BBK BBK921D Service Manual Download Page 30 | Manualshive

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FUNCTIONAL BLOCK DIAGRAM

1Mbit x 4banks x 16 I/O Synchronous DRAM

X decoders

State Machine

A0

A1

A11

BA0

BA1

Address buffers

Address
Registers

Mode Registers

Row

Pre

Decoders

Column

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 Buffer & Logic

Bank Select

Sense AMP & I/O Gate

CLK

CKE

CS

RAS

CAS

WE

UDQM

LDQM

1Mx16 Bank 3

X decoders

X decoders

Memory

Cell

Array

Y decoders

X decoders

1Mx16 Bank 0

1Mx16 Bank 1

1Mx16 Bank 2

IC BLOCK DIAGRAM & DESCRIPTION

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Summary of Contents for BBK921D

Page 1: ...SERVICE MANUAL BBK921D...

Page 2: ...ING AND DISASSEMBLING THE MECHANISM UNIT 6 1 DISASSEMBLY PROCEDURE 6 2 TERMINAL PCB 6 3 CLAMP PLATE UNIT 6 4 TRAY 6 5 TRAVERSE BLOCK 6 6 TRAVERSE GEAR 6 7 OPTICAL PICKUP UNIT 6 7 1 PRECAUTIONS IN OPTI...

Page 3: ...r to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as alminum foil to prevent electrostatic cha...

Page 4: ...3 Precaution of L aster Diode 3...

Page 5: ...4...

Page 6: ...5...

Page 7: ...g transportation and before 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 th...

Page 8: ...6 ASSEMBLING AND DISASSENBLING THE MECHANISM UNIT 6 1Disassembly Procedure 6 2 Terminal P C B 1 Unscrew the screws 2 Remove the solders 3 Remove the connectors 7...

Page 9: ...6 3 Clamp Plate Unit 1 Spread the stopper with hand to silde the tabs and remove the clamp plate unit 6 4 Tray 1 Lift the tray 8...

Page 10: ...block while spreading the hook of the mechanical chassis chassis unit 2 Disengage the tabs from the holes of the mechanical chassis unit 6 6 Traverse Gear 1 Disengage the tabs from the traverse gear...

Page 11: ...emove the connectors 5 7 Terninal P C B 1 Unscrew the screws 2 Remove the solders 3 Remove the connectors 6 7 Optical Pickup Unit 1 Unscrew the screws 2 Remove the spring holders and the springs 3 Pul...

Page 12: ...or and their peripheries 2 Do not use tester to check laser diode Laser diode can be damaged easily 3 The use of soldering iron with anti static feature is recommended when providing short circuit to...

Page 13: ...Disassenbling the Middle Chassis 1 Remove the holders pins 2 Remove the tab 3 It lifts while pulling it in the direction of the arrow 6 9 Disassenbling the Traverse Gear A 1 Remove the traverse gear A...

Page 14: ...tibility 1 Connect 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...

Page 15: ...oscope to the video output 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...

Page 16: ...8 MPEG BOARD CHECK WAVEFORM 2 IC5L0380R PIN 2 WAVEFORM DIAGRAM 1 27MHz WAVEFORM DIAGRAM 15...

Page 17: ...CI6 AUX1 6 VFD_DOUT HD2 DCI2 AUX1 2 HD3 DCI3 AUX1 3 VEE VCC DB8 VCC DB5 DB9 DCS0 VCC VSS TSD0 SEL_PLL0 TSD1 SEL_PLL1 TDMFS TDMCLK TDMDR TDMTSC TWS SEL_PLL2 VEE LA4 LA5 LA6 LA7 LA8 LA9 VSS VCC LA10 LA1...

Page 18: ...DM receive data TDMCLK 29 I TDM clock input TDMFS 30 I TDM frame sync TDMTSC 31 O TDM output enable TWS 32 O Audio transmit frame sync SEL_PLL2 I System and DSCK output clock frequency selection is ma...

Page 19: ...K_EN O DRAM clock enable DWE 71 O DRAM write enable DRAS 72 O DRAM row address strobe DMBS0 73 O SDRAM bank select 0 DMBS1 74 O SDRAM bank select 1 DB 15 0 96 93 90 85 82 77 I O DRAM data bus 15 0 DCS...

Page 20: ...el output data CAMIN3 I Camera YUV 3 PCLK2XSCN 116 I O 27 MHz video output pixel clock CAMIN4 I Camera YUV 4 PCLKQSCN 117 O 13 5 MHz video output pixel clock CAMIN5 I Camera YUV 5 VSYNC 118 I O Vertic...

Page 21: ...t write request DCI_REQ O DVD control interface request AUX4 1 I O Aux4 data I O 1 HRRQ 143 O Host read request AUX4 0 I O Aux4 data I O 0 HIRQ 144 I O Host interrupt DCI_ERR I O DVD channel data erro...

Page 22: ...co CA 94103 4813 Macrovision Licensing Macrovision Copy Protection is supported in the Vibratto series of DVD processors The use of Macrovision s Copy Protection technology in the device must be autho...

Page 23: ...output The ESS RISC processor instruction and data cache subsystem is organized as a two way set associative On a cache load miss and write miss the cache lines are allocated into the cache memory AUX...

Page 24: ...sectors Top or bottom boot block configurations available Embedded Algorithms Embedded Erase algorithm automatically preprograms and erases the entire chip or any combination of designated sectors Emb...

Page 25: ...90 120 Max CE access time ns tCE 55 70 90 120 Max OE access time ns tOE 30 30 35 50 Input Output Buffers X Decoder Y Decoder Chip Enable Output Enable Logic Erase Voltage Generator PGM Voltage Genera...

Page 26: ...29 28 27 26 25 24 23 22 21 20 19 18 A11 A9 A8 A13 A14 A17 WE VCC RESET A16 A15 A12 A7 A6 A5 A4 OE A10 CE DQ7 DQ6 DQ5 DQ4 DQ3 VSS DQ2 DQ1 DQ0 A0 A1 A2 A3 1 31 30 2 3 4 5 6 7 8 9 10 11 12 13 17 18 19 20...

Page 27: ...T Hardware reset pin active low not available on Am29F002NB VCC 5 0 V single power supply see Product Selector Guide for device speed ratings and voltage supply tolerances VSS Device ground NC Pin not...

Page 28: ...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 progress can be terminated by a burst terminate command or can be interrupted a...

Page 29: ...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 Data Input Output Multi...

Page 30: ...mn 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 Buffer Logic Bank Selec...

Page 31: ...ure TA 40 85 C Storage Temperature TSTG 55 125 C Voltage on Any Pin relative to VSS VIN VOUT 1 0 4 6 V Voltage on VDD relative to VSS VDD VDDQ 1 0 4 6 V Short Circuit Output Current IOS 50 mA Power Di...

Page 32: ...rs can deliver up to 1 5 amperes of output current The internal current limiting and thermal shutdown features of these regulators make them essentially immune to overload ABSOLUTE MAXIMUM RATINGS OVE...

Page 33: ...SEG12 SEG13 SEG14 SEG15 SEG16 VCC KEY4 KEY3 KEY2 KEY1 25V FIL FIL SEG1 SEG2 SEG3 VFDST VFDCK VFDAT IR GND GND C405 1 04 R415 1 00 IR VCC R405 33K R401 33K R402 33K R403 33K R404 33K R406 10K R407 10K...

Page 34: ...33 FRONT SCHEMATIC DIAGRAM...

Page 35: ...F 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 2 3 4 1 5...

Page 36: ...35 POWER BOARD SCHEMATIC DIAGRAM...

Page 37: ...9 47uF 16V R602 22K R629 27K TC605 22uF 16V TC603 4 7uF 16V TC606 22uF 16V TC604 4 7uF 16V TC601 4 7uF 16V TC602 4 7uF 16V 9VA C619 10 2 R628 4 7K 5V R620 10K R633 10R 0 25W TC615 100uF 25V C601 1 04...

Page 38: ...37 OK SCHEMATIC DIAGRAM...

Page 39: ...3 A4 7 RY BY 1 A18 2 A17 3 A6 5 A5 6 A3 8 A2 9 A0 11 CE 12 DQ10 20 DQ3 21 DQ11 22 DQ9 18 DQ5 26 DQ6 28 DQ7 30 DQ14 29 DQ15 A_1 31 A9 41 A15 35 VSS 32 A12 38 RESET 44 WE 43 A8 42 A10 40 A11 39 A13 37 A...

Page 40: ...ACK Lt Rt 1 8 1 7 1 6 1 9 2 0 21 JK201 V OUT3 R257 9 1 R R255 1M OPEN R254 10M OPEN C253 1 0 4 R253 3 3 0 R R252 1 0 0 R VCC SPDIF VCC 2 3 4 1 5 XS201 XS05 L239 FBSMT L240 FBSMT L241 FBSMT L242 FBSMT...

Page 41: ...C2104 10 2 C2102 10 2 C2100 10 2 R2123 1K R2121 1K R2120 1K R2117 1K R2124 1K R2122 1K R2119 1K R2118 1K R2111 100K R2112 100K R2113 100K R2114 100K MUTE 1 Q208 2SC1815 Y Q207 2SC1815 Y Q205 2SC1815...

Page 42: ...FBSMT L307 FBSMT L308 FBSMT L309 FBSMT L310 FBSMT L311 FBSMT L312 FBSMT L313 FBSMT L316 FBSMT L317 FBSMT L318 FBSMT L319 FBSMT L331 FBSMT L332 FBSMT L333 FBSMT L334 FBSMT L335 FBSMT L336 FBSMT L337 FB...

Page 43: ...R372 47K R373 47K CPUADR0 CPUADR1 CPUADR2 CPUADR3 NROMCS NSODCCS NWEL NRD WAITSODC GND R339 OPEN R337 OPEN R338 1 0 K R336 1 0 K R342 OPEN R377 OPEN R341 OPEN R340 OPEN CPU3 3V CPU3 3V A6 19 A17 17 R...

Page 44: ...43 MIAN SCHEMATIC DIAGRAM...

Page 45: ...44 MIAN SCHEMATIC DIAGRAM...

Page 46: ...2150 R2151 R2189 R2192 17 CHIP RESISTOR 1 16W 6 8K 5 6 R2136 R2148 R2152 R2153 R2154 R2155 18 CHIP RESISTOR 1 16W 7 5K 5 2 R311 R312 19 CHIP RESISTOR 1 16W 8 2K 5 2 R322 R323 20 CHIP RESISTOR 1 16W 10...

Page 47: ...16V 683 10 0603 6 C2119 C2128 C2131 C2132 C2134 C2138 55 CHIP CAPACITOR 50V 104 80 20 0603 96 C203 C225 C227 C233 C236 C243 C246 C252 C253 C278 C286 C288 C290 C297 C301 C304 C305 C308 C310 C315 C330 C...

Page 48: ...SOCKET AV12 8 4 2G 1 JK201 85 TERMINAL SOCKET CS 09 1 JK202 86 SOCKET 5 PIN 2 0mm 1 XS201 87 SOCKET 2 PIN 2 0mm 1 XS302 88 SOCKET 11 PIN 2 5mm 1 XS202 89 CABLE SOCKET 50 PIN 0 5mm CHIP WITHOUT CLASP...

Page 49: ...16V100U 20 6 7 2 5 3 TC508 TC511 TC513 20 CD CD11 16V470U 20 8 123 5 2 TC503 TC504 21 CD CD11 50V47U 20 6 12 2 5 2 TC502 TC512 22 CD CD11 10V1000U 20 8 16 3 5 4 TC505 TC506 TC509 TC510 22 1 CD CD11 10...

Page 50: ...D 11 15 25 AB009K 2 U501 U504 FOR HEAT RADIATION 51 1 RADIATOR BOARD 11 15 25 WHITE AB905 2 U501 U504 FOR HEAT RADIATION 52 GROUND CHIP OF THE POWER BOARD AB903 2 G501 G502 53 TAPPING SCREW BT 3 8 BLA...

Page 51: ...PT2399 DIP 1 U603 25 PCB 6923 1 1 26 RAFT CORDS 6P120 2 5 2 PLUG WITH NEEDLES SAME DIRECTION 1 xs601 27 MIC SOCKET CK3 6 35 106 2 MIC601 MIC602 28 CONNECTION CORDS 0 6 SHAPED 7 5mm 2 J602 J601 29 GROU...

Page 52: ...D403 11 IC D16312GB QFP 1 U401 11 1 IC PT6312LQ QFP 1 U401 12 VFD HNV 05SS32 1 U402 13 LIGHT TOUCH RESTORE SWITCH VERTICAL 6 6 1 9 K401 K409 14 PCB 4921 0 1 15 CONNECTION CORDS 0 6 SHAPED 10mm 6 JP401...

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