Akai ADP-841 Service Manual Download Page 37

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.Service Tools and Equipment

.1Service Tools and Equipment Table

Application Name

DVD Testing Disc

General

General Tools screwdriver etc.

CD Testing Disc

Confirm

VCD Testing Disc

Oscillograph

Probes

AV Cables

Adjust

TV Monitor

Searing-iron

Antistatic wrist strap

Grounding for electrostatic

breakdown

Conductive material steel sheet

.2 Storing and Handling Test Discs

It is important for a DVD testing disc keeping its surface precise.

Please care for storing and using it.

Do not place the disc on worktable directly after using.

Do not store discs in places subject to direct sunlight or near heat

sources.

Summary of Contents for ADP-841

Page 1: ...www akai ru Models ADP 841 ADP 841M PORTABLE DVD...

Page 2: ...Manual 1 The System Block Diagram the Block s Function Description 2 Schematic Circuit Diagram 3 Interconnection Diagram 4 Critical Commpoents List 5 IC Date Sheet IC Description 6 Service Tools and E...

Page 3: ...Diagram the Block s Function Description DVD System Block 2 Schematic Circuit Diagram DC to DC MP1410 1 Mech DM 12 pick up DD30 2 Servo MPEG MT1389DE B DISPLAY 8 4 TFT LCD INVERTER TFT LCD driver IR3...

Page 4: ...0 1uF R111 10KF L104 6 8uH C112 0 01uF CON9 TH8AW 5 4 3 2 1 6 7 8 5 4 3 2 1 6 7 8 C115 180pF U11 MP1410ES 1 2 3 4 8 7 6 5 BS Vin Vsw GND Sync EN Comp FB C103 0 01uF D11 B230A 1 2 C110 220uF 6 3V C109...

Page 5: ...1 8 4 D25 1N5819 1 2 C259 0 1uF C233 0 1uF Q23 3906 1 2 3 U21 NCP1117open 3 1 2 IN GND OUT R222 0R U24 AMS1117 ADJ 3 2 1 4 VIN VOUT ADJ VOUT R227 560RF R225 4 7K C246 10uopen C263 0 1uF C256 100uF 6 3...

Page 6: ...47uF 10V C333 0 1uF F308 FB C369 0 1uF R313 560R C332 0 1uF C305 10uF 6 3V C335 0 033uF C374 0 1uF C375 0 1uF R355 330R R706 R R327 4R7 C396 0 1uF R713 15K C707 0 1uF U72 ADM869L 1 4 5 12 16 7 8 9 10...

Page 7: ...410 33R R412 33R R407 10K R404 680R C403 0 1uF C405 0 1uF C409 0 1uF U41 ESMT M12L64164A 1 2 4 12 5 7 9 8 10 46 11 13 15 16 17 18 19 35 22 23 24 25 26 14 41 29 30 31 32 33 34 36 37 38 39 40 43 42 44 5...

Page 8: ...1 1K C531 0 47uF R518 560R J3 ST 006C 050 300 5 4 2 3 1 GND GND AUDIOL AUDIOR AUDIOL J8 ST 212C 050 100 2 3 4 1 5 6 7 F501 R701 10R 0805 C521 0 1uF Q57 9014 1 2 3 U66 F_TB3GA4 5Z 1 2 3 4 5 6 7 8 2 3 4...

Page 9: ...GND HGND 5V 5V GND SVIDEO_C SVIDEO_Y GND TIMD1 TIMD2 INT EXT PAL NTSC SCL SDA C617 22pF L711 22uH PIO54 M8 MARK 1 1 C611 22pF C603 330pF C601 270pF R608 75R R609 75R C608 22pF C615 100pF J5 ST 013 8 2...

Page 10: ...B N I G N I R 1 C C V J D A F P M A L C R E T L I F C G A T U O C G A E R U T C I P V 6 1 U 0 1 9 A C Z H M 9 1 6 3 3 4 4 1 Y 1 2 C u 1 0 1 P J W A 0 2 H T 2 1 1 1 0 1 7 5 4 3 3 1 9 2 4 1 5 1 6 1 7 1...

Page 11: ...F F O G V C N H G V C N 1 V T S 2 V T S V P C R L G 3 E O 2 E O 1 E O M O C V 1 H T S D N G R G B D N G C C V 1 H P C 2 H P C 3 H P C V 0 5 R L S C N H E O 2 H T S GND GND R 0 5 8 R 1 0 1 C U 1 0 1 1...

Page 12: ...Singing Appellation MPS1410 IC MX29LV800 IC TPA6011 IC MT1389DE B IC FN5331 IC AT5654 IC MC33202 IC IR3Y29BM IC PVI 1004B C IC...

Page 13: ...ltage To prevent current limit run away during a short circuit fault condition the frequency foldback comparator lowers the oscillation frequency when the FB voltage is below 650mV COMP Pin 6 Compensa...

Page 14: ...put AC coupled input path A 3 DVDB Analog Input AC coupled input path B 4 DVDC Analog Input AC coupled input path C 5 DVDD Analog Input AC coupled input path D 6 DVDRFIP Analog Input AC coupled DVD RF...

Page 15: ...5 CSO RFOP Analog output 1 Central servo 2 Positive main beam summing output 26 RFLVL RFON Analog output 1 RFRP low pass or 2 Negative main beam summing output 27 SGND Ground Analog ground 31 FEO Anal...

Page 16: ...PW M Analog Output Tray PWM output Tray open output 40 PWMOUT1 V_ADIN9 Analog Output 1 1st General PWM output or 2 Version AD input 9 41 TRO Analog Output Tracking servo output PDM output of tracking...

Page 17: ...ddress 12 70 HIGHA5 Inout 2 16MA SR PU Microcontroller address 13 69 HIGHA6 Inout 2 16MA SR PU Microcontroller address 14 68 HIGHA7 Inout 2 16MA SR PU Microcontroller address 15 91 AD7 Inout 2 16MA SR...

Page 18: ...ut 2 16MA SR PU Microcontroller address 6 IO 58 IOA7 Inout 2 16MA SR PU Microcontroller address 7 IO 67 A16 Output 2 16MA SR Flash address 16 92 A17 Output 2 16MA SR Flash address 17 60 IOA18 Inout 2...

Page 19: ...1 4 101 UP1_5 Inout 4MA SR PU SMT Microcontroller port 1 5 102 UP1_6 SCL Inout 4MA SR PU SMT 1 Microcontroller port 1 6 2 I2 C clock pin 103 UP1_7 SDA Inout 4MA SR PU SMT 1 Microcontroller port 1 7 2...

Page 20: ...5 part I DSD data sub woofer channel or Microphone output III GPIO 213 ALRCK Inout 4MA PD SMT 1 Audio left right channel clock 2 Trap value in power on reset I 1 use external 373 II 0 use internal 37...

Page 21: ...ne I Microcontroller external interrupt 2 II GPIO 225 SPDIF Output 2 16MA SR ON OFF SPDIF output Video Interface 18 189 DACVDDC Power 3 3V power pin for VIDEO DAC circuitry 190 VREF Analog Bandgap ref...

Page 22: ...roller external interrupt 3 II Audio serial data 5 part II DSD data sub woofer channel or Microphone output III GPIO 207 HSYN INT4 V_ADIN2 Inout 4MA SR SMT 1 Horizontal sync input output 2 While no Ex...

Page 23: ...ing DRAM size 4MB I GPIO 157 CKE output DRAM clock enable 156 RCLK Inout Dram clock 154 NC 153 NC 151 RA3 Inout DRAM address 3 150 RA2 Inout DRAM address 2 149 RA1 Inout DRAM address 1 147 RA0 Inout D...

Page 24: ...IN6 Inout 1 Serial interface port 3 clock pin 2 Version AD input port 6 3 GPIO 51 TDO V_ADIN7 Inout 1 Serial interface port 3 chip select 2 Version AD input port 7 3 GPIO Note 1 The Main column is the...

Page 25: ...IR3Y29BM Pin Description...

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Page 32: ...7 2 28 A 9 2F 8 2F 2 9 2 2 2 3 D 9 9D0 2 D 9D0 7 2 D 7 2 B 2F 2 3 D A B F 8 2 A 9 F D 9 2 8 2 F D 2 2 9 F D9 2F 9 9 F D2 9 2F 99 D 9 2 92 F DD 2 2 9 9 F D 2 9D F F DB 2 9 F DA 9B F F D8 9A F F 9 F F...

Page 33: ...9 G H H 7 G H3H 9 G H H D 7 G H3H 9 G H H 7 G H3H 9 G H H B 7 G H3H 9 G H H A 8 8 9 A GH3H 9 GH H 2 7 9 GH3H 9 G H 7 7 G H3H 9 G H H D 7 7 G H3H 9 G H H 3 D 2 2 2 B 9 A 9 9 2 8 2 3 3 3 3 I 3 I 9 3 3 3...

Page 34: ...9 8 AD B 3 A A 3 9 AB 8 3 3 2 AA B 9D F F G H3H D 9 F G H H A 9 7 GH3H 9 GH H 9B F J G H3H F G H3H J 9 F G H H J 9A F 9 2 F G H3H 9 F G H H 98 F F G H3H D3 9 F G H H D3 2 2 2 2 2 29 9 9 2 22 3 3 3 3 3...

Page 35: ...2A B 92A 9 9 9 D A 928 2 2 2 8 9 9 28 9 B G H3H 9 9 G H H 9 B G H3H 9 G H H 9 2 3 D 2 2 2 D B A 8 L D 9 L9 G H3H 9 9 G H H 9 D 2 L2 G H3H 2 9 G H H 2 D9 A G H3H 9 G H H D2 9 A G H3H 9 9 G H H 9 D 9 GH...

Page 36: ...9 F G H3H 9 9 F G H H F F G H3H 9 F G H H 9 7 G H3H A 9 G H H 2 7 G H3H B 9 G H H 7 G H3H 9 G H H 9 2 D 7 D 2 2 7 2 2 D B 7 G H3H 9 9 2 2 D 92A 928 9 9 2 9 9 G H H 9 9 2 2 D 92A 928 9 9 2 9 A 7 G H3H...

Page 37: ...bles Adjust TV Monitor Searing iron Antistatic wrist strap Grounding for electrostatic breakdown Conductive material steel sheet 6 2 Storing and Handling Test Discs It is important for a DVD testing d...

Page 38: ...90 percent area Do not place in an area with a lot of dust Keep away from direct sunlight domestic heating equipment Do not fall any objects into the unit Care should be taken so that liquids are not...

Page 39: ...ny other units producing heat Condensation Lens could be moistening in these cases Turn on heater shortly In a very wet room Move the player from a cold environment to a heat environment quickly Being...

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