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, iPod Digital Signal Processor, Nile-Tcon, Tuner V-Board Remote Receiver, LED TC-Board T-CON P-Board Power (AC/DC), DC-DC Non serviceable P-Board should be exchanged for service. Control Panel Assy Control Button, Power switch Non serviceable...
4 Specifications Power Source AC 110-127 V, 60 Hz Power Consumption Maximum 130 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) 2,073,600 (1,920 (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...
Page 9
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.
Page 13
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.
Page 14
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 bushing of the AC cord from the AC cord 2. Remove the 4 screws. bracket. 3.
7.4. P-Board 7.5. Side AV bracket 1. Remove the 5 screws (C). 1. Remove the Metal side AV bracket. 2. Remove the 1 screw (D). 3. Disconnect the connectors (CNAC, CN01, CN02 and P2). 4. Remove the P-Board. 2. Remove the 1 screw. 5.
7.6. A-Board 7.7. Control panel 1. Remove the 4 screws. 1. Disconnect the connector (K1). 2. Disconnect the connectors (A03, A04, A10, A11 and 2. Remove the control panel. A21). 3. Remove the A-Board. 7.8. Speaker 4. Remove the A-Board barrier. 1.
7.9. Metal bracket bottom 7.10. TC-Board 1. Remove the 4 screws (E). 1. Remove the 2 screws. 2. Remove the 2 screws (F). 2. Disconnect the connectors (TC01, TC04, TC05 and 3. Remove the Metal bracket bottom. TC06). 3. Remove the TC-Board. 4.
7.11. Metal support 7.12. LCD Panel 1. Remove the 4 screws. 1. Remove the LCD panel. 2. Remove the Metal support top. 3. Remove the 8 screws. 4. Remove the Metal support corner. 5. Remove the 1 screw. 6. Remove the Metal support side. 7.
8 Measurements and Adjustments 8.1. VCOM Adjustment (Flicker Adjustment) 8.1.1. General information: When replacing LCD panel, TC board (T-CON) or both, [VCOM] Adjustment have to be done. Data for VCOM Adjustment is different depend on the LCD panel and the data is stored in TC board. Adjustment procedures are as follows.
8.2. Voltage chart of A-board VOLTAGE TEST POINT SPECIFICATION (Reception state) STB3.3V TP4716 3.3 ± 0.16 V SUB5V TP4724 5 ± 0.25 V PANEL12V TP5413 12 ± 0.6 V SOUND15V TP2765 18 ± 2 V TP2768 6.1 ± 0.3 V SUB6V TP2767 6.1 ±...
9 Block Diagram 9.1. Main Block Diagram DIGITAL SIGNAL PROCESSOR TMDS DATA HDMI3 (SIDE) TMDS DATA HDMI I/F HDMI2 RECEIVER SD CARD DATA TMDS DATA SD CARD SD CARD DATA HDMI1 SLOT IFD_OUT FRONT END Nile-TCON SIF_OUT PROCESSOR DDR2 TUNER EEPROM IIC2 STB5V...
9.2. Block (1/3) Diagram DIGITAL SIGNAL PROCESSOR D2500A SN2500 POWER LED C.A.T.S. R_LED_ON POWER LED(R) SENSOR POWER LED C.A.T.S. C.A.T.S. RM2500 REMOTE RECEIVER REMOTE IN REMOTE IN SUB5V REMOTE C.A.T.S. SENSOR SUB+5V RECEIVER STB3.3V STB+3.3V +3.3V CONTROL PANEL ASSY KEYSCAN1 KEYSCAN1 OPERATION KEYS KEYSCAN3...
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 (1)
11.11. A-Board (10/13) Schematic Diagram A-BOARD TXN/A10QAMS (10/13) USA model PC MODEL JK2101 K1U812A00001 JK2108A AV TERMINAL K1FY315A0006 PC IN U_AV1_V/A_AV2_V__TERMINAL U_AV1_L/A_AV2_L__TERMINAL R3124 R3015 TP3101 PC_R_TERMINAL U_AV1_R/A_AV2_R__TERMINAL R3125 R3016 TP3102 Y-SW PC_G_TERMINAL U_NONUSE_A_AV1_YSW__TERMINAL R3126 PDP_U_YPBPR2_Y/LCD_U_YPBPR1_Y/A_AV1_Y__TERMINAL R3017 TO 5/13 TO 5/13 TP3103 PC_B_TERMINAL PDP_U_YPBPR2_PB/LCD_U_YPBPR1_PB/A_AV1_PB__TERMINAL...
12.2. V-Board V-BOARD (FOIL SIDE) TXN/V10QMMM T P 2 5 0 7 T P 2 5 0 0 T P 2 5 0 2 TP2507 TP2500 T P 2 5 0 1 TP2502 TP2501 TP2506 T P 2 5 0 4 P b F T P 2 5 0 3 TP2503...
13.2. Electrical Replacement Parts List 13.2.1. Replacement Parts List Notes...
Page 64
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 C2309,10 F1H1A225A051 C 22UF, 50V Description C2501 F2G0J470A019 E 47UF 6.3V C2502 F1G1C103A116 C 0.010UF, K, N0AE4JJ00007 CIRCUIT BOARD P PAVCA TXN/A10QAMS...
Page 65
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C5706 F1G1E103A123 C 0.010UF, K, C8069 F1G1C104A116 C 0.10UF, K, 16V C8070 F1G1H102A730 C 1000UF, 50V C5707 F1G1C104A116 C 0.10UF, K, 16V C8071 F1G1C104A116 C 0.10UF, K, 16V C5708,09...
Page 66
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C8851,52 ECJ1VB1A105K C 0.01UF, Z, 10V C9273 F1G1H151A731 C 150PF, K, 50V C9001 F1H1H103A970 C 0.001UF, K, C9274 F1H1H223A970 C 0.22UF, K, 50V C9275 F1K1E106A136 C 10UF, Z, 25V...
Page 67
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description FL2102-04 J0HABB000004 LC FILTER L8500,01 J0JHC0000045 CHIP INDUCTOR FL4201-03 EXC28CE201U FILTER L9003 J0JHC0000045 CHIP INDUCTOR FL4804,05 EXC28CE201U FILTER L9004 J0JHC0000046 CHIP INDUCTOR FL9001-08 EXC28CE900U...
Page 68
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R2260 D0GA303JA015 M 30K OHM J PAVCA R2759-61 D0GA101JA015 M 100 OHM, 0.063W J,0.063W R2265 D1BB75R0A055 M 75 OHM, 1/10W R2763,64 D0GA473JA015 M 47KOHM, J,0.063W...
Page 69
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R3265 D0GAR00Z0001 C 0 OHM, 0.063W R4802 EXB2HV220JV RESISTOR ARRAY R3267-71 D0GAR00Z0001 C 0 OHM, 0.063W R4803 D0GA472JA015 M 4.7KOHM, J,0.063W R3272 J0JBC0000116 COIL...
Page 70
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R5680 D1BA2201A014 M2.2 KOHM, R8099 ERJ2GEJ102X M 1K OHM J 1/4W 0.063W R8100 D0GA223JA015 M 22K OHM J R5681 D1BB4702A087 M 47KOHM, 1/10W PAVCA...
Page 71
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R8531-33 D0GA680JA015 M 47 OHM, R9119 D1BB2402A055 M 24KOHM, 1/10W J,0.063W R9125,26 D0GA101JA015 M 100 OHM, R8538 D0GA472JA015 M 4.7KOHM, J,0.063W J,0.063W R9130...
Page 72
Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R9294 D1BA1003A014 M 100KOHM, PAVCA X9001 H0J270500113 CRYSTAL 0.063W X9201 H2D100500004 CRYSTAL R9297 D0GAR00Z0001 C 0 OHM, 0.063W R9298,99 D1BA20R0A014 M 20 OHM, 0.063W PAVCA...