Compaq MV7540 Service Manual Download Page 45 | Manualshive

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HP MV7540

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Summary of Contents for MV7540

Page 1: ...PAIR 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 DISCLAI...

Page 2: ...9 4 2 Main Adjustments 9 4 3 Adjustment Method 9 5 Circuit Description 13 5 1 Micro Controller and Deflection Circuit 13 5 2 Transistor Diode Circuit 14 6 Trouble Shooting Chart 15 6 1 No Power 15 6...

Page 3: ...HP MV7540 3 Revision List Version Date Revision History TPV Model Name A00 Nov 06 2005 Initial Release S774BMAKCMO2 A01 Feb 13 2006 Update BOM S774BMCLCPO2P A02 Mar 06 2006 Update BOM S774BMCCCSO2...

Page 4: ...Back Porch s 1 907 1 589 3 810 2 222 3 232 2 702 2 235 2 201 2 296 H Active s 25 424 25 422 20 317 17 778 16 162 14 222 13 328 10 836 11 852 H Front Porch s 0 911 0 318 0 508 1 556 0 323 0 569 0 203...

Page 5: ...n 15 Pin D type Connector AC Power Cord 13 The rotation can t be recall in user mode 14 Press the MENU funtion and don t release it then press power swith on the monitor will enter the burn in mode if...

Page 6: ...ety test must be performed to verify that the display is safe to operate without danger or shock Always perform an AC leakage current check on the exposed metallic parts of the cabinet such as screw h...

Page 7: ...HV supply It is important to maintain specified values of all components in the horizontal and high voltage circuits and anywhere else in the monitor that could cause a rise in high voltage or operat...

Page 8: ...th screws on the connector to ensure firm grounding The connector information is as follow 15 Pin Color Display Signal Cable Pin No Description Pin No Description 1 RED 9 5V 2 GREEN 10 SYNC GND 3 BLUE...

Page 9: ...Adjustment Method 1 B HV voltage adjustment A Chroma 2000 Signal generator or PC equivalent set mode 1 VGA 640X480 pattern 1 0 B Connect a DC Volt meter between D925 cathode and ground then adjust VR9...

Page 10: ...COLOR TEMPERATURE FV FACTORY OSD VERTICAL LOCATION ADJUST D To switches the input signal to the other Timing Mode Please follow step A C to get the optimum picture H V size 312 234mm E Select the RET...

Page 11: ...24 768 85Hz full white field b Adjust function key AB to the luminance at 33 0 3FL D Cut off adjustment a Set mode 1024 768 85Hz Raster pattern b Adjust Brightness to make Y 0 06 FL then return from f...

Page 12: ...o tabs of the 4 pole magnets on the PCM assembly See above diagrams D Horizontal red and blue lines are converged by varying the two tabs together keeping the angle between them constant E Produce a w...

Page 13: ...le SMPS block and an extensive set of geometry control facilities Further the IC generates the drive waveforms for DC coupled vertical boosters to the TDA9302A Horizontal Oscillator The oscillator is...

Page 14: ...T Pulse IC901 Power IC for Switching Power Control Build in MOS FET Q907 Q908 Use for Power Saving to Cut off 6 3V Supply Voltage Q909 Q910 Use for Power Saving to Cut off 12 5V Supply Voltage Q912 Q9...

Page 15: ...in4 of IC901 is normal Replace IC901 Cut pin4 of IC901 and check the voltage if is normal Check the startup circuit and D911 Check 1 The feedback circuit of pin 5 of IC901 2 IC901 3 T901 No raster the...

Page 16: ...ircuit as Q904 D103 ZD902 Check the reset circuit Replace X101 Check the bus Replace IC102 2 No signal is normal but it is orange when there is signal input Check if H V sync inputs at pin41 pin42 of...

Page 17: ...the voltage of G1 is between 25 and 65V Check the voltage is at the normal range Check the voltage is about 0V Check the voltage is about 80v Press the menu key and look if the indicator is under cont...

Page 18: ...tage of filament is normal Check power saving circuit and 6 3Vpower supply Check the voltage of G2 is 200v Check the if tube socket and tube pin are good Adjust the G2 VR of FBT and look if the pictur...

Page 19: ...Check if the voltage is 11V The voltage is 0V The voltage is between 2V and 4 5V Check I2 C Cut pin26 and check if the voltage is 11V Check C413 C415 R425 D405 Q402 which breaks Q403 if they are bad...

Page 20: ...and cut base of Q406 then look if the picture becomes small Replace Q406 Replace D406 Check the voltages concerned with collector of Q406 as D406 D407 L405 C422 Cut pin24 of IC401 and check if the vol...

Page 21: ...HP MV7540 21 7 Mechanical Of Cabinet Front Dis Assembly...

Page 22: ...040C 581716 3A CARTON LABEL 2 000 PCS 040C2063716 8D ID LABEL 1 000 PCS 041C 6871623D DOC KIT 375738 374 1 000 PCS 041C 6871629A QSG 375685 B21 1 000 PCS 044C67C4 1 EPS CUSHION 1 000 PCS 044C67C4 2 EP...

Page 23: ...5 1A 2SB772 P 1 000 PCS PR901 061C 52 27 4J PTCR 1 000 PCS R927 061C 208333 64 MOFR 33K OHM 5 1W 1 000 PCS R914 061C 208680 64 MOFR 68 OHM 5 1W 1 000 PCS R907 061C 208681 64 MOFR 680 OHM 5 1W 1 000 PC...

Page 24: ...2 A FERRITE BEAD 3 5 1 5 2 000 PCS FB902 071C 55 21 FERRITE BEAD 10 6 0 0 8 1 000 PCS FB903 071C 55 21 FERRITE BEAD 10 6 0 0 8 1 000 PCS J036 071C 55 29 FERRITE BEAD 1 000 PCS FB907 071C 55503 FERRIT...

Page 25: ...RYSTAL 1 000 PCS XGND 095C 90 23 JUMPER 1 000 PCS IC101 056C1125577 A1 6148 KC421A0 175C 1 000 PCS IC102 056C1133 13 24LC08B PG 1 000 PCS IC901 056C 379504 STR G5643D 1 000 PCS 090C 339509 PA HEAT SIN...

Page 26: ...095C 90 23 JUMPER 1 000 PCS J070 095C 90 23 JUMPER 1 000 PCS J071 095C 90 23 JUMPER 1 000 PCS J072 095C 90 23 JUMPER 1 000 PCS J073 095C 90 23 JUMPER 1 000 PCS J074 095C 90 23 JUMPER 1 000 PCS J076 09...

Page 27: ...PCS J024 095C 90 23 JUMPER 1 000 PCS J023 095C 90 23 JUMPER 1 000 PCS J022 095C 90 23 JUMPER 1 000 PCS J021 095C 90 23 JUMPER 1 000 PCS J020 095C 90 23 JUMPER 1 000 PCS J019 095C 90 23 JUMPER 1 000 PC...

Page 28: ...000 PCS R749 061C 17210452T CFR100K OHM 5 1 4W 1 000 PCS R913 061C 17210452T CFR100K OHM 5 1 4W 1 000 PCS R904 061C 17212252T CFR 1 2K OHM 5 1 4W 1 000 PCS R402 061C 17212252T CFR 1 2K OHM 5 1 4W 1 00...

Page 29: ...M 1 6W 1 000 PCS R436 061C 21022252T MFR 2 2K OHM 1 1 6W 1 000 PCS R621 061C 21025352T MFR 25KOHM 1 1 6W 1 000 PCS J080 061C 21036352T 36KOHM 1 6W 1 000 PCS J035 061C 21036352T 36KOHM 1 6W 1 000 PCS R...

Page 30: ...000 PCS R107 061C 60230352T CFR 30K OHM 5 1 6W 1 000 PCS R902 061C 60239252T CFR 3 9K OHM 5 1 6W 1 000 PCS R182 061C 60239252T CFR 3 9K OHM 5 1 6W 1 000 PCS R125 061C 60247052T CFR 47 OHM 5 1 6W 1 000...

Page 31: ...PCS ZD903 093C 3953252T TZX24B 1 000 PCS ZD902 093C 396V1 V TZX6V2B 1 000 PCS D471 093C 5247P52T 1N4004 1 000 PCS D601 093C 5247P52T 1N4004 1 000 PCS D472 093C 5247P52T 1N4004 1 000 PCS D427 093C 524...

Page 32: ...000 PCS Q904 057C 446501 T 2SC2120 Y 1 000 PCS Q705 057C 498 1 T BF423 1 000 PCS Q402 057C 530503 T 2SD1207T 1 000 PCS Q742 057C 708 1 T 2SC4002E 1 000 PCS C946 063C212J1042AT MPE 0 1UF 250V 5 1 000...

Page 33: ...0PF 5 NPO 50V 1 000 PCS C412 065C 44215113T6213 150PF 5 NPO 50V 1 000 PCS C107 065C 44222013T 22PF 5 NPO 50V 1 000 PCS C108 065C 44222013T 22PF 5 NPO 50V 1 000 PCS C131 065C 44233013T 33PF 5 NPO 50V 1...

Page 34: ...FB803 053A 40 8 EMI FILTER 1 000 PCS FB802 053A 40 8 EMI FILTER 1 000 PCS IC801 056C 366515 LM1237BDKE 1 000 PCS IC803 056C 539 6 LM2480NA NOPB 1 000 PCS R879 061A212Y10152T 100 OHM 1 2W 1 000 PCS C8...

Page 35: ...MOHM 5 1 4W 1 000 PCS FB805 061C 17222152T CFR 220OHM 5 1 4W 1 000 PCS L803 061C 17247052T CFR 47 OHM 5 1 4W 1 000 PCS L802 061C 17247052T CFR 47 OHM 5 1 4W 1 000 PCS L801 061C 17247052T CFR 47 OHM 5...

Page 36: ...T BAV20 1 000 PCS D851 093C 6450152T SWITCHING DIODE BAV21 1 000 PCS D850 093C 6450152T SWITCHING DIODE BAV21 1 000 PCS D853 093C 6450152T SWITCHING DIODE BAV21 1 000 PCS D854 093C 6450152T SWITCHING...

Page 37: ...9 9T 1UF 20 100V 1 000 PCS C854 067C 70109 9T 1UF 20 100V 1 000 PCS C853 067C 70109 9T 1UF 20 100V 1 000 PCS C840 067C 70109 9T 1UF 20 100V 1 000 PCS C810 067C 305470 7T 47UF 20 50V 1 000 PCS C805 067...

Page 38: ...HP MV7540 38 9 Block Diagram...

Page 39: ...HP MV7540 39...

Page 40: ...HP MV7540 40 10 IC Block Diagram...

Page 41: ...HP MV7540 41...

Page 42: ...HP MV7540 42...

Page 43: ...HP MV7540 43...

Page 44: ...HP MV7540 44 11 PCB Layout...

Page 45: ...HP MV7540 45...

Page 46: ...HP MV7540 46 12 SCHEMATIC DIAGRA...

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