Service Manual LCD TV MODEL:LC26T1E/LC32T1E/LC37T1E/LC42T1E Amoi Notice: Please read this manual and the user’s manual before repairment. This manual is just for reference.
After-sales Service manual Model: LC26T1E/LC32T1E/LC37T1E/LC42T1E Contents 1．Preparation before maintenance…………………………………………………1 2．Product Specifications……………………………………………………………2 3．Electric connection chart…………………………………………………………3 4．Block diagram of electric ………………………………………………………6 5．Work Principle …………………………………………………………………12 6．Schematic Diagrams……………………………………………………………17 7．Internal Block Diagrams & IC’s ………………………………………………60 8．Software version view and upgrade instruction ………………………………97 9． Exploded Views-Mechani
1、Preparation before maintenance 1.1、Master basic information. Adequate communication with customers is required, to learn how the trouble happens and what the status is. This will help to promote effect and efficiency of the service. Learn if the trouble has conflict with technical standards. 1.2、Reappearance of the trouble. Please assure: a. If the trouble exists as the customer described, and make initial judgment of the status, then decide what to do next; b. If any other trouble exists; c.
2.Specifications MODEL Power Supply LC26T1E LC32T1E LC42T1E LC37T1E Input: AC 100-240V 50Hz/60Hz Input: AC 100-240V 50Hz/60Hz Input: AC 100-240V 50Hz/60Hz Input: AC 100-240V 50Hz/60Hz Standby: < 1W Standby: < 1W Standby: < 1W Standby: < 1W 130W 150W 200W 220W Audio System BG/ DK/I /L/L ' BG/ DK/I /L/L ' BG/ DK/I /L/L ' BG/ DK/I /L/L ' TV System PAL, SECAM PAL, SECAM PAL, SECAM PAL, SECAM Sync: H/V Separate, TTL, P. or N. Sync: H/V Separate, TTL, P. or N. Sync: H/V Separate, TTL, P.
INVERTER BOARD J1 8pin J5 6pin side board JV106 16pin JV601 4pin To loudspeakers To J12 3pin 3.
INVERTER BOARD J1 8pin J5 6pin side board JV106 16pin JV601 4pin To loudspeakers To JV102 30pin JV101 30pin JV402 5pin Updata for MCU JF6 13pin J12 3pin 3.
S-I/O J101 16pin INVERTER BOARD JF1 POWER J12 16pin J8 5pin IR BOARD J32 2pin J33 2pin JF5 12pin 12pin J9 10pin J22 5pin J6 8pin 30pin J13 KEY BOARD JF6 3.
4.1.1、The （USE block FOR diagram of POWER LC32T1E/LC37T1E/LC42T1E） U1 ML4800 for PWM +24V T11 -12V LINE FILTER +12V U3 FS7M0880 T12 +3.
、 （USE FOR LC26T1E） U3 FS7M0880 LINE FILTER T5 U1 ML4800 T6 U2 FSD200 T4 +24V -12V +12V +5V +18V +3.
HDMI signal 4.
AV-Audio VGA-Audio Form JR2 Form MIC2 S2-Audio SIF of Audio Digital TV Sound TDA9875 UV505（I/O board） Form TUNER board SPDIF UV103 74HC04 class-D audio power amplifier U101 NJM4556 Earphone output Drive amplifier Loudspeakers UV602 TPA3100 HDMI-Audio OUTPUT TO UV102 UV506 Two step AV OUTPUT TO SCART2 filter circuit UV504 Two step AV OUTPUT TO SCART1 filter circuit UV503 Two step filter circuit UV502 Two step filter circuit UV601 NJW1137 BBE processor (USE FOR LC32T1E/LC37T1E/LC42T1
、 （USE FOR LC26T1E） J705: From I/O Board Audio Signal J706: From I/O Board SIF Signal U15 TDA9875AH Sound Processor I2C Signal U11 DDR-SDRAM 128M Control Signal U12 DDR-SDRAM 128M Panel Control Signal: BKLON and ANAPWM J704: From POWER Board U9 PW106B-10L ImageProcessor LVDS Signal I2S Audio Signal U13 29LV160CTTC-70 Flash ROM POWER: +5V,+3.
、 （USE FOR LC26T1E） Update Control Signal U6 RX-8025SA TIME CONTROLLER I2C Control For MCU U16 NJM4558M Amplifier Scart2 Audio Output I2C Control For TUNER J9: From TUNER Board I2C Control For Switch J18 SCART2 CVBS YC Video Audio Signal TV Audio CVBS Signal Signal Input AV CVBS Signal Output J8: From IR Board J6: From KEY Board KEY Signal U17 NJM4558M Amplifier J3 RCA Main Audio Signal A/V SIGNAL SWITCH FB1 MCU TV CVBS Video CVBS Audio Signal Signal Output U15 NJM4558M Amplifier POWER:
5、Work Principle The product mainly handles with video signal, such as RF (cable TV), CVBS(composite video), S-VIDEO(Y/C signal), YPbPr(progressive video), SCART, DTV signal, VGA and HDMI, as well as audio signal amplifying output. AV includes S-VIDEO and CVBS. In addition, it can input VGA and other signals to realize PIP function. Because the product is comprised of three boards, the work principle will separate into three parts as follows: 5.1、Work Principle of Power Board 1.
current is limited, and the 380V voltage of PFC will descend. Actually, the current is limited when the peak value of this board is 0.7V. The pin 4 is a line voltage detecting pin. It detects the input AC Voltage, and when the 264V voltage becomes lower to about 80V, the amplifying ratio of the 4th pin is higher, and the duty cycle of the pin 12 of FPC is higher, the current to the PFC is higher. So when the input voltage decreases, the power output to C27 will not change. The pin 2 is power detecting pin.
switch into LVDS signal to send it to PANEL for processing. 3、flow of main video signal process： CVBS composite video signal of TUNER (including TUNER signal) and S-VIDEO signal is output to PW106 of SCALER board via 2069 of IO board. PW106 handles with the input video signal, such as resolution and field switch, OSD overlapping, multi-window handling, to switch into PANEL-required resolution. And LVDS channel transports the picture data to PANEL and finally the correct picture is displayed on PANEL.
check if the EAR-INT signal is abnormal, which is in order to avoid wasting time on checking amplifier. Regarding the connecting with IO board, it is important that I2C signal connects with MCU （MCU-INT、SCL－MCU、SDA－MCU）. If there is any problem with the connecting, then the key and remote control work out. 5.3、Work Principle of I/O board 1、I/O board mainly: inputs & outputs AV signal, switches audio and video, amplifies audio, control mini MCU and process key.
be realized by one video IC. c）Mini MCU module：remote and key signals receiving. The remote and key signal receiving is dependent, but the processing modes in MCU are the same. If the remote control and key both work out, then judge if the power supply and peripheral circuit of MCU is normal. If only one works out, check if PIN21 of U202 IR or PIN26-28 has signal input.
6.1.
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5 4 3 2 1 VCC CVBS1 36 L5 560nH C64 C65 C66 270pF 470pF 47pF R74 for YPbPr R73 for SCART Y-SOG2 Y-SOG2 R73 1 75 75 75 R74 75 L4 10nH 2 PB2 R112 36 L7 560nH C67 C68 C69 270pF 470pF 47pF SCART2-Ro SCART2-Go L6 10nH R81 SCART2-Bo C113 C114 75SMUXF2 C115 C116 GMIN0 SMIN0 BMIN0 .047uF .047uF 0.1uF .
5 4 3 2 1 D D V18 V18 1 ADJ 4 Vo2Vo4 2 Vin C295 0.1uF C296 100uF C270 470uF C271 R223 0.1uF 0_NS R224 0 C272 0.1uF_NS C273 0.1uF 1 C294 0.1uF_NS C274 470uF 2 R235 0 1 R234 0_NS U18 LM1117-2.5 2 0.1uF_NS C292 100uF 2 C289 V25 V25SWADJ 1 V20SWADJ 1 V33AADJ 3 Vin 3 2 V25 ADJ L65A 1 L64A Vo2Vo4 C279 47uF 0.1uF 2 1 C278 VCC U23 LM1086-1.8_TO263 4 V33 2 0_NS U21 LM1117-3.3 R231 0.1uF VCC 0 0.1uF_NS 0_NS C288 0 0.
5 4 3 2 1 D D V33 ROMOEn ROMWEn SW1 SW_MOM_4P R178 1K R179 RESET 2 RSTn AF9 AE9 AE8 AC8 C187 1uF V33 R186 R187 100 100 EXTRSTEN ADR24B UPINT UPINT R194 FB1 100 C TMS TDO TDI TCK AE10 AD9 AF10 AD8 AC20 RESETB EXTRSTEN ADR24B TRSTN EXTMCLK AD17 AE18 EXTINT0 EXTINT1 AB8 AA8 AF8 AF7 TESTMODE0 TESTMODE1 TESTMODE2 SCANMODE U9D PW106 V33 1 B NMI NMI1 R191 2 SW2 SW_MOM_4P 10K NMI CPU AD16 RD AF17 WR AC19 ROMOE AE17 ROMWE AF18 CS0 AD18 CS1 AE26 NMI AC15 AE16 AF16 A
5 4 3 2 1 RMD[31:0] V25 D C RMD0 RP36-4 RMD1 RP36-3 RMD2 RP36-2 RMD3 RP36-1 RMD4 RP37-4 RMD5 RP37-3 RMD6 RP37-2 RMD7 RP37-1 RMD8 RP38-1 RMD9 RP38-2 RMD10 RP38-3 RMD11 RP38-4 RMD12 RP40-4 RMD13 RP40-3 RMD14 RP40-2 RMD15 RP40-1 RMD16 RP42-1 RMD17 RP42-2 RMD18 RP42-3 RMD19 RP42-4 RMD20 RP43-3 RMD21 RP43-4 RMD22 RP50-4 RMD23 RP50-3 RMD24 RP45-3 RMD25 RP45-4 RMD26 RP43-1 RMD27 RP43-2 RMD28 RP47-4 RMD29 RP47-3 RMD30 RP47-2 RMD31 RP47-1 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22
5 4 3 2 IN0CLK R101 IN0PEN R102 IN0CLK IN0PEN IN0RE[9:2] D IN0GE[9:2] IN0BE[9:2] C IN0CLK IN0PEN R103 R104 0 0 IN0AHS IN0HS IN0VS IN0AHS IN0HS IN0VS 1 C3 D4 E6 C4 B3 A2 D5 IN0CLK IN0PEN IN0VBI IN0AHS IN0HS IN0VS IN0FLD IN0RE2 IN0RE3 IN0RE4 IN0RE5 IN0RE6 IN0RE7 IN0RE8 IN0RE9 A9 D10 B9 A8 E13 C9 E12 B8 D9 A7 IN0R0 IN0R1 IN0R2 IN0R3 IN0R4 IN0R5 IN0R6 IN0R7 IN0R8 IN0R9 IN0GE2 IN0GE3 IN0GE4 IN0GE5 IN0GE6 IN0GE7 IN0GE8 IN0GE9 C8 B7 E11 A6 E10 D8 E9 C7 E8 B6 IN0G0 IN0G1 IN0G2 IN0G3 IN0G4 IN0
5 4 3 2 1 0_NS R357 D D R356 0_NS R358 0_NS J301 VCC R360 R361 R362 ANAPWM BKLONOFF 47 0 0 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 TXE0TXE0+ PW106 DR0 DR1 TXOCp_DR2 TXOCm_DR3 TXO2p_DR4 TXO2m_DR5 TXO3p_DR6 TXO3m_DR7 TX04p_DR8 TXO4m_DR9 C23 A25 B24 B23 A23 A24 A21 B21 A22 B22 RDR0 RDR1 RDR2 RDR3 RDR4 RDR5 RDR6 RDR7 RDR8 RDR9 RP53-4 RP53-3 RP53-2 RP53-1 RP52-2 RP52-3 RP54-2 RP54-3 RP52-1 RP54-4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47
5 4 3 2 CON50 C VCC R48 R49 47 47 SCL SDA SCL SDA COAXIAL-OUT R18 0 COAXIAL-OUT U5 1 2 3 4 5 6 7 SCKI I2SR-HDMI 47 47 47 47 RESETn CAD-SCTD CAD-INT CAD-HPJ IN0RE[9:2] ADCR7 ADCR6 ADCR5 ADCR4 ADCR3 ADCR2 ADCR1 ADCR0 RP1-1 RP1-2 RP1-3 RP1-4 RP2-1 RP2-2 RP2-3 RP2-4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 IN0RE9 IN0RE8 IN0RE7 IN0RE6 IN0RE5 IN0RE4 IN0RE3 IN0RE2 ADCG7 ADCG6 ADCG5 ADCG4 ADCG3 ADCG2 ADCG1 ADCG0 RP3-1 RP3-2 RP3-3 RP3-4 RP4-1 RP4-2 RP4-3 RP4-4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47
5 4 3 2 1 VCC V5-JPEG L61 22uH/5A MOSFET P 2 3 V33 J708 1 2 3 4 1 2 3 4 R243 1 C325 0.1uF 2 1 R256 100K 2 1 JM11 R244 4.7K 4 HEADER D VCC 2 3906 3 3 Q7 MMBT3904 R241 2 2 1 D BKLONOFF 1 1 R257 3.3K DIN-T18-STB Q8 4.7K_NS 3.3K R242 3.3K 3 R240 4.7K BKLON 1 Q9 MMBT3904 2 BKLON V12 JM12 10K VCC 1 C R245 47.5K 3 + 2 - V12 U25A ANAPWM ANAPWM VCC LM358_SO8 1 1 1 Q10 MMBT3904 VCC C315 0.
4 3 0 0 R126 R127 R128 VCC J701 1 2 3 4 D13 E18 D14 I2SICLK0 I2SIWS0 I2SID0 C13 E17 A13 I2SICLK1 I2SIWS1 I2SID1 E19 THRWSC E20 B25 RXD0 TXD0 A26 D22 RXD1 TXD1 IRRCVR C24 E21 D23 IRRCVR0 IRRCVR1 IRRCVR2 R129 R131 R133 R134 R136 R138 R139 100 100 100 100 100 100 100 M1 M2 N6 N1 N5 N2 N3 N4 PORTA0 PORTA1 PORTA2 PORTA3 PORTA4 PORTA5 PORTA6 PORTA7 R144 R145 R147 R151 R153 R155 100 100 100 100 100 100 M3 K2 M4 K1 L4 L1 L2 L3 PORTB0 PORTB1 PORTB2 PORTB3 PORTB4 PORTB5 PORTB6 PORTB7 USBVDD
5 28 4 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 FB_1K_OHM_200MA L51 V18ADC 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 3 V18 V18 C230 C231 C232 0.1uF 0.1uF 0.1uF 0.1uF V18 V18 V18 C241 C242 C243 C244 C245 C246 C247 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF C249 C250 C251 C252 C253 C254 0.1uF 0.1uF 0.1uF 0.1uF 0.
5 4 3 2 V33 V33 R274 10K VCC VCC V33 V33 R275 10K VCC 1 VCC R283 4.7K R284 4.7K V33 R285 4.7K V33 R286 4.7K VCC R287 4.7K R288 4.7K R276 4.7K V5SDA V5SCL D R339 R338 0 D+5V D+5V 0 A+5V R387 C168 C169 C170 C171 C172 C173 10uF 10uF 1500pF 10uF 10uF 1500pF R388 100 100 SCART2-ROUT 0 R379 R389 1 C22 0 C166 A+5V C167 10k R384 L28 120 C2 SIF1 47pF D+5V C25 2.2uF C26 2.2uF C28 2.2uF C30 2.2uF MAIN-LOUT MAIN-ROUT EAR-ROUT UPSCL L27 120 0.01uF 0.
2006.05.
2006.05.
2006.05.
2006.05.
6.2.
35
5 4 3 2 1 VCC U7 PrM D SEL-STB VCC 16 DA DB DC DD 4 7 9 12 EN GND 15 8 J404 8 7 6 5 4 3 2 1 R-STB 8 7 6 5 4 3 2 1 G-STB B-STB R33A R33B R34A R34B 0_NS 0_NS 0_NS 0_NS R31A R31B 0_NS 0_NS R32A R32B 0_NS 0_NS R46 R45 R44 R43 R42 R41 R40 R27 PB2 PR2 C VCCG VCCG 15 5 10 14 4 9 13 3 8 12 2 7 11 1 6 B 2 3 1 1 P2 D17 3 BAV70L 4.7K C38 C39 C40 C41 C42 C43 120pF 120pF 120pF 120pF 120pF 120pF 3.3K 3.3K R29 R30 VSEL1 3.3K 3.3K S-CVBS R27A R22 VCCG U3 4.
5 4 3 2 CON50 0.1uF COAST 47uF 1 R58 2 1 R59 75 2 1 R60 75 2 75 C44 C45 RC0603N RC0603N RC0603N 0 0.1uF_NS 0_NS 0.1uF A C58 C59 0.1u 0.1u CC0603N CC0603N 1 R20 R19 V33AADJ1 C179 0.1uF C178 0.1uF 1 C188 100uF 2 C186 0.1uF C185 0.1uF C176 0.1uF C175 0.1uF C174 0.
4 L9 560nH C70 C71 270pF 470pF C67 C68 270pF 470pF C69 47pF L6 10nH C72 SW2-SOG R73 R78 SW2-SOG S-CVBS 75SMUXF1 75 47pF L8 10nH YP1 YP1 R114 36 C73 L11 560nH C74 270pF 470pF R74 75 PB1 PB1 R115 C75 C76 47pF 270pF L10 10nH 36 L13 560nH C77 470pF BMIN1 47pF 47pF R81 R69 R98 R82 R84 FB2 ASP1 ASP2 FB_11_OHM_500MA L40 FB_11_OHM_500MA L41 FB_11_OHM_500MA L42 RAIN GAIN GAIN BAIN BAIN R87 R88 R89 B 75 75 75 C117 .047uF GAIF C118 .047uF 3.
5 4 VCC 3 R270 4.7K R271 4.7K R290 R R291 R R292 R R293 R R294 R R295 R R296 R R297 R298 R R R299 R300 R R301 R R302 R R303 R R R304 R R305 R R306 R R306 R YP1 PB1 V5SDA V5SCL V33 V33 JM1 2N7002 PR1 YP2 PB2 JM2 2N7002 R272 4.7K V33 R273 4.7K PR2 SDA1 SCL1 V33 VCC R274 10K C FB1 From Pin16 FB2 From Pin16 ASP1 From Pin8 ASP2 From Pin8 R275 10K of of of of SCART1 SCART2 SCART1 SCART2 I2SL-HDMI I2SR-HDMI COAXIAL-OUT ASP1 FB1 ASP2 FB2 FB1 FB2 DVD-IR DVD-L DVD-R R276 4.
3 0 R108 0 DO NOT STUFF R105 0_NS R107 0_NS GTXD GRXD D R126 R127 R128 J701 1 2 3 4 TXD RXD I2SICLK0 I2SIWS0 I2SID0 C13 E17 A13 I2SICLK1 I2SIWS1 I2SID1 E19 THRWSC E20 B25 RXD0 TXD0 A26 D22 RXD1 TXD1 IRRCVR C24 E21 D23 IRRCVR0 IRRCVR1 IRRCVR2 R129 R131 R133 R134 R136 R138 R139 R140 100 100 100 100 100 100 100 100 M1 M2 N6 N1 N5 N2 N3 N4 PORTA0 PORTA1 PORTA2 PORTA3 PORTA4 PORTA5 PORTA6 PORTA7 STBAMP EARST UPSDA UPSCL TSDA TSCL DIN-T18-STB BKLON R143 R144 R145 R147 R151 R153 R155 10
5 4 3 2 1 RMD[31:0] V25 D C RMD0 RP36-4 RP36-3 RMD1 RP36-2 RMD2 RP36-1 RMD3 RP37-4 RMD4 RP37-3 RMD5 RP37-2 RMD6 RP37-1 RMD7 RP38-1 RMD8 RP38-2 RMD9 RP38-3 RMD10 RP38-4 RMD11 RP40-4 RMD12 RP40-3 RMD13 RP40-2 RMD14 RP40-1 RMD15 RP42-1 RMD16 RP42-2 RMD17 RP42-3 RMD18 RP42-4 RMD19 RP43-3 RMD20 RP43-4 RMD21 RP50-4 RMD22 RP50-3 RMD23 RMD24 RP45-3 RP45-4 RMD25 RP43-1 RMD26 RP43-2 RMD27 RP47-4 RMD28 RP47-3 RMD29 RP47-2 RMD30 RP47-1 RMD31 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22Ω*4 22
5 4 3 2 1 D D V33 ROMOEn ROMWEn RSTn V33 R186 R187 C AF9 AE9 AE8 AC8 C189 0.
5 4 43 0.1uF V25 V25 V25 V25 V25 V25 V25 V25 V25 V18 PW106-10_ 2 3 V18 V18 V18 C227 C228 C229 C230 C231 C232 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF V18 V18 V18 C241 C242 C243 C244 C245 C246 C247 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF U9E V33 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF FB_1K_OHM_200MA L51 V18ADC 0.
5 4 3 2 R356 0_NS C23 A25 B24 B23 A23 A24 A21 B21 A22 B22 RDR0 RDR1 RDR2 RDR3 RDR4 RDR5 RDR6 RDR7 RDR8 RDR9 RP53-4 RP53-3 RP53-2 RP53-1 RP52-2 RP52-3 RP54-2 RP54-3 RP52-1 RP54-4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 47Ω*4 DR0 DR1 DR2 DR3 DR4 DR5 DR6 DR7 DR8 DR9 D19 D18 C20 C19 B20 A20 B19 A19 B18 A18 RDG0 RDG1 RDG2 RDG3 RDG4 RDG5 RDG6 RDG7 RDG8 RDG9 DB0 DB1 TXE0p_DB2 TXE0m_DB3 TXE1p_DB4 TXE1m_DB5 TXECp_DB6 TXECm_DB7 TXE2p_DB8 TXE2m_DB9 C17 D16 B17 A17 B16 A16 B15 A15 B14 A14 RD
5 4 3 2 1 D D V18 V18 V25 ADJ Vo2Vo4 4 U18 LM1117-2.5 1 Vin 3 2 C295 0.1uF C296 100uF C270 470uF C271 R223 0.1uF 0_NS R224 0 C272 0.1uF_NS C273 0.1uF C274 470uF 2 C294 0.1uF_NC 1 R235 0 2 R234 0_NC 1 C292 100uF 0.1uF_NS V25SWADJ 2 C289 1 V20SWADJ 1 4 Vin 2 R231 0.1uF V25 ADJ L65A Vo2Vo4 L64A 47uF 1 C279 2 0.1uF VCC U23 LM1086-1.8_TO263 2 0_NS C278 0 C288 0.1uF_NS R230 C287 0 0.
5 4 VCC C325 0.1uF V5-JPEG MOSFET P 2 3 L61 22uH/5A 1 2 3 1 2 3 4 V33 1 2 3 D 2 R244 4.7K Q8 4.7K 2 3906 3 3 R257 2 1 3.3K 1 Q7 MMBT3904 D BKLONOFF R241 2 1 DIN-T18-STB 1 VCC R243 4 HEADER 1 2 J708 J708 1 2 3 4 1 R256 100K 2 1 JM11 3 3.3K R242 3.3K BKLON V12 3 R246 1 47 ANAPWM C327 0.1uF ANAPWM C315 VCC Q10 MMBT3904 C314 V33 2 1 2 0.1uF 1000uF 10V R251 10K PWM 5 + 6 - 22uH/5A 22uH/5A L65 L66 22uH/5A 22uH/5A C316 0.
47
48
49
50
51
6.3.
53
54
55
56
57
58
5 4 3 2 1 小IO BOARD D D +5V C1 NC AFB1 AR15 AR2 NC CVBS3-IN 3 FB 2 JP4 +5V 6 5 4 3 2 1 6 5 4 3 2 1 AR1 1 C2 NC 82 Q1 C3 NC BAV99 CVBS3-AR AR4 6.8K AR5 NC 2.2K ERJI 1 2 3 4 5 6 7 8 9 10 11 12 13 AFB17 AFB18 FB FB CVBS3-AR CVBS3-AL CVBS3-IN FB AFB11 FB FB AFB12/100 S3-Y AFB14 S3-C EARST +5V HEAD-ROUT HEAD-LOUT K3 CONN RCPT 13 CVBS3-AL AR7 6.8K AR8 NC C C5 NC 2.2K AFB8 4.
IC PW106 60
61
62
63
64
65
66
67
68
69
70
71
72
IC 29LV800TA 73
1. A15 2. A14 3. A13 4. A12 5. A11 6. A10 7. A9 8. A8 9. N.C. 10. N.C. 11. WE 12. RESET 13. N.C. 14. N.C. 15. RY/BY 16. A18 17. A17 18. A7 19. A6 20. A5 21. A4 22. A3 23. A2 24. A1 25. A0 26. CE 27. VSS 28. OE 29. DQ0 30. DQ8 31. DQ1 32. DQ9 33. DQ2 34. DQ10 35. DQ3 36. DQ11 74 37. VCC 38. DQ4 39. DQ12 40. DQ5 41. DQ13 42. DQ6 43. DQ14 44. DQ7 45. DQ15/A-1 46. VSS 47. BYTE 48.
IC CXA2069Q 75
1. V1 17. Y3 33. SCL 49. YIN1 2. LV1 18. RV3 34. SDA 50. BIAS 3.Y1 19. C3 35. AGND 51. CIN1 4. RV1 20. S2-3 36. DC OUT 52. LOUT1 5. C1 21. S-3 37. COUT3 53. VOUT1 6. S2-1 22. V4 38. LOUT3 54. ROUT1 7. S-1 23. LV4 39. YOUT3 55. TRAP1 8. V2 24. Y4 40. ROUT3 56. YOUT1 9. LV2 25. RV4 41. VOUT3 57. VGND 10. Y2 26. C4 42. VCC 58. COUT1 11. RV2 27. S2-4 43. LOUT2 59. LV6 12. C2 28. S-4 44. V/YOUT2 60. V6 13. S2-2 29. LV5 45. ROUT2 61. RV6 14. S-2 30. V5 46.
IC 74LV126 1. 1OE 5. 2A 9. 2. 1A 6. 2Y 10. 3OE 3. 1Y 7. GND 11. 4Y 4. 2OE 8. 3Y 12. 4A 1. 1A 5. 3A 9. 2. 1Y 6. 3Y 10. 5Y 3. 2A 7. GND 11. 5A 4. 2Y 8. 4Y 12. 6Y IC 3A 13. 4OE 14. VCC 74HC04 77 4A 13. 6A 14.
IC AD9883 78
1. GND 21. GND 41. GND 61. GND 2. GREEN<7> 22. VDD 42. VD 62. VD 3. GREEN<6> 23. VDD 43. BAIN 63. GND 4. GREEN<5> 24. GND 44. GND 64. VSOUT 5. GREEN<4> 25. GND 45. VD 65. SOGOUT 6. GREEN<3> 26. PVD 46. VD 66. HSOUT 7. GREEN<2> 27. PVD 47. GND 67. DATACK 8. GREEN<1> 28. GND 48. GAIN 68. GND 9. GREEN<0> 29. COAST 49. SOGIN 69. VDD 10. GND 30. HSYNC 50. GND 70. RED<7> 11. VDD 31. VSYNC 51. VD 71. RED<6> 12. BLUE<7> 32. GND 52. VD 72. RED<5> 13. BLUE<6> 33.
IC M13S128168A 80
81
IC WM8761 1. LRCIN 5. CAP 9. VOUTL 13. FORMAT 2. DIN 6. VOUTR 10. MUTE 14. MCLK 3. BCKIN 7. GND 11. NC 4. NC 8. VDD 12.
IC LX1722 83
1. LFAOUT 12. LIN- 23. RFBK- 34. LN- 2. CPWM 13. LAMPOUT 24. RFBK+ 35. LP- 3. RPWM 14. RIN+ 25. RISN 36. LP+ 4. LMUTE 15. RIN- 26. NC 37. LN+ 5. LEAOUT 16. RAMPOUT 27. PVDD 38. PGND 6. LEAIN 17. SLEEP 28. CP 39. PVDD 7. VREF 18. STATUS 29. PGND 40. CN 8. CLOCK 19. RMUTE 30. RN+ 41. VDD 9. GND 20. REAIN 31. RP+ 42. LISN 10. V25 21. REAOUT 32. RP- 43. LFBK+ 11. LIN+ 22. RFAOUT 33. RN- 44.
IC NJ1137 85
1. INa 9. AGC 17. AUX1 25. TONE-Hb 2. BBE1a 10. SS-FIL 18. AUX0 26. TONE INb 3. BBE2a 11. CVB 19. CTL 27. BBEOUTb 4. BBEOUTa 12. CVA 20. CTH 28. BBE2b 5. TONE Ina 13. SDA 21. VREF 29. BBE1b 6. TONE-Ha 14. SCL 22. SR-FIL 30. INb 7. TONE-La 15. GND 23. OUTb 8. OUTa 16. VCC 24.
IC PI5V330Q 1. IN 2. S1A 3. S2A 4. DA 5. S1B 6. S2B 7. DB 8. GND 9. DC 10. S2C 11. S1C 12. DD 13. S2D 14. S1D 15. EN 16. VCC 3. A+INPUT 4. V- 5. B+INPUT 6. B-INPUT 7. B OUTPUT 8. V+ IC NJM4558 1. A OUTPUT 2.
IC PIC16F72 1. MCLR/VPP1 8. VSS 15. RC4/SDI/SDA 22. RB1 2. RA0/AN0 9. OSC1/CLK1 16. RC5/SDO 23. RB2 3. RA1/AN1 10. OSC2/CLKO 17. RC6 24. RB3 4. RA2/AN2 11. RC0/T1OSO/T1CK1 18. RC7 25. RB4 5. RA3/AN3/VREF 12. RC1/T1OS1 19. VSS 26. RB5 6. RA4/T0CK1 13. RC2/CCP1 20. VDD 27. RB6/PGC 7. RA5/SS/AN4 14. RC3/SCK/SCL 21. RB0/INT 28.
IC TDA9875 89
1. P1 17. SDO1 33. i.c. 49. AUXOR 2. SIF2 18. SD12 34. i.c. 50. AUXOL 3. Vref1 19. SD11 35. VSSA2 51. VDDA 4. SIF1 20. TEST1 36. i.c. 52. MOR 5. ADDR2 21. MONOIN 37. i.c. 53. MOL 6. VSSD1 22. TEST2 38. Vref2 54. LOL 7. VDDD1 23. EXTIR 39. SCOR1 55. LOR 8. CRESET 24. EXTIL 40. SCOL1 56. VDD2 9. VSSD4 25. SCIR1 41. VSSD2 57. PCLK 10. XTAL1 26. SCIL1 42. VSSA4 58. NICAM 11. XTAL0 27. VSSD3 43. SCOR2 59. ADDR1 12. P2 28. SCIR2 44. SCOL2 60. SCL 13. SYSCLK 29.
QT1080-1 1. SS 9. SN1K 17. SNS5K 25. OUT_0 2. /RST 10. SNS2 18. SNS6 26. OUT_1 3. VDD 11. SNS2K 19. SNS6K 27. OUT_2 4. OSC 12. SNS3 20. SNS7 28. OUT_3 5. N.C. 13. SNS3K 21. SNS7K 29. OUT_4 6. SNS0 14. SNS4 22. VSS 30. OUT_5 7. SNS0K 15. SNS4K 23. SYNC/LP 31. OUT_6 8. SNS1 16. SNS5 24. DETECT 32.
www.fairchildsemi.com ML4800 Power Factor Correction and PWM Controller Combo Features General Description • Internally synchronized leading-edge PFC and trailingedge PWM in one IC • TriFault Detect™ for UL1950 compliance and enhanced safety • Slew rate enhanced transconductance error amplifier for ultra-fast PFC response • Low power: 200µA startup current, 5.
ML4800 PRODUCT SPECIFICATION Pin Configuration ML4800 16-Pin PDIP (P16) 16-Pin Narrow SOIC (S16N) IEAO 1 16 VEAO IAC 2 15 VFB ISENSE 3 14 VREF VRMS 4 13 VCC SS 5 12 PFC OUT VDC 6 11 PWM OUT RAMP 1 7 10 GND RAMP 2 8 9 DC ILIMIT TOP VIEW Pin Description 2 Pin Name Function 1 IEAO 2 IAC PFC AC line reference input to Gain Modulator 3 ISENSE Current sense input to the PFC Gain Modulator 4 VRMS PFC Gain Modulator RMS line voltage compensation input 5 SS Connection point for
www.fairchildsemi.com FS7M0880 Fairchild Power Switch(FPS) Features Description • • • • • • • • • • The Fairchild Power Switch(FPS) product family is specially designed for an off line SMPS with minimal external components. The Fairchild Power Switch(FPS) consists of a high voltage power SenseFET and the current mode PWM controller IC.
www.fairchildsemi.com FSD20x-SERIES FSD200, FSD201 Fairchild Power Switch(FPS) Description • • • • • • • • • • • The FSD20x is specially designed for an off-line SMPS with minimal external components. The FSD20x is a monolithic high voltage power switching regulator that combine the SenseFET(LDMOS) with voltage mode PWM control block.
FSD20X-SERIES Absolute Maximum Ratings (Ta=25°C unless otherwise specified) Parameter Symbol Value Unit Maximum Drain Voltage VD,MAX 700 V Maximum Vstr Pin Voltage Vstr,max 700 V Continuous Drain Current (TC=25°C) ID, FSD200 0.5 ADC Continuous Drain Current (TC=25°C) ID, FSD201 1.0 ADC VCC,MAX 20 V VFB −0.
8、Software version view and Upgrade instruction Software version view Power on the TV normally, hold the “SOURCE” key for about 10s, then “Software version, Publish Date and MCU version” info. will display on the screen. Software upgrade method Ⅰ、Power off the power, you can find the software upgrade port beside the VGA port in the TV back cover (see picture 1).
Picture 2. Upgrade cable Picture 3.
Picture4. Connect the upgrade cable with COM port of the PC Ⅲ、Switch on the power and power on the TV after connecting with upgrade cable, you can begin to upgrade when the TV in the normal working status. Power-on method: Switch on the power, power on TV (the power indicator is red when the TV is in standby mode); press “SOURCE” or any keys in the remote control to enter the working mode (the power indicator is green) Double click the upgrade tool icon picture 5.
Picture5.The interface of upgrade tool 1． Click “Choose” item in the upgrade tool and select the content which includes upgrade software (in picture 7 and 8, assumed the upgrade file name is “appcode”), then select the upgrade file. Picture 6.
Picture 7.Select upgrade software（b） 2． Click “Flash” item in upgrade tool to begin upgrade, Do not cut off the power or using “Cancel” during the upgrading. *Note：Remember to click “Flash” item firstly, then power on the power ( this solution limited), if it can upgrade, the following picture will display, the blue bar means the upgrading speed. Picture 8.
software upgrade is finished. Picture 9. Software upgrade completed Ⅳ、Finally, close the upgrade application program, cut off the power and disconnect the upgrade cable. The TV software upgrade is finishen.
Picutre10.
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39 40 41 42 1 2 3 4 5 38 6 37 7 42 6400 0126 0000 41 6340 0001 0003 36 8 35 9 38 1501 0000 0000 10 35 6343 0039 0000 34 FKV7.829.310HA 33 11 33 6400 0037 0000 32 6400 0012 0000 31 6402 0000 0000 32 12 31 13 34 40 6340 0000 0003 39 6403 0064 0000 37 6403 0011 5000 36 FKV7.829.988HD 30 6403 0064 0000 30 29 6400 0003 0000 28 6331 0015 0000 27 FKV7.827.775HC 26 25 2503 0100 0001 24 6343 0061 0000 23 FKV7.829.631SH 14 29 SPKS3# 22 6313 0000 0000 21 FKV7.829.
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10.1. Maintenance spare part list Mode:LC32T1E Total shipment(units) Part name Panel LCD panel 1 Board Power board 1 Scaler board 2 Tuner board 3 I/O board 4 Side I/O board 5 Key/IR receiver board 6 HDMI board 7 Accessories Remote Control 1 Power cord 2 User's manual 3 Battery 4 Certificate paper 5 Packaging 1 2 3 4 5 6 7 8 9 10 Stickers 1 2 Plastic 1 2 3 4 Cables Part NO. Discriptions1 Discriptions2 2603 0200 0027 FKV7.827.927HG FKV7.829.383SHL FKV7.827.988HD FKV7.829.736SH FKV7.829.310HC FKV7.828.
Power plug HF301 "L"-->Power switch,Power plug HF301 "N"->Power switch SCALER--POWER Connect cable 1301 0200 0080 L=270,red,ul, Connect cable Connect cable FFC cable 1301 0200 0112 13Pin 1301 0200 0115 16Pin 11 FFC cable 1301 0100 0017 12 FFC cable 1301 0100 0035 7pin,1.
10.2.Maintenance spare part list Mode:LC37T1E Total shipment(units) Part name Panel LCD panel 1 Board Power board 1 Scaler board 2 Tuner board 3 I/O board 4 Side I/O board 5 Key/IR receiver board 6 HDMI board 7 Accessories Remote Control 1 Power cord 2 User's manual 3 Battery 4 Certificate paper 5 Packaging 1 2 3 4 5 6 7 8 9 10 Stickers 1 2 Plastic 1 2 3 4 Cables Part NO. Discriptions1 Discriptions2 2603 0200 0023 FKV7.827.927HF FKV7.829.383SHA7 FKV7.827.988HD FKV7.829.736SH FKV7.829.310HC FKV7.828.
Connect cable 1301 0200 0080 Connect cable FFC cable 1301 0200 0093 12 FFC cable 1301 0100 0017 13 FFC cable 1301 0100 0035 7pin,1.
10.3. Maintenance spare part list Mode:LC42T1E Total shipment(units) Part name Panel LCD panel 1 Board Power board 1 Scaler board 2 Tuner board 3 I/O board 4 Side I/O board 5 Key/IR receiver board 6 HDMI board 7 Accessories Remote Control 1 Power cord 2 User's manual 3 Battery 4 Certificate paper 5 Packaging 1 2 3 4 5 6 7 8 9 10 Stickers 1 2 Plastic 1 2 3 4 Cables Part NO. Discriptions1 Discriptions2 2603 0200 0015 FKV7.827.927HF FKV7.829.383SHD1 FKV7.827.988HD FKV7.829.736SH FKV7.829.310HC FKV7.828.
8 Connect cable 1301 0200 0553 Connect cable 1301 0300 0007 Connect cable FFC cable 1301 0200 0093 12 FFC cable 1301 0100 0017 13 FFC cable 1301 0100 0035 14 Connect cable 1301 0200 0054 15 16 17 18 19 Connect cable 1301 0200 0055 Connect cable Earthing cable Earthing cable Connect cable 1301 0200 0211 20 Foil 1 2 Binder 1 2 Speakers Connect cable 1301 0200 0132 Foil shield for cable 6643 0000 1100 50x120mm Foil shield for cable 6643 0000 1200 80x160mm Binder 6520 0000 0500 B
10.4.Maintenance spare part list Mode:LC26T1E Total shipment(units) Part name Panel LCD panel 1 Board 1 Power board 2 Scaler board 3 Tuner board 4 I/O board 5 Side I/O board 6 Key/IR receiver board 7 HDMI board Accessories Remote Control 1 Power cord 2 3 4 5 Packaging 1 2 3 4 5 6 7 8 9 10 Stickers 1 2 Plastic 1 2 3 4 Cables 1 2 3 4 5 6 7 8 9 10 11 Part NO. Discriptions1 Discriptions2 2603 0200 0029 FKV7.827.226HB1 FKV7.829.547SH FKV7.827.988HD FKV7.829.010HC FKV7.829.310HC FKV7.828.479H FKV7.828.
Connect cable 1301 0200 0180 13 Connect cable 1301 0200 0540 L=650mm，8pin,UL2854 AWG28/6C KEY-->I/O 14 15 FFC cable 1301 0100 0035 7pin,1.0mm,L=60mm control of key board --->KEY board Connect cable 1301 0200 0048 5pin,1.
Screw! FKV6.178.588H 6900 0000 0010 **Back cover->Front cover4 17 Screw! FKV6.178.588H 6900 0000 0014 *Front cover->sound box net frame12,Sperker back cover(left)->Front cover6，Sperker back cover(right)->Front cover6，IR_PCB->Front cover2,LED_PCB->Front cover2,Oriented tube>Front cover4*2 Screw! FKV6.178.588H 6900 0000 0031 L=8 mm, Nominal diameter：3 mm ,Whorl length： 8 mm Screw! FKV6.150.
11.1.Trouble shooting Symptoms No power Possible cause ·Check if the power plug has been inserted properly into the socket. ·Check if the power switch has been turned on. ·Check if the power board could work normally. ·Check if the wires are OK and connected correctly. ·Check if the TV could receive KEY or IR signal normally. No picture,no sound ·Check if the Scaler board could work normally. ·Check if the LCD Panel could work normally.
11.2. Power Board Power BOARD is NG Check whether the fuse is burn out Check whether the connection of DB1 and DB2 is ok, whether DS pin of JM1, C33 and C27 is in short circuit state.
