGNAL ON SCREEN CHECK FBT RELATIVE CIRCUIT LESS THAN 400 V OK NG NG OK OK NG OK NG CHECK THE OUTPUT VOLTAGE CHECK THE B+ VOLTAGE OF CHECK THE VOLTAGE OF CRT CATHODE ABOUT 40Vpp CHECK THE VOLTAGE OF FBT...
[Page 19] Acer AF715
18 6-3 NO BLANKING NG OK CHECK THE RELATIVE CIRCUIT OF BLANKING CHECK THE RELATIVE CIRCUIT ON MAIN PCB CHECK G1 RELATIVE CIRCUIT CHECK IC801 PIN 16 ON VIDEO PCB, Q705, R718, C707 ON MAIN PCB OF C433, D410, R635, R636, IC105 6-4 HOR./...
[Page 20] Acer AF715
19 6-5 ABNORMAL HORIZONTAL DEFLECTION 1. ABNORMAL HORIZONTAL WIDTH OF VIDEO NG OK CHECK THE RELATIVE CIRCUIT CHECK THE RELATIVE CIRCUIT OF SMPS. READJUST H-WIDTH FUNCTION OF Q404, Q405, & Q406 CHECK THE HV OF CHECK FBT B+ VOLTAGE Q9...
[Page 21] Acer AF715
20 6-6 ABNORMAL VERTICAL SCANNING 1. ABNORMAL VERTICAL SIZE OK NG OK NG READJUST V-SIZE FUNCTION VALUE RELATIVE CIRCUIT CHECK VERT. OSC CIRCUIT RELATIVE CIRCUIT NG CHECK THE IC601 PIN 7 ABOUT 40V CHECK IC601 PIN 6 OUTPUT ABOUT 38Vpp CH...
[Page 22] Acer AF715
21 6-10 POWER SUPPLY TROUBLE SHOOTING CHART BEFORE CHECK SW.REG. PLEASE REFER TO THE POWER SUPPLY BLOCK DIAGRAM POWER SUPPLY OUTPUT: (A) CONSTANT OUTPUT : 6.5V, 16V, 80V, 180 V, -10V BEAD SET ABNORMAL VARIABLE OUTPUT NG OK NG OK NG O...
[Page 23] Acer AF715
22 7. MECHANICAL OF CABINET FRONT DIS-ASSEMBLY ...
[Page 24] Acer AF715
23 8. PARTS LIST OF CABINET LOCATION B793ZSNWAEN5L SPECIFICATION REMARK P993Z-3 CMB793Z5NAYL CHASSIS FOR B793Z-5L AC 1A 503503 47 SCREW FOR CRT 5A 38 8 RUBBER WASHER 7A 1 4 25 WOOD...
[Page 25] Acer AF715
24 PARTS LIST OF CHAS LOCATION CMB793Z5NAYL SPECIFICATION REMARK AMB793Z5NAYL MAIN BOARD B793Z-5L ACE CRB793Z5NAYL CRT BOARD B793Z-5L ACER 1A 421 4128 SCREW 9A 203 9 PIN NR901 USE 11A6033 1 P...
[Page 26] Acer AF715
25 LOCATION CMB793Z5NAYL SPECIFICATION REMARK ★ C907 67A 3022115D 220UF +-20% 450V HEC C912 65A517M103 3A6213 0.01uF + -20% Z5U 500V C917 67A 305102 3 1000 UF +-20% 16V C920 63A210J3344FC 0.33UF 630V C934 67A 215...
[Page 27] Acer AF715
26 LOCATION CMB793Z5NAYL SPECIFICATION REMARK ★ NR901 61A 58 8 L NTCR15OHM+-20%2.5A UPPE P106 33A3278 7D WAFER*PLUG Insert on the contrary P402 33A3192 4 4P PLUG P901 33A8009 2 2 PIN MIN.JUMOER P903 33A8009 ...
[Page 28] Acer AF715
27 95A 90 23 TIN COATED LOCATION AMB793Z5NAYL SPECIFICATION REMARK 715A1027 1 CMPC (J201) 95A 90 23 TIN COATED (R103) 61A 60239252T CFR 3.9K OHM+-5% 1/6W (R104) 61A 60268252T CFR 6.8K OHM+-5% 1/6W C101 65A...
[Page 29] Acer AF715
28 C454 67A 305109 7T 1UF +-20% 50V LOCATION AMB793Z5NAYL SPECIFICATION REMARK C455 67A 309109 7T 1.0UF +-20% 50V C457 65A 44447113T 470PF +-10% Z5P 50V C459 65A 444101 5T 100 PF 10% 50V Y5P C461 67A 309479 7T 4.7U...
[Page 30] Acer AF715
29 @ C950 65A 1K221 2T6052 220PF/1KV Z5P+-10% LOCATION AMB793Z5NAYL SPECIFICATION REMARK C953 67A 305101 7T 100UF +-20% 50V C954 65A 450104 7T 0.1UF +80-20% 50V Y5V @ C955 65A517K471 1T6213 470PF/500 Z5F +-10% C95...
[Page 31] Acer AF715
30 D927 93A 6038P52T PS102R LOCATION AMB793Z5NAYL SPECIFICATION REMARK D928 93A 6450152T SWITCHING DIODE BAV21 D929 93A 64 1152T DIODE 1N4148 D931 93A 64 1152T DIODE 1N4148 @ D932 93A 64 1152T DIODE 1N4148 ...
[Page 32] Acer AF715
31 J050 95A 90 23 TIN COATED LOCATION AMB793Z5NAYL SPECIFICATION REMARK J051 95A 90 23 TIN COATED J052 95A 90 23 TIN COATED J053 95A 90 23 TIN COATED J054 95A 90 23 TIN COATED J055 95A 90 23 TIN COATED...
[Page 33] Acer AF715
32 J116 95A 90 23 TIN COATED LOCATION AMB793Z5NAYL SPECIFICATION REMARK J117 95A 90 23 TIN COATED J118 95A 90 23 TIN COATED J119 95A 90 23 TIN COATED J120 95A 90 23 TIN COATED J121 95A 90 23 TIN COATED...
[Page 34] Acer AF715
33 Q904 57A 419 P T TRAN 2SC945P/NEC TAPING LOCATION AMB793Z5NAYL SPECIFICATION REMARK Q905 57A 708 1 T 2SC4002E Q906 57A 721 1 T DTC114ESA Q907 57A 419 P T TRAN 2SC945P/NEC TAPING Q912 57A 446 1 T TRAN.2...
[Page 35] Acer AF715
34 R409 61A 17222352T CFR 22KOHM+-5% 1/4W LOCATION AMB793Z5NAYL SPECIFICATION REMARK R410 61A 60236152T CFR 360 OHM+-5% 1/6W R411 61A 17210552T CFR 1MOHM +-5% 1/4W R412 61A 60251352T CFR 51K OHM +-5% 1/6W R413 61A 2...
[Page 36] Acer AF715
35 @ R480 61A175L15052T CFR 15 OHM +-5% 1/2W LOCATION AMB793Z5NAYL SPECIFICATION REMARK R482 61A 60210252T CFR 1K OHM+-5% 1/6W R483 61A 60247152T CFR 470 OHM +-5% 1/6W R485 61A 60215152T CFR 150 OHM +-5% 1/6W R488 ...
[Page 37] Acer AF715
36 R745 61A 60218252T CFR 1.8K OHM+-5% 1/6W LOCATION AMB793Z5NAYL SPECIFICATION REMARK R901 61A175L47452T CFR 470K OHM +-5% 1/2W @ R902 61A212Y10652T 10MOHM +-5% 1/2W 妮 R903 61A175L10152T CFR 100 OHM +-5% 1/2W ...
[Page 38] Acer AF715
37 PARTS LIST OF CRT PC BOARD LOCATION CRB793Z5NAYL SPECIFICATION REMARK ARB793Z5NAYL CRT BOARD B793Z-5L ACER 40A 581 26605 LABEL 87A3504 ZW CRT COCKET(QQ FOCUS) 705A792XR56 01 IC802 ASS'Y ...
[Page 39] Acer AF715
38 C816 67A 309101 3T 100UF +-20% 16V C817 67A 305220 9T 22UF +-20% 100V LOCATION ARB793Z5NAYL SPECIFICATION REMARK C818 64A178J104 0T CL21X0.1UF 63V +-5% C819 65A 44210013T 10PF +-5% NPO 50V C820 65A 44210013T 10P...
[Page 40] Acer AF715
39 FB851 71A 55 9 T CORE RF BEAD RH 3.5X6X0 J801 95A 90 23 TIN COATED LOCATION ARB793Z5NAYL SPECIFICATION REMARK J802 95A 90 23 TIN COATED J803 95A 90 23 TIN COATED J804 95A 90 23 TIN COATED J805 ...
[Page 41] Acer AF715
40 R855 61A 17222052T CFR 22OHM+-5% 1/4W R856 61A 17222052T CFR 22OHM+-5% 1/4W LOCATION ARB793Z5NAYL SPECIFICATION REMARK R857 61A 17210552T CFR 1MOHM +-5% 1/4W R858 61A 17210552T CFR 1MOHM +-5% 1/4W R859 61A 172105...
[Page 42] Acer AF715
41 PARTS LIST OF IC601 ASS'Y LOCATION PART No. SPECIFICATION REMARK 5A 42501 Underlay Slice 5A 71 1 TRANSISTOR HOUSING FOR"IC601" 32A3028 8 MICA "FOR IC601" 90A 376...
[Page 43] Acer AF715
42 Q420 57A 600 14 CEPF630 BY CET PARTS LIST OF D921 ASS'Y LOCATION PART No. SPECIFICATION REMARK 90A6030 1 HEAT SINK D921 93A 6073A F R D 3A/400V 31DF4/I.R PARTS LIST O...
[Page 44] Acer AF715
43 9. BLOCK DIAGRAM R e c t i f i e r H V : 2 5 K V T 4 0 3 G 4 / G 3 Q 4 2 3 ~ Q 4 2 6 P 4 0 1 Q 9 1 1 Q 9 1 1 Q 9 1 0 I C 9 0 5 B D 9 0 1 B r i d g e C O N T R O L P 2 0 2 P 2 0 1 V C H C C S 0 ~ C S 5 H / V C O N V E R G E N C E I...
[Page 45] Acer AF715
44 10. IC BLOCK DIAGRAM IC201/IC701/IC906 LM358 IC101 NT6861 ...
[Page 46] Acer AF715
45 IC102 24C08 IC401 TDA4856 CONTROL H-SIZE AND V-SIZE 9213029282726 8 5 3 4 6 32 20 13 12 113121222423 14 16 17 19 18 10 7 25 15 B+ STAGE H-OUTPUT A...
[Page 47] Acer AF715
46 ...
[Page 48] Acer AF715
47 SUPPLY VOLTAGE OUTPUT STAGE SUPPLY FLYBACK GENERATOR INVERTING INPUT GROUND OUTPUT NON-INVERTING INPUT IC601 TDA8172/TDA9302 IC40...
[Page 49] Acer AF715
48 IC802 NT6828 IC801 TDA4887 ...
[Page 50] Acer AF715
49 IC901 3842 VCC GND O/P Ct/Rt Is COMP. F.B Vref 8 2 1 3 4 6 5 7 U.V.L.O. 36V 1V 1/2 Vref OSCILLATOR LATCH PWM S R COMP C.S. 1/3 AMP ERR LOGLC RESET ...
[Page 51] Acer AF715
50 IC904 LM7812 GND3 OUTPUT2INPUT 1 ELEMENT PASS SERIES PROTECTION THERMAL PROTECTION SOA AMPLIFIER ERROR VOLTAGE REFERENCE GENERATOR CURRENT CIRCUIT STARTING ST24W04 IC102 VCC MODE/WC SCL SDAVSS E2 E1 PRE 1 2 3 45 6 7 8 TL431 I...
[Page 52] Acer AF715
51 11 PCB LAYOUT 11-1 MAIN PCB LAYOUT F1027-I S G D Q 4 2 0 J 0 0 9 J030 D 4 0 5 LED2 LED1 LED3 <SW102> <SW104> <SW105><SW103> (SW102) (SW104) S W 1 0 2 ( S W 1 0 5 ) SW104 (SW103) SW105 SW103 SW101 JK501 4 3 2 1 T902 C ...
[Page 53] Acer AF715
52 11-2 CRT BOARD LAYOUT FB810 D 8 6 3 J804 D808 R 8 3 0 GND4 GND5 J801 ZD801 G N D 1 6 1 IC804 R 8 6 3 1 4 1 P 8 0 2 5V SCL GND GND SDA 12V FBP BLK VFB CLP H.T ABL G1 80V D858 (R817) S G...
[Page 54] Acer AF715
53 12 SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 1234567891011121314 1 2 3 4 5 1 2 3 4 5 6 12 1 2 3 45 6 7 8 Y.Z.OU H.Z.YU Mar-18-2003 AF715/AC915 P/N APPROVED BY CHECKER DRAWED BY DATE MODEL 715A1027-* CMPC-AF715/AC915 CRPC-AF715/AC915 03/14/03 79AS793-1...
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