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Nokia 447PRO Service Manual

Chassis 447r 17" high resolution colour monitor.
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Nokia Display Products Oy
P .O.Box 14
FIN---24101 Salo, Finland
17" High Resolution Colour Monitor
447PRO
Level
Main Board module . . . . . .
CRT module . . . . . . . . . . . . .
When re--- ordering manuals, please quote the model name and part number.
Chassis 447R
1
2
SMA249C
SMA249E
SMH164C
SMH164C
Contents
Service
Monitor Dismantling
Part List
PCB Part List
PCB Layout pictures
ZB1660A
02.00

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Table of Contents

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   Summary of Contents for Nokia 447PRO

  • Page 1 Nokia Display Products Oy Chassis 447R P .O.Box 14 FIN---24101 Salo, Finland 17” High Resolution Colour Monitor 447PRO Contents Service Monitor Dismantling Part List PCB Part List PCB Layout pictures Level Main Board module ..
  • Page 2 447R...
  • Page 3: Table Of Contents

    Service Contents 1. Product Overview 1.1. Technical Specifications 1.2. Preset Display Modes 1.3. S---Capacitor and Linearity Control Table 1.4. Audio (Optional) 1.5. USB subsystem (Optional) 1.6. Monitor Connection 1.6.1. If your monitor is DDC compatible (PC) 1.6.2. If there is no DDC in your computer (PC) 1.7.
  • Page 4: Level

    7.4.1. The Most Sensitive Colour 7.4.2. Low Light 7.4.3. High Light 7.5. Maximum/Minimum Contrast 7.6. Focus 7.7. Convergence 7.7.1. Measuring Conditions 7.7.2. Convergence Measuring Gauge 7.7.3. Static Convergence 7.7.4. Dynamic Convergence 7.7.5. Allowed Error Levels for Convergence 7.8. Colour Purity 8.
  • Page 5: Product Overview

    1. Product Overview 447R is a 17 inch monitor. The maximum resolution of 1600 x 1200 makes the monitor suitable for PC, Macintosh and workstation applications in normally heated, ventialed and controlled office/home environment. The monitor has an own power supply with input voltage requirements from 90V to 264V.
  • Page 6: Preset Display Modes

    1.2. Preset Display Modes Right Border Left Border Full 0.7 V intensity Video Blanking H Blanking H Active Video H Back porch H Front Porch H Sync H Sync. Signal Bottom Border Upper Border Full 0.7 V intensity Video Blanking V Blanking V Active Video V Back Porch...
  • Page 7 Right Border Left Border Full 0.7 V intensity Video Blanking H Blanking H Active Video H Back porch H Front Porch H Sync H Sync. Signal Bottom Border Upper Border Full 0.7 V intensity Video Blanking V Blanking V Active Video V Back Porch V Front Porch V Sync...
  • Page 8: S---capacitor And Linearity Control Table

    1.3. S---Capacitor and Linearity Control Table Timings LIN1 LIN2 NCE642 NCE605 NCE700 NCE513 NCE603 NCE506 NCE40A NCE501 NCE406 NCE30A NCE401 NCE306 NCE200D NCE300 447R...
  • Page 9 1.4. Audio 1.4.1. Connectors Audio in L & R Input level at clipping 3.0 Vpp Mic line out Head phone 3.5 mm External mic 3.5 mm for electre condenser microphone 1.4.2. Amplifier Output power 2 * 3.0 W (RMS) to 16 τ load 1.4.3.
  • Page 10 1.5. USB Subsystem 1.5.1. General USB is standard serial bus for connecting peripherals to your PC. USB is the key to true Plug and Play capabilities of your PC. USB enables you to attach and detach new peripherals while your PC is running. You don’t have to wonder about which port of the PC you should use when plugging in a peripheral.
  • Page 11 1.5.2. Bus powered connections Low power: All power to these devices comes from USB connector. They may draw no more than one unit load (100 mA)at any time. High power: All power to these devices comes from USB connector. They must draw no more than one unit load upon power up and may draw up to five unit loads after being configured.
  • Page 12: Monitor Connection

    1.6. Monitor Connection Make sure that the monitor is disconnected from mains and the power switches of the computer and all attached devices are turned off before connecting the monitor. Connect the signal cable plug to the videocontroller connector at the back of the computer. Tighten the screws on the plug by hand.
  • Page 13: User Controls

    1.7. User Controls Turning the Monitor ON and OFF Push the power switch to turn the monitor on or off. Power indicator Power switch Brightness Contrast Navi (menu) & button When the power is turned on, the power-- on indicator will light. The colour of the the power---on light indicates the operating state of the monitor.
  • Page 14: Moving In The Menu

    1.8. Menu All adjustments and settings are covered with following main menu displays: SIZE & POSITION . . . SHAPE . . . COLOR. . . AUDIO MISCELLANEOUS . . . Menu line written in upper section of the menu display is a headline of another menu display. Menu lines written in lower section contain a property which you may adjust or perform settings.
  • Page 15 HORIZONTAL CENTERING PREVIOUS VALUE: ADJUST: - -/+ WIDTH NOKIA 447PRO 75Hz PREVIOUS VALUE: SIZE & POSITION ADJUST: - -/+ SHAPE... NAVI COLOR... VERTICAL CENTERING AUDIO MISCELLANEOUS PREVIOUS VALUE: EXIT MENU ADJUST: - -/+ AUTO SHAPE HORIZONTAL CENTERING HEIGHT WIDTH VERTICAL CENTERING...
  • Page 16: Site Preparation

    2. Site Preparation 2.1. Location This Monitor is designed for normal office conditions. It is equipped with own power supply. It is not to be serviced or repaired on site 2.2. Troubleshooting Local service facilities should perform simple maintenance such as trimming. More advanced main- tenance and repair that requires replacement of components which in turn requires testing and re- trimming should be carried out in a central workshop.
  • Page 17: Checking The Operation Of Powersaver

    2.3. Checking the Operation of PowerSaver The proper operation of the function requires a computer with VESA DPMS power management capabilities. Note that the power saving feature must be activated in the computer when checking the operation. State Colour of the power ---on indicator Monitor Normal Operation Green...
  • Page 18: Controlling The Memory For Picture Adjustments

    3. Controlling the Memory for Picture Adjustments The picture adjustment values are stored in non-volatile memory. The memory has separated areas for User Adjustments and for Factory Adjustments. 3.1. Memory for User Adjustments 3.1.1. Adjustment If there are values available in the memory for user adjustments, corresponding to the present timing signals, they are always used.
  • Page 19: Service Mode

    4. Service Mode Service Mode is needed for updating of the factory adjustments for timings listed in the chapter Pre- set Display Modes. If there is no location in factory adjustment memory for display mode currently in use, the adjustment affects the memory for user adjustments. 4.1.
  • Page 20: Service Menu

    Geometry, Grey Scale, Product Information or Memory Settings. Adjust each property with navi button. 4.2.2. Geometry Geometry submenu contain placement, size and shape adjustments. NOKIA 447PRO 85Hz GEOMETRY . . . GREY SCALE . . . PRODUCT INFORMATION . . .
  • Page 21: Exit From Service Mode

    4.2.4. Initializing the Replacement IC203 on SMA board If the memory for factory adjustments is replaced, it must be initialized. During initializing all memory locations are written with approximate values. They must be updated in service mode as explained in the chapter ’Adjustment Procedure’. Activate service mode as explained before.
  • Page 22: Workshop Maintenance

    5. Workshop Maintenance 5.1. Important Safety Notice The components, which are important for safety, are marked with special mark ! on the circuit dia- gram. It is essential that these critical parts should be replaced with manufacture’s specified parts to prevent X---radiation, shock, fire or other hazards.
  • Page 23: Disassembly

    5.5. Disassembly Cabinet Set the monitor on cushion picture tube facing down 1. Push dowel together 2. Loosen and remove three screws. And take off usb cable. 3. Loosen and remove two screws. 4. Open the plastic pawl with a screwdriver or the special tool (for instance 860006) by pushing, don’t twist.
  • Page 24: Image Performance

    6. Image Performance Measurements to verify this specification shall be made with equipment that measures the displayed image as if it were projected forward onto flat panel tangent to the centre of the CRT face plate sur- face and perpendicular to the Z---axis of the CRT. The following specifications are applicable over specified input power conditions, specified environ- mental operating conditions and after being subjected to the specified non---operating environmen- tal conditions.
  • Page 25: Straightness Of Line Segment

    6.3. Straightness of Line Segment Definition: For any segment of an edge of the active picture the deviation from being straight is defined as the distance from the straight line formed by connecting the end points of the segment under test to the point on the line segment furthest from that construction.
  • Page 26: Color Temperature And Tracking

    6.6. Color Temperature and Tracking Measurement conditions: Test pattern 50 x 50 mm white field at the screen centre. Brightness control adjusted for a minimal background raster luminance. Input signals R,G and B with maximum amplitude. Color temperature 9300 K. Requirements When contrast control is adjusted from a luminance level of 100 cdm (nits) to 30 cdm...
  • Page 27: Convergence

    Luminance uniformity With full white field and with the Nominal brightness luminance and with the contrast control set for a luminance of 100cdm at the center of the screen measure the luminance uniformity. The luminance at anywhere in the display area must be more than 75 % of the luminance at the center. This uniformity specification must be fulfilled the tube facing east, west, north and south.
  • Page 28: Adjustment Procedure

    7. Adjustment Procedure The following procedure must be carried out in case of large service operations e.g. when a circuit board or nonvolatile memory ICA203 has been replaced by a new one. The order of adjustments explained here has been found to produce the desired result with the mini- mum of effort.
  • Page 29: High Voltage

    7.2. Preliminary Preparations Connect the signal cable to the PC. Switch on the monitor and the PC. Let the monitor warm up for 20 minutes before starting the adjustments. 7.2.1. High Voltage Select 31.47kHz/60Hz (NCE300) crosshatch test pattern. Connect the high voltage meter to the anode of the picture tube. Adjust the high voltage to 27.0 ±0.3 kV with RT301 on SMA ---board.
  • Page 30: Geometry

    300 +/- - 3.0 mm 7) Repeat steps 4) and 5) for every display mode to be stored. Note that the display mode can be changed without leaving the service mode. NOKIA 447PRO 85Hz GEOMETRY . . . GREY SCALE . . .
  • Page 31 7.4. Grey Scale The grey scale is adjusted for 9300K colour temperature. Activate Service Mode in 91.146/85.0 (NCE642). 7.4.1. The Most Dominant Colour The most dominant colour has been marked in a label on the deflection yoke. It may not be correct if tube or SMH card has been changed. In that case judge the most dominant colour from the tone of the picture after you have made the following adjustments.
  • Page 32 7.7. Convergence Reduce first the convergence error in the middle of the screen to minimum using static adjustments. After the convergence is faultless in the middle of the tube, use dynamic adjustments to eliminate the error in the edges of the tube. Static adjustments affects the whole picture area: Magnet ring set on the tube neck (horizontal + vertical) Dynamic adjustments affects a part of the picture area:...
  • Page 33 7.7.4. Dynamic Convergence Deflection yoke trimmers A--- area B--- area Purity magnet rings. Do not adjust ! 7.7.5. Allowed Error Levels for Convergence Area A ≤ 0.30 mm Area B ≤ 0.40 mm 447R...
  • Page 34 7.8. Colour Purity Do not move purity magnet rings. If the purity magnet rings are found to have moved during trans- portation or handling, set them just in the original position by tracing the locking paint put on purity magnet rings and holder of beam bender and then readjust the static convergence. 447R...
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  • Page 37 BLOCK DIAGRAM 180 V Deflection 80 V Prosessor Power Supply +/- 15 V Vert Vertical TDA9109S/N UC3842 yoke Vertical +13 V/-15V Audio adjust shrink 32 AC in 90 to Output 264 VAC control TDA9309 V-fly Heater RESET V&H sync UVLO Step Down H-drive Converter...
  • Page 38 5...
  • Page 39 447R...
  • Page 40 447R...
  • Page 41 447R...
  • Page 42 447R...
  • Page 43 Spare Parts Production Description Emis- sion 447PRO 447R351 17” NOKIA FLAT AG USB AUDIO EU 447PRO 447R359 17” NOKIA FLAT AG USB AUDIO US Spare Parts 447R...
  • Page 44 Item no Description Code Front cover UM8094A Nokia badge UA1243 Knob, small UT1846 Knob, big UT1845 Power button UT1847 Lightpipe UA7743 PCB audio connector SME004 Microphone tube SE2761 Control module SMZ081 Screw WC0347 Loudspeaker QP0233 Loudspeaker box UG1026 Fastener UL0140...
  • Page 45 Picture tube NM1055 Demaign coil FD0176 Lead band UJ0221 Screw WC0036 Foaming tape XF0200 Grounding band for crt SE2778 Grounding spring UC3016 Brace UC7164 DY cable QM0204 Tilt coil cable QM0188 Demaign.coil holder UG1028 Ties UJ0220 Spare Parts 447R...
  • Page 46 Item no Description Code Side support UC7052 Screw WC0036 Mainboard SMA249 Grounding spring UC7109 Strainreliefer UC7015 Spring UC6946 Cover (video) Video PCB SMH164 Bottom (video) Cushion support UA1319 Cushion support UA1318 Grounding spring UC7064 Plate cover assembly UC7051 Spring UC7063 Support frame UG1050 Wire holder...
  • Page 47 Item no Description Code Cushion support UA1319 Back cover UD0656 Screw WC0354 Type label ZZ2856 Bottom cover US0122 USB- -box UC7075 USB- -insulator UG1062 USB- -box cover UC7074 Screw WC0541 Bottom plate UC7010 Foot pad UL0135 ECN label ZZ2782 Spare Parts 447R...
  • Page 48 Packing materials: Packing box ZA2598 Packing label ZZ2473 Plastic foil Side cushion Including Left and Right ZA5023 LDPE Plasticbag 900x930 ZA0474 Accessories: Plastic bag ZA0453 Audio cable QM0150 Microphone cable QM0151 Power cord QM0028 447R351 Power cord QM0049 447R359 USB cable QM0170 User guide ZK0024...
  • Page 49 Part Description Item Number SMA249 MAIN BOARD VENTURA 447R AG3265 MF RES 0W5 46R4 F TC50 2.5 RA305 AG3281 MF RES 0W5 68R1 F TC50 2.5 RA307 AJ0107 WW RES 5W0 12R K RM15 10X10X27 RA142 AJ2523 MO RES 2W0 10R J 6- -17 RA438 AJ2603 MO RES 2W0 22R J 6- -17...
  • Page 50 Part Description Item Number JF0168 DIODE BYW98- -200 200V 3A DO- -27 DA121 DA128 DA127 JL0069 OPTOCOUPLER VRMS 5KV ICA102 ICA103 JM0334 TR BD135 NPN 45V 1A5 250MHZ TO TA118 JM0340 TR BUH1015 N 1500V 14A ISOWATT TA409 JS0035 FET IRF820 N 500V 2.5A 3.0R TA113 JS0078 FET STP7NB60FP N 600V 3.5A 1R2...
  • Page 51 Part Description Item Number AA0681 CF RES 0W25 2K2 J 2.5- -7 RA342 RA332 AA0685 CF RES 0W25 3K3 J 2.5- -7 RA306 AA0689 CF RES 0W25 4K7 J 2.5- -7 RA133 RA290 RA295 RA294 RA291 RA292 RA293 RA228 AA0693 CF RES 0W25 6K8 J 2.5- -7 RA121 AA0691...
  • Page 52 Part Description Item Number AC4477 CHIPRES 0W1 1K5 5% 0805 20 RA165 AC4479 CHIPRES 0W1 1K8 5% 0805 20 RA214 RA120 AC4481 CHIPRES 0W1 2K2 5% 0805 20 RA127 RA118 RA252 RA317 RA507 RA315 AC4483 CHIPRES 0W1 2K7 5% 0805 20 RA277 RA278 RA279 RA280 AC4485...
  • Page 53 Part Description Item Number AG3601 MF RES 0W5 100K F TC50 2.5 RA110 AG3609 MF RES 0W5 121K F TC50 2.5 RA159 RA415 AG3617 MF RES 0W5 147K F TC50 2.5 RA447 AG3681 MF RES 0W5 681K F TC50 2.5 RA420 CA0324 CERCAP Y5P 100P K 1KV Y5 D8...
  • Page 54 Part Description Item Number CN2523 ELCAP 100U M 25V RM5 :105’ 9 CA142 CN2543 ELCAP 100U M 50V RM5 105 11X1 CA226 CA467 CN2563 ELCAP 2U2F M 50V RM5: 105’5X1 CA211 CN2566 ELCAP 4U7F M 50V RM5: 105’6X1 CA209 CN2581 ELCAP 220U M 35V RM5 105 11X1 CA118 CA468 FA4000...
  • Page 55 SMA246E SB5250 02.00 Page 7 447R...
  • Page 56 SMA246E SB5250 02.00 Page 8 447R...
  • Page 57 SMA246E SB5250 02.00 Page 9 447R...
  • Page 58 SMA246E SB5250 02.00 Page 10 447R...
  • Page 59 SMA246E SB5250 02.00 Page 11 447R...
  • Page 60 SMA246E SB5250 02.00 Page 12 447R...
  • Page 61 SMA246E SB5250 02.00 Page 13 447R...
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  • Page 75 Part Description Item Number SMH164 VIDEO BOARD FLAT- -AG CA0306 CERCAP Y5T 220P M 2KV Y7.5 D CA0350 CERCAP 3N3 K 2KV Y7.5 CK0465 PESCAP MKT 1U0 K 250V Y15 091 105 205 305 CN2040 ELCAP 10U M 250V RM5 105’ 10 CN2546 ELCAP 100UF M 100V RM5 105’...
  • Page 76 Part Description Item Number CC3480 CHIP CERCAP X7R 10% 100N 25V 0 001 003 006 007 008 009 014 031 032 029 110 210 310 CC4898 CHIPCERCAP Y5V 1UF Z 25V 1206 CC4917 CHIPCAP X7R 10N 10% 200V 033 010 FOIL CK0283 PESCAP MKT 100N K 250V Y5 070...
  • Page 77 SMH164C SB5254 08.99 Page 3 447R...
  • Page 78 SMH164C SB5254 08.99 Page 4 447R...
  • Page 79 600R 600R HEADPHONE 600R 600R 2u2 50V 464R 600R 464R 600R QK1490 600R 600R EXT.MIC 600R 600R QK1490 SME004C 447R SB5205 08.99 Page 2...
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