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Table of Contents
Related Manuals for Orion LCD2649
Summary of Contents for Orion LCD2649
- Page 3 CV181H-X-40C CV181H-X-40C Common problems solution Common problems solution — — Power Chart Power Chart — — Power Units Problem Solving Power Units Problem Solving — — Display Units Problem Solving Display Units Problem Solving — — Audio Units Problem Solving Audio Units Problem Solving —...
- Page 4 In stand-by condition, Check TP3 have or not 5V? Check main board TP5 have 3.3V ? Normal boot Check U1 Power Check external Supply Net power After power on, Check point TP4 have 12V ， Test point TP1 have 1.26V， Test point TP12 have 3.3V , Test point TP9 have 2.5V, Test point TP8 have 1.8V ?
- Page 5 Picture.2 Display Unit Flickering or (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, J6 cable socket Works normal Check the software Change the circuit match able Re-update the software...
- Page 6 Picture 3 Display Unit (black screen) Black screen Main board TP4 Have or not 12V？ Check the Inverter power supply 1pin of J7 or 4 pin of J3 output voltage is over 3.3V Check power supply circuit Inverter broke or Maintenance power bad wire connection...
- Page 7 No sound Picture 4 Audio Unit (no sound) If Any audio signal input or amplifier power supply normal Check the Volume, MUTE settings J11 If any signal output U3（TPA3110L）3/12 Pin have signal input Check U9 audio input pin has the signal output Check Maintains U9 External audio...
- Page 8 Figure.5 Function Unit (ATV broke down) TV no searching /no image Check External RF signal input Check the TP7 have 5V , or Check the TP11 have 3.3V ? Check Tuner No. 6,7pin of U13 Have I2C data Check No.9,10 pin of U13 have IF signal Check external circuit of U13 is OK? Check...
- Page 9 Picture 6 Function Unit （ATV with the image but no sound) TV no sound only picture Check the sound of PC& AV See “NO SOUND” Change repair guide U9(MST6M181VG)
- Page 10 Picture 7 Function Unit (PC) Check VGA Image not Color No signal Image circuit In the middle cast shakes connection U9(MST6M181VG) VS,HS signal R.G.B input signal Stable and well Check works well VGA circuit connection Carry out OSD settings, Check VS.HS auto-adjust Reset the Check VGA...
- Page 11 Picture 8 Function （SCART,VGA） RGB、SCART SCART All no signal Miss color, color cast U9(MST6M181VG)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 （MST6M181VG ） Power supply...
- Page 12 Picture 9 Function Unit （HDMI） HDMI Image, Check HDMI No image no sound connection U14（ IT6633E ） HDMI and relevant Check If the sound network is ok in PC See the repairs Check HDMI Check HDMI and Check the circuit of U14 and guide “No Sound and the input input network...
- Page 13 Picture 10 Function Unit （YPBPR） YPBPR YPBPR No signal Color cast Check U9 external circuit Check U9 external circuit and crystal circuit.
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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) LCD2649 LCD3249/4050... -
Page 15: Standby Power
Power Input +5VSB_IN +5VSB_IN INV_ON INV_ADJ INV_ON INV_ADJ 11 +5Vsb_IN GND1 GND5 +5Vsb_IN +12V_SW +12V_SW +12V_SW +12V_SW +5V_STB +12VA +12VB ON/OFF ON/OFF GND2 GND4 ON/OFF Panel_+5V GND3 SW-PWR GND3 +5Vsb_IN +5Vsb_IN GND1 +5VA +5VB +5V_SW Panel_+5V VCC_PANEL1 TP10 TP10 NC/HEADER2x6_2mm_POWER_H NC/HEADER2x6_2mm_POWER_H VCC_PANEL +5V_SW... - Page 16 VGA INPUT CON7 CON7 VGA_Bin VGA_B VGA_B 4 VGA_Gin VGA_G VGA_G 4 VGA_Rin VGA_R VGA_R 4 Audio_R Audio_R PC-R R219 R219 AIN0R AIN0R 7 R228 R228 R232 R232 R227 R227 PC-L R220 R220 AIN0L AIN0L 7 NC/ESD NC/ESD Audio_L Audio_L NC/ESD NC/ESD CON2...
- Page 17 YPbPr YPBPR_PR Audio in off page C179 C179 NC/ESD NC/ESD Video out off page CVBS1_IN CVBS1_IN 7 CVBS2_IN CVBS2_IN 7 YPBPR_Y Video out off page C178 C178 NC/ESD NC/ESD Y2_IN Audio off page Y2_IN SOY2_IN SOY2_IN Close Connect PB2_IN AIN3L AIN3L 7 PB2_IN YPBPR_PB...
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Page 18: Usb Input
RCA Video CVBS Output +5V_SW C204 C204 100n 100n R222 R222 R218 R218 330R 330R 3906 3906 C195 10u/25V C195 10u/25V CVBS_OUT CVBS_OUT 3904 3904 R234 R234 R229 R229 SC1_CVBS_OUT SC1_CVBS_OUT 4 C212 C212 R221 R221 R233 R233 DVBDM USB Input DVBDM 7 DVBDP DVBDP 7... - Page 19 +5V ANALOG TUNER POWER +3.3V SI-TUNER POWER TP11 TP11 +5V_SW +3V3_TUNER +3V3_TUNER +3V3_TUNER 7805 7805 +5V_IN_TUNER +5V_IN_TUNER +12V_SW NC/600R/1000mA NC/600R/1000mA VOUT +5V_IN_TUNER Vout1 VOUT NC/BM1117-3.3 NC/BM1117-3.3 100n 100n 100u/16V 100u/16V 100n 100n 100n 100n 100n 100n NC/100u/16V NC/100u/16V NC/100n NC/100n ATV Tuner TU_SDA R108...
- Page 20 USB Input DVBDM DVBDM DVBDP DVBDP +2.5V_PGA DDR2 VREF SARADC Input VDDC AVDD_DDR AVDD_33 KEY0-SAR0 KEY0-SAR0 KEY1-SAR1 ADC2P5 AVDD_33_PM KEY1-SAR1 AVDD_DDR R104 IRIN IRIN System-RST 1K_1% 1K_1% 主IC为MST6M181VG、MST6M182VG时， System-RST Flash_wp SPDF_OUT Flash_wp SPDF_OUT 10 MDDR_VREF BALL D5到BALL B4为NC PIN; R106 C113 C114 只有MST6M161LG这些PIN 才为HDMI INPUT...
- Page 21 Normal Power 1.2V VDDC +1V2_SW 120R/700mA 120R/700mA DVDD_NODIE_1.2V DVDD_NODIE_1.2V 7 C107 C107 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n Normal Power 2.5V +2.5V_PGA ADC2P5 +2V5 120R/700mA 120R/700mA +2V5 120R/700mA 120R/700mA 100n 100n 150mA AVSS_PGA AVSS_PGA 7 100n 100n 100n...
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Page 22: Spdif Out
SPDIF OUT +3V3 Flash Interface CON6 CON6 +3V3 RCA-1 RCA-1 C130 C130 4.7K 4.7K SPDIF-OUTPUT C208 100n C208 100n 220R 220R SPDF_OUT SPDF_OUT 7 100n 100n U6 EN25Q32B U6 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... - Page 23 VCC-Panel RLV1P RLV1N RLV0P LVSYNC RLV0N LHSYNC 22X4 22X4 TX0M0 TX0M0 RXO0- RLV2P TX0M0 TX0P0 TX0P0 RXO0+ RLV2N 100n 100n TX0P0 TX0M1 TX0M1 RXO1- RLV3P TX0M1 TX0P1 TX0P1 RXO1+ RLV3N TX0P1 TX0M2 22X4 22X4 TX0M2 VCC1 TX0P2 TX0M2 RXO2- RLV4P TX0P2 VCC3 TXCLK0M...
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Page 24: Mute Control
+12 V For Audio AMP. +24V_AMP TPA3110L TPA3110L 220n/50V 220n/50V 22uH/3A 22uH/3A OUT_LP C155 C155 C165 C165 +12V_SW 680n/16V 680n/16V TPA3120_SD PVCC1 FAULT PVCC2 AOUT0L NC/SK34 NC/SK34 AOUT0L 220n/50V 220n/50V LINP BSN2 +24V_AMP AUDIO_POWER AUDIO_POWER +24V_AMP 220n/50V 220n/50V LINN OUTN2 22uH/3A 22uH/3A OUT_L-...