Velas VDM-MB434TV Service Manual Download Page 11 | Manualshive

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SCHEMATIC DIAGRAM

MAIN BOARD 2/5 Section

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Summary of Contents for VDM-MB434TV

Page 1: ...on Exploded Views panel Exploded View Parts List panel Exploded Views Cabinet Exploded View Parts List Cabinet Exploded Views Deck Exploded Views Parts List Deck Schematic Diagram Electrical Parts List Trouble shooting 1 2 3 4 5 6 8 8 9 21 32 TOUCH SCREEN CAR DVD VCD CD MP3 MPEG4 TV PLAYER IR TA AF PTY MU APS DIS P I CH 1 6 PAIR BND E O N MOD SEL AUX IN RESET MIC REL VOL VOL Service Manual ...

Page 2: ...ON FREQUENCY COVERAGE FM1 FM2 87 5 to 108 MHz FM3 65 to 74MHz IF 10 7 MHz SENSITIVITY S N 30 dB 15 dBu FREQUENCY COVERAGE 522 to1620 KHz IF 450 KHz SENSITIVITY S N 20 dB 40 dBu SUPPLY VOLTAGE 12V DC 11V 15V CURRENT CONSUMPTION Less than10 A SIGNAL SYSTEM Compositive video 1 0Vp p 75 DISCS PLAYED 1 DVD VIDEO Disc 5 12 cm single sided single layer 5 12 cm single sided double layer 2 Compact Disc CD ...

Page 3: ... parking brake B must be connected in order for DVD pictures to be played back to the monitor If the cable has not been correctly connected the message PARKING BRAKE appears on the monitor FRONT RCA WHITE L FRONT RCA RED R VIDEO OUT 1 YELLOW FRONT RCA OUTPUT CABLE FOR RCA LINE OUT VERSION ONLY GREY GREY BLACK FRONT Rch SPK VIOLET VIOLET BLACK WHITE WHITE BLACK GREEN GREEN BLACK REAR Lch SPK AUTO A...

Page 4: ...EXPLODED VIEW PANEL 3 ...

Page 5: ...EXPLODED VIEW PARTS LIST PANEL 4 ...

Page 6: ...EXPLODED VIEW MAIN SECTION 5 ...

Page 7: ...EXPLODED VIEW PARTS LIST MAIN SECTION 6 ...

Page 8: ...EXPLODED VIEW PARTS LIST CONTNUED MAIN SECTION 7 ...

Page 9: ...Їੋᅀ ᅧՎӰܾ ߈ჱӰܾ 3ຬ ڛݷ ঢ় ڛ Իᆥӳᅀ ࣈ ݍ ᅧ૭ Ѣঢ় ڥ Ӱܾ ЈЇੋᅀ ଣӛ Їੋᅀ ଣӛঢ় ߈ჱ ᅀ ᅧՎևঢ় Ӱܾ ᅧՎᅀ Վ Ӓ ଣӛঢ়ᅀ Ճ77 ᅧՎᄆޯ ڛݷ Ѣঢ়ᄆޯ ᅧՎѢঢ় ڛݷ Ѣঢ় ᅧՎЩᅀ ഔ ئ ӳଫ ᅧՎඊ ڛݷ Ѣঢ় ԧଫ Ճ0 Ճ67760 3ຬ Ճ 77 ഔ څئ Շᆶ ط ئ ӽഔ ئ ܡ ଫ 5Đ ڛݷ Ѣঢ় ӽ ڛݷ පᄘ ئ ڛ ᅀ څ Շᆶ පᄘӰܾ ڛ ᅀ ܡ ଫӰܾ ঢ়ᅧՎᅀ ܡ ଫ Đ ঢ়5 SFE ࣈ5 ڑ Ѣ ڥ ౨ آ ՎѢঢ় EXPLODED VIEW PARTS LIST DECK 20 8 ...

Page 10: ...SCHEMATIC DIAGRAM MAIN BOARD 1 5 Section 9 ...

Page 11: ...SCHEMATIC DIAGRAM MAIN BOARD 2 5 Section 10 ...

Page 12: ...SCHEMATIC DIAGRAM MAIN BOARD 3 5 Section 11 ...

Page 13: ...SCHEMATIC DIAGRAM MAIN BOARD 4 5 Section 12 ...

Page 14: ...SCHEMATIC DIAGRAM MAIN BOARD 5 5 Section 13 ...

Page 15: ...SCHEMATIC DIAGRAM KEY BOARD 1 2 Section 14 ...

Page 16: ...SCHEMATIC DIAGRAM KEY BOARD 2 2 Section 15 ...

Page 17: ...DEX POWER RESET 4 VIDEO OUT SUPPLY 3 MEMORY SDRAM FLASH EEPROM V18 12V 12V AVCC PICKUP HEADER RF 5V 5 AUDIO DAC PCM1742 AND AUDIO OUT 5VV Video 5V 6 HDMI MT1392 HDMI Card Reader Integrated Design V2 MT1392 DVDD18 92_DV33 MT1392 D36 1N4001 D36 1N4001 1 2 CE54 220uF 16V CE54 220uF 16V C162 0 1uF C162 0 1uF D35 1N4001 D35 1N4001 2 D37 1N4148 D37 1N4148 1 2 L50 601LB L50 601LB C9 0 1uF C9 0 1uF CB12 0...

Page 18: ...MT1389DE H Pin Assignment v1 5 MT1389HD U1 MT1389DE H DVDA 2 CRT P LP 250 DVDB 3 DVDC 4 DVDD 5 AGND 1 OS P 252 OS N 253 DVDRFIP 6 DVDRFIN 7 MA 8 MB 9 MC 10 MD 11 SA 12 SB 13 SC 14 SD 15 CDFON 16 CDFOP 17 TNI 18 TPI 19 MDI1 20 MDI2 21 LDO2 22 LDO1 23 A V DD3 256 V2REFO 28 SGND 27 VREFO 30 V20 29 TEO 32 FEO 31 VPLLVSS 43 RFLVL RFON 26 CSO RFOP 25 TEZISLV 33 OP_OUT 34 OP_INN 35 OP_INP 36 FOO 42 TRO 4...

Page 19: ...58 33 R331 10k R331 10k R62 33 R62 33 R69 10K R69 10K C199 20pF C199 20pF U6 FLASH 16M U6 FLASH 16M A0 25 A1 24 A2 23 A3 22 A4 21 A5 20 A6 19 A7 18 A8 8 A20 10 OE 28 BYTE 47 A18 16 D0 29 D1 31 D2 33 D3 35 A9 7 CE 26 D4 38 D5 40 D6 42 D7 44 D8 30 D9 32 WP ACC 14 D11 36 D12 39 D13 41 D14 43 D15 A 1 45 VCC 37 GND1 27 WE 11 A19 9 D10 34 GND2 46 A10 6 A12 4 A11 5 A13 3 A14 2 A15 1 A16 48 A17 17 RESET 1...

Page 20: ...RR17 OPEN R277 0 R277 0 R50 0 R50 0 CE58 10uF CE58 10uF R284 180k R284 180k C184 47pF C184 47pF R265 0 R265 0 R53 15K R53 15K R270 180k R270 180k P3 COAXIAL P3 COAXIAL 1 2 R325 100k R325 100k R324 4 7k R324 4 7k RR2 10K RR2 10K R276 75 R276 75 RR1 10K RR1 10K S1 Disck In S1 Disck In RR10 OPEN RR10 OPEN C183 47pF C183 47pF RR16 1K RR16 1K RR11 1K RR11 1K C194 0 1uF C194 0 1uF L76 FB L76 FB RR3 33R ...

Page 21: ...BA4558 R12 12K R14 12K R15 12K R17 12K C13 2u2 C15 2u2 C16 2u2 C18 2u2 R5 22K R8 22K 5V C7 10u 25V C9 10u 25V C6 150P C10 150P R9 22K R10 22K R11 22K R18 22K C20 10u R13 1K R16 2K2 L_OUT R_OUT BL_RXD BL_TXD MOSI CSB MISO CLK C12 NC C5 NC SW1 SW2 SW3 R4 10K R3 10K R2 10K R1 10K SW4 C17 47n C19 47n R22 200 C24 1n C23 15P C25 100n 3P3V MIC 1 2 3 4 5 6 7 8 9 J1 9V R_OUT L_OUT MIC BL_RXD BL_TXD 1 2 J3 ...

Page 22: ... SMT 1206 102 50051 03S 3 Z2 D25 Z4 D9 ZENER DIODE 5 6V 1206 0 5W 5 SMT 102 50056 12S 4 D174 ZENER DIODE 10V 5 SMT LL 34 1206 102 50100 02S 1 IC6 C AP1507 TO252 5L SMT 103 01507 00S 1 U4 IC CHIP NJM2233BM 103 02233 00S 1 UU3 IC CHIP NJM2293M 103 02293 00S 1 U27 IC NJM2575F MTP6 103 02575 01S 1 U26 24 25 IC F4558 SOP FORCING 103 04558 26S 3 U20 IC BA6289F SOP8 103 06289 00S 1 IC3 IC CHIP SC7313 103...

Page 23: ...AP 0603 683 25V 10 SMT 105 03683 63S 1 C217 CAP 82PF 5 NPO 0603 SMT 105 03820 63S 1 C103 25 142 228 E CAP 10UF 10V φ4x5mm 106 10106 02S 4 C46 E CAP INSERT 100UF 10V φ6 5MM 106 10107 02S 1 C10 16 E CAP INSERT 1000UF 10V φ8X14mm 106 10108 01S 2 C17 104 54 57 15 49 124 31 85 86 130 206 101 48 E CAP INSERT 47uF 10V φ6 5MM 106 10476 02S 14 C20 E CAP INSERT 10uF 16V φ4 5MM 106 16106 02S 1 C152 80 39 CC1...

Page 24: ... 1 R115 125 255 RES 0603 1 5K 5 SMT 107 10152 63S 3 R98 93 97 99 RES 15KΩ 5 0603 SMT 107 10153 63S 4 R140 RES 1 8KΩ 5 0603 SMT 107 10182 63S 1 R127 RES 0603 20K 1 SMT 107 10203 63AS 1 R112 RES 22Ω 5 0603 SMT 107 10220 63S 1 R85 82 295 RES 22Ω 5 0805 SMT 107 10220 85S 3 R199 128 105 7 RR20 RES 0603 220R 5 SMT 107 10221 63S 5 R124 RES 0603 2 2KΩ 1 SMT 107 10222 63AS 1 R123 114 RR81 RES 0603 2 2KΩ 5 ...

Page 25: ...ON4 5P 2 0MM 225 23450 06 225 10200 50S 1 CON6 3P 2 5MM 232 20255 10 225 10250 03S 1 CON1 CONNECTOR 1 0 25P DVD 233 225 11103 25S 1 CON12 DVD BL 30000 CHIP BOTTOM 26PIN P 1 0MM 225 30000 26S 1 J3 2PIN 2 0mm 225 53015 02S 1 DVD3000 MB V 172 97X150 25 1 6MM D S 312 30000 010S 1 L1 RING COIL 220uH H TYPE 315 00221 00S 1 TUI FM AM TUNER XF 20FMV 10 329 08011 01S 1 RESET DIODE IN4148 102 04148 00S 3 D1...

Page 26: ... 0 1uF 50V 0603 10 SMT 105 03104 63S 1 R163 RES 22Ω 5 0603 SMT 107 10220 63S 1 R155 RES 0603 220R 5 SMT 107 10221 63S 1 FB10 INDUCTOR 10uH SMD 0805 109 70100 85S 1 DVD3000TV TUNER BOAR 58 9X31 65X1 6MM D S 312 30000 787S 1 W TV USB MP4 BT 379 F3000 04 IC 24C01 EEPROM FLAT PACK 103 02401 00S 1 SINGLE SHIELD WIRE 66MM BROWN 231 86066 01S 1 TV TUNER XF 6A PAL NTSC H TYPE 329 00204 01S 1 TV JACK SET 5...

Page 27: ...3S 1 C17 19 CAP 473P 10 7R 0603 SMT 105 03473 63S 2 C7 9 10u 25V Y5V 10 1206 105 25106 12S 2 C3 20 35 26 10u 25V Y5V 10 0805 105 25106 85S 4 R6 7 13 RES 0603 1KΩ 5 SMT 107 10102 63S 3 R1 2 3 4 RES 0603 10K 5 SMT 107 10103 63S 4 R17 15 14 12 RES 12KΩ 5 0603 SMT 107 10123 63S 4 R21 RES 0603 150KΩ 1 SMT 107 10154 63AS 1 R19 RES 180K 5 0603 SMT 107 10184 63S 1 R23 22 RES 200Ω 5 0603 SMT 107 10201 63S ...

Page 28: ...01 00S 4 KEY BOARD 313 43001 601S 379 F2231 04 Q1 TR KTC3875 CHANG DIAN SMT 101 03875 07S 1 LED14 5 3 4 2 6 1 12 13 15 11 7 16 9 8 19 18 10 17 2012H183BC 0805 BLUE 102 01701 06S 19 D105 104 DIODE IN 4001 SOD 106 M1 102 04001 01S 2 D102 1206 1N4148 5 SMT 1206 102 04148 12S 1 D1 103 IN5819 SOD 106 SS16 102 05819 02S 2 D101 BAV99 ZENER DIODE SMD1206 A7 102 50099 12S 1 IC104 IC CHIP T101 T101A 103 001...

Page 29: ... 32 RES 0603 2 2KΩ 5 SMT 107 10222 63S 2 R3 RES 0603 22K 5 SMT 107 10223 63S 1 R18 33 RES 0603 2 7K 5 SMT 107 10272 63S 2 R139 111 110 109 24 4 RES 0603 33Ω 5 107 10330 63S 6 R134 118 117 115 136 137 135 RES 33Ω 0603X4 SMT 5 107 10330 P4S 7 R20 34 RES 0603 3 9K 5 SMT 107 10392 63S 2 R27 2 RES 0603 470R 5 SMT 107 10471 63S 2 R12 7 11 10 1 13 5 69 RES 0603 4 7K 5 SMT 107 10472 63S 8 R22 RES 0603 47K...

Page 30: ...5 64 56 48 53 31 49 59 6 50 61 67 54 C B13 8 11 10 17 12 1 6 2 7 CAP 0 1uF 50V 0603 10 SMT 105 03104 63S 66 C37 36 35 34 33 CAP 0603 105Z 50V 10 SMT 105 03105 63S 5 C38 CAP 120PF 5 NPO 0603 SMT 105 03121 63S 1 C170 169 CAP 150PF 5 NPO 0603 SMT 105 03151 63S 2 C68 CAP 0 015μF 10 7R 0603 SMT 105 03153 63S 1 C7 CAP 20P 5 NPO 0603 SMT 105 03200 63S 1 C198 CAP 0603 22P 25V 20 SMT 105 03220 63S 1 C4 15 ...

Page 31: ...2 R226 224 45 221 RES 0603 20K 5 SMT 107 10203 63S 4 R299 RES 0603 220R 5 SMT 107 10221 63S 1 R62 60 59 61 RES 0603 33Ω 5 107 10330 63S 4 RN2 3 RES 33Ω 0603X4 SMT 5 107 10330 P4S 2 R25 23 71 27 RES 0603 4 7K 5 SMT 107 10472 63S 4 R270 284 RES 0603 47K 5 SMT 107 10473 63S 2 R22 RES 0603 560Ω 5 SMT 107 10561 63S 1 R14 11 RES 680KΩ 5 0603 SMT 107 10684 63S 2 R276 244 RES 0603 75Ω 5 SMT 107 10750 63S ...

Page 32: ...16V 1210 10 SMT 105 03226 11S 1 C40 CAP 0603 330P 25V 10 SMT 105 03331 63S 1 C17 19 CAP 473P 10 7R 0603 SMT 105 03473 63S 2 C7 9 10u 25V Y5V 10 1206 105 25106 12S 2 C3 20 35 26 10u 25V Y5V 10 0805 105 25106 85S 4 R6 7 13 RES 0603 1KΩ 5 SMT 107 10102 63S 3 R1 2 3 4 RES 0603 10K 5 SMT 107 10103 63S 4 R17 15 14 12 RES 12KΩ 5 0603 SMT 107 10123 63S 4 R21 RES 0603 150KΩ 1 SMT 107 10154 63AS 1 R19 RES 1...

Page 33: ...noise The antenna cable is not connected Insert the antenna cable firmly The signals are too weak Select a station manually SYMPTOM CAUSE SOLUTION Television video imageappears black white The color system is set incorrectly Please switch to correct color system from menu No television video image appears The unit is not connected to the parking brake detection switch Make proper connection accord...

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