Service Manual
Page 20
Check IC401, T401, D437 and peripheral circuit. Change V2301 (PANEL). TROUBLESHOOTING GUIDE THE PICTURE DOES NOT APPEAR No Does backlight shine? Yes Is there signal at pins 13, Yes 14, 16, 17, 19, 20, 22, 23, 25 and 26 of CP406 24V? Yes Connected CD2804. Check IC407 and peripheral circuit. E-3 Is there voltage at pins No 1, 2, 3, 4 and 5 of CP2804 5V? Yes No Is CD2804 connected? No Change DIGITAL PCB. Yes Is there voltage at pins 1, No 2, 3, 4 and 5 of CP2804?
Check IC401, T401, D437 and peripheral circuit. Change V2301 (PANEL). TROUBLESHOOTING GUIDE THE PICTURE DOES NOT APPEAR No Does backlight shine? Yes Is there signal at pins 13, Yes 14, 16, 17, 19, 20, 22, 23, 25 and 26 of CP406 24V? Yes Connected CD2804. Check IC407 and peripheral circuit. E-3 Is there voltage at pins No 1, 2, 3, 4 and 5 of CP2804 5V? Yes No Is CD2804 connected? No Change DIGITAL PCB. Yes Is there voltage at pins 1, No 2, 3, 4 and 5 of CP2804?
Service Manual
Page 29
.../BY# 3.4 A18 3.4 A17 3.4 A7 3.4 A6 3.4 A5 3.4 A4 3.4 A3 3.4 A2 3.4 A1 DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 OE# VSS CE# A0 R2802 10K 3.4 3.4 0 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 0 3.4 3.4 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 R2806 10K R2805...
.../BY# 3.4 A18 3.4 A17 3.4 A7 3.4 A6 3.4 A5 3.4 A4 3.4 A3 3.4 A2 3.4 A1 DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 OE# VSS CE# A0 R2802 10K 3.4 3.4 0 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 0 3.4 3.4 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 R2806 10K R2805...
Service Manual
Page 31
... HDMI_POWER 3.1 3.1 0 3.1 3.1 0 3.1 3.1 0 3.1 3.1 3.4 0.1 B 12 11 10 9 8 7 6 5 4 3 2 1 3.4 5.0 HDMI1_SCL VCC ACLK- A0+ GND A1- GND Y1+ Y1- E F CAUTION: DIGITAL TRANSISTOR CAUTION: DIGITAL TRANSISTOR G PCBDH0 CEG352 H 8 7 6 5 4 3 2 1 H-6 B2+ SEL 0 GND 25 26 27 28 29 30 31 32 33 34 35 36 3.1 3.1 0 3.1 3.1 3.3 3.1 3.1 0 3.1 3.1 0 Y2+ Y2- A1+ GND A2- B_HPD A_DDC_SDA 5.0 HDMI1_SDA HDMI_CLKN HDMI_CLKP HDMI_D0N HDMI_D0P 37 38 39...
... HDMI_POWER 3.1 3.1 0 3.1 3.1 0 3.1 3.1 0 3.1 3.1 3.4 0.1 B 12 11 10 9 8 7 6 5 4 3 2 1 3.4 5.0 HDMI1_SCL VCC ACLK- A0+ GND A1- GND Y1+ Y1- E F CAUTION: DIGITAL TRANSISTOR CAUTION: DIGITAL TRANSISTOR G PCBDH0 CEG352 H 8 7 6 5 4 3 2 1 H-6 B2+ SEL 0 GND 25 26 27 28 29 30 31 32 33 34 35 36 3.1 3.1 0 3.1 3.1 3.3 3.1 3.1 0 3.1 3.1 0 Y2+ Y2- A1+ GND A2- B_HPD A_DDC_SDA 5.0 HDMI1_SDA HDMI_CLKN HDMI_CLKP HDMI_D0N HDMI_D0P 37 38 39...
Service Manual
Page 33
...+3.3V/NC/GND 30 VDD+3.3V/NC/GND 29 GND 28 LVDS0OUT0M E19 1.5 LVDS0OUT0P F19 1.5 NR2811 CRA108220JV LCD_TXOUT0LCD_TXOUT0+ GND 27 RXIN0- 26 RXIN0+ 25 FROM REGULATOR2 B2806 HCB1608KF-221T20 D3.3V B2807 HCB1608KF-221T20 6 C2865 10V 22 V-S GND C2974 16V 10 V-S C2975 16V... LCD_TXOUT1LCD_TXOUT1+ LCD_TXOUT2LCD_TXOUT2+ LCD_TXCLKOUTLCD_TXCLKOUT+ GND 24 RXIN1- 23 RXIN1+ 22 GND 21 RXIN2- 20 CD2804 V2301_1 V260B1-L01_M RXIN2+ 19 CURU1704 LCD PANEL 6 GND 18 RXCLK IN- 17 RXCLK IN+ 16 PLL POWER LVDS_CH0 D1.0V VDD_PANEL B2808 HCB1608KF-221T20 B2809 HCB1608KF-221T20 1.0...
...+3.3V/NC/GND 30 VDD+3.3V/NC/GND 29 GND 28 LVDS0OUT0M E19 1.5 LVDS0OUT0P F19 1.5 NR2811 CRA108220JV LCD_TXOUT0LCD_TXOUT0+ GND 27 RXIN0- 26 RXIN0+ 25 FROM REGULATOR2 B2806 HCB1608KF-221T20 D3.3V B2807 HCB1608KF-221T20 6 C2865 10V 22 V-S GND C2974 16V 10 V-S C2975 16V... LCD_TXOUT1LCD_TXOUT1+ LCD_TXOUT2LCD_TXOUT2+ LCD_TXCLKOUTLCD_TXCLKOUT+ GND 24 RXIN1- 23 RXIN1+ 22 GND 21 RXIN2- 20 CD2804 V2301_1 V260B1-L01_M RXIN2+ 19 CURU1704 LCD PANEL 6 GND 18 RXCLK IN- 17 RXCLK IN+ 16 PLL POWER LVDS_CH0 D1.0V VDD_PANEL B2808 HCB1608KF-221T20 B2809 HCB1608KF-221T20 1.0...
Service Manual
Page 34
... 22 21 20 19 18 17 0.5 3.2 9 10 11 12 13 14 15 16 SUR_SW VREF 3.3V_POWER_H AVSS IIC_OFF IVCC 32 31 30 29 28 27 26 25 KEY_B 3.4 DTV_RESET ASEMD0 3.4 3.4 1V_CTL 25 KEY_A 3.3 STBY-H 32 MAIN_MICON_TXD 3.4 MODE 17 HDMI_CEC DVD_POWER NC 3.4 EXT_MUTE 16 POWER_FAIL SYS_POWER_H 3.3 2.9 9 DISC_IN_DET AUDIO_MUTE EEPROM_SDA 3.4 8 REMOCON_IN 0 DVD_RESET 1 MAIN_MICON_RXD...
... 22 21 20 19 18 17 0.5 3.2 9 10 11 12 13 14 15 16 SUR_SW VREF 3.3V_POWER_H AVSS IIC_OFF IVCC 32 31 30 29 28 27 26 25 KEY_B 3.4 DTV_RESET ASEMD0 3.4 3.4 1V_CTL 25 KEY_A 3.3 STBY-H 32 MAIN_MICON_TXD 3.4 MODE 17 HDMI_CEC DVD_POWER NC 3.4 EXT_MUTE 16 POWER_FAIL SYS_POWER_H 3.3 2.9 9 DISC_IN_DET AUDIO_MUTE EEPROM_SDA 3.4 8 REMOCON_IN 0 DVD_RESET 1 MAIN_MICON_RXD...
Service Manual
Page 37
... R5811 R5812 C5827 180K 100 2.2 B C5830 2.2 B BTSC DEMODULATOR IC IC5801 AN5832SA-E1V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 3.5 PILOT DET NC NC 3.5 PLL L+R REF 2.2 0 VCC SAP DET 2.8 NC NC NOISE DET 2.9 2.2 INPUT SIF/BB...
... R5811 R5812 C5827 180K 100 2.2 B C5830 2.2 B BTSC DEMODULATOR IC IC5801 AN5832SA-E1V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 3.5 PILOT DET NC NC 3.5 PLL L+R REF 2.2 0 VCC SAP DET 2.8 NC NC NOISE DET 2.9 2.2 INPUT SIF/BB...
Service Manual
Page 41
... NOMENCLATURE DES PIECES C D E CAUTION:SINCE THESE PARTS MARKED BY ARE CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY CAUTION: DIGITAL TRANSISTOR F G 2 PCB240 CEG353 1 H H-26 A B H-25 R448 39K +-1% R449 6.8K +-1% R467 75K +-1% CAUTION: IS THE LIVE CONNECTION 34 21 R435 1K C494_1 50V 4.7 MHE CATHODE ANODE REFERENCE R438 2.2K 1/4W...
... NOMENCLATURE DES PIECES C D E CAUTION:SINCE THESE PARTS MARKED BY ARE CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY CAUTION: DIGITAL TRANSISTOR F G 2 PCB240 CEG353 1 H H-26 A B H-25 R448 39K +-1% R449 6.8K +-1% R467 75K +-1% CAUTION: IS THE LIVE CONNECTION 34 21 R435 1K C494_1 50V 4.7 MHE CATHODE ANODE REFERENCE R438 2.2K 1/4W...
Service Manual
Page 48
... 1/4W STANDBY/POWER D2201 LTL-1BEFJ-002A FROM/TO JACK2 CP2201 (CP4201) A2001WR2-5P REMOCON IN 1 GND 2 AT+5V 3 STANDBY LED 4 POWER ON LED 5 OS 26 CD2201 E8253101 (OPERATION PCB) R2207_2 330 SH INPUT SW2202_3 EVQ21505R SH VOL DOWN SW2206_3 EVQ21505R R2203_2 1.2K R2202_2 2.2K R2212 5.6K R2206_2 1.5K PCBDA0 CEG359...
... 1/4W STANDBY/POWER D2201 LTL-1BEFJ-002A FROM/TO JACK2 CP2201 (CP4201) A2001WR2-5P REMOCON IN 1 GND 2 AT+5V 3 STANDBY LED 4 POWER ON LED 5 OS 26 CD2201 E8253101 (OPERATION PCB) R2207_2 330 SH INPUT SW2202_3 EVQ21505R SH VOL DOWN SW2206_3 EVQ21505R R2203_2 1.2K R2202_2 2.2K R2212 5.6K R2206_2 1.5K PCBDA0 CEG359...
Service Manual
Page 49
...SYS_POWER_H 3 3 AT+3.3V 4 4 GND 55 P.CON+5V 6 6 AT+5V 7 7 AT+5V 8 8 GND 99 GND 10 10 LCD+B 11 11 LCD+B 12 12 LCD_H 13 13 P.CON+9V 14 14 GND 15 15 GND 16 16 STBY_H 17 17 SW+12V 18 18 REMOCON_IN 19...AT+3.3V 55 GND 66 77 P.CON+5V AT+5V 88 AT+5V 99 GND 10 10 GND 11 11 LCD+B 12 12 LCD+B 13 13 14 14 LCD_H P.CON+9V 15 15 GND 16 16 17 17 GND STBY_H 18 18 SW+...RXCLK IN- 17 GND 18 RXIN2+ 19 RXIN2- 20 GND 21 RXIN1+ 22 RXIN1- 23 GND 24 RXIN0+ 25 RXIN0- 26 GND 27 GND 28 VDD+3.3V/NC/GND 29 NC VDD+3.3V/NC/GND 30 SUB MICON CP6201 GND 1 TX 2 (...
...SYS_POWER_H 3 3 AT+3.3V 4 4 GND 55 P.CON+5V 6 6 AT+5V 7 7 AT+5V 8 8 GND 99 GND 10 10 LCD+B 11 11 LCD+B 12 12 LCD_H 13 13 P.CON+9V 14 14 GND 15 15 GND 16 16 STBY_H 17 17 SW+12V 18 18 REMOCON_IN 19...AT+3.3V 55 GND 66 77 P.CON+5V AT+5V 88 AT+5V 99 GND 10 10 GND 11 11 LCD+B 12 12 LCD+B 13 13 14 14 LCD_H P.CON+9V 15 15 GND 16 16 17 17 GND STBY_H 18 18 SW+...RXCLK IN- 17 GND 18 RXIN2+ 19 RXIN2- 20 GND 21 RXIN1+ 22 RXIN1- 23 GND 24 RXIN0+ 25 RXIN0- 26 GND 27 GND 28 VDD+3.3V/NC/GND 29 NC VDD+3.3V/NC/GND 30 SUB MICON CP6201 GND 1 TX 2 (...