Compaq P700 Service Manual
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Compaq P700 Service Manual

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SERVICE MANUAL

Picture tube
0.24-0.25 mm aperture grill pitch
17 inches measured diagonally
90-degree deflection
Video image area
(16" maximum viewing image)
Approx. 327 X 243 mm (w/h)
7/8
(12
x 9
Resolution
Horizontal: Max. 1600 dots
Vertical: Max. 1200 lines
Standard image area
Approx. 312 x 234 mm (w/h)
(12
1/4
x 9
Input signal
Video
Analog RGB (75 ohms typical)
0.7 Vp-p, ±5%, Positive
Sync
Separate HD/VD,
TTL Polarity Free
External Composite,
TTL Polarity Free (2K ohms impedance)
Sync on Green
SPECIFICATIONS
5/8
inches)
1/4
inches)
TRINITRON COLOR MONITOR
Canadian Model
D99
Power Consumption
Maximum
Nominal
Deflection frequency
AC input voltage / current
Dimensions
Mass
Design and specifications are subject to change without notice.
P700
P700
US Model
Chassis No. SCC-L29P-A
CHASSIS
130 W
95 W
Horizontal: 30 to 92 KHz
Vertical: 48 to 120 Hz
100 to 120 V, 50/60 Hz, 1.7A
220 to 240V, 50/60Hz, 0.9A
404 x 428 x 424 mm (w/h/d)
9/10
7/8
7/10
(15
x 16
x 16
inches)
Approx. 19.2 kg (42 lb 11 oz.)

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Summary of Contents for Compaq P700

  • Page 1: Service Manual

    P700 SERVICE MANUAL P700 US Model Canadian Model Chassis No. SCC-L29P-A CHASSIS SPECIFICATIONS Picture tube 0.24-0.25 mm aperture grill pitch Power Consumption 17 inches measured diagonally Maximum 130 W 90-degree deflection Nominal 95 W Video image area (16" maximum viewing image)

  • Page 2: Power Management

    P700 POWER MANAGEMENT The power saving mode complies with the VESA Display Power Management Signaling standard. Each state of power management shall be activated by the host computer terminating the appropriate sync signals. Blanking the video must precede termination of the sync signals. The elapsed time counter shall also be controlled by the host computer.

  • Page 3: Table Of Contents

    P700 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.

  • Page 4: Safety Check Out Instructions

    P700 SAFETY CHECK-OUT After correcting the original service problem, perform the Leakage Test following safety checks before releasing the set to the The AC leakage from any exposed metal part to earth ground customer: and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500...
  • Page 5 P700 — 5 —...
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  • Page 10: Disassembly

    P700 SECTION 2 DISASSEMBLY 2-1. CABINET REMOVAL 2-2. SERVICE POSITION Two claws PUSH Cabinet A board PUSH D board 1 When the D-board is Two screws placed in service (BVTP 4 x 16) position, the Safety Earth Wire (green and yellow wire) is disconnected.

  • Page 11: Picture Tube Removal

    P700 2-4. PICTURE TUBE REMOVAL Demagnetization coil Two screws (BVTP 4 x 16) Tension spring A board Neck ass'y Deflection yoke Four screws (Tapping screw 5) Picture tube shield Stand ass'y (D board) Anode cap Cushion ANODE CAP REMOVAL WARNING: 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.

  • Page 12: Safety Related Adjustments

    P700 SECTION 3 SAFETY RELATED ADJUSTMENTS When replacing parts shown in the table below, the 8) After adjusting the High Voltage within specification, following operational checks must be performed as a put the RV cover on RV501 as shown below and apply sufficient amount of RTV around RV501.

  • Page 13: Adjustments

    P700 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. 1-690-391-21 A-1500-819-A 3-702-691-01 Interface Unit Connector Attachment IBM AT Computer To BUS CONNECTOR...
  • Page 14 P700 3. Change "CONV_OFF_NDX" to "7". 14. Adjust V.TILT with TLV VR. 4. Display crosshatch pattern with red and blue lines and TLV Movement black field. 5. Adjust H.STAT and V.STAT with 4 pole magnet. Use 4 pole magnet, not "HSTAT" and "VSTAT".
  • Page 15 P700 Vertical Convergence 4-7. Digital Convergence Adjustment Convergence (Low) Mode 1. Adjust the H.STAT and V.STAT with "HSTAT" and "VSTAT". A. Horizontal Convergence YBH-T-LO CBH-T-L-LO CBH-T-R-LO MBH-T-L-LO MBH-T-R-LO APH-L-LO APH-R-LO Adjust each misconvergence point in sequence. HSTAT MBH-B-R-LO MBH-B-L-LO 2. Repeat the procedure of A and B so that the conver- gence of the entire screen is within the specification.
  • Page 16 P700 NOTES: NOTES: — 16 —...
  • Page 17 P700 NOTES: NOTES: — 17 —...
  • Page 18 P700 NOTES: NOTES: — 18 —...

  • Page 19: Diagrams

    P700 SECTION 5 DIAGRAMS 5-1-1. BLOCK DIAGRAM (1/2) — 19 — — 20 — 19-22 FOLDOUT1.p65 8/30/99, 1:48 PM...

  • Page 20: Block Diagram (2/2)

    P700 5-1-2. BLOCK DIAGRAM (2/2) — 21 — — 22 — 19-22 FOLDOUT1.p65 8/30/99, 1:48 PM...

  • Page 21: Circuit Boards Location

    P700 [VIDEO] 5-2. CIRCUIT BOARDS LOCATION 5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS Note: • All capacitors are in µF unless otherwise noted. pF: µµF • When replacing parts shown in the table below, be sure 50 WV or less are not indicated except for electrolytic.

  • Page 22: A Board Schematic Diagram

    P700 A Board Schematic Diagram — 26 — — 25 — 23-26 FOLDOUT2.8.30.p65 8/31/99, 10:50 AM...
  • Page 23 P700 [DEFLECTION] — 27 — — 28 — 27-30 FOLDOUT3.8.30.p65 8/31/99, 12:29 PM...
  • Page 24 P700 D BOARD D - a Board Schematic Diagram D BOARD WAVEFORMS SEMICONDUCTOR LOCATION DIODES D619 IC503 D401 H-10 D620 IC601 A-10 4.50 Vp-p (H) 3.094 Vp-p (H) 5.219 Vp-p (H) D402 G-12 D621 F-12 IC602 D403 I-12 D622 IC603...
  • Page 25 P700 D - b Board Schematic Diagram — 31 — — 32 — 31-36 FOLDOUT 4.8.30.p65 8/31/99, 11:14 AM...
  • Page 26 P700 D - c Board Schematic Diagram — 33 — — 34 — 31-36 FOLDOUT 4.8.30.p65 8/31/99, 11:14 AM...

  • Page 27: D Board - Schematic Diagram

    P700 D - d Board Schematic Diagram — 35 — — 36 — 31-36 FOLDOUT 4.8.30.p65 8/31/99, 11:14 AM...

  • Page 28: Semiconductors

    4-063-224-01 SPRING, COMPRESSION 1-419-092-12 COIL, DEGAUSSING 4-071-882-02 BUTTON, POWER 4-045-123-01 HOLDER, DEGAUSSING COIL CATHODE CATHODE ‘ 4-071-885-01 GUIDE, LIGHT 4-071-875-01 BADGE, COMPAQ ‘ 4-071-874-01 CABINET 4-071-883-02 BUTTON, MULTI 4-071-884-01 BUTTON, RESET 4-067-757-11 COVER, CONNECTOR 4-071-878-01 LABEL, INFORMATION 8-738-550-61 ITC ASSY (17TKB-R1)

  • Page 29: Packing Materials

    6-2. PACKING MATERIALS REF.NO. PART NO. DESCRIPTION REMARK 4-071-899-01 KIT, COMPAQ ACCESSORY 1-782-783-21 CORD SET, POWER * 4-071-893-02 CUSHION ASSY, UPPER 4-041-927-11 BAG, POLYETHYLENE 4-071-896-01 CUSHION ASSY, LOWER 4-071-892-02 CARTON, INDIVIDUAL 4-071-891-11 LABEL, COMPAQ CARTON —...
  • Page 30 P700 NOTES: NOTES: — 40 —...

  • Page 31: Electrical Parts List

    P700 SECTION 7 ELECTRICAL PARTS LIST • The components identified by in this manual have been carefully factory- Note: selected for each set in order to satisfy regulations regarding X-ray radiation. The components identified by shading Should replacement be required, replace and mark are critical for safety.
  • Page 32 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 33 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 34 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 35 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 36 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 37 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 38 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 39 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 40 P700 Note: Note: The components identified by in this manual have been The components identified by shading carefully factory-selected for each set in order to satisfy and mark are critical for safety. regulations regarding x-ray radiation. Should replacement Replace only with part number specified.
  • Page 41 P700 Note: Note: The components identified by shading and mark Les composants identifies per un trame et une marque critical for safety. Replace only with part number sont critiques pour la securite. Ne les remplacer specified. que par une piece portant le numero specifie.
  • Page 42 English 99IJ74019-1 Printed in U.S.A. 9-978-865-01 © 1999.9...

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