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iLO CR320IL8 A Service Manual

32″ digital / analog color television
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SERVICE MANUAL
32" DIGITAL / ANALOG
COLOR TELEVISION
CR320IL8 A

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  • Page 1 SERVICE MANUAL 32″ DIGITAL / ANALOG COLOR TELEVISION CR320IL8 A...

  • Page 2: Table Of Contents

    IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and described in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.

  • Page 3: Specifications

    SPECIFICATIONS *Test input Video input : 1 Vp-p Audio input : 500 mV rms Tuner : Ant. input (80 dBµV) Video 87.5 % < DEFLECTION > Description Condition Unit Limit Horizontal 90±5 1. Over Scan Vertical 90±5 Horizontal ±15 2. Linearity Vertical ±10 3.
  • Page 4 < ATSC > Description Condition Unit Limit 1. RECEIVED FREQ. RANGE >100 (-28dBm) – VHF LOW BAND. CH.4 -76/0 2. ATSC DYNAMIC RANGE VHF HI BAND. CH.10 -76/0 (min./max.) UHF BAND. CH.41 -74/4 VHF LOW BAND. CH.4 3. ATSC SUSCEPTIBILITY TO VHF HI BAND.

  • Page 5: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.
  • Page 6 Also, because the picture tube shields and an isolation transformer only if the AC power mounting hardware perform an X-radiation plug is inserted so that the chassis is protection function, they must be correctly in connected to the ground side of the AC power place.
  • Page 7 of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced. Precautions during Servicing A. Parts identified by the # symbol are critical for safety.
  • Page 8 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. 1.

  • Page 9: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC 1. The output pin of the 3 pin Regulator ICs is 1. Removal indicated as shown. With Hot-Air Flat Pack-IC Desoldering Machine: Top View Bottom View 1.
  • Page 10 3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each 1. Using desoldering braid, remove the solder from pin or the solder lands under the IC when all pins of the flat pack-IC.
  • Page 11 2. Installation With Iron Wire: 1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the CBA flux which is applied to all pins of the flat pack-IC, so you can install a replacement flat pack-IC more you can remove it easily.
  • Page 12 Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.

  • Page 13: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Note: (1) Order of steps in procedure. When reassembling, This flowchart indicates the disassembly steps for the follow the steps in reverse order. These numbers cabinet parts, and the CBA in order to gain access to are also used as the Identification (location) No.
  • Page 14 (S-1) [4] DTV Module CBA Unit Module PCB Holder [3] Main CBA Front Cabinet Control Plate (S-3) (S-2) (S-1) [1] Rear Cabinet Fig. D1 Fig. D3 [1] Rear Cabinet (S-1) (S-1) (S-1) (S-1) Degaussing Coil Anode Cap (S-2) [2] CRT (S-4) Ground Wire (S-3)
  • Page 15 TV Cable Wiring Diagram DG691 SP802 SP801 DEGAUSSING COIL MAIN CBA CLN801 CLN802 CN802 CN801 CN691 WH301A DTV MODULE CBA UNIT T571 CN902 CN102 FLYBACK TRANSFORMER CN571 TU11 TUNER CN101 WH501A CN901 AC601 AC CORD WH501B FOCUS JK1501 SCREEN WH301B CN1501 CRT CBA ANODE CAP...

  • Page 16: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: “CBA” is abbreviation for How to enter the service mode: “Circuit Board Assembly.” Service mode: Note: Electrical adjustments are required after 1. Use the service remote control unit. replacing circuit components and certain 2. Turn the power on. mechanical parts.
  • Page 17 2. Initial Setting S-CLR 1. Press [MENU] button on the service remote General control unit. Then select “S-COLOR” (S-CLR) 1. Enter the Service mode. display. 2. Press [VOL n] button on the service remote 2. Press [CH o / p] buttons on the service remote control unit.
  • Page 18 6. SD Check Mode C-SRP 1. Press [MENU] button on the service remote 1. Enter the Service mode. control unit. Then select “COMPONENT SHARP” 2. Press [1] button on the remote control unit. The (C-SRP) display. unit enters the SD-Check mode. 2.
  • Page 19 7. H. Position Adjustment 9. V. Position Adjustment Purpose: To obtain correct vertical width of screen Purpose: To obtain correct horizontal position of image. screen image. Symptom of misadjustment: If V. Position is Symptom of Misadjustment: If H. Position is incorrect, vertical height of image on the screen may incorrect, horizontal position of image on the screen not be properly displayed.
  • Page 20 11. Cut-off Adjustment pressing [CH o / p] buttons. When done with steps 4, 5 and 6 the horizontal line should be pure Purpose: To adjust the beam current of R, G, B, and white, if not, then attempt the Cut off adjustment screen voltage.
  • Page 21 9. At this time, Re-check if Horizontal line is white. If 4. Press [VOL m / n] button on the service remote not, Re-adjust Cut-off Adjustment until the control unit and select “U-Offset YUV (Magenta)” Horizontal Line becomes pure white. mode.
  • Page 22 17. Sub-Brightness Adjustment 18. Focus Adjustment Purpose: To get proper brightness. Purpose: Set the optimum Focus. Symptom of Misadjustment: If Sub-Brightness is Symptom of Misadjustment: If Focus Adjustment is incorrect, proper brightness cannot be obtained by incorrect, blurred images are shown on the display. adjusting the Brightness Control.
  • Page 23 19. Purity Adjustment 21. Convergence Adjustment Purpose: To obtain pure color. Purpose: To obtain proper convergence of red, green and blue beams. Symptom of Misadjustment: If Color Purity Adjustment is incorrect, large areas of color may not Symptom of Misadjustment: If Convergence be properly displayed.
  • Page 24 4. Remove the DY Wedges and slightly tilt the Deflection Yoke horizontally and vertically to obtain the best overall convergence. 5. Fix the Deflection Yoke by carefully inserting the DY Wedges between CRT and Deflection Yoke. 22. Yh, Yv, Xv Adjustment 1.

  • Page 25: How To Initialize The Television

    HOW TO INITIALIZE THE TELEVISION To put the program back at the factory-default, initialize the television using the following procedure. 1. Use the service remote control unit. 2. Turn the power on. 3. Press [SLEEP] button on the service remote control unit to enter the Service mode.

  • Page 26: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram P71D0BLS...
  • Page 27 IF/Video Block Diagram P71D0BLIF...
  • Page 28 Audio Block Diagram P71D0BLA...
  • Page 29 DTV Module Block Diagram P71D0BLDTV...
  • Page 30 CRT/H.V. Block Diagram P71D0BLCRT...
  • Page 31 Power Supply Block Diagram P71D0BLP...

  • Page 32: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes WARNING Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.
  • Page 33 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE_A,_V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V. 2.
  • Page 34 Main 1/5 Schematic Diagram P71D0SCM1...
  • Page 35 Main 2/5 Schematic Diagram P71D0SCM2...
  • Page 36 Main 3/5 Schematic Diagram P71D0SCM3...
  • Page 37 Main 4/5 & CRT Schematic Diagram P71D0SCM4...
  • Page 38 Main 5/5 Schematic Diagram CAUTION ! NOTE: CAUTION ! : For continued protection against risk of fire, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. The voltage for parts in hot circuit is measured using replace only with same type 4 A, 125V fuse.
  • Page 39 DTV Module 1/2 Schematic Diagram P71D0SCD1...
  • Page 40 DTV Module 2/2 Schematic Diagram VOLTAGE CHART CN101 Pin No. Voltage CN102 Pin No. Voltage P71D0SCD2...
  • Page 41 Main CBA Top View CAUTION ! Because a hot chassis ground is present in the power Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circuit, an isolation transformer must be used. CAUTION ! : For continued protection against risk of fire, If Main Fuse (F601) is blown , check to see that all components in the power supply Also, in order to have the ability to increase the input...
  • Page 42 Main CBA Bottom View CAUTION ! Because a hot chassis ground is present in the power Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circuit, an isolation transformer must be used. CAUTION ! : For continued protection against risk of fire, If Main Fuse (F601) is blown , check to see that all components in the power supply Also, in order to have the ability to increase the input...
  • Page 43 CRT CBA Top View CRT CBA Bottom View Q1532 Q1512 Q1522 Collector Collector Collector BP71C0F01011-2 8-12...

  • Page 44: Waveforms

    WAVEFORMS WF1 ~ WF12 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: Color Bar Signal (with 1kHz Audio Signal) INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes. reconnect to AC outlet and then turn power on. (Brightness---Center Color---Center Tint---Center Contrast---Approx 70%) 1DIV: 50V 20µs 1DIV: 10V 5ms...

  • Page 45: Wiring Diagram

    WIRING DIAGRAM P71D0WI 10-1...

  • Page 46: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS IC301 (TV Micro Controller) Signal Name Function Signal Name Function +2.5V Regulator Control Signal 36 +2.5V-CTRL Output RCV-IN Remote Control Signal Input 37 C-IN[YC] Chrominance Signal Input VOLUME Volume Control Signal Output 38 Y-IN[YC] Luminance Signal Input DTV-H DTV On Signal at High 39 NU...
  • Page 47 Signal Name Function 76 NU Not Used 77 SCL Serial Clock 78 I2C-OPEN Chip Select 79 SDA Serial Data Detecting S-VIDEO Jack 80 S-SW Connection 11-2 P71D0PIN...

  • Page 48: Exploded Views

    EXPLODED VIEWS Cabinet Scotch Tape #880 CLN551 V501 CRT CBA SP801 DG691 Scotch Tape #880 CLN801 DTV Module SP802 TB12 CBA Unit TB16 A1-3 CLN802 TB16 TB13 AC601 See Electrical Parts List A1-2 for parts with this mark. A1-1 Main CBA 12-1 P71D0CEX...
  • Page 49 Packing Tape Packing tape Packing tape 12-2 P71D0PEX...

  • Page 50: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing.

  • Page 51: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. CHIP CERAMIC CAP . B K 1000pF/50V CHD1JKB0B102 Before replacing any of these components, read CHIP CERAMIC CAP . F Z 0.01µF/50V CHD1JZB0F103 carefully the product safety notice in this service C301...
  • Page 52 Ref. No. Description Part No. Ref. No. Description Part No. C419 FILM CAP .(P) 0.1µF/50V J CMA1JJS00104 C684 ELECTROLYTIC CAP . 1000µF/10V M CE1AMASDL102 C420 ELECTROLYTIC CAP . 1µF/50V M CE1JMASDL1R0 C685 ELECTROLYTIC CAP . 100µF/10V M CE1AMASDL101 C423 CHIP CERAMIC CAP . F Z 0.1µF/50V CHD1JZB0F104 C705 CHIP CERAMIC CAP .
  • Page 53 Ref. No. Description Part No. Ref. No. Description Part No. D597 ZENER DIODE MTZJT-774.3B QDTB0MTZJ4R3 PCB JUMPER D0.6-P5.0 JW5.0T D605# DIODE 1N5406 NDLZ001N5406 PCB JUMPER D0.6-P5.0 JW5.0T D606# DIODE 1N5406 NDLZ001N5406 L302 INDUCTOR 33µH-K-5FT LLARKBSTU330 D607# DIODE 1N5406 NDLZ001N5406 L303 INDUCTOR 33µH-K-5FT LLARKBSTU330 D608#...
  • Page 54 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 220 Ω CHIP RES. 1/10W J 220 Ω R310 RRXAJB5Z0221 R412 RRXAJB5Z0221 CHIP RES. 1/10W J 6.8k Ω CHIP RES. 1/10W J 1M Ω R311 RRXAJB5Z0682 R416 RRXAJB5Z0105 CHIP RES.
  • Page 55 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 22k Ω R609 PCB JUMPER D0.6-P5.0 JW5.0T R751 RRXAJB5Z0223 METAL OXIDE FILM RES. 2W J 0.22 Ω CHIP RES. 1/10W J 27k Ω R613# RN02R22ZU001 R752 RRXAJB5Z0273 CARBON RES.
  • Page 56 Ref. No. Description Part No. Ref. No. Description Part No. HEAT SINK (PLL) ASSEMBLY L4900UZ 1EM422346 CONNECTOR BC14 PCB JUMPER D0.6-P5.0 JW5.0T CN1501 CONNECTOR PIN 1P RT-01N-2.3A 1730688 BC15 BEAD INDUCTOR FBR07HA121TB-00 LLBF00ZTU021 DIODE BC571 BEAD INDUCTOR FBA04HA600VB-00 LLBF00STU026 D1501 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 BC572...
  • Page 57 Misuse of any trademarks or any other content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rights to the fullest extent of the law. CR320IL8 A P71D0UM 2007-06-19...

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