P75 P75 SERVICE MANUAL US Model Canadian Model UK Model AEP Model N. Hemisphere Model S. Hemisphere Model Australian Model Chassis No. SCC-L07E-A D-1H CHASSIS SPECIFICATIONS Picture tube 0.25 mm aperture grill pitch 17 inches measured diagonally 90-degree deflection Power Consumption Maximum Nominal Video image area (16" maximum viewing image) Approx. 329.5 x 243 mm (w/h) (13 x 9 5/8 inches) Deflection frequency Horizontal: 30 to 85 KHz Vertical: 50 to150 Hz AC input voltage / current Max.
If no video signal is input to the monitor, the "NO INPUT SIGNAL" message appears. After about 30 seconds, the Power Saving function automatically puts the monitor into active-off mode and the indicator lights up orange. Once the monitor detects horizontal and vertical sync signals, the monitor automatically resumes normal operation mode. NOTE: This monitor has three Power Saving modes.
P75 SAFETY CHECK-OUT (US Model only) After correcting the original service problem, perform the following safety checks before releasing the set to the customer: 1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges. 2. Check the interboard wiring to ensure that no wires are “pinched” or contact high-wattage resistors. 3.
P75 TABLE OF CONTENTS Section Title Page 1. GENERAL ................................................................................... 5 2. DISASSEMBLY 2-1. 2-2. 2-3. 2-4. Cabinet Removal ............................................................8 Service Position .............................................................. 8 A, D, H, S Board Removal............................................. 8 Picture Tube Removal ................................................... 9 3.
SECTION 1 GENERAL The instructions given here are partial abstracts from the Operating Instruction Manual. The page numbers shown reflect those of the Operating Instruction Manual. USB Connectors The base of the monitor has two Universal Serial Bus (USB) connectors. Use USB connector ❶ to connect the USB signal cable∗ to the computer. Use USB Connector ❷ to connect USB compatible plug and play devices such as a keyboard, mouse, or joystick if supported by your computer.
P75 On-Screen Display Settings The adjustments for screen settings are located in the on-screen display and can be viewed in one of five available languages. The on-screen Main Menu displays the following ten functions: Size and Position Adjusts width, height, and horizontal and vertical positions of the screen. Geometry Adjusts pincushion, pincushion balance, trapezoid, parallelogram, and tilt. Overscan Zooms in and enlarges a selected portion of the screen.
Display Resolutions Connector Pin Assignments The display resolutions listed below are the most commonly used modes and are set as factory defaults. The monitor automatically recognizes these preset modes when they are requested by a software program and will provide the user with a properly sized and centered display. Signal Cable Connector 5 4 10 15 3 KEY 14 2 8 13 1 7 12 6 11 Display Resolutions Preset Modes 1. VGA Compatible Resolutions 640 X 350 at 31.5 kHz/70 Hz 2.
P75 SECTION 2 DISASSEMBLY 2-2. SERVICE POSITION 2-1. CABINET REMOVAL 2 Two claws PUSH 3 Cabinet PUSH A board 1 3 D board 2 1 Two screws (BVTP 4 x 16) 2-3.
P75 8 Demagnetization coil 2-4. PICTURE TUBE REMOVAL 9 Two screws (BVTP 4 x 16) 7 Tension spring 6 A board 5 Neck assy 4 Deflection yoke 3 Four screws (Tapping screw 5) 10 Stand assy (D board) 2 Picture tube shield 1 Anode cap Cushion REMOVAL OF THE ANODE-CAP NOTE: Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon painted on the CRT, after removing the anode.
P75 SECTION 3 SAFETY RELATED ADJUSTMENT When replacing parts shown in the table below, the following operational checks must be performed as a safety precaution against X-ray emissions from the unit. D - BOARD b) HV Hold-Down Check 1) Using an external DC Power supply, apply the voltage shown below between cathode of D517 on " D " Board and GND, and confirm that the HV Hold-Down circuit works. (Raster disappears) Apply DC Voltage: 31.4 + 0.
P75 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 1-690-391-21 2 A-1500-819-A Interface Unit 3 3-702-691-01 Connector Attachment IBM AT Computer as a Jig To BUS CONNECTOR D-sub (9 Pin [female]) mini Din (8Pin) 4 Pin 4 Pin 4 Pin *The parts above ( 1 ~ 3 ) are necessary for DAS adjustment.
P75 3. 4. Receive White cross-hatch. Adjust HMC and VMC at six-pole magnet. Convergence Specification Horizontal and Vertical < 6 Pole Magnet> 2 A B B G 1 0.30mm 0.24mm 0.30mm 0.30mm A 2 G 1 5. 6. 7. Focus adjustment Adjust focus (V) and focus (H) for optimum focus. Receive R.B. cross-hatch. Adjust H.TILT by swinging the DY neck right and left. Adjust XCV with XCV core. XCV movement B R 8. Focus (V) Adjust V.TILT with TLV VR. TLV movement B R R B B R R B 9. Focus (H) FBT Adjust Y.
P75 5-2. CIRCUIT BOARDS LOCATION A H S D1 U1 D U2 5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS Note: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytic. • Indication of resistance, which does not have one for rating electrical power, is as follows. • When replacing parts shown in the table below, be sure to perform the safety related adjustment.
CN305 8P CN307 BLUE 2 GGND 3 GREEN 4 RGND 5 RED 6 GND 7 VD 8 5 BIN 22 GND +12V 19 8 17 10 18 G-IN G-OUT GIN G-OUT IC002 11 B-OUT 1 B-IN 4 B-OUT H CLAMP 12 & LEVEL 10 CN301 12 15 R-OSD OSD IC003 VSOUT 5 R-OSD 1P 3 1 4 2 R-BKG G-OSD 13 G-OUT IC004 B-OSD 3 B-BKG 15 12 OSD-BLK 1.
12 11 G3 4 3 B_OUT G_OUT 5 GND1 R_OUT 24 6 27 26 R104 C055 0.1 68 :CHIP 100V :CHIP 47 R111 :FPRD 47 2 1 C102 0.1 FB101 0 FB201 0 D204 HSS82 PROT D304 HSS82 PROT R_IN +5V S/H_G C204 0.1 25V 0.1 100V :PT 47 25V G_GND G_IN SYNC_CAP B_IN CLAMP B_OUT R_OSD B_GND VCC 100V :MPS D104 HSS82 PROT C013 47 16 13 D205 HSS82 PROT BLK G_OSD D105 HSS82 PROT D206 HSS82 PROT R043 D106 HSS82 PROT OSD.
CN901 4P WHT :S-MICRO 5V R903 KEY SCAN IIC CLK IIC DATA 5V-2 C929 1000p B:CHIP IIC CLK IIC DATA FOR TEST VSO VDD HSO HSI1 CSI VSS 4 13 ABL THERMAL 9 DATA CLK 5VDET IIC DDC 10k R954 VSS C909 1000 10V H-SYNC C908 0.01 B:CHIP D914 1SS119 C931 470p :CHIP R730 33 1W R925 4.7k :CHIP 5 V-SYNC H-SYNC CENT HV FLY 3 12V C546 220p :CH 4 3 10 3 3 R628 270k :RN R627 0.
1VR9101 10K CN9101 FB9101 5MM 2 1VR9102 10K 3 1 5V 2 CONT 3 BRIGHT 4 GND TO FB9102 5MM CN9901 FB9103 5MM 2 (CONT/BRITE D-BOARD CNTL) B-#SV9055-H..
(PWR SWITCH AND LED) CN9201 3P 3 RED 2 GREEN 1 GND TO D9201 D-BOARD CN904 D9202 1 AC LIVE IN CN6601 1P TO D-BOARD CN603 S901 1 AC LIVE CN6602 1P B-#SV9055-S..
CN1301 TO USB PNP CN1302 5V 1 1 5V DMO 2 2 DMO DPO 3 3 DPO GND 4 4 TO DEVICES U2-BOARD CN1303 5 (USB1) B-#SV9055-U1..
CN1303 TO U1-BOARD CN1302 CN1304 5V 1 1 5V DM1 2 2 DM1 DPO 3 3 DP1 4 4 GND DP GND GND 5 (USB2) B-#SV9055-U2..
P75 Note: Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. Les composants identifies per un trame et SECTION 6 une marque ¡ sont critiques pout la EXPLODED VIEWS securite. Ne les remplacer que par une piece • portant le numero Note: Note: specifie.
P75 Note: SECTION 6 EXPLODED VIEWS Note: 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 marque ¡ sont critiques pout la securite. Ne les remplacer que par une piece portant le numero specifie.
P75 Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. 6-3. PACKING MATERIALS REF.NO. Note: PART NO. DESCRIPTION Les composants identifies per un trame et une marque ¡ sont critiques pout la securite. Ne les remplacer que par une piece portant le numero specifie. REMARK REF.NO. PART NO. DESCRIPTION 53 52 54 55 56 REF.NO. PART NO.
P75 A Note: SECTION 7 Note: ELECTRICAL PARTS LIST The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. Note: The components Identified REF.NO. PART NO. DESCRIPTIONby shading and mark ¡ a re critical for safety. Replace only with part number specified. The components identified by [ in this manual have been carefully factory-selected for each set in order to satisfy regulations REF.NO. regarding PART NO. XREMARK ray radiation.
P75 Note: REF.NO. The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. PART NO. DESCRIPTION DIODE D001 D003 D014 D101 D104 8-719-109-89 8-719-109-89 8-719-911-19 8-719-800-76 8-719-970-83 DIODE RD5.6ESB2 DIODE RD5.
P75 AD Note: Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. DESCRIPTION REF.NO. REF.NO. PART NO. REMARK R043 R045 R046 R047 R048 1-216-295-91 1-216-057-00 1-216-097-91 1-216-073-00 1-211-885-21 SHORT RES,CHIP RES,CHIP RES,CHIP METAL 0 2.2K 100K 10K 2.
P75 Note: Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK C518 C519 C520 C521 C522 1-117-954-11 1-136-538-11 1-164-232-11 1-107-444-11 1-136-481-11 FILM FILM CERAMIC CHIP CERAMIC MYLAR 4300PF 0.001MF 0.01MF 100PF 0.0022MF 3% 3% 10% 5% 10% C523 C524 C525 C526 C527 1-115-511-11 1-107-955-11 1-119-860-11 1-164-646-11 1-117-879-91 FILM ELECT FILM CERAMIC CAPACITOR 0.12MF 100MF 0.
P75 D Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK C704 C705 C706 C707 C708 1-163-259-91 1-130-495-00 1-102-973-00 1-102-973-00 1-130-495-00 CERAMIC CHIP FILM CERAMIC CERAMIC FILM 220PF 0.1MF 100PF 100PF 0.1MF 5% 5% 5% 5% 5% 50V 50V 50V 50V 50V C709 C710 C711 C712 C713 1-126-941-11 1-126-941-11 1-130-495-00 1-130-495-00 1-126-927-11 ELECT ELECT FILM FILM ELECT 470MF 470MF 0.1MF 0.
P75 Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. REF.NO. PART NO.
P75 D REF.NO. PART NO. IC900 IC901 IC902 IC904 IC905 8-759-525-10 8-759-529-90 8-759-537-27 8-759-165-81 8-759-370-34 Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. DESCRIPTION REMARK Note: Les composants identifies per un trame et une marque ¡ sont critiques pout la securite. Ne les remplacer que par une piece portant le numero specifie. REF.NO. PART NO.
P75 Note: Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. DESCRIPTION REMARK D Les composants identifies per un trame et une marque ¡ sont critiques pout la securite. Ne les remplacer que par une piece portant le numero specifie. REF.NO. PART NO. R406 R407 R408 R409 R410 1-216-677-11 1-249-421-11 1-216-073-00 1-216-671-11 1-215-447-00 METAL CHIP CARBON RES,CHIP METAL CHIP METAL 12K 2.2K 10K 6.8K 12K 0.50% 5% 5% 0.
P75 D REF.NO. PART NO. Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. DESCRIPTION REMARK Note: REF.NO. PART NO. Les composants identifies per un trame et une marque ¡ sont critiques pout la securite. Ne les remplacer que par une piece portant le numero specifie.
P75 Note: Note: The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION R958 R959 R961 1-216-017-91 RES,CHIP 1-216-061-00 RES,CHIP 1-216-025-91 RES,CHIP REMARK 47 3.3K 100 5% 5% 5% Les composants identifies per un trame et une marque ¡ sont critiques pout la securite. Ne les remplacer que par une piece portant le numero specifie. REF.NO. 1/10W 1/10W 1/10W PART NO.
P75 Note: U2 REF.NO. PART NO. The components Identified by shading and mark ¡ are critical for safety. Replace only with part number specified. DESCRIPTION REF.NO.