Combination flat color television and video cassette recorder/dvd video player (76 pages)
Summary of Contents for Toshiba MW20F52
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COLOR TELEVISION/ VIDEO CASSETTE RECORDER/ DVD VIDEO PLAYER MW20F52 The above model is classified as a green product (*1), as indicated by the underlined serial number. This Service Manual describes replacement parts for the green product. When repairing this green product, use the part(s) described in this manual and lead-free solder (*2).
Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing of new products containing the restricted substances. Increasing attention is given to issues related to the global environmental. Toshiba Corporation recognizes environmental protection as a key management tasks, and is doing its utmost to enhance and improve the quality and scope of its environmental activities.
CAUTION THIS DIGITAL VIDEO PLAYER EMPLOYS A LASER SYSTEM. TO ENSURE PROPER USE OF THIS PRODUCT, PLEASE READ THIS SERVICE MANUAL CARE- FULLY AND RETAIN FOR FUTURE REFERENCE. SHOULD THE UNIT REQUIRE MAINTENANCE, CONTACT AN AUTHORIZED SERVICE LOCATION-SEE SERVICE PROCEDURE. USE OF CONTROLS, ADJUSTMENTS OR THE PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.
IMPORTANT SAFEGUARDS READ INSTRUCTIONS All the safety and operating instructions should be read before the unit is operated. RETAIN INSTRUCTIONS The safety and operating instructions should be retained for future reference. HEED WARNINGS All warnings on the unit and in the operating instructions should be adhered to. FOLLOW INSTRUCTIONS All operating and use instructions should be followed.
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IMPORTANT SAFEGUARDS (CONTINUED) OUTDOOR ANTENNA GROUNDING If an outside antenna or cable system is connected to the unit, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA 70, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.
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IMPORTANT SAFEGUARDS (CONTINUED) EXAMPLE OF ANTENNA GROUNDING AS PER THE NATIONAL ELECTRICAL CODE ANTENNA LEAD IN WIRE GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) ELECTRIC SERVICE EQUIPMENT GROUNDING CONDUCTORS (NEC SECTION 810-21) GROUND CLAMPS POWER SERVICE GROUNDING NEC-NATIONAL ELECTRICAL CODE ELECTRODE SYSTEM (NEC ART 250, PART H) S2898A...
WHEN REPLACING DVD DECK [ When removing the DVD Deck ] Before removing Pick Up PCB and DVD PCB connector, the short circuit the position shown in Fig. 1 using a soldering iron. If you remove the DVD Deck with no soldering, the Laser may be damaged. [ When installing the DVD Deck ] Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector.
TAPE REMOVAL METHOD AT NO POWER SUPPLY Remove the TV/DVD/VCR block from the main unit as shown in Fig. 1 below can be seen. (Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.) Remove the screw 1 of the Deck Chassis and remove the Loading Motor. Rotate the Pinch Roller Cam in the direction of the arrow by hand to slacken the Video Tape.
PARENTAL CONTROL - RATING LEVEL 4 DIGIT PASSWORD CANCELLATION If the stored 4 digit password in the Rating Level menu needs to be cancelled, please follow the steps below. Turn Unit ON. Set the DVD Mode. Confirm that the 'No Disc' will be appeared on the screen. Press and hold the '7' key on the remote control unit.
TABLE OF CONTENTS GREEN PRODUCT PROCUREMENT ..................A1-1 LEAD-FREE SOLDER ......................A1-1 CAUTION ..........................A1-2 SERVICING NOTICES ON CHECKING .................. A1-3 HOW TO ORDER PARTS ....................... A1-3 IMPORTANT SAFEGUARDS ....................A1-4~A1-6 WHEN PERLACING DVD DECK .................... A1-7 TAPE REMOVAL METHOD AT NO POWER SUPPLY ............A1-8 DISC REMOVAL METHOD AT NO POWER SUPPLY ............
GENERAL SPECIFICATIONS CRT Size / Visual Size 20 inch / 508.0mmV System CRT Type Flat Magnetic Field BV/BH +0.45G / 0.18G Color System NTSC Speaker 2 Speaker Position Front Size 1.8 x 3.9 Inch Impedance 8 ohm Sound Output 2.5W + 2.5W 10%(Typical) System VHS Player / Recorder...
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GENERAL SPECIFICATIONS Signal Video Signal Input Level 1 V p-p/75 ohm Output Level 1 V p-p/75 ohm S/N Ratio (Weighted) at DVD Mode 65dB S/N Ratio (Weighted) at VCR Mode 50dB Horizontal Resolution at DVD Mode 400 Lines Horizontal Resolution at VCR(SP)Mode 220 Lines RGB Signal Output Level...
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GENERAL SPECIFICATIONS G-12 Remote Unit RC-KH Control Glow in Dark Remocon Unit Remocon Format TOSHIBA Format TOSHIBA Custom Code 40-BFh, 44-BBh, 45-Bah Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys TV/VCR Power Channel- Channel+...
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GENERAL SPECIFICATIONS G-13 Features Auto Clock (TV/VCR) Auto Setup Auto CH Memory Closed Caption TV Auto Shut off Function CABLE Comb Filter (2Lines) VM Circuit Choke Coil Protect of FBT Leak Circuit Power On Memory V-chip USA V-chip CANADA V-chip Favorite CH Auto Head Cleaning VIDEO PLUS+(SHOWVIEW,G-CODE)
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GENERAL SPECIFICATIONS G-14 Accessories Owner's Manual Language English w/Guarantee Card Remote Control Unit Battery UM size x pcs UM-4 x 2 pcs OEM Brand Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer 300 ohm to 75 ohm Antenna Adapter Antenna Change Plug DC Car Cord (Center+) AC Plug Adapter...
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Height (cm) 60(ORION SPEC:31) Container Stuffing(40' container) Sets G-19 Material Cabinet Front 94V0 DECABROM Rear 94V0 DECABROM Jack Panel Non-Halogen Demand Eyelet Demand G-20 Environment Environmental standard requirement (by buyer) Green procurement of TOSHIBA Pb-free Phase3(Phase3A) Measures for Whisker A3-6...
DISASSEMBLY INSTRUCTIONS 1-3: TV/DVD/VCR BLOCK (Refer to Fig. 1-3) 1. REMOVAL OF MECHANICAL PARTS Remove the 2 screws 1. AND P.C. BOARDS Disconnect the following connectors: 1-1: BACK CABINET (Refer to Fig. 1-1) (CP303, CP404, CP1704 and CP5903). Remove the 6 screws 1. Remove the TV/DVD/VCR Block in the direction of arrow.
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DISASSEMBLY INSTRUCTIONS 1-5: VCR DECK (Refer to Fig. 1-5) 1-6: VCR PCB (Refer to Fig. 1-6) Remove the 6 screws 1. NOTE Remove the screw 2. Do not remove the cable at the FE Head section. The FE Remove the AV Jack Shield. Head may be damaged if you remove the cable by force.
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DISASSEMBLY INSTRUCTIONS 1-8: DVD PCB/DVD DECK (Refer to Fig. 1-8) 1-9: DEFLECTION PCB (Refer to Fig. 1-9) Remove the 2 screws 1. Short circuit the position shown in Fig. 1-8 using a Remove the 3 screws 2. soldering iron. If you remove the DVD Deck with no Remove the Deflection PCB in the direction of arrow.
DISASSEMBLY INSTRUCTIONS 2-3: LINK UNIT (Refer to Fig. 2-3) 2. REMOVAL OF VCR DECK PARTS Set the Link Unit to the Eject position. 2-1: TOP BRACKET (Refer to Fig. 2-1) Unlock the support 1. Extend the 2 supports 1. Remove the (A) side of the Link Unit first, then remove Slide the 2 supports 2 and remove the Top Bracket.
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DISASSEMBLY INSTRUCTIONS 2-5: LOADING MOTOR/WORM (Refer to Fig. 2-5-A) 2-6: TENSION ASS’Y (Refer to Fig. 2-6-B) Remove the screw 1. Turn the Pinch Roller Cam clockwise so that the Tension Remove the Loading Motor. Holder hook is set to the position of Fig. 2-6-A to move Remove the Worm.
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DISASSEMBLY INSTRUCTIONS NOTE [OK] Tension Connect Take care not to damage the gears of the S Reel and T Reel. Tension Band The Polyslider Washer may on the back of the reel. Take care not to damage the shaft. [NG] Tension Connect Tension Band Do not touch section “A”...
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DISASSEMBLY INSTRUCTIONS 2-9: CASSETTE OPENER/PINCH ROLLER BLOCK/P5 ARM ASS’Y (Refer to Fig. 2-9-A) Unlock the support 1 and remove the Cassette Opener. Remove the Pinch Roller Block and P5 Arm Ass’y. Cassette Opener Spring Position Fig. 2-10-B Pinch Roller Block 2-11: FE HEAD (RECORDER ONLY) (Refer to Fig.
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DISASSEMBLY INSTRUCTIONS 2-13: CAPSTAN DD UNIT (Refer to Fig. 2-13) NOTE 1. In case of the Pinch Roller Cam and Main Cam installa- Remove the Capstan Belt. Remove the screw 1. tion, install them as shown in the circled section of Fig. 2- 14-B so that the markers meet.
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DISASSEMBLY INSTRUCTIONS NOTE 2-17: CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP/LED REFLECTOR 1. When you install the Loading Arm S Unit, Loading Arm T (Refer to Fig. 2-17-A) Unit and Main Loading Gear, align each marker. (Refer to Fig. 2-15-B) Remove the P4 Cap.
DISASSEMBLY INSTRUCTIONS 3. REMOVAL OF DVD DECK PARTS NOTE 1. Do not disassemble the DVD DECK PARTS except listed parts here. Minute adjustments are needed if the Main Frame Ass'y disassemble is done. If the repair is needed except listed parts, replace the DVD MECHA ASS'Y.
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DISASSEMBLY INSTRUCTIONS 3-3: LOADING MOTOR PCB ASS'Y/ LOADING BELT (Refer to Fig. 3-3-A) Pulley Gear Rack Loading Remove the Loading Belt. Remove the screw 1. Main Gear Remove the 2 screws 2. Remove the Loading Motor PCB Ass'y. Main Frame Ass’y Remove the Pulley Gear.
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DISASSEMBLY INSTRUCTIONS 3-6: TRAVERSE HOLDER/INSULATOR (F)/INSULATOR NOTE (R) (Refer to Fig. 3-6-A) When pushing the Rack Feed in the direction of the Remove the Traverse Holder. arrow, it should be restored to the original position by the Remove the 2 Insulator (F). spring force.
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DISASSEMBLY INSTRUCTIONS 3-8: FFC WIRE HANDLING When installing the FFC, fold it correctly and install it as shown from Fig. 3-8-A to Fig. 3-8-C. NOTE Do not make the folding lines except the specified positions for the FFC. [ 24 pin FFC ] Pick Up Side Fold it by 90˚...
DISASSEMBLY INSTRUCTIONS 4. REMOVAL OF ANODE CAP 3. After one side is removed, pull in the opposite direction to remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.
DISASSEMBLY INSTRUCTIONS 5. REMOVAL AND INSTALLATION OF FLAT 3. When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using PACKAGE IC a tweezers and remove the IC by moving with the IC REMOVAL desoldering machine.
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DISASSEMBLY INSTRUCTIONS INSTALLATION 4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- 1. Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 5-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
KEY TO ABBREVIATIONS Audio/Control H.SW Head Switch Automatic Color Control Hertz Audio Erase Integrated Circuit Automatic Frequency Control Intermediate Frequency Automatic Fine Tuning Indicator AFT DET Automatic Fine Tuning Detect Inverter Automatic Gain Control Killer Amplifier Left Antenna Light Emitting Diode A.PB Audio Playback LIMIT AMP...
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KEY TO ABBREVIATIONS SYNC Synchronization SYNC SEP Sync Separator, Separation Transistor TRAC Tracking TRICK PB Trick Playback Test Point UNREG Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display V.PB Video Playback Variable Resistor V.REC Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source...
SERVICE MODE LIST This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter to the SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and remocon key simultaneously.
PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.
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PREVENTIVE CHECKS AND SERVICE INTERVALS CLEANING 2. TAPE RUNNING SYSTEM When cleaning the tape transport system, use gauze NOTE moistened with isopropyl alcohol. After cleaning the heads with isopropyl alcohol, do not 3. CYLINDER run a tape until the heads dry completely. If the heads are not completely dry and alcohol gets on the tape, Wrap a piece of chamois around your finger.
WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. Table 1 Enter DATA SET mode by setting VOLUME to minimum.
MECHANICAL ADJUSTMENTS 1-2: CONFIRMATION AND ADJUSTMENT OF TENSION 1. CONFIRMATION AND ADJUSTMENT POST POSITION Read the following NOTES before starting work. Set to the PLAY mode. • Place an object which weighs between 450g~500g on the Adjust the adjusting section for the Tension Arm position Cassette Tape to keep it steady when you want to make so that the Tension Arm top is within the standard line of the tape run without the Cassette Holder.
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MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE NOTE Install the Torque Gauge (JG002F) and Adapter (JG002B) If the torque is out of the range, replace the following parts. on the S Reel. Set to the Picture Search (Rewind) mode. Check item Replacement Part (Refer to Fig.1-4-B) Then, confirm that it indicates 120~180gf•cm.
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MECHANICAL ADJUSTMENTS 2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ 2-3: TAPE RUNNING ADJUSTMENT CONTROL HEAD (X VALUE ADJUSTMENT) When the Tape Running Mechanism does not work well, Confirm and adjust the height of the Reel Disk. adjust the following items. (Refer to item 1-1) Confirm and adjust the position of the Tension Post.
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MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 1. Tension Connect P4 Post 2. Tension Arm T Brake Spring 3. Guide Roller T Reel 4. Audio/Control Head S Reel 5. X value adjustment driver hole Adjusting section for the Tension Arm position D2-4...
ELECTRICAL ADJUSTMENTS BEFORE MAKING ELECTRICAL FUNCTION FUNCTION ADJUSTMENTS OSD H BRI MAX OSD C BRI MIN Read and perform these adjustments when repairing the CUT OFF CONT CENT H.POSI CONT MAX circuits or replacing electrical parts or PCB assemblies. H.BLK L CONT MIN H.BLK R COL CENT...
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ELECTRICAL ADJUSTMENTS (TV SECTION) 2-7: VERTICAL POSITION 2-2: CONSTANT VOLTAGE Receive the monoscope pattern. Using the remote control, set the brightness and contrast Place the set in AV MODE without signal. to normal position. Using the remote control, set the brightness and contrast Activate the adjustment mode display of Fig.
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ELECTRICAL ADJUSTMENTS 2-10: OSD HORIZONTAL Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) Fig. 2-4 00 OSD 2-13: COLOR CENTER Receive the color bar pattern.
ELECTRICAL ADJUSTMENTS 2-14: CONTRAST MAX Activate the adjustment mode display of Fig. 1-1 and press the channel button (21) on the remote control to select "CONT MAX". Press the LEFT/RIGHT button on the remote control until the contrast step No. becomes "70". Receive a broadcast and check if the picture is normal.
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ELECTRICAL ADJUSTMENTS 3-3: STATIC CONVERGENCE 3. PURITY AND CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.
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ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) AC IN CD002 DEFLECTION PCB CD1704 CP601 TP4201 TP401 CP802A VCR DECK CD1703 FB401 CD807 CP1704 DVD DECK CD604 CD808 CP8001 DVD DECK VR404 CP404 CP1702 CP602 VR1701 CP001 CP4502 CP603 CP8002 SPEAKER...
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DVD BLOCK DIAGRAM FLASH 16M 64M SDRAM USB CONNECTOR IC4007 IC4005 CP5903 SST39VF1601- M12L64164A-7TG USB_DP 70-4C-EKE USB_DN POWER SW HA0~HA20, IC5901 DVD IN/OUT REG+1.8V SDA0~SDA11 RT9702-PB HD0~HD15 IC4004 CD4002 BA00BC0WFP-E2 DVD LOADER AT+5.2V DM3S DVD/CD, DVD_LD, CD_LD, VC AT+5.2V RF, A, B, C, D, E, F , DVD/CDPD Pick up P.CON+3.8V P.CON+A5V...
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Hi-Fi/DEMODULATOR BLOCK DIAGRAM Hi-Fi/AUDIO/HEAD AMP/DEM IC IC5501 AN3663FBP AUDIO_OUT_R AUDIO_OUT_L DVD IN/OUT DVD_A_OUT_R DVD_A_OUT_L INPUT SW FRONT_A_IN_R FRONT_A_IN_L IN/OUT REAR_A_IN_R HF_COM REAR_A_IN_L OUTPUT Y/C/AUDIO/ HEAD AMP VCO-FO LOGIC DIGITAL TUNER_AUDIO COMB/FILTER FM LIM Y/C_AUDIO NORMAL_A NOISE BLOCK REDUCTION V. REC_ST-H HIFI_ENV HIFI_H.SW MICON...
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DIGITAL COMB/FILTER BLOCK DIAGRAM P.CON+5V P.CON+12V REGULATOR COMB_FSC Q1502 P.CON+8V BUFFER Y/C_VIDEO-Y CHROMA/IF AT+30V COMB FILTER IC SW_C IC1501 LA76606M-TLM-E DVD_Y/C-C DVD IN/OUT AV SW IC IC1502 MM1501XNRE DVD_VIDEO Q1501 BUFFER Q1503 BUFFER AV SW IC IC1504 MM1501XNRE Y/C_VIDEO Y/C/AUDIO/ Y/C/AUDIO/ TUNER VIDEO HEAD AMP...
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DVD IN/OUT BLOCK DIAGRAM DVD_H CP8001 AV SW1 MICON 5V (USB) DVD_RESET 5V (USB) USB+5V P.CON+6V P.CON+6V_DH REGULATOR P.CON+5V_D P.CON+A5V DVD+3.8V DVD+3.8V DVD+3.8V P.CON+12V SPDIF ZERO IN/OUT SPDIF-134 AUDIO SW IC IC8001 MM1501XNRE AUDIO_OUT_L Q8006, Q8007 AUDIO_OUT_R Hi-Fi/ ZERO MUTE SW DEMODULATOR DVD_A_OUT_L CP8002...
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REGULATOR BLOCK DIAGRAM Q3003 AT+5V OUT AT+5V Q3014 BACKUP+5V BACKUP+5V DVD_H MICON AT+12V VCR_POWER_H P.CON+5V_C P.CON+5V OUT IC P.CON+5V_D OUT IC P.CON+5V_A OUT IC P.CON+6V_D OUT IC IC3001 IC3003 IC3004 IC3002 KIA278R05PI KIA278R05PI KIA278R05PI KIA278R06PI P.CON+5V IN/OUT AT+5V P.CON+8V Q3001 UNREG+8V BUFFER P.CON+5V...
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TV BLOCK DIAGRAM MOTOR+12V CHROMA/IF MOTOR+12V Q1702 RELAY REGULATOR DRIVE UNREG+8V UNREG+5V DEGAUSS RELAY RY1701 DEGAUSS_H MICON POWER_FAIL L1703 DEGAUSS COIL D1705, D1706, D1710, D1711 Q406 AC IN TRANSFORMER CURRENT DET F1701 SWITCHING T1701 FEED BACK SWITCHING FEED BACK IC1702 IC1701 KIA431A-AT PS2561AL1-1-V(W)
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PRINTED CIRCUIT BOARDS LOADING MOTOR (INSERTED PARTS) LOADING MOTOR (CHIP MOUNTED PARTS) SOLDER SIDE SOLDER SIDE CD2302 SOLDER SIDE D D0 0 CD2301 M2601 M2602 F-10...
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WAVEFORMS MPEG/MICON/DSP/RF_AMP AUDIO/VIDEO Y/C/AUDIO/HEAD AMP 10ns 500 s 20 s 100mV 500mV 1.0V 500 s 20 s 500mV 20mV 1.0V 10 s 20ns 1.0V 100mV 1.0V 100 s 200ns 1.0V 200mV 2.0V MEMORY 10 s 20 s 500mV 200mV NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
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WAVEFORMS MICON DEFLECTION DEFLECTION 10ms 20 s 20ms 200V 2.0V MICON POWER ON 10ms 50 s 2.0V 2.0V SOUND AMP/SURROUND POWER ON POWER ON 50 s 10ms 200mV 2.0V DEFLECTION DVD IN/OUT 10ms 50 s 0.5V 5.0V 2.0V Hi-Fi/DEMODULATOR CHROMA/IF POWER ON POWER ON 20 s...
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WAVEFORMS DIGITAL COMB/FILTER CRT/OPERATION POWER ON POWER ON 20 s 20 s 20 s 1.0V 0.5V POWER ON POWER ON 20 s 0.5ms 20 s 0.5V 1.0V CHROMA/IF POWER ON POWER ON 20 s 20 s 10ms 0.5V 1.0V POWER ON POWER ON 0.5 s 50 s...
CHASSIS EXPLODED VIEW (TOP VIEW) CD1501 M2003 UN4001 H5002 H5001 CD1502 M101 NOTE: Applying positions AA for the grease are displayed for this section. CLASS MARK Check if the correct grease is applied for each position. GREASE I2-1...
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CHASSIS EXPLODED VIEW (BOTTOM VIEW) M2001 CD1501 CD1502 NOTE: Applying positions AA for the grease are displayed for this section. CLASS MARK Check if the correct grease is applied for each position. GREASE I2-2...
DVD DECK EXPLODED VIEW Cannot supply separately. If the repair is needed, replace the LOADER SUB ASS'Y. M2603 PCB610 (LOADING MOTOR PCB ASS'Y) CD2302 CD2301 PCB640 CD2001 (SW PCB ASS'Y) Do not replace the parts. Because, minute adjustments are needed if this condition is disassembled further more.