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Acer AC701 Manual

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1. DISPLAY ALIGNMENT.............................................................................. 2
A. TIMING & DISPLAY SIZE .......................................................................................................................... 2
B. PICTURE POSITION ................................................................................................................................. 2
C. LINEARITY ................................................................................................................................................ 2
D. ALIGNMENT PROCEDURE...................................................................................................................... 2
E. GEOMETRIC DISTORTION ...................................................................................................................... 3
F. WHITE BALANCE ALIGNMENT ................................................................................................................ 4
2. CONTROL AND CONNECT LAYOUT....................................................... 6
A. MAIN PCB .................................................................................................................................................. 6
C. PIN ASSIGNMENT .................................................................................................................................... 8
3. INTRODUCTION: ...................................................................................... 9
A. POWER SUPPLY....................................................................................................................................... 9
B. DEFLECTION: ........................................................................................................................................... 9
C. VIDEO:....................................................................................................................................................... 9
D. DIGITAL CONTROLLOR: .......................................................................................................................... 9
4. POWER SUPPLY .................................................................................... 12
A. RECTIFIER AND FILTER CKT: ............................................................................................................... 12
B. FLYBACK AND PWM CKT : .................................................................................................................... 12
C. SNUBBER CKT:....................................................................................................................................... 12
D. SYNCHRONIZED CKT: ........................................................................................................................... 12
E. POWER SAVING CKT: ............................................................................................................................ 12
F. DEGAUSS CKT: ....................................................................................................................................... 13
G. OVERLOAD PROTECTION CKT: ........................................................................................................... 13
5. DEFLECTION .......................................................................................... 14
A. SYNC RPOCESSOR: .............................................................................................................................. 14
B. HORIZONTAL PROCESSOR .................................................................................................................. 14
C. VERTICAL OUTPUT................................................................................................................................ 14
D. HORIZONTAL OUTPUT STAGE ............................................................................................................. 14
E. FLYBLACK TRANSFORMER .................................................................................................................. 14
6. VIDEO AMP. CIRCUIT............................................................................. 17
A. VIDEO PRE. AMP. ................................................................................................................................... 17
B. VIDEO AMPLIFIER .................................................................................................................................. 17
7. TROUBLESHOOTING............................................................................. 19
A. POWER SUPPLY CHECK ....................................................................................................................... 19
B. MONITOR CHECK FLOW CHART.......................................................................................................... 20
APPENDIX A: PARTS LISTS...................................................................... 23
APPENDIX B: P. C. B. ASSEMBLY ........................................................... 36
APPENDIX C: DISPLAY UNIT ASSEMBLY .............................................. 54
APPENDIX D: CRT & YOKE ASSEMBLY ................................................. 58
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Summary of Contents for Acer AC701

  • Page 1: Table Of Contents

    1. DISPLAY ALIGNMENT... 2 A. TIMING & DISPLAY SIZE ... 2 B. PICTURE POSITION ... 2 C. LINEARITY ... 2 D. ALIGNMENT PROCEDURE... 2 E. GEOMETRIC DISTORTION ... 3 F. WHITE BALANCE ALIGNMENT ... 4 2. CONTROL AND CONNECT LAYOUT... 6 A.

  • Page 2: Display Alignment

    1. DISPLAY ALIGNMENT A. TIMING & DISPLAY SIZE For all presetting mode shall be within the limitation: H. WIDTH 310 ± 5mm V. HEIGHT 232 ± 3 mm The external control range of the data area, shall be as follows; Max.

  • Page 3: Geometric Distortion

    E. GEOMETRIC DISTORTION E-1 Raster Rotation Signal No.1 to 6 a - b 2.0 mm E-2 Pincushion Signal No.1 to 6 : d1 2.0 mm Bottom : b1 2.0 mm Leftside : a1 1.5 mm Rightside : c1 1.5 mm E-3 Barrel Signal No.1 to 6 : d2...

  • Page 4: White Balance Alignment

    F. WHITE BALANCE ALIGNMENT F.1.1 Select timing #6 (VESA 68K 1024X768) with crosshatch pattern, adjust both horizontal and vertical OSD’s size control to get display size within 310x232p 2mm. F.1.2 Disconnect R.G.B. signal inputs, adjust OSD’s brightness and G1 control to it’s maximum position. F.1.3 Auto alignment(P103 must be short) Use automatic alignment equipment and program to get color temperature within specified coordinates.

  • Page 5: Preset Timing Chart

    G. PRESET TIMING Preset Timing Chart [ H-SYNC ] [ VIDEO ] [ V-SYNC ] [ VIDEO ] No Signal Name Clock (MHz) (kHz) (Hz) 25.175 31.469 59.940 640*480(60) VESA 56.250 53.674 85.061 800*600(85) VESA 94.500 68.677 84.997 1024*768(85) VESA 49.500 46.875 75.000 800*600(75) VESA...

  • Page 6: Control And Connect Layout

    2. CONTROL AND CONNECT LAYOUT A. Main PCB...
  • Page 7 B. VIDEO PCB...

  • Page 8: Pin Assignment

    C. PIN ASSIGNMENT C-1. Connect Table P102 DETECT DDC-SCL DDC-SDA V-sync H-sync 5V from PC C-2. Connect Function P803 : H-CENTER CONN P501 : TILT CONN P103: PRESET CONN P902 : DEGAUSSING COIL CONN P804 : X-RAY TEST PAD P105-P202 P104-P203 V-OUT OSD-SDA...

  • Page 9: Introduction

    3. INTRODUCTION: C708 is a 17” multisync color monitor. The horizontal frequency range is from 30khz to 70khz, and the refresh rate is from 50hz to 160hz. The circuit includes four major parts, the power supply circuit, the deflection circuit, the video circuit and the digital control circuit. is the function block diagram.
  • Page 10 OSD DATA V-sawtooth V-scan to DY D/A Output from uP H.V. 25KV to CRT Dynamic Focus to CRT G2 Voltage 550V to CRT...
  • Page 11 Fig2...

  • Page 12: Power Supply

    4. POWER SUPPLY A. RECTIFIER AND FILTER CKT: The 90Vac-265Vac input line voltage is rectified by BD901, and smoothed by C906 to provide DC operating voltage for the circuit. B. FLYBACK AND PWM CKT : When power is initially applied to the circuit,C909 charges through R903, Q902.When the voltage across C909 reaches a level of 16V, U901 is enabled, turning on Q903 and turning off Q902 to complete start-up action.

  • Page 13: Degauss Ckt

    F. DEGAUSS CKT: The DEGUSS signal which comes from micro-p to control degauss coil act or not. When DEGUSS is high, Q950 will be saturated to make RL901 working, AC line provides a degaussing current to degauss coil. G. OVERLOAD PROTECTION CKT: The primary current flows through the current sensing resistor R907.

  • Page 14: Deflection

    5. DEFLECTION A. SYNC RPOCESSOR: H-sync & V-sync input to U1(up), then up output the H-out, V-out signal to U401 TDA4856. The H-out, V-out always are positive. B. HORIZONTAL PROCESSOR Fig 3 is the block diagram of IC TDA4856. The IC TDA4856 output vertical sawtooth and H-Drive signal to produce, H.V deflection. Meanwhile TDA4856 output.
  • Page 15 Fig3...
  • Page 16 Fig4...

  • Page 17: Video Amp. Circuit

    6. VIDEO AMP. CIRCUIT A. VIDEO PRE. AMP. The video pre-amp IC is U201(LM1269). The input signal is 0.7Vpp, then pre-amp IC U201 amplify the video signal to 3~4Vpp. The U201 is controlled by up via I block diagram. B. VIDEO AMPLIFIER The video amplifier is U203(LM2467), it amplify video signal to about 40Vpp.
  • Page 18 Fig6 Fig7...

  • Page 19: Troubleshooting

    7. TROUBLESHOOTING A. POWER SUPPLY CHECK...

  • Page 20: Monitor Check Flow Chart

    B. MONITOR CHECK FLOW CHART B-1. No Raster...
  • Page 21 B-2. No Picture...
  • Page 22 B-3. No Vertical Deflection ( rester become a horizontal line)

  • Page 23: Appendix A: Parts Lists

    APPENDIX A: PARTS LISTS...
  • Page 24 The item of parts marked with yellow are recommended and Unique parts list, and items marked with Blue are top 20 failures provided by our PE if component level repair is required. Line Level Part Model MC708A MC708A02001 51A11230031 　 BC101SS82T2 　...
  • Page 25 CJ001B600T2 　 CJ056D6JNT0 　 CL4100056T0 　 DA1C708V110 　 DC1100006T0 　 DC1510005T0 　 DC1510009T0 　 DC382000002 　 XX0900T2119 　 XX0900T2127 　 XX0900T2135 　 XX0900T2143 　 XX0900T2178 　 XX0900T2194 　 AB012690000 　 AB024670000 　 AB024800000 　 AB068270000 　 CA001BU3101 　 CB10003M0TH 　 DC030008805 　...
  • Page 26 BB5094100T8 　 BBX042000T9 　 BBX120300T1 　 BBX120600T8 　 BC11N4148T8 　 BC1ER1010T0 　 BC1ER1060T0 　 BC1F40071T0 　 BC1FR1040T0 　 BC1FR1051T0 　 BC40HZ6C2T1 　 BC40HZ9A2T6 　 BC4HZ5C10T8 　 BCSN58171T0 　 CA001A601T8 　 CA001B631T8 　 CA001D600T2 　 CA010CCM0T6 　 CA010D6K0T8 　 CA010DCKHT0 　 CA010DEK0T0 　...
  • Page 27 CB047A6M3T0 　 CB10003M0TH 　 CB10004M1TH 　 CB47004M1T7 　 CC0010011T9 　 CC005A471T3 　 CC0100171T0 　 CC015A491T0 　 CC0220011T8 　 CC0220111T3 　 CC0220211T9 　 CC022A111T3 　 CC039B421TZ 　 CC0470111T7 　 CC0470491T4 　 CC1000071T5 　 CC1000111T2 　 CC1000211T8 　 CC1000491T0 　 CC1001111T7 　 CC1001125T2 　...
  • Page 28 CC2202111T9 　 CC2202211T4 　 CC2203011T8 　 CC2204111T8 　 CC2212125T8 　 CC2212225T3 　 CC2401111T0 　 CC2401211T5 　 CC2402111T4 　 CC2701111T8 　 CC2701225T0 　 CC3000011T1 　 CC3001111T1 　 CC3300211T0 　 CC3301111T9 　 CC3301211T4 　 CC3602111T1 　 CC3900211T6 　 CC3901111T5 　 CC3901211T1 　 CC3902211T5 　...
  • Page 29 CC8201211T1 　 CC8203111T4 　 CJ010B6JNT0 　 CJ010C6JNT1 　 CJ010D6GNT0 　 CJ022B6JNT0 　 CJ047B6JNT0 　 CJ047C6JNT0 　 CJ047D6JNT0 　 CJ068C6JNT0 　 CJ082D6JNT0 　 DA1C708V010 　 DC1100010T0 　 DC1510003T2 　 DC1510005T0 　 DC382000002 　 DC382000200 　 AB0043102T0 　 BB3004401T5 　 BB30945P1T5 　 BBX120300T1 　...
  • Page 30 CC022A111T3 　 CC0470111T7 　 CC0470211T2 　 CC0750011T2 　 CC0820111T0 　 CC1001211T2 　 CC1002111T1 　 CC1002211T7 　 CC1003211T1 　 CC1004011T5 　 CC1004211T6 　 CC2002211T9 　 CC2201211T0 　 CC2202011T3 　 CC2202491T0 　 CC2400211T0 　 CC2702011T7 　 CC3001211T6 　 CC3002211T1 　 CC3302491T1 　 CC4700011T1 　...
  • Page 31 AB024080002 　 AB048560000 　 AB078050300 　 AB078120300 　 AB081720007 　 BB108570001 　 BB206490010 　 BB355210000 　 BB406690012 　 BB506300305 　 BB506400300 　 BC1ER3040N3 　 BC1SC023001 　 BC5LA46B000 　 BD112P0M100 　 CB0220H4208 　 CB0470A4124 　 CB0470B4301 　 CB10013M00H 　 CC0010491M2 　 CC068A491M4 　...
  • Page 32 DC020136000 　 DC020136100 　 DC030010109 　 DC030013400 　 DC030018510 　 DC030020503 　 DC030031301 　 DC030091109 　 DC090001301 　 DC240002005 　 DEB11000009 　 DG200005600 　 DG300014800 　 DG600003100 　 ECM57032001 　 EEH76341004 　 EEM57141003 　 FCM76842000 　 FCN50346000 　 KA000001ZZ4 　 KA000600ZZ0 　...
  • Page 33 CA022DBMY07 　 CA047DBMY27 　 CB0470P4105 　 CB10004M1TH 　 CB10013M0T4 　 CB10014M006 　 CB1500FM019 　 CB4700AM004 　 CC0080867U0 　 CC0090884U0 　 CC033BL91M0 　 CC4702591N8 　 CF250000703 　 CJ047BXMX10 　 CL310004716 　 CL900042003 　 DC020144800 　 DC030039200 　 DC040005001 　 DC100001502 　 DC150007008 　...
  • Page 34 MAA70064400 　 MAB70008406 　 NA200600200 　 EXH97141100 　 FBC70831000 　 FBC70841000 　 FCC70821000 　 FCC70822000 　 FCM57042007 　 FHH56648004 　 MAB20085407 　 MAB70076400 　 EJ4C7081300 　 HB4C7081200 　 HDABOC70800 　 HGTMM6A0104 　 HGTMPRII118 　 HK3TX17M009 　 FAC70812000 　 FAV70015000 　 FHV79941000 　...

  • Page 35: Appendix B: P. C. B. Assembly

    APPENDIX B: P. C. B. ASSEMBLY...
  • Page 40 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 452A6030001 PCBA CRT/B 1 442A6030001 AIS CRT/B 2 AB012690000 IC 3 AB024670000 IC 4 AB024800000 IC 5 AB068270000 IC 6 CA001BU3101 CERAMIC CAP.
  • Page 41 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 442A6030001 AIS CRT/B 1 BC101SS82T2 DIODE 2 BC11N4148T8 DIODE 3 BC1FR1040T0 DIODE 4 BC4HZ5C10T8 ZENER DIODE 5 CA001A601T8 CERAMIC CAP. 6 CA001D600T2 CERAMIC CAP.
  • Page 42 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- 35 CC4702211T1 RESISTOR 36 CC5601211T6 RESISTOR 37 CJ001B600T2 MYLAR CAP. 38 CJ056D6JNT0 FILM CAP 39 CL4100056T0 PEAKING COIL 40 DA1C708V110 PCB 41 DC1100006T0 SPARK GAP 42 DC1510005T0 BEAD...
  • Page 43 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 456A6030001 PCBA DEF&POW/B 1 446A6030001 AIS DEF&POW/B 2 AB006210000 IC 3 AB024080002 IC 4 AB048560000 IC 5 AB078050300 IC 6 AB078120300 IC 7 AB081720007 IC 8 BB108570001 TRANSISTOR...
  • Page 44 ==================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- 41 CL370000201 CHOKE COIL 42 CL370000309 CHOKE COIL 43 DC020129400 HOUSING CONN. SET 44 DC020136000 HOUSING CONN. SET 45 DC020136100 HOUSING CONN.
  • Page 45 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 446A6030001 AIS DEF&POW/B 1 BB1042300T4 TRANSISTOR 2 BB1073302T4 TRANSISTOR 3 BB30945P1T5 TRANSISTOR 4 BB3121300T9 TRANSISTOR 5 BB3162700T0 TRANSISTOR 6 BB3190608T4 TRANSISTOR 7 BB5094100T8 TRANSISTOR 8 BBX042000T9 TRANSISTOR...
  • Page 46 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- 34 CA033F601T6 CERAMIC CAP. 35 CA047E6K0T7 CERAMIC CAP. 36 CA082E6K0T0 CERAMIC CAP 37 CB0010642T9 CAPACITOR 38 CB0010648T2 CAPACITOR (N.P) 1U 50V +-20% 85C P5 39 CB0010A41T9 CAPACITOR 40 CB0100642T8 CAPACITOR 41 CB0100AM0T0 CAPACITOR...
  • Page 47 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- 74 CC1201111T2 RESISTOR 75 CC1201211T8 RESISTOR 76 CC1202111T7 RESISTOR 77 CC1202211T2 RESISTOR 78 CC1500491T3 RESISTOR (MOF) 79 CC1502011T0 RESISTOR 80 CC1502211T1 RESISTOR 81 CC1503011T4 RESISTOR 82 CC1800011T9 RESISTOR...
  • Page 48 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- 121 CC5102211T7 RESISTOR 1/8W 51K +-5% 122 CC5362125T0 RES MF 1/4W 53.6K +-1% 123 CC5600011T1 RESISTOR 1/2W 560 +-5% 124 CC5601111T1 RESISTOR 1/4W 5.6K +-5% 125 CC5601211T6 RESISTOR...
  • Page 49 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- * 150 XX0900T2143 JUMPER WIRE 151 XX0900T2151 JUMPER WIRE * 152 XX0900T2160 JUMPER WIRE 153 XX0900T2178 JUMPER WIRE 154 XX0900T2186 JUMPER WIRE 155 XX0900T2194 JUMPER WIRE SPECIFICATION...
  • Page 50 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # X62A6030001 PCBA POW/B 1 AB008170000 IC 2 AB038420404 IC 3 AB078050300 IC 4 BB20772Q505 TRANSISTOR 5 BB527610001 TRANSISTOR 6 BC1ER3040N3 DIODE 7 BC1F54024N0 DIODE 8 BC1GBU4J000 DIO...
  • Page 51 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # X61A6030001 AIS POW/B 1 AB0043102T0 IC 2 BB3004401T5 TRANSISTOR 3 BB30945P1T5 TRANSISTOR 4 BBX120300T1 TRANSISTOR 5 BC11N4148T8 DIODE 6 BC1ER1040T0 DIODE 7 BC1ER1071T0 DIODE 8 BC1ER2030T0 DIODE...
  • Page 52 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- 41 CC2702011T7 RESISTOR 42 CC3001211T6 RESISTOR 43 CC3002211T1 RESISTOR 44 CC3302491T1 RESISTOR (MOF) 45 CC4700011T1 RESISTOR 46 CC4701111T1 RESISTOR 47 CC4701211T7 RESISTOR 48 CC6800011T8 RESISTOR 49 CC8200491T8 RESISTOR (MOF)

  • Page 53: Appendix C: Display Unit Assembly

    APPENDIX C: DISPLAY UNIT ASSEMBLY...
  • Page 55 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # MC708G01001 MC708G CCE 1 GA020000100 PWR CORD 2 5224A530001 DIS CCE 3 62006530001 PACKING CCE 4 X66AD730001 MEC PACKING CCE QUANTITY REQUIRED SPECIFICATION ------------------ ------------------------...
  • Page 56 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 62006530001 PACKING CCE 1 EJ4C7080000 RATING NP 2 HB4C7080000 CARTON 3 HDCEC708100 USER'S MANUAL 4 HGC70800000 MODEL LABEL 5 HGTMM6A0104 LABEL 6 HGTMPRII118 STATIC LABEL 7 HK3TX17M009 PE BAG...

  • Page 57: Appendix D: Crt & Yoke Assembly

    APPENDIX D: CRT & YOKE ASSEMBLY...
  • Page 58 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 51A11230001 VIDEO ASSY 1 452A6030001 PCBA CRT/B 2 456A6030001 PCBA DEF&POW/B QUANTITY REQUIRED SPECIFICATION ------------------ ------------------------ MC708G UR+MPRII L-POWER VQ-730 MC708 VA-730 MC708 L-POWER LG End of Report...
  • Page 61 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 51A11330001 CRT&YOKE ASSY 1 AC500024520 CRT&YOKE 2 CL700002000 COIL SET 3 DC020145300 H-CON SET 4 KA000600ZZ0 LOCKING CABLE TIE SPECIFICATION MC708G UR+MPRII M41LFQ903X03 (LUP) LG...
  • Page 64 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # 5224A530001 DIS CCE 1 CLA7M100200 DEGAUSSING COIL 2 DC190030200 CB ASY 3 FAC70811000 BEZEL 4 KA000600ZZ0 LOCKING CABLE TIE 5 DC020116702 HOUSING CONN.
  • Page 65 ====================================================================================================================== C NO. PART NO. DESCRIPTION -------------- - ---- ----------- ------------------------ ------------------------------ --- --- --- --- --- ----- ----- ----- ----- ----- # X66AD730001 MEC PACKING CCE 1 FAC70812000 BACK COVER 2 FAV70015000 BASE ASSY 3 FHV79941000 SPONGE 4 FJC70813000 EPS FOAM(R) 5 FJC70814000 EPS FOAM(L) 6 MAB20085407 TAPING SCREW QUANTITY REQUIRED...

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