Magnavox CMWC13D6 Service Manual
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Magnavox CMWC13D6 Service Manual

13" color tv/dvd
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SERVICE MANUAL
13" COLOR TV/DVD
CMWC13D6

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  • Page 1 SERVICE MANUAL 13″ COLOR TV/DVD CMWC13D6...
  • Page 2 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 TABLE OF CONTENTS Specifications ................1-1-1 Laser Beam Safety Precautions .
  • Page 4 SPECIFICATIONS < TV Section > *Test input terminal <Except Tuner>-------------Video input (1Vp-p) Audio input (-10dB) <Tuner>-----------------------Ant. input (80dBµV) Video: 87.5% Audio: 25kHz dev (1kHz Sin) <DEFLECTION> Description Condition Unit Nominal Limit Horizontal 10±5 1. Over Scan Vertical 10±5 Horizontal — ±15 2.
  • Page 5 <TUNER> Measurement at Speaker (Audio), R1016 (Video) Description Condition Unit Nominal Limit 1. Video S/N (80dBµV, TV4ch) — 2. Audio S/N (W/LPF, 15 kHz dev.) — 3. Audio Output Power — (at 10% distortion, 25 kHz dev.) NOTES: 1. Nominal specifications represent the design specifications. All units should be able to approximate these. Some will exceed and some may drop slightly below these specifications.

  • Page 6: Laser Beam Safety Precautions

    LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on.

  • Page 7: 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 8 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 9 of the countries in which they are to be sold. 2) Strip about 15 mm of the insulation from the However, in order to maintain such compliance, it ends of the wires. If the wires are stranded, is equally important to implement the following twist the strands to avoid frayed conductors.
  • Page 10 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 11: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder 1. The output pin of the 3 pin Regulator ICs is Pb free mark will be found on PCBs which use Pb indicated as shown. free solder. (Refer to figure.) For PCBs with Pb free mark, be sure to use Pb free solder.
  • Page 12 around the flat pack-IC to protect other parts from With Soldering Iron: damage. (Fig. S-1-2) 1. Using desoldering braid, remove the solder from 3. The flat pack-IC on the CBA is affixed with glue, so all pins of the flat pack-IC. When you use solder be careful not to break or damage the foil of each flux which is applied to all pins of the flat pack-IC, pin or the solder lands under the IC when...
  • Page 13 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 14 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 15: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart (2): Parts to be removed or installed. (3): Fig. No. showing Procedure of Part Location. This flowchart indicates the disassembly steps for the (4): Identification of part to be removed, unhooked, cabinet parts, and the CBA in order to gain access to unlocked, released, unplugged, unclamped, or item(s) to be serviced.
  • Page 16 [1] Rear Cabinet Fig. D1 Anode Cap CRT CBA [3] CRT Fig. D2 1-5-2 T8202DC...
  • Page 17 [2] Tray Chassis Unit Desolder [4] Sub CBA Desolder [5] DVD Main CBA Unit [6] DVD Mechanism [7] Main CBA Fig. D3 1-5-3 T8202DC...
  • Page 18 DVD Mechanism Short the three short lands by soldering. (Either of two places.) View for A FPC Cable Fig. D4 1-5-4 T8202DC...
  • Page 19 ANODE CRT CBA SCREEN FOCUS CN2505 CL2501 CN301 DVD MAIN CN201 CBA UNIT CN002 CN001 SUB CBA CN9102 CN9101 MAIN CBA T1571 CL1501 CN601 CN1102 CN1101 CN1571 CN2801 TO SPEAKER CL2801 CN1801 JUNCTION CBA Fig. D5 1-5-5 T8202DC...

  • Page 20: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: How to enter the Service mode: "CBA" is abbreviation for "Circuit Board Service mode: Assembly." 1. Use the service remote control unit. NOTE: 2. Turn the power on. Electrical adjustments are required after replacing 3. Press "DISC MENU" button on the service remote circuit components and certain mechanical parts.
  • Page 21 2. Setting for BRIGHT, CONTRAST, 3. C-Trap Adjustment COLOR, TINT, V-TINT and Purpose: To get minimum leakage of the color signal SHARP Data Values carrier. Symptom of Misadjustment: If C-Trap Adjustment is General incorrect, stripes will appear on the screen. 1.
  • Page 22 4. V. Size Adjustment 6. H. Position Adjustment Purpose: To obtain correct vertical height of screen Purpose: To obtain correct horizontal position of image. screen image. Symptom of Misadjustment: If H. Position is incor- Symptom of Misadjustment: If V. Size is incorrect, rect, horizontal position of image on the screen may vertical height of image on the screen may not be not be properly displayed.
  • Page 23 7. White Balance Adjustment 8. Sub-Brightness Adjustment Purpose: To mix red, green and blue beams correctly Purpose: To get proper brightness. for pure white. Symptom of Misadjustment: If Sub-Brightness is incorrect, proper brightness cannot be obtained by Symptom of Misadjustment: White becomes bluish adjusting the Brightness Control.
  • Page 24 9. Focus Adjustment 10. H f Adjustment Purpose: To get correct horizontal frequency. Purpose: Set the optimum Focus. Symptom of Misadjustment: If Focus Adjustment is Symptom of Misadjustment: If H f adjustment is incorrect, blurred images are shown on the display. incorrect, skew distortion will appear on the screen.
  • Page 25 11. Cut-off Adjustment The following 2 adjustments normally are not attempted in the field. They should be done Purpose: To adjust the beam current of R, G, B, and only when replacing the CRT then adjust as a screen voltage. preparation.
  • Page 26 13. Convergence Adjustment Purpose: To obtain proper convergence of red, green and blue beams. Symptom of Misadjustment: If Convergence Adjust- ment is incorrect, the edge of white letters may have color edges. Test point Adj. Point Mode Input C.P. Magnet (RB), Dot Pattern C.P.
  • Page 27 HOW TO INITIALIZE THE TV/DVD To put the program back at the factory-default, initialize the TV/DVD as the following procedure. < DVD Section > < TV Section > 1. Press [1], [2], [3], [4], and [DISPLAY] buttons on the 1. Use the service remote control unit. remote control unit in that order.

  • Page 28: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE 1. Turn the power on and press [SELECT] button on 5. After programming is finished, the tray opens auto- the remote control unit to put the TV/DVD into DVD matically. Fig. e appears on the screen and the mode.
  • Page 29 BLOCK DIAGRAMS < TV Section > System Control Block Diagram 1-9-1 T8203BLS...
  • Page 30 IF/Video Block Diagram 1-9-2 T8203BLIF...
  • Page 31 Audio Block Diagram 1-9-3 T8203BLA...
  • Page 32 CRT/H.V. Block Diagram 1-9-4 T8203BLCRT...
  • Page 33 Power Supply Block Diagram 1-9-5 T8203BLP...
  • Page 34 BLOCK DIAGRAMS < DVD Section > DVD System Control / Servo Block Diagram 1-9-6 T8203BLSD...
  • Page 35 Digital Signal Process Block Diagram 1-9-7 T8203BLD...
  • Page 36 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 37 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE4A, 125V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE4A, 125V. 2.
  • Page 38 Main 1/4 Schematic Diagram < TV Section > T8203SCM1 1-10-3...
  • Page 39 Main 2/4 & Junction Schematic Diagram < TV Section > T8203SCM2 1-10-4...
  • Page 40 Main 3/4 & CRT Schematic Diagram < TV Section > T8203SCM3 1-10-5...
  • Page 41 Main 4/4 Schematic Diagram < TV Section > CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. NOTE: CAUTION ! : For continued protection against risk of fire, If Main Fuse (F1601) is blown , check to see that all components in the power supply The voltage for parts in hot circuit is measured using replace only with same type 4 A, 125V fuse.
  • Page 42 Sub Schematic Diagram < TV Section > 1-10-7 T8203SCSUB...
  • Page 43 DVD Main 1/3 Schematic Diagram < DVD Section > T8203SCD1 1-10-8...
  • Page 44 DVD Main 2/3 Schematic Diagram < DVD Section > T8203SCD2 1-10-9...
  • Page 45 DVD Main 3/3 Schematic Diagram < DVD Section > T8203SCD3 1-10-10...
  • Page 46 Main CBA Top View < TV Section > CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. NOTE: CAUTION ! : For continued protection against risk of fire, If Main Fuse (F1601) is blown , check to see that all components in the power supply The voltage for parts in hot circuit is measured using replace only with same type 4 A, 125V fuse.
  • Page 47 Main CBA Bottom View < TV Section > CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. NOTE: CAUTION ! : For continued protection against risk of fire, If Main Fuse (F1601) is blown , check to see that all components in the power supply The voltage for parts in hot circuit is measured using replace only with same type 4 A, 125V fuse.
  • Page 48 Sub CBA Top View < TV Section > Sub CBA Bottom View < TV Section > BT9200F01012-B Junction CBA Top & Bottom View < TV Section > BT9200F01012-D 1-10-13...
  • Page 49 CRT CBA Bottom View < TV Section > CRT CBA Top View < TV Section > WF14 WF15 Q2521 Q2521 Q2511 Q2511 Collector Base Collector Base WF13 Q2531 Collector Q2531 Base BT9200F01012-C 1-10-14...
  • Page 50 WAVEFORMS T8200WF 1-11-1...

  • Page 51: Wiring Diagram

    WIRING DIAGRAM T8203WI 1-12-1...

  • Page 52: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS Tray Close ~ Play / Play ~ Tray Open Tray Disc Disc Tray Play Close Rotation Stop Open 3.3V Tray IN (TL221) Sled Drive 1.65V (TP303) Disc Drive 1.65V (TP301) 1.65V Focus Drive (TP304) Tracking Drive 1.65V (TP302) 1-13-1...

  • Page 53: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS IC1201 (TV Micro Controller) Signal Name Function Signal Name Function 32 FSC OUT Clock Output 33 NU Not Used AUDIO ATT(L) - Not Used Audio L Output Not Used 35 NU Not Used TEST1 TEST 1 36 NU 37 V RAMP F/B Vertical Ramp Feed Back...
  • Page 54 Signal Name Function 66 KEY-0 Key Input 0 67 X-RAY X-RAY Protect DVD-AUDIO- DVD Audio Mute Signal MUTE 69 AFT AFT Voltage Input 70 REMOTE-IN Remote Control Signal Input 71 NU Not Used 72 NU Not Used Power Supply Failure 73 P-SAFETY 1 Detection 1 Power Supply Failure...

  • Page 55: Lead Identifications

    LEAD IDENTIFICATIONS 2SC2785(F) 2SA1175(F) KTC3199-GR-AT/P 2SA950-O(TE2 F T) 2SC1627-Y(TE2.F.T) 2SC2120-O(TE2 F T) M24C02-WMN6P 2SC2482 E C B E C B 2SK3563 KIA431-AT/P LTV-817C-F LA78040A 1: A 2: K 3: E 4: C 1: R 2: A 3: K SA7412 1 2 3 S D G M61271M8-073FP RF3T M61113FP TF0G...

  • Page 56: Exploded Views

    EXPLODED VIEWS Cabinet Details for L551 SHINWHA and surrounding parts TAPE SGT-730 (BLACK) V501-2 SHINWHA TAPE SGT-730 V501-1 (WHITE) L551 Sub CBA CLN551 DVD Mechanical Parts L551 TB12 CRT CBA DVD Main CBA Unit SP1802 Junction CBA DG601 DVD Mechanical Parts Scotch Tape #880 V501...
  • Page 57 Packing Packing Tape TAPE Packing Tape 1-16-2 T8203PEX...

  • Page 58: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. V501-1 C.P .MAGNET JH225-FN-00 XM04000BV003 Before replacing any of these components, read V501-2 WEDGE FT-00110W XV10000T4001 carefully the product safety notice in this service CRT TYPE C manual.

  • Page 59: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C1220 CHIP CERAMIC CAP . CH J 180pF/50V CHD1JJ3CH181 Before replacing any of these components, read C1222 ELECTROLYTIC CAP . 1µF/50V M CE1JMASDL1R0 carefully the product safety notice in this service C1223...
  • Page 60 Ref. No. Description Part No. Ref. No. Description Part No. C1623 FILM CAP .(P) 0.01µF/50V J CMA1JJS00103 D1639 PCB JUMPER D0.6-P10.0 JW10.0T C1625 ELECTROLYTIC CAP . 1000µF/10V M CE1AMASDL102 D1640 DIODE 1ZC36(Q) QDLZ001ZC36Q C1626 ELECTROLYTIC CAP . 22µF/50V M CE1JMASDL220 D1650 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133...
  • Page 61 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 2.7k Ω CHIP RES. 1/10W J 4.7k Ω R1204 RRXAJR5Z0272 R1560 RRXAJR5Z0472 CHIP RES. 1/10W J 4.7k Ω CHIP RES. 1/10W J 8.2k Ω R1205 RRXAJR5Z0472 R1561 RRXAJR5Z0822 CHIP RES.
  • Page 62 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 10k Ω R1635 RRXAJR5Z0103 T1601# TRANS POWER 6704 LTT2PC0KT002 CARBON RES. 1/4W J 330 Ω R1636 RCX4JATZ0331 SCREW B-TIGHT D3X8 BIND HEAD+ or GBJB3080 CHIP RES. 1/10W J 22k Ω R1637 RRXAJR5Z0223 SCREW B-TIGHT D3X8 BIND HEAD+...
  • Page 63 Ref. No. Description Part No. CHIP RES. 1/10W J 130 Ω R9788 RRXAJR5Z0131 CHIP RES. 1/10W J 130 Ω R9789 RRXAJR5Z0131 CHIP RES. 1/10W J 100 Ω R9790 RRXAJR5Z0101 CHIP RES. 1/10W J 100 Ω R9791 RRXAJR5Z0101 CRT CBA Ref. No. Description Part No.
  • Page 64 CMWC13D6 T8203CD 2006-07-03...

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