Advertisement
Quick Links
Advertisement
Related Manuals for Orion LED2648
Summary of Contents for Orion LED2648
- Page 3 CV182H-G-40 CV182H-G-40 CV182H-G-40 CV182H-G-40 CV182H-G-40 CV182H-G-40 CV182H-G-40 CV182H-G-40 Common problems solution Common problems solution Common problems solution Common problems solution Common problems solution Common problems solution Common problems solution Common problems solution — — Power Units Problem Solving Power Units Problem Solving Power Units Problem Solving Power Units Problem Solving Power Units Problem Solving...
- Page 4 In stand-by condition, Check TP3 have or not 5V? Check main board TP9 have 3.3V ? Normal boot Check U12 Power Check external Supply Net power After power on, Check point TP1 have 12V ， Test point TP5 have 1.26V, Test point TP2 have 1.8V ? Test point TP7 have 2.5V ? Check the availability of short-circuit...
- Page 5 Picture.2 Display Unit Picture.2 Display Unit Picture.2 Display Unit Picture.2 Display Unit Flickering or (black screen) (black screen) (black screen) (black screen) Black screen （ Back light on ） Check the connection of Driver Board Cable connect well Change the LCD, check if it is ok Check the network output, J3 cable socket...
- Page 6 Picture 3 Display Unit (black screen) Picture 3 Display Unit (black screen) Picture 3 Display Unit (black screen) Picture 3 Display Unit (black screen) Black screen Main board TP1 Have or not 12V ？ Check the Inverter power supply 4 pin of J7 output voltage is over 3.3V Check power supply circuit Inverter broke or Maintenance power...
- Page 7 Picture 4 Audio Unit (no sound) Picture 4 Audio Unit (no sound) Picture 4 Audio Unit (no sound) Picture 4 Audio Unit (no sound) No sound If Any audio signal input or amplifier power supply normal Check the Volume, MUTE settings con2 If any signal output U1 （...
- Page 8 Figure.5 Function Unit Figure.5 Function Unit Figure.5 Function Unit Figure.5 Function Unit (ATV broke down) (ATV broke down) (ATV broke down) (ATV broke down) TV no searching /no image Check External RF signal input Check the TP8 have 5V ? Check Tuner No.
- Page 9 Picture 6 Function Unit （ATV with the Picture 6 Function Unit Picture 6 Function Unit Picture 6 Function Unit ATV with the ATV with the ATV with the image but no sound) image but no sound) image but no sound) image but no sound) TV no sound only picture Check the sound of PC&...
- Page 10 Picture Picture Picture Picture 7 7 7 7 Function Unit Function Unit Function Unit Function Unit (PC) (PC) (PC) (PC) Check VGA Image not Color No signal Image circuit In the middle cast shakes connection U11(MST6M182VG) VS,HS signal R.G.B input signal Stable and well Check works well...
- Page 11 Picture Picture Picture Picture 8 Function 8 Function 8 Function 8 Function （SCART,VGA） RGB 、 SCART SCART All no signal Miss color, color cast U11(MST6M182VG)R.G.B Input signal is normal SCART socket contact is ok Check The system is incorrect Check SCART R.G.B re-set settings Input network （MST6M182VG ）...
- Page 12 Function Unit （HDMI Picture Picture Picture 9 9 9 9 Function Unit Function Unit Function Unit HDMI HDMI Picture HDMI） HDMI Image, Check HDMI No image no sound connection U13 （ IT6633 ） HDMI and relevant Check If the sound network is ok in PC See the repairs...
- Page 13 Picture Picture Picture Picture 10 10 Function Unit Function Unit Function Unit Function Unit （YPBPR） YPBPR YPBPR No signal Color cast Y/PB/PR Check U11 input signal external circuit network and Crystal circuit...
-
Page 14: Remote Board
3.KEY BOARD AND REMOTE BOARD 3.1 KEY BOARD View of copper SIDE(top/bottom) 3.2 REMOTE BOARD View of copper SIDE(top/bottom) -
Page 15: Standby Power
+5Vsb_IN +5Vsb_IN +5Vsb_IN +5Vsb_IN +5V_STB ON/OFF ON/OFF INV_ON INV_ADJ INV_ON GND3 Panel_+5V INV_ADJ 11 +5Vsb_IN +5Vsb_IN GND1 GND1 GND5 +5V_SW Panel_+5V +12V_SW +12V_SW +12V_SW +12V_SW VCC_PANEL1 +12VA +12VB +5Vsb_IN VCC_PANEL GND2 GND4 +5V_SW ON/OFF +5V1 SW-PWR GND3 +12V_SW +12V_SW +12V_SW +5VA +5VA +5VA... - Page 16 VGA INPUT HDMI NET CON15 CON15 VGA_Bin VGA_B VGA_B 4 VGA_Gin VGA_G VGA_G 4 VGA_Rin VGA_R SDA_HDMI VGA_R 4 SDA_HDMI 7 Audio_R Audio_R PC-R R207 R207 AIN3R SCL_HDMI AIN3R 7 SCL_HDMI 7 HDMI1-ARC HDMI1-ARC R241 R241 R243 R243 CEC_HDMI R239 R239 CEC_HDMI PC-L...
- Page 17 AV INPUT AV3 INPUT AV1_CVBS R131 R131 CVBS1_IN CVBS1_IN 7 R139 R139 C133 1n C133 1n SOY2_IN SOY2_IN 7 PH-5A_NC PH-5A_NC R133 R133 33R_NC 33R_NC CVBS3_IN CVBS3_IN 7 YPbPr AV3_CVBS YPBPR_Y YPBPR_Y R140 R140 C134 47n C134 47n Y2_IN C142 C142 Y2_IN 7 NC/ESD...
-
Page 18: Usb Input
RCA Video CVBS Output +5V_SW C166 C166 100n 100n R176 R176 R174 R174 330R 330R 3906 3906 C169 10u/25V C169 10u/25V CVBS_OUT CVBS_OUT 3904 3904 R188 R188 R189 R189 SC1_CVBS_OUT SC1_CVBS_OUT 4 C184 C184 R187 R187 R177 R177 DVBDM USB Input DVBDM 7 DVBDP DVBDP 7... - Page 19 TU_SDA TUNER_SDA 7 TU_SCL TUNER_SCL 7 7805 7805 +5V_IN_TUNER +5V_IN_TUNER +12V_SW +5V_IN_TUNER VOUT SI-TUNER 33pF 220u/16V 220u/16V 100n 100n 100n 100n 100n 100n 新增两个电容 100u/16V 100u/16V TUAGC 100R 100R TAGC TAGC 7 ATV Tuner 100n 100n SI-TUNER时删除100nF. TUNER AGC,Close TUNER IF_OUT2 100n 100n...
- Page 20 DDR2 VREF USB Input DVB1DM DVB1DM DVB1DP DVB1DP AVDD_DDR DVBDM R104 DVBDM DVBDP DVBDP 1K_1% 1K_1% +2.5V_PGA MDDR_VREF SARADC Input R106 C113 C114 VDDC AVDD_DDR AVDD_33 KEY0-SAR0 KEY0-SAR0 KEY1-SAR1 ADC2P5 AVDD_33_PM KEY1-SAR1 100n 100n 1K_1% 1K_1% IRIN IRIN System-RST 主IC为MST6M181VG、MST6M182VG时， System-RST Flash_wp SPDF_OUT...
- Page 21 Normal Power 1.2V VDDC +1V2_SW DVDD_NODIE_1.2V DVDD_NODIE_1.2V C104 C104 100n 100n 100n 100n 100n 100n Normal Power 2.5V +2.5V_PGA ADC2P5 +2V5 +2V5 C107 C107 100n 100n 150mA AVSS_PGA AVSS_PGA 7 100n 100n 100n 100n DDR power AVDD_DDR Standby Power 3.3V AVDD_33_PM +3V3 C149...
-
Page 22: Spdif Out
SPDIF OUT +3V3 Flash Interface Optical Fiber CON1 CON1 +3V3 RCA-1 RCA-1 4.7K 4.7K SPDIF-OUTPUT 100n 100n 220R 220R SPDF_OUT SPDF_OUT 10 100n 100n U8 EN25Q32B U8 EN25Q32B CEN_FLASH SD0_FLASH NC/10K NC/10K 150R 150R HOLD# NC/ESD NC/ESD SCK_FLASH Flash_wp Flash_wp 7 SD1_FLASH 100n 100n... - Page 23 VCC-Panel TX0M0 TX0M0 RXO0- TX0M0 TX0P0 TX0P0 RXO0+ TX0P0 TX0M1 TX0M1 RXO1- TX0M1 TX0P1 TX0P1 RXO1+ TX0P1 TX0M2 22X4 22X4 TX0M2 TX0P2 TX0M2 RXO2- TX0P2 TXCLK0M TX0P2 RXO2+ 100n 100n TXCLK0M TXCLK0P TXCLK0M RXOC- TXCLK0P TX0M3 TXCLK0P RXOC+ TX0M3 TX0P3 22X4 22X4 TX0P3...
- Page 24 +12V_SW 24VA 0R_NC 1/4W 0R_NC 1/4W 24VA +12V_AMP +12V_AMP SK34 SK34 CON4 CON4 XH-4A XH-4A +12V_AMP TPA3110D2 TPA3110D2 22uH/3A 22uH/3A SP_L 220n 220n C118 C118 AOUT0L AOUT0L AUDIO_L TPA3120_SD 680n 680n 1n_nc 1n_nc PVCC1 FAULT PVCC2 AUDIO_L 220n 220n LINP BSN2 +12V_AMP 220n...