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Diagnostic Software Descriptions and Troubleshooting

EN 18

DVD 620 /0X1

5.

5.

Diagnostic Software Descriptions and Troubleshooting

5.1

Dealerscript

5.1.1

Purpose of Dealer Script

The dealer script can give a diagnosis on a standalone DVD 
player, no other equipment is needed to perform a number of 
hardware tests to check if the DVD player is faulty. The 
diagnosis is simply a "error" or "pass" message. No indication 
is given of faulty hardware modules. Only tests within the scope 
of the diagnostic software will be executed hence only faults 
within this scope can be detected.

5.1.2

Contents of Dealer Script

The dealer script executes all diagnostic nuclei that do not 
need any user interaction and are meaningful on a standalone 
DVD player.
The nuclei called in the dealer script are the following (the 
number after each nucleus name corresponds with the number 
being on the local display when the nucleus is executed during 
the dealer script):

Nucleus

Figure 5-1 

Dealer Script

Figure 5-2 

Display

Nucleus

Nucleus

Description

Countdown

Number

Name

6 

6 

PapChksFl 

Calculate and verify checksum of FLASH memory

5 12 

PapI2cDisp

Checks the I2C interface with the slave processor on

the display board

4 

13 

PapS2bEcho 

Checks the I2C interface to the basic engine

3 

11 

PapI2cNvram 

Checks the I2C interface with the NVRAM

2 

15 

PapNvramWrR 

Pattern test of all locations in the NVRAM

1

16

CompSdramWrR 

Pattern test of all locations in the SDRAM(s)

CL 16532162_026.eps

080102

Press 2 keys simultaneously

<OPEN/CLOSE> + <PLAY>

Connect to mains.

During the test, the following display
is shown: the counter counts down
from the number of nuclei to be run
before the test finishes. Example:

SET O.K.?

YES

NO

To exit DEALER SCRIPT, disconnect from mains

CL 16532162_027.eps

090102

Содержание DVD 620

Страница 1: ...2 Contents Page 1 Technical Specs and Connection Facilities 2 2 Safety Instructions Warnings Notes and Service Hints 3 3 Directions for Use 6 4 Mechanical and Dismantling Instructions 16 5 Diagnostic Software Trouble Shooting and Test Instructions 18 6 Wiring Block Diagrams Block Diagram 37 Wiring Diagram 38 7 Electrical Diagrams and Print Layouts Diagram PWB Power Supply Unit 39 40 AV Board Video...

Страница 2: ... dB CONNECTIONS SCART Euroconnector Video Output Cinch yellow Audio L R output Cinch white red Digital Output 1 coaxial IEC958 for CDDA LPCM IEC1937 for MPEG1 2 Dolby Digital CABINET Dimensions w x h x d 435 x 75 x 210 5 mm Weight Approximately 1 9 Kg typical playing time for movie with 2 spoken languages and 3 subtitle languages Specifications subject to change without prior notice Specifications...

Страница 3: ...istband with resistance Keep components and tools at this same potential Available ESD protection equipment Complete kit ESD3 small tablemat wristband connection box extension cable and earth cable 4822 310 10671 Wristband tester 4822 344 13999 Be careful during measurements in the live voltage section The primary side of the power supply pos 1005 including the heatsink carries live mains voltage ...

Страница 4: ... 5 VAL6013 01 Solder Joints Figure 2 6 2 3 3 ComPair For assistance with the repair process of the monoboard an electronic fault finding guidance has been developed This program is called ComPair This ComPair program is available on CDROM The version of the CDROM for repair of the monoboard is V1 3 or higher and can be ordered with codenumber 4822 727 21637 This is an update CDROM so when the ComP...

Страница 5: ...Safety Instructions Warnings Notes and Service Hints EN 5 DVD 620 0X1 2 Mother Board Figure 2 9 ...

Страница 6: ...H THE POWER SWITCHED ON The DVD VIDEO player is in conformity with the EMC directive and low voltage directive Manufactured under license from Dolby Laboratories Dolby Pro Logic and the double D symbol are trademarks of Dolby Laboratories This product incorporates copyright protection technology that is protected by method claims of certain U S patents and other intellectual property rights owned ...

Страница 7: ...able SCART cable not available for all versions Owner s Manual Safety Information Before operating the DVD player check that the operating voltage indicated on the typeplate or the voltage indication beside the voltage selector is identical with the voltage of your local power supply If not please consult your dealer Place the DVD player on a flat hard and stable surface There must be sufficient r...

Страница 8: ...CVBS VIDEO OUT on the DVD player to the CVBS VIDEO IN 2 Connect the Left and Right AUDIO OUT on the DVD player to the Left and Right AUDIO IN on the TV TO AUDIO IN TO VIDEO IN TO SCART IN COAXIAL DIGITAL AUDIO OUT PCM MPEG2 Dolby Digital TV OUT L R CVBS VIDEO OUT AUDIO OUT Connecting to an Audio System 1 You can also listen to the sound of audio CDs and DVD video discs by connecting to an optional...

Страница 9: ...cting to Optional Equipment A digital component with a built in MPEG 2 or Dolby Digital decoder allows you to enjoy the surround sound while producing the effect of being in a movie theater or a concert hall The player outputs the surround sound signals from the DIGITAL OUT COAXIAL connectors If your receiver has a MPEG 2 or Dolby Digital decoder 1 Connect the COAXIAL DIGITAL AUDIO OUT of the DVD ...

Страница 10: ... multi channel karaoke DVD is being played The karaoke channels on the disc will then be mixed into a normal stereo sound Preparation 12 English 16 9 4 3 Letter Box 4 3 Pan Scan Personal Preferences In the Personal Preferences settings menu you can customize you player to suit your own particular requirements General operation 1 Press SYSTEM MENU on the remote control 2 The will be highlighted in ...

Страница 11: ...for 5 seconds Press STOP again or unload the discs the auto resume is cancelled To activate auto resume Reload the disc and press PLAY Playback starts from the begining of the title When resume icon appears on the screen press PLAY again Playback will resume from the point where the playback was last stopped Note Resume feature is also applicable to VCDs and SVCDs Operation 14 English Language Sel...

Страница 12: ...S Some Video CDs have Play Back Control PBC which is a predefined playback sequence stored on the disc see Playback Control section TRACK 1 TRACK 2 INDEX 1 INDEX 2 INDEX 1 INDEX 2 INDEX 3 VIDEO CD Playing a disc 1 Insert a disc and close the tray playback starts automatically The number of tracks and the total playing time of the disc will appear on the TV screen and DVD player s display 2 Press P...

Страница 13: ...ramme list will be placed on top of the existing list DVD VCD Storing a Programme 1 While playback is stopped select VIDEO FTS c in the menu bar 2 Press 4 to open the menu bar The VIDEO FTS c menu appears 3 Press 2 or 1 or FTS on the remote control to select ON Operation 18 English Slow Motion DVD VCD 1 Select SLOW MOTION in the menu bar and press 4 Playback will pause 2 Use the cursor keys 1 2 to...

Страница 14: ...to the complete disc or to certain scenes on the disc These scenes are rated from 1 to 8 and alternative more suitable scenes are available on the disc Ratings are country dependent The Parental Control feature allows you to prevent discs from being played by your children or to have certain discs played with alternative scenes Access Control 20 English Storing titles tracks 1 Press 4 to select TI...

Страница 15: ...1 When disc playback is stopped select ACCESS CONTROL in the Personal Preferences menu using the 3 4 keys 2 Enter your 4 digit code If necessary enter the code a second time 3 Move to Parental Control using the 3 4 keys 4 Move to value adjustment 1 8 using the 2 key 5 Then use the 3 4 keys or the numerical keys on the remote control to select a rating from 1 to 8 for the disc inserted Rating 0 dis...

Страница 16: ... and 3 on the bottom Place Front panel in front of the set service position TopCover 0232 Remove 7 screws 233 Lift cover to remove DVD Loader 0001 Remove flex and cable connections to monoboard 1001 Open tray see instruction below Unlock Tray cover 0219 Remove 4 screws 0217 Loader to bottom frame Close tray Lift module up slightly and move backward to remove Power supply unit 1200 Remove cable con...

Страница 17: ...Mechanical and Dismantling Instructions EN 17 DVD 620 0X1 4 Exploded View CL 16532162_001 eps 201201 0001 1500 1700 1600 1001 ...

Страница 18: ...ipt are the following the number after each nucleus name corresponds with the number being on the local display when the nucleus is executed during the dealer script Nucleus Figure 5 1 Dealer Script Figure 5 2 Display Nucleus Nucleus Description Countdown Number Name 6 6 PapChksFl Calculate and verify checksum of FLASH memory 5 12 PapI2cDisp Checks the I2C interface with the slave processor on the...

Страница 19: ...ve tests this part of the player test depends strongly on user interaction and input to determine nucleus results and to progress through the full test Reading the error log and error bits information can be useful to determine any errors that occurred recently during normal operation of the DVD player 2 The loop test this part of the player test will loop through the list of nuclei indefinitely t...

Страница 20: ...ayed twice or more with the second digit increased by 1 If the user does not press all keys minimally once in any order the DispKeys nucleus will return FALSE and cause an error in the overall result of the player script The user can leave the keyboard test by pressing the PLAY key on the local display of the DVD player for at least one full second The result of the keyboard test is shown on local...

Страница 21: ...g message Figure 5 15 If the user presses STOP the P50 test will be skipped If the user presses OPEN CLOSE the P50 test is performed and the result is displayed as follows Test successful Figure 5 16 Test fails Figure 5 17 Press the PLAY key to continue to the next text RC Key id Hexadecimal code STANDBY 0C 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 0 0 RETURN 83 DISPLAY EF DISC MENU 54 SYSTEM MENU 82 CU...

Страница 22: ...e STOP key will indicate the sound was inaudible or incorrect Note Only for double scart models SCART loop through will be simultaneously active during this test SCART loop through will be measured with the aid of an external video source By pressing the PLAY key there will be switched over to the external source This must become now visible on the TV srcreen using the SCART The local display will...

Страница 23: ...cal display looks as follows Figure 5 25 By pressing OPEN CLOSE the user confirms that the disc motor is running Pressing STOP indicates the disc motor does not work Pressing PLAY proceeds to the next test after a reset of the disc motor nucleus BeDiscMotorOff If the user presses PLAY before pressing OPEN CLOSE or STOP the result of this test will be TRUE disc motor is running 5 5 5 Focus Test Vis...

Страница 24: ...rd the user can proceed to the next test 5 5 10 Error Bits Reading the error bits is done by nucleus LogReadBits The display during the errorbits readout looks as follows Figure 5 31 Only the identification number decimal representing set errorbits will be shown By pressing OPEN CLOSE or STOP the user can move forward or backward respectively through the logged errorcodes If the display only shows...

Страница 25: ...eason system was too busy doing other jobs 0001 COMMUNI CATION Usually a protocol error Reason bad connection between engine and processor 0002 TIME OUT Error Number Error name Explanation 0101 S2B_ILL_CO MMAND Parameter s not valid for this command Reason some communication problem between UART and engine 0102 S2B_ILL_PAR AM Command not allowed in this state or unknown Reason see S2B_ILL_COMMAND ...

Страница 26: ...qualified service person should reprogram the mono board After reset of NV memory or repair of the mono board all the customer settings and also the region code will be lost Reprogramming of the mono board will put the player back in the state in which it has left the factory i e with the default settings and the allowed region code Reprogramming will be done by way of the remote control Put the p...

Страница 27: ...POWER ON TO ACTIVATE TRADE MODE PLAY 259 PLAY DURING STOP MODE AND W O DISC PRESS REMOTE KEYS COMBINATION PLAYER IS IN TRADE MODE WHEN PRESSING FRONT KEYS THE PLAYER DOESN T RESPOND POWER ON TO DEACTIVATE TRADE MODE PLAY 259 PLAY DURING STOP MODE AND W O DISC PRESS REMOTE KEYS COMBINATION PLAYER IS IN NORMAL MODE WHEN PRESSING FRONT KEYS THE PLAYER WILL RESPOND When the player is in Trade Mode the...

Страница 28: ...t can be given are the numbers of the nuclei Command Overview of Nuclei The following table gives an overview of all available nuclei The first column contains an identification number the second contains the name of a nucleus and the last column indicate the description of the nucleus Note User confirmation is necessary during front panel tests Basic Diagnostic Nuclei Processor and Peripherals Co...

Страница 29: ...onfiguration area from NVRAM 35 MiscNvramReset NVRAM Reset 36 MiscNvramMod Modify NVRAM contents 46 MiscApplVer Read version of application software 47a MiscTrayOpenNr Read the number of times the tray opened 47b MiscPowerOnTime Read the total time the player s power has been on 47c MiscPlayTimeCddaVcd Read the Playtime of CDDA and VCD discs 47d MiscPlayTimeDvd Read the Playtime of DVD discs Ref R...

Страница 30: ...a 2 Mute Off 19b MAIN AUDIO PINK NOISE MENU 1 Pink Noise On 20a 2 Pink Noise Off 20b MAIN AUDIO SINE WAVE MENU 1 Audio Sine On 21a 2 Audio Burst On 21b MAIN AUDIO DIGITAL PORTS MENU 1 LFE_SEL High 56a 2 LFE_SEL Low 56b MAIN VIDEO COLOURBAR MENU 1 Colourbar DENC On PAL 23a 2 Colourbar DENC On NTSC 23c 3 Colourbar DENC MPEG Off 23b 4 ProgressiveScan MPEG On 24a 5 Enhanced YUV MPEG On 24b 6 Set Video...

Страница 31: ...Engine 3923 Communication time out error 3924 Basic Engine returned error number 0xXX 3800 Test successful 3801 Parity error from Basic Engine to Serial 3802 Unexpected response from Basic Engine 3803 Communication time out error 3804 Basic Engine returned error number 0xXX 3805 Focus loop could not be closed 3820 Test successful 3821 Parity error from Basic Engine to Serial 3822 Unexpected respon...

Страница 32: ...ssful 4321 Parity error from Basic Engine to Serial 4322 Unexpected response from Basic Engine 4323 Communication time out error 4324 Basic Engine returned error number 0xXX 3700 Version X Y Z 3701 Parity error from Basic Engine to Serial 3702 Unexpected response from Basic Engine 3703 Communication time out error 3704 Basic Engine returned error number 0xXX 5800 Test successful Error code Error t...

Страница 33: ...3103 I2C bus busy before start 3200 Show error bit 3201 Error log is invalid 3202 I2C bus busy before start Error code Error text 3203 Error log could not be read from NVRAM 3300 Error log is cleared 3301 Error log could not be cleared 3302 I2C bus busy before start Error code Error text 3400 Test successful 3401 The configuration data could not be read from NVRAM 3402 I2C bus busy before start 35...

Страница 34: ...e between ON and OFF use the following commands 5 9 3 Audio DAC And Amplifier Ensure that the Audio mute signal is OFF To check the DAC and buffer amplifier send the following commands 4720 Total Power On time minutes XX 4721 The total power on time could not be read from NVRAM 4722 I2C bus busy before start 4740 Total CDDA VCD disks Play time minutes XX 4741 The playtime of CDDA VCD disks could n...

Страница 35: ...l use the following command and check the voltage level at pin 16 of 7200 5 9 8 Front Display To check the segment display of the FTD the following command can be used And for full detail description of the test refer to the chapter of Diagnostic Software Player Script which can be found in chapter Diagnostic Software Description and Troubleshooting 5 9 9 IR Receiver Check at pin 22 of 7300 and ob...

Страница 36: ...Diagnostic Software Descriptions and Troubleshooting EN 36 DVD 620 0X1 5 Personal Notes ...

Страница 37: ...UFFER 2 5 SCART 0 1 MUTE 4 4 2 12Vstby 3V3 5V PCMDATA0 PCMCLK PCMLRCLK PCMSCLK SDA SCLK 7500 SYSTEM DATA BUS SYSTEM ADDRESS BUS SYSTEM CONTROL BUS CVBS Y RGB YUV S VHS DIG OUT PCM 4X SERVICE 4 6 RSTNF EEPROM M24C32 SERVICE SERIAL INTERFACE Y C VID STi5580 1704 2 32Kb RSTNB 64Mb SDRAM TSOP 54 MT48LC4M16A2TG 16Mb FLASH SO44 0200 I2C 1100 4 7 VSYNC HSYNC 27M_CLK uprocessor TMP47C416 SDRAM CONTROLLER ...

Страница 38: ...131 SCART1 1 4 8 4 1 5V GND 8V MOTHERBOARD GND PCMCLK PCMLRCLK GND PROJECT DVD_2002 doc 3139_249_21461 29 17 23 7 12 13 2 30 CVBS_VID 3V3 SPDIF 5V 12V GND 32V 2 3 2p 100mm 1002 3139 110 37391 4p 100mm 1501 3139 241 00121 30p 209mm FOLD SIO_CLK 10 8 GND 5V GND 8V 30P Flex Cable Connector 1 3 0 LOADER 11 19 27 25 22 LOADER 8 LOADER CVBS_REF CVBS_VID 3V3 3V3 5V 12V 28 GND MUTE 12V 12V 5V 1001 1000 G_...

Страница 39: ...6 A10 F285 E10 F286 E10 F290 F6 F291 F6 1N4006 6110 32V 8V 3V3 12V 5V Vreg1 3V3 12V 5V 8V 5V 12V 32V 3238 4R7 3236 4R7 4R7 3237 1N4004 6236 6235 1N4004 3137 6K8 2136 100p F124 F125 22u 5235 2235 100u F123 F121 F122 F119 F120 F118 3235 120R 5115 UF1717V 103YR25 02 1 2 3 4 F217 F208 F202 F200 F201 3 4 5 6 7 8 1 2 3 4 EH B 0200 1 2 0201 EH B 1R 3123 5190 1 10 11 12 13 14 15 16 17 18 2 3 7 9 100p 2291...

Страница 40: ... 5240 A3 5255 B3 6110 B1 6111 B1 6112 B2 6113 B2 6125 A1 6130 A2 6131 A2 6132 A1 6210 B3 6230 B3 6235 A3 6236 A3 6240 A2 6250 B3 6251 B3 6280 B3 7125 B2 7130 A1 7190 A2 7290 A3 9100 B2 9101 A1 9102 A2 9200 A3 9201 A3 9202 A3 9203 A3 Layout Power Supply VFM2002 EU Bottom View 2130 B1 2132 B1 2135 B2 2136 B2 2139 B2 2200 A3 2291 B2 2292 B2 2295 B2 3125 B1 3126 B1 3127 B1 3132 B1 3133 B1 3134 B2 3135...

Страница 41: ...40 I180 2133 I131 3156 220R 3135 3151 10K I185 10K 220p 2141 330R 3133 7160 I173 BC847B 100n 2102 1140 A YKC21 3930 2 1 6101 BAS316 220p 2131 10K 3154 10K 3147 680K 3108 SCART_L 3146 10K SCART_0 SCART_1 KILL_LR 5VM 12VSTBY 3V3 5V MUTE MUTE SCART_R SCART_1 SCART_0 12VSTBY 0 6 12 5V CVBS 5VM 5V KILL MUTE 5VM STDBY_CTRL GREEN RED SIO_DATA SIO_CLK CVBS 5VM BLUE 5VM 0 6 12 PCM_CLK SPDIF PCM_LRCLK PCM_D...

Страница 42: ...9 100n 4K7 3219 3224 330R 3225 10K 4K7 3213 470p 7223 BC847B 470p 2212 2215 3223 330R 3214 200R 2231 3n3 2239 2240 100u 100u 2216 100n 3217 10K 3226 3241 200R 2253 100n 10K 4K7 3239 3K9 3232 2236 100u 560p 2230 I172 BC847B 100n 2208 7220 100p 2214 100n 2206 2234 100p 7222 BC847B 5V_DAC SCART_R SCART_L MUTE MUTE 5V_DAC KILL_LR 5V_DAC 5V 5V_DAC 5V PCM_DATA0 PCM_LRCLK PCM_SCLK PCM_CLK SPDIF CSN_DAC S...

Страница 43: ...R62 37 R63 38 R70 T1 18 R71 WTO_ 19 R72 XTIN 20 R73 XTOUT 21 22 R80 HOLD_ INT2_ 23 R81 T2 R82 RSO 17 R90 SI 24 R91 SO 25 R92 SCK_ 2 P12 3 P13 4 P20 5 6 P21 7 P22 8 P23 41 P30 P31 42 P32 43 P33 44 R40 27 R41 28 R42 29 R43 30 R50 31 R51 TMP47C416 7300 9 K00 CIN0 10 K01 CIN1 11 K02 CIN2 12 K03 CIN3 1 P10 P11 DGND DGND 3331 330R DGND 7310 MC79L24 3 GND 2 IN 1 OUT 2306 10n 25 26 27 28 29 31 32 4 5 6 7 ...

Страница 44: ... 3426 MC78L05 7423 2 6 7 3 9400 1K DGND 6420 PDZ 6 2B 3424 1K 4402 10K 3403 2421 100u 3408 4K7 DGND 100u 2420 DIPMATE 1400 BC857B 7420 4K7 3421 2434 100n DGND IRLML2502 7401 DIPMATE 1410 1 2 3 4 2433 330u DGND 2440 100u DGND 100n 22n 3407 680R 2431 100n 2401 47K 3404 100u 2436 4405 BC847B 10K 3406 7403 STDBY_CTRL 5V 5V_DAC 12VSTBY 12VSTBY 5VM 5V 3427 4K7 8V 8V 32V 5VSTBY 5VM 3V3 BARE PCB 3139 243 ...

Страница 45: ...6 9909 H6 9910 G6 9911 H6 9912 I6 9913 H6 9914 I6 9915 I6 9916 J4 9917 L5 9918 H5 9919 M6 9920 M7 9921 F7 9922 F7 9923 F8 9924 F8 9925 F8 9926 F6 9927 G9 9928 I8 9929 I8 9930 J9 9931 J9 9932 J9 9933 K9 9934 K9 9935 K9 9936 K9 9937 L9 9938 L9 9939 L9 9940 L9 9941 K9 9942 K9 9943 K10 9944 K10 9945 L10 9946 L10 9947 L10 9948 L11 9949 I11 9950 E9 9951 E9 9952 E9 9953 D9 9954 D9 9956 C11 9957 C10 9958 ...

Страница 46: ...157 D5 3158 C5 3159 D6 3160 C12 3161 B13 3162 C11 3200 E7 3201 E9 3210 E10 3211 E10 3212 E10 3213 E10 3214 D10 3215 E10 3216 E10 3217 D10 3218 D10 3219 D10 3220 A11 3221 A10 3222 A11 3223 B11 3224 A10 3225 A12 3226 B11 3230 C11 3231 C10 3232 C10 3233 C10 3234 C10 3235 C9 3236 C10 3237 C10 3238 C10 3239 C10 3240 B11 3241 A11 3242 A11 3250 A2 3251 B1 3311 K10 3320 J4 3321 J3 3322 J4 3330 M8 3331 K9 ...

Страница 47: ...Electrical Diagrams and Print Layouts EN 47 DVD 620 0X1 7 Layout Motherboard Part 1 Bottom View PART 1 CL 16532162_010a eps 100102 ...

Страница 48: ...EN 48 DVD 620 0X1 7 Electrical Diagrams and Print Layouts Layout Motherboard Part 2 Bottom View PART 2 CL 16532162_010b eps 100102 ...

Страница 49: ...Electrical Diagrams and Print Layouts EN 49 DVD 620 0X1 7 Layout Motherboard Part 3 Bottom View PART 3 CL 16532162_010c eps 100102 ...

Страница 50: ...EN 50 DVD 620 0X1 7 Electrical Diagrams and Print Layouts Layout Motherboard Part 4 Bottom View PART 4 CL 16532162_010d eps 100102 ...

Страница 51: ...220 B10 I221 A10 I223 A10 I230 C10 I231 C11 I232 C10 I232 D11 I233 D10 I234 C9 I235 C9 I236 D9 I237 D10 I238 B11 I240 B11 I241 A12 I243 A11 I250 A2 I251 B1 I252 B1 I253 A1 I254 A1 I255 B2 I256 B12 I257 B12 I258 A11 I259 B11 I300 M12 I301 M13 I302 I1 I302 J1 I303 K1 I304 H1 I305 L1 I310 K10 I311 I10 I320 I4 I321 J3 I322 J3 I323 K3 I324 J3 I325 J4 I330 K9 I331 J4 I332 J4 I333 L8 I334 L9 I340 I6 I341...

Страница 52: ...A B A B 1500 A1 1510 A3 1520 B3 1530 B3 1510 SKQNAB 4 1500 1 2 3 SKQNAB 1520 SKQNAB 1530 BARE PCB 3139 243 30381 01 8239 210 91540 CL 16532162_007 eps 040102 Front Standby Panel and Layout STANDBY POWER T0 1300 of FRONT FRONT STANDBY ON Dummy 1 2 3 4 1 2 3 4 A B A B 1600 A2 1610 A3 4600 B4 1 2 SKQNAB 1610 4600 DIPMATE 1600 BARE PCB 3139 243 30381 01 8239 210 91530 CL 16532162_008 eps 040102 ...

Страница 53: ...r DC to DC converter applications The operation frequency varies with the circuit load When the output power demand decreases the switching frequency raises with a maximum frequency of 125 kHz determined by C2107 at pin 5 At this point the internal VCO takes over and starts to decrease the switching frequency This has some benefits compared to a fixed frequency flyback converter The efficiency is ...

Страница 54: ... an output voltage decrease due to an increase in the load the control circuit will operate in the opposite way Primary Current Sensing The current through FET 7125 will result in a voltage drop across R3120 21 22 RSENSE This line goes to pin 11 of 7130 which is the current sense input The higher the input voltage the more the primary current is limited In this way the maximum output power of the ...

Страница 55: ... During STDBY mode there will be no power to the audio DAC The registers of the audio DAC are in their default values each time the power to the IC is cut off The slave uP is required to program the DAC each time after exiting from STDBY mode This requires three signal lines CSN Chip Select Pin CCLK Control Clk Input Pin CDTI Control Data Input Pin in Serial Mode CCLK and CDTI are also used as SIO...

Страница 56: ...ght Emitting Diode LPCM Linear Pulse Code Modulation LPF Low Pass Filter LRCLK Left Right clock LVTTL Low Voltage Transistor Transistor Logic 3 3V logic MPEG Motion Pictures Experts Group NC Not Connected NTSC National Television Standard Committee Colour system mainly used in North America and Japan Colour carrier NTSC M N 3 579545 MHz NTSC 4 43 4 433619 MHz this is a VCR norm it is not transmitt...

Страница 57: ... Over Current Protection OCP V 1 5V More than 128ms Toff f Verr Max Toff f Ct VCO Feedback Startup protection circuitry Internal Vcc 1 3 4 5 10 11 12 14 Internal regulator HV Demag FB Ct Gnd Isense Vcc Verr max 3V Verr min 10mV DRV Driver Last pulse of demag after 4µs 1 3 1V Rf Ri Current comparator Flip Flop 250mV clamp 250mV 1V max setpoint Clock R D Q Verr Internal Clamp Over Voltage Protection...

Страница 58: ... 30621 1N4148 6130 4822 130 30842 BAV21 6131 4822 130 30842 BAV21 6132 4822 130 34173 BZX79 B5V6 6133 4822 130 83757 MCL4148 6210 5322 130 31938 BYV27 200 6230 9322 161 78682 DIO REC SB360L 7024 GI00 B 6235 5322 130 34574 1N4004G 6236 5322 130 34574 1N4004G 6240 4822 130 42606 BYD33J 6250 9340 559 53112 DIO REC BYW95C 24 PHSE B 6280 4822 130 30842 BAV21 6298 4822 130 83757 MCL4148 7125 9322 157 37...

Страница 59: ...62W 3320 4822 051 30103 10k 5 0 062W 3321 4822 051 30103 10k 5 0 062W 3322 4822 051 30102 1k 5 0 062W 3330 4822 051 30471 470Ω 5 0 062W 3331 4822 051 30331 330Ω 5 0 062W 3332 4822 051 30331 330Ω 5 0 062W 3333 4822 051 30103 10k 5 0 062W 3334 4822 051 30472 4k7 5 0 062W 3335 4822 051 30471 470Ω 5 0 062W 3336 4822 051 30472 4k7 5 0 062W 3341 4822 051 30109 10Ω 5 0 062W 3342 4822 051 30109 10Ω 5 0 06...

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