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SERVICE MANUAL

DV722S

Содержание DV722S

Страница 1: ...SERVICE MANUAL DV722S...

Страница 2: ...VIEW AND PART LIST 4 5 2 BRACKET EXPLOSED VIEW AND PART LIST 6 6 ELECTRICAL CONFIRMATION 8 6 1 VIDEO OUTPUT LUMINANCE SIGNAL CONFIRMATION 8 6 2 VIDEO OUTPUT CHROMINANCE SIGNAL CONFIRMATION 9 7 MPEG BO...

Страница 3: ...removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as alminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only...

Страница 4: ...3 7 9...

Страница 5: ...installation the both ends of the laser diode are short circuited After replacing the parts with new ones remove the short circuit according to the correct procedure See this Technical Guide 2 Do not...

Страница 6: ...5 1 Optical pickup Unit Explosed View and Part List Pic 1...

Страница 7: ...MIDDLE A 1 7 1EA2511A29400 GEAR MIDDLE B 1 8 1EA2744A03000 SHAFT SLIDE 1 9 1EA2744A03100 SHAFT SLIDE SUB 1 10 1EA2812A15300 SPRING COMP TYOUSEI 3 11 1EA2812A15400 SPRING COMP RACK 1 21 1EA0B10B20100 A...

Страница 8: ...t wheel 17 Pick up 5 gearwheel 18 switch 6 iron chip 19 Five pin flat plug 7 Immobility mechanism equipment 20 screw 8 Magnet 21 PCB 9 Platen 22 motor 10 Bridge bracket 23 Motor wheel 11 screw 24 scre...

Страница 9: ...h a soldering iron after a circuit is connected Keep the power source of the pick up protected from internal and external sources of electrical noise Refrain from operation and storage in atmospheres...

Страница 10: ...onnect the oscilloscope to the video output terminal and terminate at 75 ohms 2 Confirm that luminance signal Y S level is 1000mVp p 30mV Measurement point Video output terminal Color bar 75 PLAY Titl...

Страница 11: ...tput terminal and terminate at 75 ohme 2 Confirm that the chrominance signal C level is 621 mVp p 30mV Measurement point Video output terminal Color bar 75 PLAY Title 46 DVDT S15 PLAY Title 12 DVDT S0...

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Страница 13: ...r Sectors can be locked in system or via programming equipment Temporary Sector Unprotect feature allows code changes in previously locked sectors Unlock Bypass Program Command Reduces overall program...

Страница 14: ...ss time ns tACC 70 90 120 Max CE access time ns tCE 70 90 120 Max OE access time ns tOE 30 35 50 Input Output Buffers X Decoder Y Decoder Chip Enable Output Enable Logic Erase Voltage Generator PGM Vo...

Страница 15: ...12 DQ4 VCC DQ11 DQ3 DQ10 48 33 47 46 45 44 43 42 41 40 39 38 37 36 35 34 25 32 31 30 29 28 27 26 A1 A15 A18 A14 A13 A12 A11 A10 A9 A8 A19 NC WE RESET NC NC RY BY A17 A7 A6 A5 A4 A3 A2 1 16 2 3 4 5 6 7...

Страница 16: ...22 RESET A18 A17 A7 A6 A5 A4 A3 A2 A1 A0 CE VSS OE DQ0 DQ8 DQ1 DQ9 DQ2 DQ10 DQ3 DQ11 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 WE A19 A8 A9 A10 A11 A12 A13 A14 A15 A16 BYTE VSS...

Страница 17: ...16 bit mode CE Chip enable OE Output enable WE Write enable RESET Hardware reset pin RY BY Ready Busy output N A SO 044 VCC 3 0 volt only single power supply see Product Selector Guide for speed opti...

Страница 18: ...f consecutive read or write cycles initiated by a single control command Burst length of 1 2 4 8 or Full page and the burst count sequence sequential or interleave A burst of read or write cycles in p...

Страница 19: ...ite Enable RAS CAS and WE define the operation Refer function truth table for details LDQM UDQM Data Input Output Mask Controls output buffers in read mode and masks input data in write mode DQ0 DQ15...

Страница 20: ...olumn Pre Decoders Column Add Counter Row active Column Active Burst Counter Data Out Control CAS Latency Internal Row counter DQ0 DQ1 DQ14 DQ15 refresh Self refresh logic timer Pipe Line Control I O...

Страница 21: ...grates the MediaTek 2nd generation front end analog RF amplifier and the Servo MPEG AV decoder The progressive scan of the MT1389 utilized a proprietary advanced motion adaptive de interlace algorithm...

Страница 22: ...output or digital output Embedded Micro controller Built in 8032 micro controller Built in internal 373 and 8 bit programmable lower address port 1024 bytes on chip RAM Up to 4M bytes FLASH programmin...

Страница 23: ...e echo Microphone tone control Vocal mute vocal assistant Key shift up to 8 keys Chorus Flanger Harmony Reverb Channel equalizer 3D surround processing include virtual surround and speaker separation...

Страница 24: ...tal control inputs A B and C and an inhibit input Each control input selects one of a pair of channels which are connected in a single pole double throw configuration When these devices are used as de...

Страница 25: ...IN 0 3 A B 2 Y CHANNELS IN OUT Y CHANNELS IN OUT X CHANNELS IN OUT X CHANNELS IN OUT 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 by bx cy OUT IN CX OR CY IN OUT CX INH VSS VEE VDD OUT IN ax OR ay ay ax A B...

Страница 26: ...10 A B INH VSS VEE VDD TG TG TG TG TG TG TG TG 4 2 5 1 LOGIC LEVEL CONVERSION 11 10 9 6 A B C INH 12 3 5 1 2 13 TG TG TG TG TG TG 4 COMMON OUT IN ax ay bx by cx cy 8 7 VSS VEE 16 VDD IN OUT 15 14 BINA...

Страница 27: ...0 0 1 1 0 0 1 0 2 0 0 1 1 3 0 1 0 0 4 0 1 0 1 5 0 1 1 0 6 0 1 1 1 7 1 X X X None CD4052B INHIBIT B A 0 0 0 0x 0y 0 0 1 1x 1y 0 1 0 2x 2y 0 1 1 3x 3y 1 X X None CD4053B INHIBIT A OR B OR C 0 0 ax or b...

Страница 28: ...EG8 KS8 18 SEG9 KS9 19 SEG10 KS10 20 SEG11 21 SEG12 GR7 22 VDD 25 GND 26 GR5 24 GR4 27 GR3 28 GND 29 GR2 30 GR1 31 GND 32 U401 PT6961 LEDAT LEDCK LEDST KEY1 KEY2 KEY3 S1 S2 S3 S4 S5 S6 S7 S8 G1 G2 G3...

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Страница 30: ...C507 101 TC503 470uF 16V R511 220R 1W FB 4 GND 1 D 2 VCC 3 U501 5L0380R R507 1K R504 1M IN 1 GND 2 OUT 3 U504 LM7805 TC508 100uF 16V SA 5V D510 HER303 ZD501 5 1V D506 HER105 D509 SR303 D511 HER105 D5...

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Страница 32: ...D C609 104 TC621 100uF 16V C613 104 R631 3 9K R627 3 9K TC618 47uF 16V TC619 100uF 16V C614 104 R630 3 9K R632 3 9K TC617 47uF 16V TL 5V R636 4 7R R635 4 7R AGND C612 104 OUT1 1 IN1 2 IN1 3 GND 4 VDD...

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Страница 34: ...1 2 3 4 5 6 JK702 RCA 407 BLACK TC702 1000uF 10V TC703 220uF 16V TC704 220uF 16V L710 FBSMT SPDIF R701 220R C710 104 L713 FCM L714 FCM C707 105 VGND R716 0R AGND VGND R703 68R VIN 1 VCC 2 GND 3 JK705...

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Страница 36: ...TRSO FOSO V1P4 V1P4 ADIN L202 33R 89V33 PWR A16 A15 A14 A13 A12 A11 A10 A9 A20 PCE A1 PRD AD0 AD1 AD2 AD3 AD4 AD5 AD6 A21 AD7 A17 A0 V18 VSCK VSDA VSTB SCL SDA RXD TXD URST IR DQM0 DQS0 DQ7 DQ6 DQ5 DQ...

Страница 37: ...A4 29 A5 30 A6 31 A7 32 A8 33 A9 34 A10 AP 22 A11 35 BA0 A13 20 BA1 A12 21 CLK 38 CKE 37 CS 19 RAS 18 CAS 17 WE 16 DQML 15 DQMH 39 NC 36 NC 40 VSS 54 VSS 41 VSS 28 DQ0 2 DQ1 4 DQ2 5 DQ3 7 DQ4 8 DQ5 10...

Страница 38: ...138 104 C2139 104 C2140 104 9V AGND C2176 104 C2177 104 C2178 104 9V AGND SDATA2 SDATA1 SDATA0 SLRCK SACLK SBCLK SCL SDA RESET RS LS LFE C R2132 20K C2116 102 OKA AGND R2156 20K R2136 6 8K R2148 6 8K...

Страница 39: ...6 7 U215B 4580 R2181 20K R2190 4 7K R2189 4 7K R2188 20K R2184 470R R2191 470R R2186 100K R2193 100K R2183 4 7K R2182 4 7K TC323 10UF 16V TC322 10UF 16V C2159 101 C2145 CAP C2146 CAP C2147 CAP C2148 C...

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Страница 41: ...223 10 5mm PCS 1 C506 0210066 TERYLENE CAPACITOR 275V 104 20 15mm PCS 1 BC502 0210070 TERYLENE CAPACITOR 275V 104 10 15mm PCS 1 BC502 0210166 ANTI DISTURBANCE CAPACITOR MKP41 275VAC 103 20 10 PCS 1 B...

Страница 42: ...TOR 1 16W 2 2 5 0603 PCS 1 R706 0310066 SMD CAPACITOR 50V 102 10 0603 PCS 13 C701 C706 C716 C723 C728 0310222 SMD CAPACITOR 25V 104 20 X7R 0603 PCS 1 C710 0310207 SMD CAPACITOR 50V 104 20 X7R 0603 PCS...

Страница 43: ...7U 20 5 7 2 PCS 3 TC611 TC615 TC616 0260127 CD CD11 16V4 7U 20 5 11 2 PCS 2 TC602 TC604 0260021 CD CD11 16V22U 20 5 11 2 PCS 1 TC606 0260037 CD CD11 25V22U 20 5 11 2 PCS 1 TC606 0390095 SMD MAGNETIC B...

Страница 44: ...8 0090024 SMD RESISTOR 1 16W 15K 5 0603 PCS 2 R209 R223 0090025 SMD RESISTOR 1 16W 20K 5 0603 PCS 4 R211 R312 R315 R316 0090255 SMD RESISTOR 1 16W24K 5 0603 PCS 8 R2129 R2133 R2137 R2141 R 2145 R2149...

Страница 45: ...5 0310056 SMD CAPACITOR 16V 473 10 0603 PCS 2 C219 C220 0310362 SMD CAPACITOR 16V474 80 20 0603 PCS 1 C218 0390044 SMD INDUCTOR 10UH 10 2012 PCS 2 L303 L306 0390096 SMD INDUCTOR 1 8UH 10 1608 PCS 6 L2...

Страница 46: ...PCS 1 U201 0881378 IC BA5954FP HSOP PCS 1 U302 0881886 IC 36C7T 3MCD4052BM SOP PCS 1 U304 0960020 CRYSTAL OSCILLATOR 27 00MHz 49 S PCS 1 X201 1940072 CABLE SOCKET 6 5P 1 25mm STRAIGHT DUAL LINE PLUG P...

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Страница 70: ...e range applications to audio equipment especially multi functional compact audio equipment such as mini and micro component stereo equipment MD radio cassette recorders DVDs and audio receivers Items...

Страница 71: ...al name GND FM DET VSM Rch OUT Vcc Lch OUT GND q w e r t y u DO i CL o DI 0 CE 1 FM ANT AM ANT FM AM PLL Combination IC L Vc R DO CL DI C 51 5max 18 3 TYPE IEC F FM ANT 20 60max 12 5 5 3 AM ANT GND 9...

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