1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor [chip] components.
2.2. About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
3 Service Navigation 3.1. Service Hint Board Name Function A-Board Speaker out, AV Terminal, HDMI in, SD Card, PC in, Digital Signal Processor, Nile-Tcon, Tuner V-Board Remote Receiver, LED P-Board Power (AC/DC), DC-DC Control Panel Assy Control Button, Power switch Non serviceable Control Panel Assy should be exchanged for service.
4 Specifications Power Source AC 110-127 V, 60 Hz Power Consumption Maximum 149 W Standby Condition 0.3 W Display panel Aspect Ratio 16:9 Visible screen size 37 inch class (37.0 inches measured diagonally) (W × H × Diagonal) 32.2 inch × 18.1 inch × 37.0 inch (819 mm × 460 mm × 940 mm) 1,049,088 (1,366 (W) ×...
5 Service Mode 5.1. How to enter into Service Mode While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. 5.1.1. Key command [1] button...Main items Selection in forward direction [2] button...Main items Selection in reverse direction [3] button...Sub items Selection in forward direction [4] button...Sub items Selection in reverse direction...
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Contents of adjustment mode 5.1.2. • Value is shown as a hexadecimal number. • Preset value differs depending on models. • After entering the adjustment mode, take note of the value in each item before starting adjustment. Main item Sub item Sample Data Remark ADJUST...
5.2. SRV-TOOL 5.2.1. How to access 1. Select [SRV-TOOL] in Service Mode. 2. Press [OK] button on the remote control. 5.2.2. Display of SOS History SOS History (Number of LED blinking) indication. From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment. This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory ship- ment setting].
5.3. Hotel mode 1. Purpose Restrict a function for hotels. item Function 2. Access command to the Hotel mode setup menu Mode Select hotel mode off/on In order to display the Hotel mode setup menu, please Input Select input signal modes. enter the following command (within 2 second).
5.4. Data Copy by SD Card 5.4.1. Purpose (a) Board replacement (Copy the data when exchanging A-board): When exchanging A-board, the data in original A-board can be copied to SD card and then copy to new A-board. (b) Hotel (Copy the data when installing a number of units in hotel or any facility): When installing a number of units in hotel or any facility, the data in master TV can be copied to SD card and then copy to other TVs.
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5.4.3. Data copy from TV set to SD Card 1. Turn on the TV set. 2. Insert SD card with a startup file (pwd file) to SD slot. On-screen Display will be appeared according to the startup file automatically. 3. Input a following password for (a) or (b) by using remote control. (a) For Board replacement : 2770 (b) For Hotel : 4850 Data will be copied from TV set to SD card.
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5.4.4. Data copy from to SD Card to TV set 1. Turn on the TV set. 2. Insert SD card with Data to SD slot. On-screen Display will be appeared according to the Data folder automatically. 3. Input a following password for (a) or (b) by using remote control. (a) For Board replacement : 2771 (b) For Hotel : 4851 Data will be copied from SD card to TV set.
6 Troubleshooting Guide Use the self-check function to test the unit. 1. Checking the IIC bus lines 2. Power LED Blinking timing 6.1. Check of the IIC bus lines 6.1.1. How to access Self-check indication only: Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.
6.2. Power LED Blinking timing chart 1. Subject Information of LED Flashing timing chart. 2. Contents When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
6.3. No Power First check point There are following 2 states of No Power indication by power LED. 1. No lit 2. Red is lit then turns red blinking a few seconds later. (See 6.2.)
7 Disassembly and Assembly Instructions 7.1. Pedestal 7.3. AC cord 1. Lay down the unit so that the rear cover faces upward. 1. Remove the screw and Remove the AC cord bracket. 2. Remove the 4 screws. 2. Remove the bushing of the AC cord from the AC cord 3.
7.5. Side AV bracket 7.7. Control panel 1. Remove the 1 screw (D). 1. Disconnect the connector (K1). 2. Remove the 1 screw (E). 2. Remove the 2 screws. 3. Remove the side AV bracket. 3. Remove the control panel. 7.6.
7.9. Metal bracket A-Board 3. Remove the Metal bracket P-Board-S. 4. Remove the clampers. 1. Remove the 4 screws. 2. Remove the Metal bracket A-Board L/S. 7.10. Bracket IP 1. Remove the 3 screws. 2. Remove the Bracket IP. 7.11. VESA metal 1.
7.12. Metal support 7.14. LCD Panel 1. Remove the 6 screws. 1. Remove the 4 screws and remove the Metal bracket LCD 2. Remove the Metal supports (L, R). side. 2. Remove the LCD panel. 7.13. Metal bracket 1. Remove the 4 screws (F). 2.
8 Measurements and Adjustments 8.1. Voltage chart of P-board VOLTAGE TEST POINT SPECIFICATION (Reception state) TP7952, TP7953 18 ± 2 V DTV12V TP7954, TP7955 12.2 ± 0.6 V TUNER6V TP7956 6.1 ± 0.3 V 8.2. Voltage chart of A-board VOLTAGE TEST POINT SPECIFICATION (Reception state)
9 Block Diagram 9.1. Main Block Diagram DIGITAL SIGNAL PROCESSOR TMDS DATA HDMI1 TMDS DATA HDMI I/F HDMI2 RECEIVER SD CARD DATA SD CARD SD CARD DATA SLOT IFD_OUT FRONT END Nile-TCON SIF_OUT PROCESSOR DDR2 TUNER EEPROM STB5V STB3.3V SUB5V ANALOG-ASIC SUB5V DET (LED:5TIMES)
9.2. Block (1/2) Diagram DIGITAL SIGNAL PROCESSOR POWER LED REMOTE RECEIVER C.A.T.S. SENSOR D2500 SN2501 POWER LED C.A.T.S. R_LED_ON POWER LED(R) SENSOR C.A.T.S. C.A.T.S. RM2501 REMOTE IN REMOTE IN SUB5V REMOTE RECEIVER SUB+5V STB3.3V STB+3.3V SOUND15V KEYSCAN1 KEYSCAN1 CONTROL PANEL ASSY KEYSCAN3 KEYSCAN3 POWER SUPPLY...
10 Wiring Connection Diagram 10.1. Caution statement. Caution: Please confirm that all flexible cables are assembled correctly. Also make sure that they are locked in the connectors. Verify by giving the flexible cables a very slight pull. 10.2. Wiring...
12 Printed Circuit Board 12.1. P-Board P-BOARD (FOIL SIDE) TXN/P10QNM R L 7 1 0 3 R L 7 1 0 2 R 7 0 3 0 Q 7 0 3 2 R L 7 1 0 1 D 7 0 4 0 C 7 9 5 0 C 7 9 5 1 D 7 0 4 1...
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P-BOARD (COMPONENT SIDE) TXN/P10QNM R L 7 1 0 1 R L 7 1 0 2 R L 7 1 0 3 Z A 7 0 0 2 R 7 5 0 2 J 2 1 7 J 3 0 4 Z A 7 0 0 1 Z A 7 0 0 0 C 7 5 1 4...
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A-BOARD (COMPONENT SIDE) TXN/A10QYLS JS1000 JS1001 JS1002 R4621 JS1003 JS1004 JS1005 A 1 3 JS1006 JS1007JS1008 G ( G A ) H ( H A ) J ( J A ) JS1010 JS1013 JS1022 JS1025 JS1011 JS1014 JS1023 JS1026 L8501 K ( K A ) L ( L A ) M ( M A )
13.2. Electrical Replacement Parts List 13.2.1. Replacement Parts List Notes...
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13.2.2. Electrical Replacement Parts List Safety Ref. No. Part No. Part Name & Pcs Remarks Description Safety Ref. No. Part No. Part Name & Pcs Remarks C2502 F1G1C103A116 C 0.010UF, K, Description C2505 F1G1A104A053 C 0.01UF, K, 10V TXN/A10QYLS CIRCUIT BOARD A (RTL) C2506 F1J1A106A087 C 0.010UF, K,...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C4854 F1J1A106A087 C 0.010UF, K, C7505,06 F2A1E681A100 E 680UF 25V C7510 F1J1H103A834 C 0.01UF, K, 50V C4855-59 F1G1C104A077 C 0.10UF, K, 16V C7514 F2A1E681A100 E 680UF 25V C4863,64...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C8046 F1J0G2260001 C 0.001UF, 6.3V C8342,43 F1G1C104A077 C 0.10UF, K, 16V C8047 F1G1C104A077 C 0.10UF, K, 16V C8349 F1G1H1020008 C 1000UF, 50V C8048 F1G1H1020008 C 1000UF, 50V...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description D7408 B0EAKT000017 DIODE IC8502 TVRR300AGS PAVCA D7503 B0HESM000001 DIODE IC8503 TVRR302S PAVCA D7504 B0BA01400009 ZENER DIODE IC8850 C0DBGYY00203 IC PAVCA D7552 B0JBSL000031 DIODE...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description Q4803 B1ABCF000231 TRANSISTOR R2314 D0GA303JA015 M 30K OHM J PAVCA 0.063W Q4804,05 B1ADCE000022 TRANSISTOR R2316 D0GA303JA015 M 30K OHM J PAVCA Q4806 DSA2001S0L...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R4253 D0GA100JA015 M 10 OHM, R4822 D0GA472JA015 M 4.7KOHM, J,0.063W J,0.063W R4502,03 D0GA473JA015 M 47 OHM, R4830,31 ERJ2GEJ104 M 100KOHM, J,0.063W J,0.063W...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R4995 ERJ2GEJ103 M 10KOHM, R7031 D0GD821JA036 M 820 OHM,J PAVCA J,0.063W 0.25W R5605 D0GA223JA015 M 22K OHM J R7084 D0GAR00Z0001 C 0 OHM, 0.063W 0.063W...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R7602 D0GD151JA036 M 150 R8000,01 ERJ2GEJ102X M 1K OHM J 1/4W OHM,J,0.25W R8003 D1BA3010A014 M103 OHM, 1/10W PAVCA R7603 D0GDR00Z0002 M 0 OHM, 1/10W R8004...
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Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R8318 D0GA223JA015 M 22K OHM J R9919 D0GA272JA015 M 2.7KOHM, 0.063W J,0.063W R8319 D0GA393JA015 M R9922 D0GA100JA015 M 10 OHM, 39KOHM,J,0.063W J,0.063W R8320...