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SERVICE MANUAL

ECHO

VOL

DV324S

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Содержание DV324S

Страница 1: ...SERVICE MANUAL ECHO VOL DV324S...

Страница 2: ...1 OPTICAL PICKUP UNIT EXPLOSED 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...

Страница 3: ...s place the assembly on a conductive surface such as alminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only a grounded tip soldering iron to solder or unsolder ES...

Страница 4: ...n 9 MIC 1 jack LED display window 14 POWER switch 6 STOP button MIC VOLUME knob 11 8 FWD button IR SENSOR 13 3 OPEN CLOSE button 2 Disc tray 7 REV button 12 ECHO adjustment knob 4 3 11 12 13 14 10 9 2...

Страница 5: ...nds 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 use a tester to check t...

Страница 6: ...5 1 Optical pickup Unit Explosed View and Part List Pic 1 5 Assembling and disassembling the mechanism unit 4...

Страница 7: ...IDDLE 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 AS...

Страница 8: ...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 screw...

Страница 9: ...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 c...

Страница 10: ...illoscope 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 Title 46 DVDT S15...

Страница 11: ...te 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 S01 DVDT S15 or DVDT S01 Mo...

Страница 12: ...7 MPEG BOARD CHECK WAVEFORM 7 1 27MHz WAVEFORM DIAGRAM 7 2 IC5L0380R PIN 2 WAVEFORM DIAGRAM 10...

Страница 13: ...Algorithm Preprograms and Erases Any Combination of Sectors or the Entire Chip n n n n n Automatic Program Algorithm Writes and Verifies Data at Specified Addresses n n n n n Compliant With Common Fl...

Страница 14: ...veri fies proper cell margin Hardware Sector Protec tion optionally disables both program and erase operations in any combination of the sectors of the memory array while Temporary Sector Un protect...

Страница 15: ...t i r w e d o m y b d n a t S e h t n i d e c a l p s i e c i v e d E O t u p n I w o L e v i t c a e l b a n E t u p t u O r o f d e t a g e n d n a s n o i t a r e p o d a e r r o f d e t r e s s A...

Страница 16: ...9 20 DQ3 DQ11 21 22 RY BY A18 1 2 A17 A7 3 4 A10 A11 40 39 A12 A13 38 37 A14 A15 36 35 A16 BYTE 34 33 VSS DQ15 A 1 32 31 DQ7 DQ14 30 29 DQ6 DQ13 28 27 DQ5 DQ12 26 25 DQ4 VCC 24 23 RESET WE 44 43 A8 A9...

Страница 17: ...DQM and UDQM Package 400mil 50 pin TSOP 2 DESCRIPTION ICSI s 16Mb Synchronous DRAM IC42S16101 is organized as a 524 288 word x 16 bit x 2 bank for improved performance The synchronous DRAMs achieve hi...

Страница 18: ...pt for CKE all inputs to this device are acquired in synchronization with the rising edge of this pin 18 CS Input Pin The CS input determines whether command input is enabled within the device Command...

Страница 19: ...RESH COUNTER SELF REFRESH CONTROLLER ROW ADDRESS LATCH MULTIPLEXER ROW ADDRESS BUFFER ROW ADDRESS BUFFER COLUMN ADDRESS LATCH BURST COUNTER COLUMN ADDRESS BUFFER ROW DECODER ROW DECODER MEMORY CELL AR...

Страница 20: ...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 to ach...

Страница 21: ...utput 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 programming...

Страница 22: ...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 T...

Страница 23: ...GR1 31 GND 32 U401 PT6961 LEDAT LEDCK LEDST KEY1 KEY2 KEY3 S1 S2 S3 S4 S5 S6 S7 S8 G1 G2 G3 G4 G5 G6 G7 VCC VCC VCC VCC2 TC402 100uF 16V S1 S2 S3 S4 S5 S6 S7 S8 G1 G2 G3 G4 G5 G7 G6 2 5 7 10 12 14 15...

Страница 24: ...FRONT SCHEMATIC DIAGRAM 22...

Страница 25: ...506 1000uF 10V TC505 1000uF 10V TC509 1000uF 10V TC510 1000uF 10V 2 3 4 1 5 CN501 XS05 D508 HER105 C507 101 TC503 470uF 16V R511 220R 1W FB 4 GND 1 D 2 VCC 3 U501 5L0380R R507 1K R504 1M R501 680K 2W...

Страница 26: ...POWER BOARD SCHEMATIC DIAGRAM 24...

Страница 27: ...8050 V702 8050 R708 33R R709 330R R710 2 2K 10V A 10V AGND PDAT0 V703 8050 R711 1K R712 2 2K A 10V PDAT2 C710 104 AGND VCC AGND R707 A 10V AGND AGND VCC PDAT0 10V VGND VGND VGND L712 FBSMT L711 FBSMT...

Страница 28: ...OUTPUT BOARD SCHEMATIC DIAGRAM 26...

Страница 29: ...1 2 3 VRB02 10K 1 2 3 VRB01 10K MIC MIX OUT2 OUT1 2 3 4 1 5 XSB01 XS05 OUT1 OUT2 MIX MIC GND h B963A 1 OK SUBSIDIARY BOARD 27...

Страница 30: ...OK SUBSIDIARY BOARD 28...

Страница 31: ...SUBSIDIARY BOARD 1 29...

Страница 32: ...SUBSIDIARY BOARD 2 30...

Страница 33: ...3 GND 4 VDD 8 OUT2 7 IN2 6 IN2 5 U603 TDA1308 R629 3 3K R630 3 3K AGND R636 10K R635 10K C616 101 C617 101 H_R C622 104 NC C621 104 NC 2 3 1 JKA01 PHONEJACK R625 1K R627 56K R626 1K R628 56K AGND AGND...

Страница 34: ...32...

Страница 35: ...MSO FMSO TRSO FOSO V1P4 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 DQ4...

Страница 36: ...5 VCCQ 13 VCCQ 7 VCCQ 38 VCCQ 44 VSSQ 4 VSSQ 10 VSSQ 41 VSSQ 47 VSS 26 VSS 50 NC 37 NC 33 DQML 14 WE 15 DQMH 36 U203 SDRAM 512 16 2 DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9 DMA10 BA0 SDCLK SD...

Страница 37: ...OKA AGND R2156 24K DNS R2136 6 8K R2148 6 8K R2152 6 8K R2153 6 8K R2154 6 8K R2155 6 8K C2122 122 C2129 122 C2130 122 C2133 122 C2135 122 C2136 122 VOICE DET VLS 1 SDIN1 2 SDIN2 3 SDIN3 4 SCLK 5 LRC...

Страница 38: ...MIAN SCHEMATIC DIAGRAM 36...

Страница 39: ...AL OXIDE FILM RESISTOR 2W120K 5 SHAPE DFLAT 15 7 PCS 1 R502 0070001 HIGH VOLTAGE RESISTOR 1 2W680K 5 PCS 1 R501 0200105 PORCELAIN CAPACITOR 50V 100P 10 5mm PCS 5 C505 C507 C509 C511 C514 0200138 PORCE...

Страница 40: ...0K 5 0603 PCS 2 R635 R636 0090030 SMD RESISTOR 1 16W 56K 5 0603 PCS 2 R627 R628 0310047 SMD CAPACITOR 50V 101 5 NPO 0603 PCS 2 C616 C617 0310207 SMD CAPACITOR 50V 104 20 X7R 0603 PCS 3 C604 C605 C623...

Страница 41: ...708 PCS 2 L601 L602 0880124 IC NJM4558D DIP PCS 2 U601 U602 0880230 IC PT2399 DIP PCS 1 U603 1562466 PCB 6963A 1 PCS 1 2120807 FLAT CABLE 6P90 2 5 2PLUG WITH L NEEDLE REVERSE PCS 1 XS601 1940024 SOCKE...

Страница 42: ...CB 9963 0 PCS 1 1 A DECODE BOARD MATERIAL CODE MATERIAL NAME SPECIFICATIONS UNIT UANTIT LOCATION 0090001 SMD RESISTOR 1 16W 0 5 0603 PCS 30 R201 R204 R212 R222 R228 R234 R236 R245 R247 R251 R255 R257...

Страница 43: ...34 C239 C241 C254 C256 C259 C26 7 C274 C279 C282 C301 C3 03 C305 C309 C311 C312 C3 23 C2138 C2143 C2150 C21 52 C2155 C2157 C2160 C216 2 C2164 C2166 C2175 0310058 SMD CAPACITOR 25V 104 80 20 0603 PCS 8...

Страница 44: ...S 1 U219 0880562 IC 4580 SOP PCS 1 U219 0880361 IC 4558 SOP PCS 1 U219 0880322 IC MM74HCU04M SOP PCS 1 U205 0880513 IC HCU04 SOP PCS 1 U205 0881275 IC IC42S16100 7T SOP PCS 2 U203 U204 0881182 IC LM11...

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