Shivaki STV-22LED3 Service Manual Download | Manualshive

Page: 46 / 57

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E ceptional Screen

2.

2. Display Troubleshooting (Exceptional Screen / White Screen)

Exceptional Screen

/ White Screen

Y

Is upgrade software OK?

Old software is wrong.

Y

N

Check if the LVDS cable is correct

and connected tightly

Y

N

Check if the voltage of

CN11_PIN1 is OK

？

(Determined by the screen)

N

Y

Check the circuit

between U1 and CN11

Y

N

Change the LVDS cable

Check Q1,Q4

d CN

Change U1

Change the defective

t

and CN5

Change U1

components

第 46 页，共 57 页

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Summary of Contents for STV-22LED3

Page 1: ...SERVICE MANUAL STV 22LED3 STV 24LED3 第 1 页共 57 页 ...

Page 2: ...UT 4 3 FEATURES 5 4 PCB DIMENSIONS 6 5 SCHEMATICS OF IR BOARD KEY BOARD 6 6 INTERFACE DEFINITION 6 7 SCHEMATIC 6 8 POWER BOARD 6 9 BOM LIST 7 10 BOARD SERVICE MANUAL 7 11 LINE DIAGRAM 8 12 SOFTWARE UPDATE 8 3 3 4 7 8 8 12 26 41 45 55 57 第 2 页共 57 页 ...

Page 3: ...T2 program It can decrypt programs encrypted by Irdeto Viaccess Conax with built in CI optional T MT5310 61A s USB slot can be used for Software upgrade multimedia playback PVR and time shift 2 FUNCTION LAYOUT The picture is for a reference only the actual item is the standard The optional connectors and terminals are marked with TOP VIEW OF T MT5310 61A CN6 5V Power Supply CN11 LVDS Interface CN1...

Page 4: ...SB Slot In REQUIREMENT OF WIRE HARNESS optional AV In COMPONENT In 3 FEATURES CHIPSET MT5310 MT8295 CXD2820 MARKET AREA Pan Europe UK OSD LANGUAGE English French German Italian Spanish Portuguese optional PANEL Panel Type LED Interface Dual Single LVDS Interface Max Resolution 1920 1080 TV INPUT ATV Receiving Range 48 25MHz 863 25MHz Input Impedance 75Ω Video System PAL SECAM Sound System BG DK I ...

Page 5: ...080i 1080p SCART CVBS RGB AUDIO INPUT PC Audio Earphone Input 0 2 2 0 VRMS CVBS Component Audio L R RCA Input 0 2 2 0 VRMS AUDIO OUTPUT Frequency Response 100Hz 15KHz 3dB 1KHz reference signal Max Output Power 2 3W 4Ω THD N 10 1KHz Power Supply 12V Audio Input 0 5VRMS POWER Requirement 12V DC 12V built in 12V 5V built in 12V 5V 5VSB built in To Panel 3 3V 5V 12V Management Standby Power Consumptio...

Page 6: ...8khz Photo jpg jpeg Baseline Min Resolution 4 4 Max Resolution 17000 10000 Progressive Min Resolution 4 4 Max Resolution 4000 4000 bmp BMP Min Resolution 2 2 Max Resolution 4000 4000 png PNG Min Resolution 2 2 Max Resolution 2000 2000 Text txt Ansi Unicode Unicode Big Endian File system FAT16 FAT32 NTFS Just for Media PVR function Recording standby Timeshift EPG recording reservation Note Licenses...

Page 7: ... CI SLOT VGA IN DC IN SCART EARPHONE OUT HDMI IN USB IN COAX OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 AV IN YPbPr IN 11 3 4 6 5 2 7 9 8 10 12 13 1 NO Description Ver V1 1 RJ45 IN 4 PCB DIMENSIONS The size of T MT5310 61A is 185 5mm L 147 5mm W 22mm H 第 7 页共 57 页 ...

Page 8: ...ERTER CONNECTOR NO SYMBOL DESCRIPTION 1 12V 12V DC Power Supply 2 12V 3 12V 4 12V 5 BLO Back Light ON OFF Control for Panel 6 ADJ Brightness Adjustment for Panel 7 GND Ground 8 GND 9 GND 10 GND CN3 6PIN 2 0 INVERTER CONNECTOR NO SYMBOL DESCRIPTION 1 12V 12V DC Power Supply 2 12V 3 BLO Back Light ON OFF Control for Panel 4 ADJ Brightness Adjustment for Panel 第 8 页共 57 页 ...

Page 9: ... 5V 5V DC Power Supply 2 RED Red Indicator 3 GRN Green Indicator 4 IR IR Receiver 5 GND Ground 6 K0 Key0 7 K1 Key1 8 K2 Key2 9 K3 Key3 10 K4 Key4 11 K5 Key5 12 K6 Key6 13 K7 Key7 Reserved 14 GND Ground CN11 2 15PIN 2 0 LVDS INTERFACE CONNECTOR NO SYMBOL DESCRIPTION 1 VSEL Power Supply for Panel 2 VSEL 3 VSEL 4 GND Ground 5 GND 6 GND 7 TXO0 LVDS ODD 0 Signal 8 TXO0 LVDS ODD 0 Signal 9 TXO1 LVDS ODD...

Page 10: ...gnal CN17 4PIN 2 54 SPEAKER CONNECTOR NO SYMBOL DESCRIPTION 1 LO Audio Left Channel Output 2 GND Ground 3 GND 4 RO Audio Right Channel Output CN19 8PIN 2 0 DVD POWER CONTROL CONNECTOR NO SYMBOL DESCRIPTION MAX CURRENT 1 D5V 5V DC Power Supply for DVD 1200 mA 2 D5V 3 GND Ground 4 GND 5 D12 12V DC Power Supply for DVD 1000 mA 6 DIR IR Data Transfer to DVD 7 DAT RX Data Receiver Serial Data Receiver ...

Page 11: ...e temperature 10 60 C Operation temperature 0 40 C Protect the board from static electricity in case of damage to the IC Keep the board away from conductor when it is working Don t push or pull the connectors when the board is working Don t press distort or disassemble the board Clean the board with soft dry cloth when it s dirty Don t wire in the board to power supply before panel is correctly co...

Page 12: ...3902 COC39 PIC4201 PIC4202 COC42 PIC4301 PIC4302 COC43 PIC4701 PIC4702 COC47 PIC5501 PIC5502 COC55 PIC9101 PIC9102 COC91 PIC13201 PIC13202 COC132 PIC27801 PIC27802 COC278 PICN101 PICN102 PICN103 COCN1 PICN201 PICN202 PICN203 PICN204 PICN205 PICN206 PICN207 PICN208 PICN209 PICN2010 COCN2 PICN301 PICN302 PICN303 PICN304 PICN305 PICN306 COCN3 PICN501 PICN502 PICN503 COCN5 PICN601 PICN602 PICN603 PICN...

Page 13: ...C25201 PIC25202 COC252 PIC27901 PIC27902 COC279 PIC28001 PIC28002 COC280 PICN1001 PICN1002 PICN1003 PICN1004 PICN1005 PICN1006 PICN1007 PICN1008 PICN1009 PICN10010 PICN10011 PICN10012 PICN10013 PICN10014 COCN10 PICN1101 PICN1102 PICN1103 PICN1104 PICN1105 PICN1106 PICN1107 PICN1108 PICN1109 PICN11010 PICN11011 PICN11012 PICN11013 PICN11014 PICN11015 PICN11016 PICN11017 PICN11018 PICN11019 PICN1102...

Page 14: ...04 PIRP1005 PIRP1006 PIRP1007 PIRP1008 CORP10 PIRP1101 PIRP1102 PIRP1103 PIRP1104 PIRP1105 PIRP1106 PIRP1107 PIRP1108 CORP11 PIRP1201 PIRP1202 PIRP1203 PIRP1204 PIRP1205 PIRP1206 PIRP1207 PIRP1208 CORP12 PIU20A1 PIU20A2 PIU20A3 PIU20A7 PIU20A8 PIU20A9 PIU20B1 PIU20B2 PIU20B3 PIU20B7 PIU20B8 PIU20B9 PIU20C1 PIU20C2 PIU20C3 PIU20C7 PIU20C8 PIU20C9 PIU20D1 PIU20D2 PIU20D3 PIU20D7 PIU20D8 PIU20D9 PIU2...

Page 15: ...17 PICN2601 PICN2602 PICN2603 PICN2604 PICN2605 PICN2606 PICN2607 COCN26 PIE1301 PIE1302 COE13 PIE1701 PIE1702 COE17 PIE1901 PIE1902 COE19 PIE2001 PIE2002 COE20 PIR12401 PIR12402 COR124 PIR12601 PIR12602 COR126 PIR12801 PIR12802 COR128 PIR13301 PIR13302 COR133 PIR13401 PIR13402 COR134 PIR13601 PIR13602 COR136 PIR13701 PIR13702 COR137 PIU1001 PIU1002 PIU1003 PIU1004 PIU1005 PIU1006 PIU1007 PIU1008 ...

Page 16: ...7 COCN24 PICN250C PICN250L PICN250L1 PICN250R PICN250R1 COCN25 PICN3501 PICN3502 PICN3503 PICN3504 PICN3505 PICN3506 COCN35 PID501 PID502 COD5 PID601 PID602 COD6 PID901 PID902 COD9 PID1001 PID1002 COD10 PID1101 PID1102 COD11 PID1201 PID1202 COD12 PID1301 PID1302 COD13 PID1501 PID1502 COD15 PID1601 PID1602 COD16 PID1701 PID1702 COD17 PID1801 PID1802 COD18 PID1901 PID1902 COD19 PID2001 PID2002 COD20...

Page 17: ... PICN1309 PICN13010 PICN13011 PICN13012 PICN13013 PICN13014 PICN13015 PICN13016 PICN13017 PICN13018 PICN13019 PICN13020 PICN13021 COCN13 PICN1401 PICN1402 PICN1403 PICN1404 PICN1405 PICN1406 COCN14 PID2601 PID2602 COD26 PID2701 PID2702 COD27 PID2801 PID2802 COD28 PID2901 PID2902 COD29 PID3001 PID3002 COD30 PID3101 PID3102 COD31 PID3201 PID3202 COD32 PID3301 PID3302 COD33 PIR4401 PIR4402 COR44 PIR2...

Page 18: ...ICN27014 PICN27015 PICN27016 PICN27017 PICN27018 PICN27019 PICN27020 PICN27021 PICN27022 PICN27023 COCN27 PID3401 PID3402 COD34 PID3801 PID3802 COD38 PID3901 PID3902 COD39 PID4001 PID4002 COD40 PID4101 PID4102 COD41 PID4201 PID4202 COD42 PID4301 PID4302 COD43 PID4401 PID4402 COD44 PID4501 PID4502 COD45 PID4601 PID4602 COD46 PID4701 PID4702 COD47 PID4801 PID4802 COD48 PIQ280B PIQ280C PIQ280E COQ28 ...

Page 19: ...CN4054 PICN4055 PICN4056 PICN4057 PICN4058 PICN4059 PICN4060 PICN4061 PICN4062 PICN4063 PICN4064 PICN4065 PICN4066 PICN4067 PICN4068 PICN4069 PICN4070 PICN4071 PICN4072 COCN4 PIE101 PIE102 COE1 PIF201 PIF202 COF2 PIL101 PIL102 COL1 PIL601 PIL602 COL6 PIL801 PIL802 COL8 PIL1201 PIL1202 COL12 PIR3701 PIR3702 COR37 PIR4701 PIR4702 COR47 PIR7601 PIR7602 COR76 PIR8201 PIR8202 COR82 PIR8601 PIR8602 COR8...

Page 20: ... COC249 PIC25001 PIC25002 COC250 PIC25301 PIC25302 COC253 PIC25401 PIC25402 COC254 PIC25501 PIC25502 COC255 PIC25601 PIC25602 COC256 PIC25701 PIC25702 COC257 PIC25801 PIC25802 COC258 PIC25901 PIC25902 COC259 PIC26001 PIC26002 COC260 PIC26101 PIC26102 COC261 PIC26201 PIC26202 COC262 PIC26301 PIC26302 COC263 PIE1401 PIE1402 COE14 PIE1601 PIE1602 COE16 PIE2101 PIE2102 COE21 PIE2601 PIE2602 COE26 PIL1...

Page 21: ...014 COCN7 PICN1201 PICN1202 PICN1203 PICN1204 PICN1205 PICN1206 PICN1207 PICN1208 PICN1209 PICN12010 PICN12011 PICN12012 PICN12013 PICN12014 COCN12 PIFB101 PIFB102 COFB1 PIFB201 PIFB202 COFB2 PIFB301 PIFB302 COFB3 PIFB401 PIFB402 COFB4 PIR33801 PIR33802 COR338 PIR33901 PIR33902 COR339 PIR34001 PIR34002 COR340 PIR34101 PIR34102 COR341 PIR34201 PIR34202 COR342 PIR34301 PIR34302 COR343 PIR34501 PIR34...

Page 22: ... P A R 3 9 0 2 C O R 3 9 P A R 4 0 0 1 P A R 4 0 0 2 C O R 4 0 P A R 4 1 0 1 P A R 4 1 0 2 C O R 4 1 P A R 4 2 0 1 P A R 4 2 0 2 COR42 PAR4301 PAR4302 C O R 4 3 P A R 4 4 0 1 P A R 4 4 0 2 COR44 P A R 4 5 0 1 P A R 4 5 0 2 C O R 4 5 PAR4601 PAR4602C O R 4 6 P A R 4 7 0 1 P A R 4 7 0 2 C O R 4 7 P A R 4 8 0 1 P A R 4 8 0 2 C O R 4 8 P A R 4 9 0 2 P A R 4 9 0 1 COR49 PAR5001 PAR5002 C O R 5 0 P A R ...

Page 23: ... P A R 3 9 0 2 C O R 3 9 P A R 4 0 0 1 P A R 4 0 0 2 C O R 4 0 P A R 4 1 0 1 P A R 4 1 0 2 C O R 4 1 P A R 4 2 0 1 P A R 4 2 0 2 COR42 PAR4301 PAR4302 C O R 4 3 P A R 4 4 0 1 P A R 4 4 0 2 COR44 P A R 4 5 0 1 P A R 4 5 0 2 C O R 4 5 PAR4601 PAR4602C O R 4 6 P A R 4 7 0 1 P A R 4 7 0 2 C O R 4 7 P A R 4 8 0 1 P A R 4 8 0 2 C O R 4 8 P A R 4 9 0 2 P A R 4 9 0 1 COR49 PAR5001 PAR5002 C O R 5 0 P A R ...

Page 24: ...802 COR48 PAR4902 PAR4901 COR49 PAR5001 PAR5002 COR50 PAR5101 PAR5102 COR51 PAR5201PAR5202 COR52 PAR5301 PAR5302 COR53 PAR5401 PAR5402 COR54 PAR5501 PAR5502 COR55 PAR5601 PAR5602 COR56 PAR5701 PAR5702 COR57 PAR5801 PAR5802 COR58 PAR5901 PAR5902 COR59 PAR6001 PAR6002 COR60 PAR6101 PAR6102 COR61 PAR6201 PAR6202 COR62 PAR6301 PAR6302 COR63 PAR6401 PAR6402 COR64 PAR6501 PAR6502 COR65 PAR6601 PAR6602 C...

Page 25: ...802 COR48 PAR4902 PAR4901 COR49 PAR5001 PAR5002 COR50 PAR5101 PAR5102 COR51 PAR5201PAR5202 COR52 PAR5301 PAR5302 COR53 PAR5401 PAR5402 COR54 PAR5501 PAR5502 COR55 PAR5601 PAR5602 COR56 PAR5701 PAR5702 COR57 PAR5801 PAR5802 COR58 PAR5901 PAR5902 COR59 PAR6001 PAR6002 COR60 PAR6101 PAR6102 COR61 PAR6201 PAR6202 COR62 PAR6301 PAR6302 COR63 PAR6401 PAR6402 COR64 PAR6501 PAR6502 COR65 PAR6601 PAR6602 C...

Page 26: ...capacitor and a 10uF Output Voltage 输出电压 0 2W 230Vac Leakage Current 泄漏电流 12V Over Current Output Voltage 8A 1 4 3 Table 11 DC Output Short Circuit Protection 输出短路保护 12V Hiccup Comments Hiccup Comments electrolytic simulate system loading 12V 1 4 Protection 保护功能 Ps on high Output Voltage No load Power Loss 空载功耗 Input Fuse 输入保险额定值 Comments Ps on low Ripple Noise Max 200MV Ps on Signal Outputs 1 3 O...

Page 27: ...2 Off State 2 5 5 5 5 On State INPUT VOLTAGE 亮度调整电压 Vadj 5 0 V ADJ 0V 最亮 EFFICIENCY 效率 Eff 80 Vin 12V Von off 5V Vadj 0V RL panel LAMP CURRENT 灯管电流亮 IL 53 58 60 mA Vin 12V Von off 5V Vadj 0V RL panel LAMP VOLTAGE 灯管工作电压 VL 48 54 60 Vrms Vin 12V Von off 5V Vadj 0V RL panel OUTPUT OPEN 开路保护 VL Vin 12V Von off 5V Vadj 0V RL KΩ 1 5 LED General Requirements PARAMETER 参数 SYMBOL 符号 TYPICAL 典型值 L...

Page 28: ...Note 4 Safety 安全规格 The power supply shall compliance with the following Criterion 电源安全性满足下列标准 1 IEC60950 UL60950 IEC60065 GB4943 2001 4 5 6 LED LED 6 LED LED ADJ DC500V 40MΩ Min at room temperature Pin No 引脚号 Symbol 符号 Description 描述 AC 3 0KV 1 minute 10mA Max Ground L 2 Pin Connection 连接器脚位定义 Pin No 引脚号 GND Brightness ON OFF Control 12V ON OFF 1 2 7 Input To Output Input To Output NC NC Descripti...

Page 29: ...ement 工作环境 6 1 Temperature 环境温度 Operating 0 to 40 Store 10 to 70 6 2 Humidity 环境温度 Operating From10 to 90 relative humidity non condensing Store From 5 to 95 relative humidity non condensing 6 3 Altitude 海拔高度 Operating To10 000ft Store To20 000ft 6 4 Cooling Method 冷却方式 Ventilation cooling 6 5 Vibration 振动耐受 10 55Hz 29 4m s2 3G 3minutes period 60minutes each along X Y and Z axis 6 6 Impact 冲击耐受 19...

Page 30: ...9 Housing ASSEMBLY DRAWING 结构尺寸第 30 页共 57 页 ...

Page 31: ...系列公司名称东莞乐科电子有限公司机种名称拟制日期审核尺寸版本批准第 31 页共 57 页 ...

Page 32: ...eet GB17625 1 1998 IEC61000 3 2 class D Leakage Current 泄漏电流 Less Than 0 75mA 230Vac input Standby Power Loss 待机功耗 0 3W 240Vac input Input Fuse 输入保险 T3 15AL 250Vac 1 2 Output Electrical Characteristics Overview 输出特性 1 2 1 Table 2 Output Voltage Current Regulation 输出调整率 Output Voltage 输出电压 Regulation 调整率 Min current 最小电流 Rated current 额定电流 Peak current 峰值电流 12V 12V 5 4A 4 5A Note pulse width within...

Page 33: ...ition rate of 50Hz to 10kHz 以 50 10KHz 的频率跳变负载来测试 1 2 4 Table 5 DC Output Hold Up Time 输出保持时间 Output Voltage 120Vac input 220Vac input 12V 5 mS 5 mS Note All of dc output at full load 所有输出带满载 1 2 5 Table 6 DC Output Overshoot At Turn On Turn Off 输出超调 Over shoot voltage V 超调电压 Output Channel Output V Turn on 开机 Turn off 关机 12V 12V 10 5 Note All of dc output current from Min to Max 测试时负载范围最小到最大 1 2...

Page 34: ...y shall be test at max AC voltage 264Vac and min load or no load 应该在最大交流输入电压 264 伏和轻载空载下测试 1 3 2 Table 10 DC Output Over current Protection 输出过流保护 Output Voltage Over Current Comments 12V 4 5Atyp Hiccup 尝试重复启动 1 3 3 Table 11 DC Output Short Circuit Protection 输出短路保护 Output Voltage Comments 12V Hiccup 尝试重复启动 Note 1 4 4 Reset After Shutdown 保护功能复位 the power supply will restart after the fault remov...

Page 35: ...pply shall compliance with the following Criterion 电源安全性满足下列标准 1 UL60950 2 EN60950 3 GB4943 1995 4 EMC 电磁兼容性 4 1 EMI 电磁干扰 The power supply shall compliance with the following Criterion 电源电磁干扰满足下列规则 1 Conduction Emission 传导干扰度 EN55022 CLASS B GB9254 CLASS B FCC PART15 CLASS B 2 Radiated Emission 辐射干扰度 EN55022 CLASS B GB9254 CLASS B FCC PART15 CLASS B 整机测试时建议交流输入线套 u 值 850 磁环第 35 页共 57 页 ...

Page 36: ...10 to 40 Store 20 to 80 5 2 Humidity 环境湿度 Operating From 10 to90 relative humidity non condensing Store From 5 to 95 relative humidity non condensing 5 3 Altitude 海拔高度 Operating to10 000 ft Store to 20 000ft 5 4 Cooling Method 冷却方式 Ventilation cooling 自然冷却 5 5 Vibration 振动耐受 10 55Hz 49 0m s 5G 3minutes period 60minutes each along X Y and Z axis 5 6 Impact 冲击耐受 196 1m s 20G 11ms once each X Y and Z...

Page 37: ...E 2 0MM 6PIN NO Pin Connection Function 1 GND 2 GND 3 NC 4 NC 5 12V 6 12V Table 15 CON3 Connection And Function TYPE 2 0MM 12PIN NC NO Pin Connection Function Table 16 CON1 Connection And Function NO Pin Connection Function 1 AC L AC INPUT LINE 2 AC N AC INPUT NUTURE 第 37 页共 57 页 ...

Page 38: ...LK SP104804A 10 Power Supply Mounting 安装尺寸 Fig 9 1 Mount Method 装配注意事项电源为横装结构散热器应有良好自然通风散热器离外壳金属板间距应大于 5mm 不足应加绝缘处理第 38 页共 57 页 ...

Page 39: ...oard using M3 screw The maximum value of the tightening torque is 0 4N M The insertion depth of the screw should be less 5 5mm D 5 5mm 1 H 6 0mm 底部进风口留 20cm 进风空间 Fig 9 2 Derating urve 0 20 40 60 80 100 120 10 0 25 50 60 H D PCB SPS UNIT 130 0m Nature wind TOP BOTTOM 第 39 页共 57 页 ...

Page 40: ...R9 R16 R29 R12 R8 t RT1 1 2 3 4 L1 R38 R37 R36 R13 CON1 R21C 7 12 2 4 6 1 8 11 3 T1 R15 D7 R10 R11 ZD1 C5 R18 R17 D4 D3 D1 D2 CY1 CY2 R14 R2 R1 C7 C10 L3 C14 R31 R24 C11 R25 IC2 R34 PS ON R35 5VSB 12V 1 2 3 4 5 6 7 8 9 10 11 12 CON2 GND 12V R26 D8 PC1A PC1B C8 GND 1 2 3 4 6 5 IC1 R21A R21 R21B R28 R20 R19 5V T3 15AL 250Vac 第 40 页共 57 页 ...

Page 41: ...r Stand MDJF05D A I 1 Key Konb 7 button MDJF06H I 2 Support for speaker MDJF09N I 1 plastic mount for power cord MDJF21 AA I 1 side jack terminal MDJF22 AA I 1 buttom jack terminal MDJF23 I 1 assy for stand MDHA21 I 2 metal Stripe for panel MDHA22 I 1 metal mount for panel_h_2mm MDJF26 I 1 metal mount for panel_h_0mm SCA 304R0FF I 4 screw GB818 87 M3 4 SCAC40012FD I 3 screw GB90748 88 M4 12 SCC 30...

Page 42: ...tom MA3X0016B AI 1 Rear label 15A19L14G35HY 1 carton handle MG3X0020 EI 2 Sawtooth belts MA3X0222B 2 label MF2X0001A I 1 waranty card MA3X0224A I 1 Promo_stickers MF1X0006B I 1 Energy label 23120230M20SY 1 acetate tape 200mm MA4X0061 AI 1 Non Woven 10mm 0 3mm 450mm STV 22LED3 BOM LIST 第 42 页共 57 页 ...

Page 43: ...peaker MDJF09N I 1 plastic mount for power cord MDJF21 AA I 1 side jack terminal MDJF22 AA I 1 buttom jack terminal MDJF23 I 1 assy for stand MDJF24 I 2 metal Stripe for panel MDJF25 I 1 metal mount for panel_h_5 5mm MDJF26 I 2 metal mount for panel_h_0mm SCA 304R0FF I 4 screw GB818 87 M3 4 SCAC40012FD I 3 screw GB90748 88 M4 12 SCC 306R0FD I 4 screw GB818 87 M3 6 SCC 308R0FD I 3 screw GB818 87 M3...

Page 44: ...1 carton handle MG3X0020 EI 2 Sawtooth belts MA3X0005 AI 2 PVC pad MA3X0222C 2 label MF2X0001A I 1 waranty card MA3X0224A I 1 Promo_stickers MF1X0006C I 1 Energy label 23120230M20SY 1 acetate tape 200mm MA4X0061 AI 1 Non Woven 10mm 0 3mm 450mm STV 24LED3 BOM LIST 第 44 页共 57 页 ...

Page 45: ...2 is 3 3V Power on and check if R115 Y N Change U12 Power on and check if R115 is 3 3V Y Check if PIN3 of Q10 is 12Vand PIN3 of Q11 is 5V Y N Check if U13 U11 U3 and Check if U8 is Change Q10 Q23 Q24 Q11 OK U12 is 1 5V 3 3V and1 2V 1 15V OK Change the defective components Y N Y N Check U8 L3and surrounding components g components 第 45 页共 57 页 ...

Page 46: ... software OK Old software is wrong Y N Check if the LVDS cable is correct and connected tightly Y N Check if the voltage of CN11_PIN1 is OK Determined by the screen N Y Check the circuit between U1 and CN11 Y N Change the LVDS cable Check Q1 Q4 d CN Change U1 Change the defective t and CN5 Change U1 components 第 46 页共 57 页 ...

Page 47: ...ck if the voltage of CN3_PIN3 BLON Signal is high level White screen N Check if the voltage of CN3_PIN4 is normal 1 Check Q3 and surrounding components Y N Check if inverter power is normal N Y 1 Check Q3 and surrounding components 2 Upgrade software again Check the circuit between CN3_PIN3 and U1_PIN138 Check power board Inverter is broken 第 47 页共 57 页 ...

Page 48: ...is signal on CN17 N Y N N Check if U10_PIN7 is 12V Y Ch k if th lt f Y Check if the voltage of U10_PIN8 is higher than 8 5V N Ch k if U1 PIN201 203 N Check the Check Check if U1_PIN201 203 have signal output Y N Change U1 power supply circuit Reset Check Speaker Q25 Q27 Q 26 is ok Check the circuit between U1_PIN201 203 and U10_PIN1 9 第 48 页共 57 页 ...

Page 49: ...heck if U1_PIN194 196 have audio signal N N Y Check if the voltage of U1_PIN197 is 3V Check R384 Sound Sound N audio signal Check if the voltage of U15_PIN16 is 5V N Y N Change C54 Check if the voltage of C54 is 1 5V Check R139 N Check if the control signal of U15_PIN9 10 are normal Y Check U6_PIN93 128 Change U1 Y Y Check if the audio signal of U15_PIN3 13 are normal Check C239 C240 Y Change the ...

Page 50: ...hange T1_PIN10 11 and U18_PIN45 46 components Y N T1_PIN4 PIN9 is between 0 and 2 5V Check RF_AGC circuit such as R308 T1 ATV can t scan any channel DVB T T2 C can t scan any channel Check if U1 PIN217 Y C67 R309 and C147 R333 R334 R335 C222 Check RP2 Check if U6_PIN122 Change U1 Check if U1_PIN217 220 have TS signals Y N 1 Check if 3 3V 1V power supply of U6 are normal 2 Check if frequency of 27M...

Page 51: ...7 Function Trouble 7 Function Troubleshooting HDMI HDMI HDMI does not has the signal g 1 HDMI interface false welding 2 System setting wrong do reset 第 51 页共 57 页 ...

Page 52: ...1_PIN150 151 are normal Y N Y N Do Auto adjust process The data of white balance is wrong Check the circuit between U1 PIN152 1 Check the circuit between U1 PIN150 151 OSD setting doesn t match reset again or Check the circuit between U1 PIN150 151 process wrong initial EEPROM setting U1_PIN152 1 56 and R G B signals of CN24 U1_PIN150 151 and VS HS signals of CN24 input mode doesn t support _ and ...

Page 53: ...ck if the voltage of Check the circuit between CN13_PIN20 and U1_PIN175 D2 6 C190 C191 R229 R230 signals of U1_PIN163 165 166 are normal between CN13_PIN19 and U1_PIN169 g Q17 and Q19 are 12V circuit between CN13_PIN8 and U1_PIN143 D3 0 R248 R250 1 Check Check the R G B Y N Check the circuit between N Y C73 R62 2 The data of white balance is wrong initial EEPROM circuit between CN13_PIN7 11 1 5 an...

Page 54: ...CVBS signal of U1_PIN181 is normal Check Change C58 and R59 Y N Check if U1_PIN157 161 have Check if U16_PIN2 5 Y N have signals PIN1 are normal Y Y N Change U1 U6_PIN92 161 have signals 11 have signals Check if D9 C146 C14 9 R144 R145 and R150 are O Y Y N N Check the circuit between U16_PIN4 7 9 and U1 PIN157 161 Y N Check C74 and R63 OK Ch CN22 Change the d f ti Check the circuit between CN9 and...

Page 55: ...STV 22LED3 Line Diagram 第 55 页共 57 页 ...

Page 56: ...STV 24LED3 Line Diagram 第 56 页共 57 页 ...

Page 57: ...SOFTWARE UPDATE Copy the BIN file to USB when the TV in the standby state Insert the USB to main board This indicator lights When the light is extinguished software upgrade complete 第 57 页共 57 页 ...

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