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FUNAI LT5-M32BB, Руководство по обслуживанию

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8-9

A73F2SCF

Function Schematic Diagram

CN102

1

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2

---

3

3.4

4

3.4

5

3.4

6

0

VOLTAGE  CHART

Pin No.

Voltage

Содержание LT5-M32BB

Страница 1: ...SERVICE MANUAL 32 COLOR LCD TELEVISION LT5 M32BB...

Страница 2: ...5 1 Electrical Adjustment Instructions 6 1 Block Diagrams 7 1 Schematic Diagrams CBA s and Test Points 8 1 Waveforms 9 1 Wiring Diagram 10 1 Exploded View 11 1 Mechanical Parts List 12 1 Electrical P...

Страница 3: ...Unit Nominal Limit 1 RECEIVED FREQ RANGE 60dBm 45ch 1 kHz kHz 1000 900 500 167 2 INPUT DYNAMIC RANGE mix max 1 VHF HIGH 7ch UHF 45ch dBm dBm 82 5 2 81 1 2 79 9 10 79 3 10 3 C N PERFORMANCE 1 VHF HIGH...

Страница 4: ...tly below these specifications Limit specifications represent the absolute worst condition that still might be considered acceptable In no case should a unit fail to meet limit specifications Descript...

Страница 5: ...terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2 megohm an abnormality exists that must be corrected before the instrum...

Страница 6: ...near thermally hot parts be sure that leads and components do not touch thermally hot parts c the AC supply d high voltage and e antenna wiring Always inspect in all areas for pinched out of place or...

Страница 7: ...PVC tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before soldering F Observe tha...

Страница 8: ...and externally exposed accessible parts RF terminals an tenna terminals video and audio input and output ter minals microphone jacks earphone jacks etc Measuring Method Power ON Insert load Z between...

Страница 9: ...the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Relea...

Страница 10: ...ins of the flat pack IC you can remove it easily Fig S 1 3 2 Affix the wire to a workbench or solid mounting point as shown in Fig S 1 5 3 While heating the pins using a fine tip soldering iron or hot...

Страница 11: ...ur 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 M that is properly grounded to remove any sta...

Страница 12: ...r Cabinet D1 10 S 4 4 S 5 5 Function CBA D1 D5 3 S 6 CN3501 6 Chassis Bracket D2 8 S 7 7 Power Supply CBA D2 D5 4 S 8 CN501 CN701 CN702 CN4501 CN4502 CN4503 CN4504 CLN51B 8 Jack Holder D D2 S 9 S 10 2...

Страница 13: ...4 2 A73F2DC 4 Rear Cabinet 3 Stand Cover 2 Stand Hinge 1 Stand Base Plate S 2 S 3 S 2 S 3 5 Function CBA S 1 S 4 S 4 S 4 S 5 S 4 S 6 S 5 Fig D1...

Страница 14: ...older D 10 Shield Box Top 11 Digital Main CBA Unit 6 Chassis Bracket S 8 S 15 S 13 S 14 S 7 S 7 S 7 7 Power Supply CBA S 8 S 9 S 10 S 11 S 12 S 8 12 DVB T Module CBA Unit Shield Box Bottom S 16 9 Shie...

Страница 15: ...4 4 A73F2DC 15 Inverter CBA 13 Jack Holder A S 17 S 19 S 19 S 18 14 Jack CBA 17 Panel Holder S 20 S 20 S 21 S 20 S 21 S 20 16 Junction CBA Desolder S 19 S 19 S 19 S 18 Fig D3...

Страница 16: ...4 5 A73F2DC 19 LCD Module Assembly 21 Speaker 22 Front Cabinet S 23 S 22 S 22 S 22 S 23 S 25 S 25 21 Speaker 20 IR Sensor CBA S 25 S 25 S 24 18 T CON CBA Shield Plate Fig D4...

Страница 17: ...o LCD Module Assembly Jack CBA IR Sensor CBA CN3501 CN3302 CL552B CN552 Junction CBA T CON CBA CN9002 CN9001 CN9003 To LCD Module Assembly CN9005 To Speaker CN701 CN702 CLN51A CN601 CN301 CN302 CN303...

Страница 18: ...off 2 To enter the service mode while pressing MENU button press STANDBY ON button on the TV unit To cancel the service mode press STANDBY ON button on the remote control 3 Press button on the remote...

Страница 19: ...ancel the service mode press STANDBY ON button on the TV unit 1 Initial Setting General Enter the Service mode Set the each initial data as shown on table 1 below Table 1 Initial Data ITEM BUTTON on t...

Страница 20: ...142 CNT 130 CLR R 160 CLR B 160 SHR 112 BRIGHT 0 255 NORMAL 0 176 DARK 0 112 LAST POWER ON COR C D S 1 1 128 COG C D S 1 2 128 COB C D S 1 3 128 DR C D S 1 4 128 ITEM BUTTON on the remote control DAT...

Страница 21: ...buttons on the remote control unit so that the color analyzer value becomes minimum 4 Auto Calibration Component Purpose To bring the color adjustment of each component into standard alignment Sympto...

Страница 22: ...again and adjust repeatedly until both values are within specification 6 YUV APL 70 Press 6 button to select DB 2 C D S 2 for Blue adjustment Press 4 button to select DR 2 C D S 2 for Red adjustment W...

Страница 23: ...ST OUT 16 4 6 9 10 A6 B6 SCL SDA G20 DTV ON H H23 DTV RESET H22 DTV BUS CONT H21 DTV TXD H20 DTV RXD J23 DTV WAKEUP SCL SDA L22 BUS OPEN XOUT XIN X3502 27MHz OSC AC10 AB10 IC802 TONE CONTROL SCL SDA 1...

Страница 24: ...20 CN303 CN4503 TU VIDEO TU VIDEO 20 R 3 Pb 5 4 21 19 B 1 23 CN302 CN4502 G 22 CVBS Y 18 Pr C 20 2 6 4 Pr C 12 28 IC7701 VIDEO SELECTOR 10 16 14 12 55 53 51 69 73 71 24 26 63 67 65 22 VIDEO SELECTOR J...

Страница 25: ...O R IN JK4101 COMPONENT AUDIO L IN1 COMPONENT AUDIO R IN1 JK7102 IC7701 AUDIO SELECTOR IC3501 DIGITAL SIGNAL PROCESS IC3104 AUDIO D A CONVERTER D A CONVERTER HDMI SCLK HDMI SDATA HDMI MCLK L CH R CH L...

Страница 26: ...L 7 17 AUDIO R 8 16 AMP STBY 4 20 AMP MUTE 5 19 CLN51B CLN51A CN4502 CN302 SP L 11 11 SP L 12 12 CN7001 CN701 AUDIO L OUT 38 2 AUDIO R OUT 39 1 SP R 1 1 SP R 2 2 IC802 TONE CONTROL AUDIO L OUT AUDIO...

Страница 27: ...I MCLK 110 144 AUDIO CODEC IIC I F SDA SCL IC3101 HDMI MEMORY 5 6 SDA SCL IC3102 HDMI MEMORY IC3501 DIGITAL SIGNAL PROCESS 5 6 SDA SCL 30 29 BUFFER Q3106 BUFFER Q3105 IIC I F 7 9 4 6 1 3 10 12 16 15 H...

Страница 28: ...1002 Q1003 Q1001 T1050 Q1100 Q1101 Q1102 Q1103 Q1250 Q1251 Q1252 Q1253 3 1 4 7 8 6 5 2 T1100 3 1 4 7 8 6 5 2 T1150 3 1 4 7 8 6 5 2 T1200 T501 TO POWER SUPPLY BLOCK DIAGRAM ACL HOT GND 3 1 4 7 8 6 5 2...

Страница 29: ...2 3 JS612 Q650 Q651 Q652 SW 5V Q630 6 7 14 10 12 18 16 4 2 3 20 32V 15V P ON 1 5V IC4505 1 5V REG P ON 1 8V IC4506 1 8V REG P ON 3 3V DTV ON H AL3 3V 5V 12V LCD IC4504 3 3V REG IC4508 3 3V REG CN4104...

Страница 30: ...in the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts that do not have the same saf...

Страница 31: ...ed 2 To maintain original function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Volt...

Страница 32: ...The voltage for parts in hot circuit is measured using hot GND as a common terminal CN301 1 0 2 12 1 3 12 1 4 3 4 5 0 6 5 2 7 5 2 8 9 0 10 5 3 11 5 3 12 5 3 13 0 14 3 4 15 0 16 2 9 17 0 18 15 9 19 0...

Страница 33: ...8 4 A73F2SCP2 Power Supply 2 3 Schematic Diagram CN302 1 0 2 2 4 3 3 4 4 0 5 3 3 6 0 7 4 5 8 4 5 9 0 10 3 3 11 0 12 13 14 15 0 16 17 0 18 2 4 19 0 20 2 4 21 0 22 2 4 23 0 VOLTAGE CHART Pin No Voltage...

Страница 34: ...ic Diagram CN303 1 2 4 2 0 3 2 4 4 0 5 2 5 6 0 7 5 8 5 9 0 10 0 11 5 2 12 5 2 13 0 14 3 3 15 3 2 16 0 17 2 6 18 2 6 19 0 20 2 3 21 0 22 0 6 23 0 6 CN304 1 0 2 0 3 0 4 0 6 5 0 6 2 4 7 0 8 2 3 9 0 VOLTA...

Страница 35: ...common terminal CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F501 is blown check to see that all components in the power supply circuit are...

Страница 36: ...8 7 Jack 1 2 Schematic Diagram A73F2SCJ1...

Страница 37: ...8 8 A73F2SCJ2 Jack 2 2 Schematic Diagram...

Страница 38: ...8 9 A73F2SCF Function Schematic Diagram CN102 1 2 3 3 4 4 3 4 5 3 4 6 0 VOLTAGE CHART Pin No Voltage...

Страница 39: ...8 10 IR Sensor Schematic Diagram A73F2SCIR...

Страница 40: ...8 11 Digital Main 1 6 Schematic Diagram A73F2SCD1...

Страница 41: ...chematic Diagram A73F2SCD2 1 NOTE The order of pins shown in this diagram is different from that of actual IC3501 IC3501 is divided into four and shown as IC3501 1 4 IC3501 4 4 in this Digital Main Sc...

Страница 42: ...chematic Diagram A73F2SCD3 1 NOTE The order of pins shown in this diagram is different from that of actual IC3501 IC3501 is divided into four and shown as IC3501 1 4 IC3501 4 4 in this Digital Main Sc...

Страница 43: ...8 14 Digital Main 4 6 Schematic Diagram A73F2SCD4...

Страница 44: ...chematic Diagram A73F2SCD5 1 NOTE The order of pins shown in this diagram is different from that of actual IC3501 IC3501 is divided into four and shown as IC3501 1 4 IC3501 4 4 in this Digital Main Sc...

Страница 45: ...chematic Diagram A73F2SCD6 1 NOTE The order of pins shown in this diagram is different from that of actual IC3501 IC3501 is divided into four and shown as IC3501 1 4 IC3501 4 4 in this Digital Main Sc...

Страница 46: ...e a hot chassis ground is present in the power supply circuit an isolation transformer must be used Also in order to have the ability to increase the input slowly when troubleshooting this type power...

Страница 47: ...using hot GND as a common terminal Because a hot chassis ground is present in the power supply circuit an isolation transformer must be used Also in order to have the ability to increase the input sl...

Страница 48: ...8 19 BA73F0F01032 Jack CBA Top View...

Страница 49: ...8 20 WF1 PIN 10 OF CN7001 WF2 PIN 12 OF CN7001 WF5 PIN 14 OF CN7001 WF4 PIN 16 OF CN7001 WF6 PIN 18 OF CN7001 WF3 PIN 20 OF CN7001 WF7 PIN 8 OF CN7001 Jack CBA Bottom View BA73F0F01032...

Страница 50: ...it are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail Because a hot chassis ground is present in the pow...

Страница 51: ...uit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail Because a hot chassis ground is present in the po...

Страница 52: ...8 23 Function CBA Top View Function CBA Bottom View BA73F0F01022 2...

Страница 53: ...8 24 BA73F0F01042 Junction CBA Top Bottom View BA73F0F01022 3 IR Sensor CBA Top View IR Sensor CBA Bottom View...

Страница 54: ...ed at Waveform check points Shown in Schematic Diagram S VIDEO Y 0 2V 20 s S VIDEO C 0 2V 20 s COMPONENT Y 0 2V 20 s 20 s COMPONENT Pr 0 2V 20 s COMPONENT Pb 0 2V 20 s Pin 20 of CN7001 WF3 CVBS 0 2V 2...

Страница 55: ...F5 Pin 14 of CN7001 WF6 Pin 18 of CN7001 AUDIO 0 5V 0 5ms WF7 Pin 8 of CN7001 20 s G 0 5V 20 s R 0 5V 20 s Input PAL Color Bar Signal with 1kHz Audio Signal WF4 WF7 Waveforms to be observed at Wavefor...

Страница 56: ...8 10 14 12 18 16 11 13 15 17 19 23 21 20 23 19 21 15 17 22 20 18 16 14 10 12 6 8 13 11 9 7 5 1 3 4 22 GND AL 3 3V GND P ON 5V P ON 5V NU 4V GND 4V 4V GND GND 2 5V 2 5V GND GND 15V 32V GND PROTECT2 PRO...

Страница 57: ...L4 L1 L9 L1 IR Sensor CBA Function CBA CLN801 CLN802 SP802 SP801 Power Supply CBA L4 B19 L9 L4 L9 B6 L9 B20 B11 L16 L11 A12 Jack CBA L16 L16 Junction CBA L1 L9 L1 L1 CL3302 B16 B16 S5 L16 L9 B34 A23...

Страница 58: ...11 2 A73F2PEX Packing S1 S2 S5 S4 S3 X1 X3 X5 Tape Packing Tape Some Ref Numbers are not in sequence Packing Tape Packing Tape FRONT Packing Tape X2 2 S16 S16...

Страница 59: ...1 WIRE ASSEMBLY FFC 39PIN 130MM UL28 WX1A73F0 102 CL7003 WIRE ASSEMBLY FFC 5PIN 130MM UL289 WX1A73F0 103 CLN102 WIRE ASSEMBLY 002 6PIN 185MM AWG26 WX1A71F3 002 CLN801 WIRE ASSEMBLY 2PIN 280MM UL1007 W...

Страница 60: ...ESTER FILM CAP PB FREE 0 01 F 100V J or CA2A103DT018 CAP POLYESTER FILM 0 01 F 50V J CA1J103SER04 C638 ELECTROLYTIC CAP 4700 F 10V M P 7 5 or CE1AMZNDL472 ELECTROLYTIC CAP 4700 F 10V M CE1AMZPDL472 C6...

Страница 61: ...K 2700pF 50V CHD1JK30B272 C869 CHIP CERAMIC CAP 1608 B K 2700pF 50V CHD1JK30B272 C870 CHIP CERAMIC CAP 1608 B K 0 1 F 50V CHD1JK30B104 C871 CHIP CERAMIC CAP 1608 B K 0 01 F 50V CHD1JK30B103 C872 CHIP...

Страница 62: ...H LLF3300TU003 Ref No Description Part No L805 INDUCTOR 22 H K 5FT LLARKBSTU220 L852 PCB JUMPER D0 6 P5 0 JW5 0T TRANSISTORS Q103 TRANSISTOR KTC3199 GR AT P or NQS4KTC3199P TRANSISTOR KTC3198 GR AT P...

Страница 63: ...661 CARBON RES 1 4W J 4 7k RCX4JATZ0472 R662 CARBON RES 1 4W J 4 7k RCX4JATZ0472 Ref No Description Part No R663 CHIP RES 1 10W J 3 3k or RRXAJR5Z0332 RES CHIP 1608 1 10W J 3 3k RRXA332YF002 R664 CHIP...

Страница 64: ...CHIP RES 1608 1 10W 0 or RRXAZR5Z0000 RES CHIP 1608 1 10W J 0 RRXA000YF002 MISCELLANEOUS B10 HEAT SINK PKH ASSEMBLY L3201UB 1EM420648 B11 HEAT SINK PKP ASSEMBLY L4200EA 1EM420855 Ref No Description Pa...

Страница 65: ...RXAJR5Z0101 RES CHIP 1608 1 10W J 100 RRXA101YF002 C7018 CHIP CERAMIC CAP 1608 CH J 33pF 50V CHD1JJ3CH330 C7019 CHIP CERAMIC CAP 1608 B K 0 047 F 50V CHD1JK30B473 C7020 CHIP CERAMIC CAP 1608 CH J 33pF...

Страница 66: ...6B or QD1B00EDZ5R6 DIODE ZENER SMD 015AZ5 6 Y QD1Y015AZ5R6 D7004 ZENER DIODE EDZTE61 5 6B or QD1B00EDZ5R6 DIODE ZENER SMD 015AZ5 6 Y QD1Y015AZ5R6 D7006 ZENER DIODE EDZTE61 5 6B or QD1B00EDZ5R6 DIODE Z...

Страница 67: ...HIP 1608 1 10W J 0 RRXA000YF002 R7021 CHIP RES 1 10W J 10k or RRXAJR5Z0103 RES CHIP 1608 1 10W J 10k RRXA103YF002 Ref No Description Part No R7022 CHIP RES 1 10W J 47k or RRXAJR5Z0473 RES CHIP 1608 1...

Страница 68: ...JR5Z0750 RES CHIP 1608 1 10W J 75 RRXA750YF002 R7704 CHIP RES 1 10W J 75 or RRXAJR5Z0750 RES CHIP 1608 1 10W J 75 RRXA750YF002 R7705 CHIP RES 1 10W J 100 or RRXAJR5Z0101 RES CHIP 1608 1 10W J 100 RRXA...

Страница 69: ...C CAP 100 F 35V M CA1G101SP085 Ref No Description Part No C1103 CHIP CERAMIC CAP 1608 B K 0 1 F 50V CHD1JK30B104 C1104 CHIP CERAMIC CAP 1608 CH J 390pF 50V CHD1JJ3CH391 C1105 CHIP CERAMIC CAP 1608 CH...

Страница 70: ...cription Part No DIODE SWITCHING HSS4148TE E QDTZ0HSS4148 D1110 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 DIODE SWITCHING HSS4148TE E QDTZ0HSS4148 D1111 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 D...

Страница 71: ...199 GR AT P or NQS4KTC3199P Ref No Description Part No TRANSISTOR KTC3198 GR AT P or NQS4KTC3198P TRANSISTOR 2SC1815 GR TE2 F T QQS12SC1815F Q552 TRANSISTOR KTC3199 GR AT P or NQS4KTC3199P TRANSISTOR...

Страница 72: ...IP 1608 1 10W J 10k RRXA103YF002 R1042 CHIP RES 1 10W J 3 9k or RRXAJR5Z0392 RES CHIP 1608 1 10W J 3 9k RRXA392YF002 Ref No Description Part No R1043 CHIP RES 1 10W J 3 9k or RRXAJR5Z0392 RES CHIP 160...

Страница 73: ...R1253 CHIP RES 1 10W J 33 or RRXAJR5Z0330 RES CHIP 1608 1 10W J 33 RRXA330YF002 Ref No Description Part No R1254 PCB JUMPER D0 6 P5 0 JW5 0T R1255 PCB JUMPER D0 6 P5 0 JW5 0T R1260 CARBON RES 1 4W J...

Страница 74: ...A121SB 00 LLBF00STU030 BC553 BEADS INDUCTOR FBR07HA121SB 00 LLBF00STU030 BC1000 PCB JUMPER D0 6 P5 0 JW5 0T BC1001 BEADS INDUCTOR FBR07HA121SB 00 LLBF00STU030 BC1002 BEADS INDUCTOR FBR07HA121SB 00 LLB...

Страница 75: ...other information is described in the service manual of the original LH7 M32BB A93F0FP model For the LT7 M32BB A93F1EP model the letter A93F1EP is printed on the Serial Number Label on the back of the...

Страница 76: ...MAIN CBA UNIT A93F1MMA 003 POWER SUPPLY CBA A93F1MPW 005 C208 Not used C209 Not used JK207 Not used R216 Not used R217 Not used Ref No Description Part No MECHANICAL PARTS A8 RATING LABEL A93F1EP S1...

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