Dell P780 Service Manual
Dell P780 - 17" CRT Display Manual
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- Dell P780 | Service Manual - Page 1
SERVICE MANUAL P780 P780 Equator Model Japan Model N. Hemisphere Model S. Hemisphere Model Chassis No. L29K-A D99 CHASSIS SPECIFICATIONS Picture tube 0.24-0.25 mm aperture grill pitch 17 , TTL Polarity Free (2K ohms impedance) Power Consumption Deflection frequency AC input voltage / current - Dell P780 | Service Manual - Page 2
P780 POWER MANAGEMENT The power saving mode complies with the VESA Display Power Management Signaling standard. Each state of power Amber(0.5 second)/Off (0.5 second)/ Green (0.5 second)/Off (0.5 second) TIMING SPECIFICATION MODE Resolution (H x V) Dot Clock (MHz) HORIZONTAL Hor. Freq. (kHz) - Dell P780 | Service Manual - Page 3
P780 TABLE OF CONTENTS Section Title Page Safety Check Out Instructions 4 1. GENERAL 5 2. DISASSEMBLY 2-1. Cabinet Removal 10 2-2. Service Position 10 2-3. A and D Board Removal 10 2-4. Picture Tube Removal 11 3. SAFETY RELATED ADJUSTMENTS 12 4. ADJUSTMENTS 13 5. DIAGRAMS 5-1. - Dell P780 | Service Manual - Page 4
P780 SAFETY CHECK-OUT After correcting the original service problem 540A. Follow the manufacturers' instructions to use these instructions. 2. A battery-operated A) WARNING!! NEVER TURN ON THE POWER IN A CONDITION IN WHICH THE DEGAUSS ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES WHENEVER - Dell P780 | Service Manual - Page 5
on and off. The indicator lights up green when the monitor is on, and lights up green and orange when the monitor is in Power Saving mode. 6 AC IN connector This connector provides AC power to the monitor. 7 Video input connector (HD15) (page 5) This connector inputs RGB video signals and SYNC - Dell P780 | Service Manual - Page 6
P780 - 6 - Customizing Your Monitor The OSD (On-screen Display) System Introducing the OSD System You can adjust most of the monitor a specific item. 4 Adjust the monitor setting 4 5 6 7 Resolution for current input signal to adjust the color temperature manually. COLOR 9300K 5000K 26 This - Dell P780 | Service Manual - Page 7
HELP information. HELP RETURN TO MAIN MENU RECOMMENDED RESOLUTION FLICKER THIN HORIZONTAL LINE DISTORTED SHAPE OUT OF FOCUS DISCOLORATION Customizing Your Monitor Resetting the adjustments Resetting a specific adjustment Navigate through the on-screen menus to select the adjustment item you want - Dell P780 | Service Manual - Page 8
SETTING INFORMATION MONITOR IS IN POWER SAVE MODE ACTIVATE USING PC INFORMATION MONITOR IS WORKING CHECK SIGNAL CABLE WHITE RED GREEN BLUE Troubleshooting If the problem is caused by the connected computer or other equipment, please refer to the connected equipment's instruction manual. Symptom - Dell P780 | Service Manual - Page 9
• Loud hum when turning on is normal • Turn monitor off and clean the screen • Do not perform any troubleshooting steps • Monitor needs to be replaced • Ensure monitor is in proper video mode • Perform monitor reset • Perform monitor self test feature check POSSIBLE SOLUTIONS These damper wires - Dell P780 | Service Manual - Page 10
P780 SECTION 2 DISASSEMBLY 2-1. CABINET REMOVAL Two claws Cabinet PUSH PUSH 2-2. SERVICE POSITION A board D board Two screws (BVTP 4 x 16) 2-3. A and D BOARD REMOVAL A board D board Chassis base Five screws (BVTP 3 x 12) One screw (BVTT 4 x 8) Cable stopper 1 When the D- - Dell P780 | Service Manual - Page 11
P780 2-4. PICTURE TUBE REMOVAL WARNING: BEFORE REMOVING THE ANODE CAP 8 Demagnetization coil High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove the anode cap. Short between anode and CRT coated earth ground - Dell P780 | Service Manual - Page 12
P780 80 kHz) 2) CONT maximum and BRT center 3) Cut off Screen VR (G2). 4) Input voltage: 120 ± 2 VAC shown above (26.9 KV ± 0.4 KV) is within specification. If not, set H. SIZE data at minimum (-127) than 27.5 VDC. 2) Using an external DC Power supply, apply the voltage shown below between cathode of - Dell P780 | Service Manual - Page 13
P780 SECTION 4 ADJUSTMENTS Connect the communication cable of the connector located on the D board on the monitor. Run the service software and then follow the instructions. IBM AT Computer as a Jig 1 1-690-391-21 2 A-1500-819-A Interface Unit 3 3-702-691-01 Connector Attachment To BUS CONNECTOR - Dell P780 | Service Manual - Page 14
P780 4. Display crosshatch , repeat steps 3-14 to make the optimum condition for the entire screen. 16. Fix 4-pole magnet, 6-pole magnet and XCV VR with 13. Adjust YCH with YCH VR. YCH movement 4-5. Vertical and Horizontal Position and Size Specification B b a a A b fH > 60kHz a = 2.0 mm b = 2.0 - Dell P780 | Service Manual - Page 15
P780 4-7. Digital Convergence Adjustment Convergence (Low) Mode 1. Adjust the H.STAT and V.STAT with "HSTAT" and "VSTAT". A. Horizontal Convergence CBH-T-L-LO 9 MBH-T-L-LO 17 that the convergence of the entire screen is within the specification. Convergence (High) Mode 1. Adjust the H.STAT and - Dell P780 | Service Manual - Page 16
P780 NOTES: - 16 - - Dell P780 | Service Manual - Page 17
P780 NOTES: - 17 - - Dell P780 | Service Manual - Page 18
P780 NOTES: - 18 - - Dell P780 | Service Manual - Page 19
5-1. BLOCK DIAGRAM SECTION 5 DIAGRAMS FOLDOUT 1 1 - 19 - P780 - 20 - 5-2. CIRCUIT BOARDS LOCATION 8/6/99, 8:44 AM - 21 Indication of resistance, which does not have one for rating electrical power, is as follows. Pitch: 5 mm Rating electrical power 1/4 W (CHIP: 1/10 W) • All resistors - Dell P780 | Service Manual - Page 20
P780 A BOARD SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 A B C D E F G H I J K L Schematic diagrams Block diagram A board FOLDOUT 2 2 - 23 - A BOARD TRANSISTOR VOLTAGE LIST B C E Q001 11.4 505 10.9 Q006 0.3 3.6 GND All voltages - Dell P780 | Service Manual - Page 21
8 2.5 GND GND 14 5.8 9 2.8 IC608 15 5.2 10 NC pin volt 16 11.3 11 GND IN 11.9 17 11.9 12 N C OUT 5.0 18 6.8 13 0.9 GND GND 19 8.0 14 6.1 IC701 20 6.1 IC602 pin volt GND 5.0 GND Q520 88.9 176.0 179.0 Q602 131.8 2.4 0.1 All voltages are in V P780 - 30 - - Dell P780 | Service Manual - Page 22
P780 D [ POWER, CONVERGENCE ] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 A stocked because they are seldom required for routine service. • The component parts of an assembly , POWER 4 4-072-194-01 GUIDE, LED 5 4-072-238-01 BUTTON, MULTI 16 * 4-047-316-01 SPRING, EXTENSION 17 - Dell P780 | Service Manual - Page 23
NO. DESCRIPTION REMARK 52 51 54 REF.NO. PART NO. DESCRIPTION 53 P780 REMARK 55 56 57 REF.NO. PART NO. DESCRIPTION REMARK 51 * 3-867-224-11 MANUAL, INSTRUCTION 52 * 3-867-225-11 MANUAL, CD-ROM 53 ! 1-783-795-11 CORD SET, POWER (JAPAN ONLY) 54 * 4-072-182-01 CUSHION ASSY, UPPER 55 * 4-041-927 - Dell P780 | Service Manual - Page 24
P780 NOTES: - 36 - - Dell P780 | Service Manual - Page 25
P780 Note: The SECTION 7 ELECTRICAL PARTS LIST The components identified by in this manual have been carefully factoryselected for each set in order to satisfy * " are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. A • - Dell P780 | Service Manual - Page 26
P780 A REF.NO. PART NO. D007 8-719-109-89 D008 8-719-109-89 D014 8-719-991-33 D015 8-719-991-33 D104 8-719-970-83 DESCRIPTION - Dell P780 | Service Manual - Page 27
P780 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. Les composants identifies per un trame et une - Dell P780 | Service Manual - Page 28
P780 D The components identified by shading and mark ! are critical for safety. Replace only with part number specified. Les composants identifies per un trame et une - Dell P780 | Service Manual - Page 29
P780 The components identified by shading and mark ! are critical for safety. Replace only HSS82 DIODE RGP02-20EL-6394 D516 D517 ! D518 D519 D520 8-719-052-86 8-759-157-40 8-719-110-17 8-719-991-33 8-719-018-82 DIODE D2L40-TA DIODE HZT33-02TE DIODE RD10ESB2 DIODE 1SS133T-77 DIODE RGP02-20EL - Dell P780 | Service Manual - Page 30
P780 D REF.NO. PART NO. D911 8-719-988-61 D912 8-719-075-53 D913 8-719-988-61 D914 8-719-988-61 D915 8-719-988-61 DESCRIPTION DIODE 1SS355TE-17 DIODE SML16751WN DIODE 1SS355TE-17 DIODE 1SS355TE-17 DIODE 1SS355TE-17 D916 8-719-988-61 DIODE 1SS355TE-17 D917 8-719-988-61 DIODE 1SS355TE-17 D918 8-719 - Dell P780 | Service Manual - Page 31
pour la securite. Ne les remplacer que par une piece portant le numero specifie. P780 D REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION -HFE Q506 8-729-119-76 TRANSISTOR 2SA1175-HFE Q507 8-729-049-17 TRANSISTOR 2SC5302-SONY-CC Q508 8-729-119-78 TRANSISTOR 2SC2785-HFE Q510 - Dell P780 | Service Manual - Page 32
P780 D The components identified by shading and mark ! are critical for safety. Replace only with part number specified. Les composants identifies per un trame et une - Dell P780 | Service Manual - Page 33
be required, replace only with the value originally used. P780 D REF.NO. PART NO. R730 1-216-421-11 R731 POWER (JAPAN ONLY) CABLE ASSY (15P DSUB) 5% 1/10W 5% 1/10W 5% 1/10W 5% 1/10W 3-704-372-01 * 3-867-224-11 * 3-867-225-11 4-045-123-01 ! 8-738-550-61 HOLDER, HV CABLE MANUAL, INSTRUCTION MANUAL - Dell P780 | Service Manual - Page 34
NOTES: - 46 - - Dell P780 | Service Manual - Page 35
- Dell P780 | Service Manual - Page 36
9-978-857-01 English 99HT74018-1 Printed in U.S.A. © 1999.08 - Dell P780 | Service Manual - Page 37
SERVICE MANUAL P780 P780 Equator Model Japan Model N. Hemisphere Model S. Hemishere Model Chassis No. SCC-L29K-A D99 CHASSIS SUPPLEMENT - 1 For Bridge and D Board Schematics and Updated Exploded View and Electrical Parts List. File this supplement with the original service manual. COLOR MONITOR - Dell P780 | Service Manual - Page 38
A BOARD SCHEMATIC DIAGRAM (Complete) P780 - 2 - - Dell P780 | Service Manual - Page 39
P780 A BOARD SCHEMATIC DIAGRAM (1 of 3) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | | | | | | | | | | | | | | | | | | | | A A | | B B | | C C | | D D | | E E | | F F | | G G | | H H | | I I | | J J | | K K | | L L | | M M | - Dell P780 | Service Manual - Page 40
P780 A BOARD SCHEMATIC DIAGRAM (2 of 3) 18 19 | | | A 20 21 22 23 | | | | 24 25 26 27 | | | | 28 29 30 | | | 31 32 33 34 | | | | | 35 | A B | | B C | | C D | | D E | | E F | | F G | | G H | | H I | | I J | | J K | | K L | | L M - Dell P780 | Service Manual - Page 41
P780 A BOARD SCHEMATIC DIAGRAM (3 of 3) 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | | | | | | | | | | | | | | | | | | A | 2.6 16 11.9 27 2.3 5 49.7 2 1.1 12 0 5 4.8 3 NC 3 0 6 3.2 17 0 28 3.3 6 78.7 3 1.1 13 0 6 NC 4 GND 4 0.5 7 2.0 18 0.9 29 - Dell P780 | Service Manual - Page 42
P780 A [ VIDEO ] 1 2 3 4 5 6 7 A B C D E FB019 R020 C042 C043 C026 R004 1 JR018 L009 JR016 R014 C130 C003 9 15 C092 CN314 12 FL002 C090 7 C230 1 C012 C304 R119 C004 L007 R018 17 FB016 JR002 R027 R062 R052 1 7 C005 JR005 R117 R217 IC001 30 R030 R317 C312 1 R204 10 R104 - Dell P780 | Service Manual - Page 43
D BOARD SCHEMATIC DIAGRAM P780 - 7- - Dell P780 | Service Manual - Page 44
P780 D BOARD SCHEMATIC DIAGRAM (1 of 3) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | | | | | | | | | | | | | | | | | | | | A A | | B B | | C C | | D D | | E E | | F F | | G G | | H H | | I I | | J J | | K K | | L L | | M M | - Dell P780 | Service Manual - Page 45
P780 D BOARD SCHEMATIC DIAGRAM (2 of 3) 18 19 | | | A 20 21 22 23 | | | | 24 25 26 27 | | | | 28 29 30 | | | 31 32 33 34 | | | | | 35 | A B | | B C | | C D | | D E | | E F | | F G | | G H | | H I | | I J | | J K | | K L | | L M - Dell P780 | Service Manual - Page 46
D BOARD WAVEFORMS 1 2 45 46 47 | | | 3 48 49 50 51 | | | | | | P780 52 | A B C | | C 5.1 Vp-p (H) 3.5 Vp-p (H) 5.5 Vp-p (H) 4 5 6 D pin volt 16 11.3 11 GND IN 11.9 IC703 25 0 4 4.6 1 GND T | 17 11.9 12 NC OUT 5.0 pin volt 26 0 5 GND 2 GND | T 18 6.8 13 - Dell P780 | Service Manual - Page 47
D [ POWER, CONVERGENCE ] 1 2 3 4 5 6 7 8 9 10 R548 C539 C532 R541 C540 R540 RV501 - 11 - P780 13 D BOARD SEMICONDUCTOR LOCATION DIODE D516 K-9 D607 C-9 D509 J-5 D529 M-14 D618 F-10 D913 D510 H-17 D601 E-14 D619 F-8 D914 D511 H-6 D602 F-17 D620 B-9 D915 D512 K-6 D603 F-7 D621 F-12 - Dell P780 | Service Manual - Page 48
4 5* X-4038-361-1 3-653-339-01 4-072-192-11 4-072-194-01 4-072-238-11 BEZEL ASSY (2-5) SPRING, COMPRESSION BUTTON, POWER GUIDE, LIGHT BUTTON, MULTI REF. NO. PART NO. DESCRIPTION REMARK 16 * 17 18 19 * 20 * 4-047-316-01 1-419-255-12 4-045-123-01 4-062-195-61 4-072-196-21 SPRING, EXTENSION - Dell P780 | Service Manual - Page 49
* 56 * 57 * 3-867-224-12 1-772-448-31 1-769-752-61 4-072-182-02 4-059-174-11 4-072-185-02 4-072-189-03 QUICK SETUP (MANUAL) CD-ROM POWER CORD SET (Japan model only) CUSHION ASSY, UPPER BAG, PROTECTION CUSHION ASSY, LOWER CARTON, INDIVIDUAL - Dell P780 | Service Manual - Page 50
P780 Note: The components identified by shading and mark are critical for safety. Replace only with part number specified. SECTION 7 ELECTRICAL PARTS LIST The components identified by in this manual since they are seldom required for routine service. Some delay should be anticipated when ordering - Dell P780 | Service Manual - Page 51
: Les composants identifies per un trame et une marque sont critiques pour la securite. Ne les remplacer que par une piece portant le numero specifie. P780 REF.NO. PART NO. DESCRIPTION DIODE REMARK D001 8-719-970-02 D002 8-719-911-19 D003 8-719-911-19 DIODE 1SR139-400T31 DIODE 1SS119-25TD - Dell P780 | Service Manual - Page 52
: Les composants identifies per un trame et une marque sont critiques pour la securite. Ne les remplacer que par une piece portant le numero specifie. P780 REF.NO. PART NO. DESCRIPTION RESISTOR REMARK R002 1-216-043-91 RES-CHIP 560 R003 1-216-071-00 RES-CHIP 8.2K R004 1-216-055-00 - Dell P780 | Service Manual - Page 53
securite. Ne les remplacer que par une piece portant le numero specifie. P780 REF.NO. PART NO. DESCRIPTION REMARK 8-933-445-00 8-933-380 33µF 20% 0.047µF 5% 2200pF 10% 100V C577 250V C578 200V C579 400V C580 500V - 17 - 1-115-349-51 1-107-974-11 1-109-879-11 1-137-150-11 MYLAR 0.01µF - Dell P780 | Service Manual - Page 54
: Les composants identifies per un trame et une marque sont critiques pour la securite. Ne les remplacer que par une piece portant le numero specifie. P780 REF.NO. PART NO. DESCRIPTION REMARK C582 1-163-037-11 CERAMIC CHIP 0.022µF 10% 50V C583 1-130-495-00 C601 1-104-664-11 C602 1-162 - Dell P780 | Service Manual - Page 55
-17 D926 8-719-988-61 D927 8-719-988-61 D928 8-719-047-98 D929 8-719-047-98 D930 8-719-047-98 DIODE 1SS355TE-17 DIODE 1SS355TE-17 DIODE HZU5.6B2TRF DIODE HZU5.6B2TRF DIODE HZU5.6B2TRF D931 D932 - 19 - 8-719-109-89 8-719-109-89 DIODE MTZJ-T-77-5.6B DIODE MTZJ-T-77-5.6B P780 - Dell P780 | Service Manual - Page 56
FA IC LA6500-FA IC TEA1504/N2 IC BA00AST-V5 IC603 IC604 IC605 IC607 IC608 8-749-016-35 8-759-586-17 8-759-637-83 8-759-450-47 8-759-231-53 IC TLP621D4-Y-LF2T IC TL1431CZ-AP IC PQ12RD8S IC BA05T INDUCTOR INDUCTOR 100µH 100µH 100µH FILTER LF602 1-429-180-11 TRANSFORMER, LINE FILTER - 20 - P780 - Dell P780 | Service Manual - Page 57
la securite. Ne les remplacer que par une piece portant le numero specifie. P780 REF.NO. PART NO. DESCRIPTION TRANSISTOR REMARK Q501 8-729-120-28 Q502 89 Q505 8-729-119-76 Q506 8-729-119-76 Q507 8-729-049-17 Q508 8-729-119-78 TRANSISTOR 2SC2412K-T-146-QR TRANSISTOR 2SA1037AK-T146-QR TRANSISTOR - Dell P780 | Service Manual - Page 58
: Les composants identifies per un trame et une marque sont critiques pour la securite. Ne les remplacer que par une piece portant le numero specifie. P780 REF.NO. PART NO. DESCRIPTION R556 1-216-691-11 R557 1-216-079-00 R558 1-216-671-11 R559 1-216-661-11 METAL CHIP RES-CHIP - Dell P780 | Service Manual - Page 59
part number specified. Note: The components identified by in this manual have been carefully factory-selected for each set in order ray radiation. Should replacement be required, replace only with the value originally used. P780 REF.NO. PART NO. DESCRIPTION REMARK R712 1-215-860-11 R713 1-216- - Dell P780 | Service Manual - Page 60
1-801-073-31 VARISTOR TNR14V471K660 VA603 1-137-479-11 MYLAR 1µF 10% 400V CRYSTAL X901 1-767-641-11 VIBRATOR, CRYSTAL X902 1-767-933-11 OSCILLATOR, CERAMIC P780 REMARK - 24 - - Dell P780 | Service Manual - Page 61
P780 9-978-857-81 Sony Corporation Sony Technology Center Technical Services Service Promotion Dept. - 25 - English 2000GJ74036-1 Printed in USA 2000.7
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SPECIFICATIONS
D99
CHASSIS
SERVICE MANUAL
P780
P780
Equator Model
Japan
Model
N. Hemisphere Model
S. Hemisphere Model
Chassis No. L29K-A
COLOR
MONITOR
Picture tube
Video image area
Resolution
Standard image area
Input signal
Video
Sync
0.24-0.25 mm aperture grill pitch
17 inches measured diagonally
90-degree deflection
(16" maximum viewing image)
Approx. 326 X 243 mm (w/h)
(12
7/8
x 9
5/8
inches)
Horizontal: Max. 1280 dots
Vertical: Max. 1024 lines
Approx. 312 x 234 mm (w/h)
(12
1/4
x 9
1/4
inches)
Analog RGB
(75 ohms typical)
0.7 Vp-p,
±
5%, Positive
Separate HD/VD,
TTL Polarity Free
External Composite,
TTL Polarity Free (2K ohms impedance)
Power Consumption
Deflection frequency
AC input voltage / current
Dimensions
Mass
Maximum
120W
Minimum
95W
Horizontal: 30 to 85 KHz
Vertical: 48 to 120 Hz
100 to 120 V, 50/60 Hz, 1.7A
220 to 240V, 50/60Hz, 0.9A
414 x 404 x 420mm (w/h/d)
(16
1/4
x 15
7/8
x 16
1/2
inches)
Approx. 18.8 kg (41 lbs. 8 oz.)
Design and specifications are subject to change without notice.