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SCD-XB780
SERVICE MANUAL
Ver 1.0 2002.04
AEP Model UK Model
Model Name Using Similar Mechanism CD Mechanism Type Base Unit Name Optical Pick-up Name
NEW CDM66B-DVBU6B DVBU-6B KHM-234AMA
SPECIFICATIONS
When a super audio CD is played
Playing frequency range 2 Hz to 100 kHz Frequency response Dynamic range 2 Hz to 50 kHz (3 dB) 104 dB or more
Output connector Jack type Output level
ANALOG OUT Phono jacks 2 Vrms (at 50 kilohms)
General Load impedance
Over 10 kilohms Light emitting wave length: 660 nm 75 ohms Laser Semiconductor laser (Super Audio CD: = 650 nm) (CD: = 780 nm) Emission duration: continuous
Total harmonic distortion rate 0.0018 % or less Wow and flutter Value of measurable limit (±0.001 % W. PEAK) or less
18 dBm DIGITAL (CD) Square optical OUT output OPTICAL* connector 0.5 Vp-p DIGITAL (CD) Coaxial output OUT connector COAXIAL* PHONES Stereo 10 mW phone jack
(
)
Laser radiant power: 5.47 uW at 650 nm *These output is the value measured at a distance of about 200mm from the objective lens surface on the optical pick-up. Power requirements Power consumption Dimensions (w/h/d) 230 V AC, 50/60 Hz 25 W 430 × 111 × 283 mm incl. projecting parts 5.8 kg
When a CD is played
Frequency response Dynamic range 2 Hz to 20 kHz 99 dB or more
32 ohms Mass (approx.)
Total harmonic distortion rate 0.002 % or less Wow and flutter Value of measurable limit (±0.001 % W. PEAK) or less
*Output only the audio signals of the CD
Supplied accessories
· Audio connecting cord Stereo cable (1) · Remote commander RM-SX700 (1) · R06 (size-AA) batteries (2)
Design and specifications are subject to change without notice.
SUPER AUDIO CD PLAYER
9-873-930-01
2002D0500-1 C 2002.04
Sony Corporation
Home Audio Company Published by Sony Engineering Corporation
SCD-XB780
TABLE OF CONTENTS 1. 2. 3.
3-1. 3-2. 3-3. 3-4. 3-5. 3-6.
SERVICING NOTES ............................................... 3 GENERAL ................................................................... 6 DISASSEMBLY
Disassembly Flow ........................................................... Case ................................................................................. Front Panel Section ......................................................... AUDIO Board, MAIN Board .......................................... Mechanism Deck (CDM66B-DVBU6B) ....................... Base Unit (DVBU-6B) .................................................... 8 9 9 10 10 11
Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering.
4. 5.
5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9. 5-10. 5-11. 5-12. 5-13. 5-14. 5-15. 5-16. 5-17. 5-18. 5-19. 5-20. 5-21. 5-22. 5-23.
TEST MODE .............................................................. 12 DIAGRAMS
Block Diagram RF/SERVO Section ........................ Block Diagram SERVO Section .............................. Block Diagram MAIN Section ................................ Block Diagram AUDIO Section .............................. Block Diagram DISPLAY/KEY CONTROL/ POWER SUPPLY Section ........................................... Notes for Printed Wiring Boards and Schematic Diagrams ....................................................... Schematic Diagram RF Board ................................. Printed Wiring Boards RF/LOADING Boards .............................................. Printed Wiring Board MAIN Board (Component Side) .............................. Printed Wiring Board MAIN Board (Conductor Side) ................................ Schematic Diagram MAIN (1/5)/ LOADING Boards ............................. Schematic Diagram MAIN Board (2/5) .................. Schematic Diagram MAIN Board (3/5) .................. Schematic Diagram MAIN Board (4/5) .................. Schematic Diagram MAIN Board (5/5) .................. Schematic Diagram AUDIO/HP Boards ................. Printed Wiring Board AUDIO Board (Component Side) ............................ Printed Wiring Boards AUDIO (Conductor Side)/HP Boards ..................... Printed Wiring Boards DISPLAY/KEY Boards ...... Schematic Diagram DISPLAY/KEY Boards .......... Printed Wiring Boards POWER/POWER SW/PT Boards ............................ Schematic Diagram POWER/POWER SW/PT Boards ............................ IC Pin Function Description ........................................... 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 49
CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product. This label is located on the rear exterior.
The following caution label is located inside the unit.
6.
6-1. 6-2. 6-3. 6-4. 6-5.
EXPLODED VIEWS
Case Section .................................................................... Front Panel Section ......................................................... Chassis Section ............................................................... Mechanism Deck Section (CDM66B-DVBU6B) .......... Base Unit Section (DVBU-6B) ....................................... 61 62 63 64 65
7.
ELECTRICAL PARTS LIST ............................... 66
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
SCD-XB780 SECTION 1 SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. CLEANING OF OPTICAL PICK-UP LENS In cleaning the lens of optical pick-up, use the air blower. Never use a cotton swab for cleaning the lens of optical pick-up, which otherwise causes a trouble.
HOW TO OPEN THE TRAY WHEN POWER SWITCH TURNS OFF
tray
A
cam (66)
1 Insert a tapering driver (3 mm in diameter) in the hole at the bottom of the unit, turn the cam (66) fully in the direction of arrow A.
tapering driver
3
SCD-XB780
DISPLAY BOARD SERVICE POSITION In checking the DISPLAY board, prepare jig (extension cable J-2501-200-A : 1.00 mm Pitch, 11 cores, Length 300 mm.)
MAIN board
CN706
DISPLAY board CN801
Connect jig (extension cable J-2501-200-A) to the DISPLAY board (CN801) and MAIN board (CN706).
Note: Follow the assembly procedure in the numerical order given.
INSTALLATION OF THE TRANS BOARD
Note : Solder the TRANS board after installing power transformers (T901, T902) to the chassis. (To prevent the TRANS board from being cracked.)
5 Solder seventeen portions.
3 four screws (PTTWH3 × 6)
4
3 four screws (PTTWH3 × 6)
2 power transformer (T902) 1 power transformer (T901)
4
SCD-XB780
RESETTING OPERATION AT POWER ON If the power is turned on with a disc loaded in the set, a sequence of operation as shown below will be performed. (The operation varies depending on the type of disc) Condition: continue mode (1) CD 1. Sled reverse move (sled in) 2. Disc detect 3. IC setting for CD 4. Servo error signal offset auto adjustment 5. Spindle kick for LD on 6. LD on 7. Focus search 8. Focus servo on 9. Spindle kick 10. Spindle servo on 11. E-F balance auto adjustment 12. Tracking & sled servo on 13. Focus bias auto adjustment 14. Focus servo gain auto adjustment 15. Tracking servo gain auto adjustment 16. Jump to lead-in area 17. Read TOC 18. Stop (2) SACD (single layer) 1. Sled reverse move (sled in) 2. Disc detect 3. IC setting for SACD 4. Servo error signal offset auto adjustment 5. Spindle kick for LD on 6. LD on 7. Focus search 8. Focus servo on 9. Spindle kick 10. Spindle servo on 11. E-F balance auto adjustment 12. Tracking & sled servo on 13. Focus bias auto adjustment 14. Focus servo gain auto adjustment 15. Tracking servo gain auto adjustment 16. Jump to lead-in area 17. Read TOC 18. Stop (3) SACD (dual layer) 1. Sled reverse move (sled in) 2. Disc detect 3. IC setting for SACD 4. Servo error signal offset auto adjustment 5. Spindle kick for LD on 6. LD on 7. Focus search 8. Focus servo on (layer 0) 9. Spindle kick 10. Spindle servo on 11. E-F balance auto adjustment (layer 0) 12. Tracking & sled servo on (layer 0) 13. Focus bias auto adjustment (layer 0) 14. Focus servo gain auto adjustment (layer 0) 15. Tracking servo gain auto adjustment (layer 0) 16. Jump to lead-in area 17. Read TOC 18. Focus jump (layer 0tlayer 1) 19. E-F balance auto adjustment (layer 1) 20. Tracking & sled servo on (layer 1) 21. Focus bias auto adjustment (layer 1) 22. Focus servo gain auto adjustment (layer 1) 23. Tracking servo gain auto adjustment (layer 1) 24. Focus Jump (layer 1tlayer 0) 25. Stop
5
SCD-XB780 SECTION 2 GENERAL
Front Panel Parts Descriptions
This section is extracted from instruction manual.
POWER
AMS
OPEN CLOSE
PHONES
PHONE LEVEL
TIME/TEXT SACD/CD
PUSH ENTER
MENU
MIN MAX
MULTI/2CH
6 A OPEN/CLOSE button Press to open the disc tray. 1 POWER switch Press to turn on the player. 2 TIME/TEXT button Each time you press the button, the playing time of the track, the total remaining time on the disc, or TEXT information appears in the display. 3 SACD/CD button Each time you press the button while playing back a hybrid disc, the layer to be played back switches between the HD (Super Audio CD) layer and the CD layer. 4 Disc tray Press A OPEN/CLOSE to open/close the disc tray. 5 Multi-channel indicator Turns on when you turn on the player, or when the Multi-channel Super Audio CD is loaded and select the Multi-channel playback area by pressing MULTI/ 2CH. 7 H button Press to start play. 8 X button Press to pause play. 9 x button Press to stop play. 0 l AMS L dial (AMS: Automatic Music Sensor) When you turn the l AMS L dial counterclockwise by one click, you go back to the preceding track; when you turn the l AMS L dial clockwise by one click, you go to the succeeding track. qa PHONES Connect the headphones. During playback of a Multi-channel Super Audio CD, the same signal that is output from the ANALOG 5.1CH FRONT L/R jacks is output from the PHONES jack.
qs PHONE LEVEL Adjust the headphones volume. qd MENU Press to enter the menu. Press to exit from the menu and return to the normal display. qf MULTI/2CH button Press to select the playback area when the 2 channel + Multi-channel Super Audio CD is loaded. qg Display window Shows various information. qh m/M buttons Press to locate a portion you want to play within a track.
Rear Panel Parts Descriptions
ANALOG
2CH OUT FRONT 5.1CH OUT SURR CENTER
DIGITAL(CD)
OUT COAXIAL OPTICAL
L L
R R
SUB WOOFER
1 ANALOG 2CH OUT L/R jacks Connect to an audio component (stereo/2 channel) using the audio connecting cord. 2 ANALOG 5.1CH OUT jacks Connect to an amplifier equipped with the 5.1CH input jacks (Multi-channel amplifier, AV amplifier, etc.) using the audio connecting cords. 3 DIGITAL (CD) OUT COAXIAL connector Connect to an audio component using the coaxial digital cable. 4 DIGITAL (CD) OUT OPTICAL connector Connect to an audio component using an optical digital cable.
Note
Only the audio signals of the CD can be output from the DIGITAL (CD) OUT connectors shown in 3 and 4. Those of the Super Audio CD cannot be output through DIGITAL (CD) OUT.
6
SCD-XB780
Remote Parts Descriptions
1 CONTINUE button Press to resume normal play from Shuffle Play or Programme Play. SHUFFLE button Press to select Shuffle Play. PROGRAM button Press to select Programme Play. 2 DISPLAY MODE button Press to turn off the information. 3 TIME/TEXT button Each time you press the button, the playing time of the track, the total remaining time on the disc, or TEXT information appears in the display. 4 Number buttons Press to enter the track numbers. 5 i10 button Press to locate a track numbered over 10. 6 REPEAT button Press repeatedly to play all tracks or only one track on the disc. 7 AyB button Press to select Repeat A-B Play. 8 H button Press to start play. X button Press to pause play. x button Press to stop play. 9 AMS ./> (AMS: Automatic Music Sensor) buttons Press to locate a specific track. 0 m/M buttons Press to locate a portion you want to play within a track. qa INDEX >/. buttons Press to locate a specific point marked with an index signal when you play a disc that has index signals.
PLAY MODE
qs SACD/CD button Each time you press the button while playing back a hybrid disc, the layer to be played back switches between the HD (Super Audio CD) layer and the CD layer. qd MULTI/2CH button Press to select the playback area when the 2 channel + Multi-channel Super Audio CD is loaded. qf ENTER button Press to decide the selection. qg CLEAR button Press to delete a programmed track number. qh LEVEL ADJ button Press to adjust the output level balance for the Multichannel management function. qj CHECK button Press to check the programmed order.
CONTINUE SHUFFLE PROGRAM DISPLAY/ MODE
SACD/CD
TIME/TEXT MULTI/2CH
1 4 7
>10
2 5 8
10/0
3 6 9
ENTER
REPEAT
CHECK
CLEAR LEVEL ADJ
A
B
AMS
INDEX
7
SCD-XB780 SECTION 3 DISASSEMBLY
· This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SET
3-2. CASE (Page 9)
3-3. FRONT PANEL SECTION (Page 9)
3-4. AUDIO BOARD, MAIN BOARD (Page 10)
3-5. MECHANISM DECK (CDM66B-DVBU6B) (Page 10)
3-6. BASE UNIT (DVBU-6B) (Page 11)
8
SCD-XB780
Note: Follow the disassembly procedure in the numerical order given.
3-2.
CASE
2 two flat head screws (TP) 3 case
1 two screws 2 two flat head screws (TP)
2 two flat head screws (TP)
3-3.
FRONT PANEL SECTION
6 two claws 4 connector (CN992) 7 front panel section 1 Pull out the tray. (Refer to page 3, HOW TO OPEN THE TRAY WHEN POWER SWITCH TURNS OFF.)
4 two connector (CN305, 905)
3 wire (flat type) (11 core) (CN706) 2 loading panel assy
6 two claws
5 six screws (BV/RING)
9
SCD-XB780
3-4.
AUDIO BOARD, MAIN BOARD
1 two wires (flat type) (19 core) (CN302, 303)
2 four connectors (CN301, 304, 305, 306)
8 wire (flat type) (11 core) (CN706) 8 wire (flat type) (30 core) (CN708) 9 connector (CN703) 0 screw (BVTT3 × 6) qa wiring stopper qs MAIN board
7 AUDIO board 4 screw (BVTT3 × 6) 5 two washers (DIA. 3.6) 0 three screws (BVTT3 × 6) 6 PC board holder 9 two connectors (CN704, 707) 3 five screws (BVT/RING)
3-5.
MECHANISM DECK (CDM66B-DVBU6B)
6 three screws (BVTT3 × 8)
7 mechanism deck (CDM66B-DVBU6B)
1 Pull out the tray. (Refer to page 3, HOW TO OPEN THE TRAY WHEN POWER SWITCH TURNS OFF.)
4 wire (flat type) (30 core) (CN708)
2 loading panel assy
3 Push the tray.
5 connector (CN151)
10
SCD-XB780
3-6.
BASE UNIT (DVBU-6B)
BOTTOM VIEW
cam (66)
2
base unit (DVBU-6B)
1 screw (DIA. 12), floating
3 base unit (DVBU-6B)
11
SCD-XB780 SECTION 4 TEST MODE
In this set, various checks are automatically performed by executing the commands in the test mode.
Note: This set makes adjustment every optical pick-up and stores its result in the EEPROM (IC903) on the MAIN board. Accordingly, if a combination of optical pick-up and EEPROM is changed, be sure to perform 4-3. SET CHECK. Also, perform 4-1. IC INTERFACE CHECK, 4-2. DISPLAY CHECK, and 4-6. WAVEFORMS CHECK.
Setting Method of Test Mode Turn the [POWER] button on while pressing the [l AMS L] dial and the [MENU] button. Release the [MENU] button and the [l AMS L] dial in this order when "DIAG MODE" is displayed on the fluorescent indicator tube. Releasing Method of Test Mode To release the test mode, turn the [POWER] switch off. Selection/Entry of Test Mode To select and enter the "DIAG MODE", operate as follows. 1. Rotate the [l AMS L] dial to select the menu, and press the [l AMS L] dial to enter. 2. The test is switched on or off alternately each time the [l AMS L] dial is pressed. 3. To return to the previous step, rotate the [l AMS L] dial to select the desired item, and press the [l AMS L] dial to enter.
Disc for Test Mode Various checks of this set require the following discs.
Model Type *1 Category Application MODEL SATD-S5 (J-2501-215-A) SL SATD-S4 (J-2501-184-A) Not specified DL PATD-012 (4-225-203-01) CD YEDS-18 (3-702-101-01) Not specified
Adjusted value check, 12 cm disc Operation check, Reference disc Optical waveform check 12 cm disc Operation check
Adjusted value check, 12 cm disc Reference disc Operation check, Optical waveform check Operation check
HYBRID 12 cm disc
*1 SL: Single Layer DL: Dual Layer Test Mode Command List The contents of test mode are as follows.
Note: Wrong operation in the test mode causes a trouble, thus requiring extreme care.
LINE command (0X): Use mainly for a manufacturing line.
No. 00 05 06 07 Name RFAmp Read DSP MON1 DSP MON2 DSP MON3 Description Each register set value of the IC001 (RF AMP) is displayed via RS-232C XUGF, XPCK, C2PO outputted from IC509 (CD DSP) MNT0, MNT1, MNT2, MNT3 outputted from IC509 (CD DSP) RFCK, XPCK, XROF, GTOP outputted from IC509 (CD DSP) Remarks Not used for the servicing Not used for the servicing Not used for the servicing Electrical measurement, CD CLV jitter measurement
STANDARD command (1X): Use when the servo is applied by manual operation.
No. 12 13 14 15 16 17 18 19 Name LD ON/OFF SPIN ON/OFF FSRV ON/OFF TSRV ON/OFF CLV ON/OFF SSRV ON/OFF ALL SRV ON ALL SRV OFF Description The laser diode is turned on or off The spindle motor is rotated with the regulated voltage The focus servo is turned on or off The tracking servo is turned on or off The spindle SLV servo is turned on or off Focus and tracking servos must be already turned on The sled servo is turned on or off Focus, tracking and spindle servos must be already turned on All servos are turned on All servos are turned off Stop command in the test mode Remarks On or off are switched alternately On or off are switched alternately On or off are switched alternately On or off are switched alternately On or off are switched alternately On or off are switched alternately
FOCUS command (2X): Focus related. (All servos must be already turned on (except command 21))
No. 21 22 23 24 25 27 Name FSRCH ON/OFF F-BIAS UP F-BIAS DOWN ADJ FCSBIAS FGAIN UP/DW FOCUS AGC Description The continuous vertical motion of the optical pick-up lens is turned on or off Increase focus bias Decrease focus bias The focus bias is adjusted automatically Both + and - directions are searched to search for best jitter point The focus servo gain is switched between normal and down The focus servo gain is adjusted automatically Normal or down are switched alternately Remarks Avoid a long-time use On or off are switched alternately Focus bias value Focus bias value
OFFSET (PI, FE, TE) command (3X): Adjusts the offset of PI, FE and TE signals.
No. 31 Name PI/FE OFSET Description Adjusts the offset of PI, FE and TE signals This adjustment must be executed after 61 DISC DETECT Remarks TE offset adjustment is executed for the CD only
12
SCD-XB780
TRACKING command (4X): Tracking servo related.
No. 41 44 45 Name TGAIN NM/UP ADJ TRK DSP TRACKING AGC Description The tracking servo gain is switched between normal and up The traverse AGC and E-F balance adjustment is performed The tracking servo gain is adjusted automatically Remarks Normal or up are switched alternately
SEARCH command (5X): Track search related. (Nos. 51 through 53 are not used for the servicing.)
No. 51 52 53 Name 1-TRCK JUMP FINE SEARCH M-TRCK MOVE Description One-track jump is performed Fine search is performed M-track movement is performed Remarks
DISC DETECT command (6X): Disc type check related.
No. Name Description Disc type check is executed Display after judgment DSKMOD CD: Judged as CD DSKMOD SL: Judged as SACD (SL) DSKMOD DL: Judged as SACD (DL) DSKMOD HYB: Judged as HYBRID Enter disc type Enter disc type Enter disc type CD setting SL setting DL setting Remarks
61
DISC DETECT
Refer to how to apply servo by manual operation (See page 14)
62 63 64 6F
CD SETTING SL SETTING DL SETTING Download
CD forced setting SL forced setting DL forced setting Not used for the servicing
LASER command (7X): Laser of optical pick-up related.
No. 7A 7B 7C Name ADDTIME CD ADDTIME HD FJUMP TEST Description Cumulative light emission time of the laser for CD is displayed (Initialized by 8D command) Cumulative light emission time of the laser for SACD is displayed (Initialized by 8D command) Not used for the servicing Remarks
TOOLS command (8X): Performs aging, reads adjusting parameters, etc.
No. 81 83 87 8A 8D Name VERSION TRAY AGING DISP ADJ DT FL CHECK SETUP MODE Description Firmware version is displayed Tray open-close aging is performed Automatic adjusting parameters are displayed via RS-232C Display of fluorescent indicator tube and keys are checked Set to factory shipping mode PLAY MODE, etc. are initialized Set when repair completed Refer to 4-5. SHIPPING MODE (See page 17) Remarks Example: Ver 1.00 Not used for the servicing Not used for the servicing
QA command (9X)
No. 91 92 93 94 95 9C 9D 9E Name FJUMP CHECK SET CHECK WATER MARK SET AGING FJMP CHK BU BU DENCHO PLAY&RFD ON RFD ON/OFF The set aging is performed Repeat by the specified number of times or until an error occurred The focus jump is checked (for jig) The S curve waveform, traverse waveform, and RF waveform can be checked successively SACD playback, RFD output SACD jitter measuring mode RFD output is turned on or off SACD jitter measuring mode Description The focus jump is checked The set is checked Remarks Not used for the servicing Refer to 4-3. SET CHECK (See page 15) Not used for the servicing Not used for the servicing Not used for the servicing Refer to 4-6.WAVEFORMS CHECK (See page 17) Not used for the servicing Not used for the servicing
IC command (AX)
No. A0 Name IC SELF CHK Description Each IC and its communication are checked Remarks Normal or up are switched alternately
13
SCD-XB780
How to Apply Servo by Manual Operation In analyzing failures of the set, the servo may be applied by manual operation. To apply servo in the test mode, use the following method. 1. After setting the test mode, rotate the [l AMS L] dial to select a command, and press the [l AMS L] dial to enter. 2. "61 DISC DETECT" (Disc type check)t"18 ALL SRV ON" (All servos on + auto adjustment) 3. If applying servo while checking the condition one by one, "61 DISC DETECT" (Disc type check)t"31 PI/FE OFSET" (Offset automatic adjustment)t"14 FSRV ON/OFF" (Focus servo on)t"16 CLV ON/OFF" (CLV servo on)t"44 ADJ TRK DSP " (E-F balance adjustment)t"15 TSRV ON/OFF" (Tracking servo on)t"17 SSRV ON/OFF" (Sled servo on)t"24 ADJ FCSBIAS" (Focus bias adjustment)t"27 FOCUS AGC" (Focus auto gain adjustment)t"45 TRACKING AGC" (Tracking auto gain adjustment).
Note: 1. On and off are alternately switched in the same command. l AMSL] 2. For a stop, select "19 ALL SRV OFF" and press the [ dial.
Error display EEPROM ERROR SAMBA DRAM ERR (DSD decoder is also checked)
Causes (typical example) 1. IC903 (EEPROM) is faulty 1. IC808 (D-RAM) is faulty 2. IC801 (DSD decoder) is faulty 3. 768fs (33.8688 MHz) is not present to IC801 pin qa (MCKI) Same as cause 3 of DVD DEC. ERROR 4. IC801 pin 9 (XRST) does not go "H" · IC901 pin ts (XDIS IO) does not go "H" · IC904 (PLD) is faulty 5. Faulty communication line between IC801 and IC808 · Data line, address line, WE, etc. 6. D904 (1SS367) is faulty D+3.3V is not present to IC808 1. IC001 (RF AMP) is faulty 2. Loose connection between CN708 on MAIN board and CN005 on RF board, or FFC disconnection CN708 pin qj (CLK RF), pin qh (DATA RF) and pin qg (SDEN) must be checked 1. IC701 SD bus and IC801 AV decoder interface is faulty 2. IC812 to 814 are faulty
RF AMP ERROR
SD BUS ERROR
4-1. IC INTERFACE CHECK The communication between microcomputer and main ICs is checked. Checking Method: 1. After setting the test mode, rotate the [l AMS L ] dial to select "A0. IC SELF CHECK" and press the [l AMS L] dial to enter. 2. A checking will start automatically. (Checking time is about 3 seconds) 3. At successful completion of check, "IC CHECK OK" is displayed. In this case, no error exists in the IC interface.
Note: The check mentioned above tests the communication from microcomputer to main ICs. Even if the check successfully finished, the IC to be checked is not always normal. Consider it for reference only.
Causes Common to Each IC: 1. Faulty communication line between microcomputer and each IC. Disconnected patterns, floating series resistors, bridge, etc. 2. Faulty IC supply voltage. Particularly, check D+3.3V voltage. 3. Faulty microcomputer communication port to each IC
Note: In case of more than two errors, the error display is switched over one after another, thus making the reading difficult. In such a case, press again the [ l AMS L ] dial to make a recheck for error reading.
4. In case of an IC communication error, the following display will be given during the checking. Possible causes of error are as listed below.
Error display DVD DEC. ERROR Causes (typical example) 1. IC701 (SACD decoder) is faulty 2. IC701 pin
DVD DRAM ERR
4-2. DISPLAY CHECK Checking Method: 1. After setting the test mode, rotate the [l AMS L ] dial to select "8A. FL CHECK" and press the [l AMS L] dial to enter. 2. Respective segments of fluorescent indicator tube will automatically light up in order, and therefore check that there is no chipped character. 3. The "INPUT REMOCON" will be displayed after the segment check finished successfully, and then press a proper key on the remote commander. 4. After "JOG CHECK" is displayed, the numbers of calendar will be displayed from 1 to 15 each time the [l AMS L] dial is rotated clockwise. 5. After display up to 15, the numbers of calendar will disappear in order each time the [ l AMS L ] dial is rotated counterclockwise. 6. "TTX-1514?" will be displayed when all are cleared, and then press the [ l AMS L ] dial. 7. Upon display of "KEY CHECK", if a key on the display is pressed, the corresponding segment of fluorescent indicator tube will light up. 8. "FL TEST END" will be displayed if all keys are pressed. Note: The keys include the [ l AMS L ] dial. If the segment that
corresponds to the pressed key does not light up, that key is faulty.
CD DSP ERROR
9. The test mode selection display will be back, if the [lAMS L] dial is pressed.
14
SCD-XB780
4-3. SET CHECK (AUTOMATIC VARIOUS MEASUREMENTS) The operational stability of the set is checked. The check and OK/NG judgment are performed automatically.
Note: In the set check using the CD, besides a checking, the MIRR time used for the disc check is measured every optical pick-up, and from the measured result, the threshold value is calculated and it is stored in the EEPROM (IC903) on the MAIN board. Accordingly, if a combination of optical pickup and EEPROM is changed (for example, the optical pick-up or MAIN board is replaced), be sure to perform the set check using the following CD. As the data stored in the EEPROM are overwritten every set check, retry if failed. For the set check using the SACD, only checking is made.
Set Check
92. SET CHECK AUTO CHECK SP?
The set check is executed to judge OK or NG. (For the CD, the threshold value is stored in the EEPROM) The set check of measurement only is executed. The measured result is displayed via RS-232C. The measured result is displayed on the fluorescent indicator tube. The set check is finished.
AUTO CHECK?
DISP RESULT S?
DISP RESULT F?
CHECH END?
CD and SACD (SL) Disc Operation Check Checking method: 1. After setting the test mode, rotate the [ l AMS L ] dial to select "SET CHECK" and press the [ l AMS L ] dial to enter. 2. Upon display of "AUTO CHECK SP?", further press the [ l AMS L ] dial. 3. The tray will open automatically, and then set the test disc*1 of CD or SACD. 4. With the "DISC IN&JOG ON" displayed, press the [ l AMS L ] dial, and the check will be executed automatically. 5. "SPEC OK!" will be displayed if the measured result is within the specification. Faulty item name and the measured result will be displayed if any measured item is NG. 6. After that, "AUTO CHECK SP?" will be again displayed, and then rotate the [l AMS L] dial to select "CHECK END?". Further, press the [l AMS L] dial, and the test mode selection display will be back, and then press the [OPEN/CLOSE A] button and take the test disc out. *1 Use PATD-012 or YEDS-18 for CD, and SATD-S5 or SATD-S4 for SACD (SL). Using another disc will result in a checking failure. Measured Items:
Items RF/VC/FE/TE (ORG) Description Offset values before RF (PI), VC, FE, TE signal offset adjustment RF (8 bit data in hex notation) VC, FE, TE (9 bit data in hex notation) Offset values after RF (PI), VC, FE, TE signal offset adjustment (Less than ORG value if offset correction is normal) RF (8 bit data in hex notation) VC, FE, TE (9 bit data in hex notation) PI (ORG): PI value at disc type check (decimal data) PI (ADJ): PI value after PI offset adjustment (read value at microcomputer A/D) (decimal data) TRVS PP (ORG): Traverse level before level correction (AGC) (decimal data) TRVS PP (ADJ):Traverse level after level correction (AGC) (decimal data) PIOR: Set value of PI offset coarse adjusting register CCR: Set value of FE offset coarse adjusting register TRCR: Set value of TE offset coarse adjusting register Auto gain adjusted values of focus and tracking servos (8 bit data in hex notation) FBIAS: Focus bias set value (9 bit data in hex notation) TRVSC: Traverse center value (9 bit data in hex notation) TRCR2: Set value of E-F balance coarse adjusting register CFR: Set value of traverse level adjusting register TRCR2 adjusts the E-F gain balance and used for CD only (Fixed to 06 for SACD) TRCR2 and CFR are registers in RF amplifier SACD only Average seek time from first track to last track of disc Error rate measurement For CD: Average value/Maximum value of C1 and C2 For SACD: Average value/Maximum value of PO, PI1 and PI2 For the CD, Measure for 7 sec at track No.5 For the SACD, calculation from 100block data at track No.5 Remarks At offset 0 RF: A0h VC, FE, TE: 00h VC offset is not adjusted (Measurement only) Also, for SACD, the TE offset is not measured and adjusted PI level conversion Read value × 12.9mV Traverse level conversion Read value × 12.9mV 12.9mV=3.3V ÷ 256 (8 bit) Registers in RF amplifier
RF/VC/FE/TE (ADJ)
PI/TRVS PP (ORG/ADJ)
PIOR/CCR/TRCR FOCUS/TRK GAIN
FBIAS/TRVSC/TRCR2/CFR
PSP AMPLITUDE 1-LAST TRK SEEK (msec) ERROR RATE
15
SCD-XB780
Specified Value: Specified value used for OK/NG judgment when executing 92. SET CHECKtAUTO CHECK SP?
Measured Items RF AVRG (ADJ) VC AVRG (ADJ) FE AVRG (ADJ) TE AVRG (ADJ) TRVS PP (ADJ) FCS GAIN TRK GAIN ERROR RATE (1) CD (2) SACD PSP AMPLITUDE (SACD only) 1-LAST TRK SEK C1 C2 PI1 NUM PI1 FRAME (1) CD (2) SACD Specified value 8Ch to ABh 1F7h to09h 1EEh to 12h 1F1h to 0Fh 1E2h to 1Eh 45h to 73h 10h to 60h 10h to 60h 20 or less 0 100 or less 5 or less 1000 to 4000 3500 or less
Note: The specified values attached with "h" are hexadecimal numbers, and others are decimal numbers. RF, VC, FE, and TE measured values are hexadecimal data with positive and negative signs. When comparing the measured value with the specified value, refer to the following.
Hexadecimal (hex) display 9 bit data MAX FF FE 011111111 (+255) 011111110 (+254) (+) Side
Hexadecimal (hex) display 8 bit data 7F 7E 01111111 (+127) 01111110 (+126)
02 01 00 1FF 000000001 (+1) 000000000 (0) 111111111 (-1) (-) Side 0 01 00 FF FE
00000010 (+2) 00000001 (+1) 00000000 (0) 11111111 (-1) 11111110 (-2)
101 100
100000001 (-255) 100000000 (-256) MIN
81 80
10000001 (-127) 10000000 (-128)
16
SCD-XB780
4-4. SACD (DL) DISC OPERATION CHECK (· Perform as necessary) This checking performs the focus jump using a DL disc, which is a dual-layer HD disc, to verify the stability of the set. A set of layer 0 most-outside track access (only once)tone-second tracetfocus jump (layer 0t1)tone-second tracetfocus jump (layer 1t0) are repeated 5 times. Checking Method: 1. After setting the test mode, rotate the [ l AMS L ] dial to select "91 FJUMP CHECK" and press the [l AMS L] dial to enter. 2. The tray will open automatically, and then set the DL disc. 3. With "DISC IN&JOG ON" displayed, press the [l AMSL] dial. 4. The tray will be loaded in automatically, and then the test will start. 5. During the test, "NOW TESTiiii" is displayed. 6. Upon successful completion of the check, "OK!" will be displayed and the tray will open automatically. (In case of NG, "NG! ERR FJ-UP" or "NG! ERR FJ-DWN" is displayed) 7. Take the DL disc out and press the [OPEN/CLOSE A] button, and the test mode selection display will be back 4-5. SHIPPING MODE The repaired set must be initialized, and for this purpose the set should be set to the shipping mode. Setting Method: 1. After setting the test mode, rotate the [ l AMS L ] dial to select "8D SETUP MODE" and press the [l AMS L] dial to enter. 2. "INITIAL OK" is displayed and the test mode selection display will be back immediately. "8D 000000000 00" will be displayed, and if the scroll starts in the left direction, the set initialization has completed 3. Press the [POWER] button to turn the power off. The following setups are established in the shipping mode 1. Initialization of EEPROM (IC903) · PLAY MODE CONTINUE · LAYER SELECT SACD · M/2CH SELECT MULTI · 2ch SPK MODE 2ch DIRECT · Mch SPK MODE Mch DIRECT · Resetting the cumulative light emission time of the laser
Note: Even if the shipment mode setting mentioned above is made, the disc check threshold value attained in the 3. SET CHECK is not cleared.
4-6. WAVEFORMS CHECK BU Electrical Adjustment Mode The BU electrical adjustment mode is used to check the S curve waveform, traverse waveform, RF waveform, and CLV jitter. After a disc is placed on the tray, each time the [l AMS L ] dial is pressed, the check mode is switched in order for S curve waveformt traverse waveformtRF waveformtCLV jitter (for the CD). S Curve Check Connection:
oscilloscope MAIN board TP506 (FE) TP504 (AVC) +
Checking Method: 1. After setting the test mode, rotate the [ l AMS L ] dial to select "9C. BU DENCHO" and press the [OPEN/CLOSE A ] button. Place the test disc (PATD-012 or YEDS-18 or SATDS5 or SATD-S4) on the tray and close the tray, then press the [ l AMS L ] dial. 2. At the completion of disc type check, "CD DETECT" will be displayed (for PATD-012 or YEDS-18).
Note: For the SATD-S5 or SATD-S4, "SL DETECT" is displayed. 3. Press again the [lAMS L] dial, and the S curve waveform
check mode will become active and "S-CURVE MODE" will be displayed. 4. Connect an oscilloscope to the TP506 (FE) and TP504 (AVC) on the MAIN board. 5. Check that the level A and B of waveform on the oscilloscope satisfy the specification. Specified Value:
Disc SATD-S5 or SATD-S4 PATD-012 or YEDS-18 0.7 to 1.7 Vp-p 0.1 to +0.1V A B
S curve waveform
A B
VC
2. The optical pick-up moves to the home position (most-inside track) Error List
Display Toc Error * Description Error during the time from auto adjustment to TOC reading, Different type of disc (Such as a DVD disc), Disc is dirty
Note: For easier observation of this waveform, extend the sweep time and raise the brightness.
Checking and Connecting Location : See page 19.
Toc Error **** Illegal SACD (Such as a pirated version)
17
SCD-XB780
Traverse Check Connection:
oscilloscope MAIN board TP513 (TE) TP504 (AVC) +
RF Level Check Connection:
oscilloscope MAIN board TP703 (RFAC) TP704 (AGND) +
Checking Method: 1. Under the condition of S curve waveform check mode in step 5, press the [ l AMS L ] dial. 2. After "WAIT" is displayed, the traverse waveform check mode will become active and "TRV MODE ON" will be displayed. 3. Connect an oscilloscope to the TP513 (TE) and TP504 (AVC) on the MAIN board. 4. Check that the level A and B of waveform on the oscilloscope satisfy the specification. Specified Value:
Disc SATD-S5 or SATD-S4 PATD-012 or YEDS-18 0.9 to 1.4 Vp-p 0.1 to +0.1V A B
Traverse waveform Center fo the waveform
A B
VC
Checking and Connecting Location : See page 19.
Checking Method: 1. Under the condition of traverse waveform check mode in step 4, press the [ l AMS L ] dial. 2. Connect an oscilloscope to the TP703 (RFAC) and TP704 (AGND) on the MAIN board. 3. After "WAIT" is displayed, the RF waveform check mode will become active and "PLAY 5th TRACK" (for the SACD, "RF MODE ON") will be displayed, and the 5th music on the disc will be played. 4. Check that the RF waveform is clear and the level satisfies the specification. 5. Press the [ l AMS L ] dial (for the SACD, "RF JITTER (5th)" will be displayed, and further press the AMS dial), and "OUTSIDE TRACK" will be displayed and the outward track of the disc will be played. 6. Check that the RF waveform is clear and the level satisfies the specification. 7. Press the [ l AMS L ] dial, and "INSIDE TRACK" will be displayed and the inward track of the disc will be played. 8. Check that the RF waveform is clear and the level satisfies the specification. 9. After checking, press the [l AMS L] dial, and the test is over when "BU MEASURE" is displayed. 10. Press the [OPEN/CLOSE A ] button to open the tray, and remove the test disc. 11. Using each type of disc, repeat from step 1 of S curve waveform check up to step 10 of RF level check. 12. When the check is over, press the [POWER] button to turn the power off.
Note: Take care not to leave the test disc in the set.
Specified Value:
Disc SATD-S5 or SATD-S4 PATD-012 or YEDS-18 0.9 to 1.4 Vp-p A
RF signal waveform VOLT/DIV: 200 mV TIME/DIV: 500 ns
A
Note: Clear RF waveform refers to the waveform where shapes should be distinctively observed in the center.
Checking and Connecting Location : See page 19.
18
SCD-XB780
CLV Jitter Check (CD only) Connection:
oscilloscope MAIN board TP516 (RFCK) TP517(WFCK) TP808 (DG) (CH1) (CH2) + +
Checking Method: Under the condition of RF level check mode in step 3, connect the oscilloscope to the TP516 (RFCK) (CH1), TP517 (WFCK) (CH2), and the TP808 (DG) (GND) on the MAIN board to check that the value A of the waveform satisfies the specification.
Note: Take care not to leave the test disc in the set.
Specified Value:
Disc PATD-012 or YEDS-18 A 35 µsec or less
CLV jitter waveform
A
Checking and Connecting Location: MAIN Board (Component Side)
TP506 (FE) TP513 (TE) TP704 TP504 (AGND) TP703 (AVC) (RFAC) TP514 (RFCK) IC509 TP517 (WFCK) IC701 IC703 TP808 (DG)
IC801
19
19
SCD-XB780 SECTION 5 DIAGRAMS
5-1. BLOCK DIAGRAM RF/SERVO Section
RF
1 63
DVDRFP RFSIN MUX
ATON 61 ATT ATOP 62
59 60
AIP AIN
INPUT BIAS, AGC
PROGRAMMABLE EQ FILTER DIFFERENTIATOR
FNP FNN
53 52
54 55
DIP DIN
RFAC
57
RFAC
2
(Page 21)
FULL WAVE RECTIFER AGCO AGC CHARGE PUMP DETECTOR A B C D
D C B A
· SIGNAL PATH : SACD PLAY : CD PLAY
+ A2 3 B2 4 C2 5 D2 6 18 17 G H SUMMING AMP IC004 (2/4) A B C VC (+2.5V) D A B C D 12 11 10 9 CD E CD F A B C D MUX GCA L. P. F. GCA
CLAMP& ENVELOPE LEVEL DAC
+
SEL
GCA, EQ
COMPARATOR VC + A
PHASE DETECTOR
MUX
L. P. F.
SUB
OFFSET CANCEL
GCA
TE
39 SDATA SCLK SDEN
TE
TE, FE, PI
3 4
(Page 22)
E F
SUMMING AMP IC004 (1/4)
+ C + B + D +
SDATA 47 SERIAL SCLK 46 PORT SDEN REGISTER 48 MNTR 42 GCA + + + L. P. F. OFFSET CANCEL OFFSET CANCEL GCA FE 40
SDATA, SCLK, SDEN
(Page 22)
FE AVC (+1.65V) AVC BUFFER IC004 (4/4) A+3.3V
L. P. F.
PI
38
OPTICAL PICK-UP BLOCK (KHM-234AMA)
CD A 16 CD B 15 CD C 14 CD D 13
PI ERROR AMP IC004 (3/4)
FE TE PI
PI
WAVRB
WAVRB BUFFER IC503 (1/2)
D+5V
MUX SACD/CD RF AMP, FOCUS/TRACKING ERROR AMP IC001 AGCO BOTTOM ENVELOPE INPUT BUFFER
MEVO
32
DRVC (+2.5V) MIN 31
DRVC BUFFER IC503 (2/2)
D+5V
DVD LD
AUTOMATIC POWER CONTROL (FOR SACD) Q001 AUTOMATIC POWER CONTROL (FOR CD) Q003
21
DVDLD
CD LD DVD/CD PD MODULE CIRCUIT DVD VR
22
CDLD DVDPD
DUAL APC
PEAK/ MIRR 27 BOTTOM HOLD LDON 26 LDON
5
(Page 21)
23 CDPD 24 PHOTO DIODE CONTROL SWITCH (FOR SACD) Q005
DVDPDSW
CDPDSW
DVDPDSW, CDPDSW TRKSW
TE FE PI
6 7
(Page 22) (Page 22)
CD VR PHOTO DIODE CONTROL SWITCH (FOR CD) Q004
FOCUS/TRACKING COIL DRIVE, SLED MOTOR DRIVE IC502 12 11 FOCUS COIL DRIVE STBY1 5 6
TRACKING COIL DRIVE CONTROL SWITCH IC501
4
4
40 41 39 43 TRACKING COIL DRIVE CONTROL SWITCH IC505 2 DIGITAL SERVO PROCESSOR IC509 (1/2) FFDR 33 FRDR 34
FOCUS/TRACKING/SLED PWM GENERATOR F JMP2 F JMP1 SE TE FE RFDC
1
2
1
FCS+ FCS 2AXIS DEVICE FOCUS/ TRACKING COIL
A/D CONVERTER FOK, MIRR, COUT, SCLK
9 2 3 24 23 20 27 26 SPINDLE/LOADING MOTOR DRIVE IC512 MUTE 2D
TRK+ TRK
14 13 M2 (SLED)
TRACKING COIL DRIVE SLED MOTOR DRIVE STBY2
TFDR 31 TRDR 32 SFDR 29 SRDR 30
FOCUS TRACKING/SLED SERVO DSP
DFCT, FOK DETECTOR
FOK 22 MIRR 20 DFCT 21 COUT 19 SCLK 8
FOK MIRR
8
(Page 22)
M
17 18
SERVO INTERFACE SERVO AUTO SEQUENCER
SSTP
COUT SCLK
(Page 21)
1
SP ERR
25
SPINDLE MOTOR DRIVE
TO CPU INTERFACE LIM SW
26 SPDA S1 (LIMIT) D+3.3V SP ON MUTE LOAD MUTE 2D, SP ON, MUTE LOAD LOAD OUT LOAD IN LOAD IN/OUT SPDA, F JMP1/2 SPIN
9 10 11 12 13
(Page 22)
M3 (SPINDLE)
M
8 9
SPINDLE MOTOR DRIVE
15
16
BUFFER MUTE2 MUTE1
17
(Page 21) (Page 21) (Page 22) (Page 22)
13 2 21 22
M151 (LOADING)
M
6 5
LOADING MOTOR DRIVE
24
23
BUFFER
20
20
SCD-XB780
5-2. BLOCK DIAGRAM SERVO Section
RFAC D+3.3V FILTER 16 DIGITAL SIGNAL PROCESSOR IC509 (2/2) 53 55 52 54 12
PCO CLTV FILI XPCK FILO C4M
17
(Page 22)
69
XTSL
CLOCK GENERATOR
XTAO 72 XTAI 71 PCMD 66 BCK 67 LRCK 65 C2PO 14 WDCK 17 MDAT BCLK LRCK
768FS (33.8688MHz)
18
(Page 22)
INTERNAL BUS
2
RFAC
50
RFAC
ASYMMETRY CORRECTOR
DIGITAL PLL
EFM DEMODULATOR
MDAT, BCLK, LRCK
19
(Page 23)
(Page 20)
ASYI 49 ASYO 48
32K RAM ERROR CORRECTOR
D/A DIGITAL INTERFACE
OPTICAL TRANSCEIVER IC309
DIGITAL (CD) OUT OPTICAL
TO SERVO AUTO SEQUENCER
SUBCODE PROCESSOR DIGITAL OUT DOUT 64 WAVE SHAPER Q302
J303 DIGITAL (CD) OUT COAXIAL
DIGITAL CLV PROCESSOR
LOCK MDP
CPU INTERFACE
WFCK RFCK GFS EMPH MUTE DATA CLOK XLAT SENS SCOR SBSO EXCK SQSO SQCK MD2
XRST 2
XRST CD
XRST DVD
XRST CD, MUTE CD, XRST DVD
20
(Page 22)
24 25
4 6 5 7 15 79 80 76 77
10 11 13 68
3
63 MUTE CD
CPU IC901 (1/3)
75
LOCK CD
34 35 36 9 26
DATA CD CLOK CD XLAT CD SENS CD SCOR CD
33 37
71
GFS CD
3
DOCTRL
XRD XWR XCS DVD INIT0 DVD SQSO CD INIT1 DVD SQCK CD
137 138 MDIN1
MDIN2
WFCK SCOR SBSO EXCK
SPINDLE MOTOR DRIVE IC708 (2/2)
151 150 148 147 153 146 155 163 158 160
SCOR SBIN EXCK XRCI GSCOR C2PO LRCK BCLK MDAT WFCK
164
XRST
SACD DECODER IC701
HDB0 HDB7
44, 41, 39, 35, 32, 30, 27, 24
SD0 SD7
FCS JMP1 FCS JMP2
SPDA APDO
100
59
7 8
43 44
64
58
85 84 12 22 23
A0 A7 89 96
D0 D7 14 21
ANALOG MIXER
MDSOUT 142 MDPOUT SPINDLE 144 CONRTOL CLVS 140 SPO SYNC CONTROL
GFS DVD
SP ERR
21
(Page 22) SDEF
JITTER
LD ON
CD DSP INTERFACE HDB8 DESCRAMBLE SUBCODE DEINTERLEAVE & ECC HDB9 HDBA HDBF
26 29
31, 34, 37, 40, 43, 45
22
(Page 22)
(Page 20)
XHRD XHWR XCS XINT0 XINT1
11
SPIN
BUFFER IC708 (1/2)
135
117
PLL
HOST INTERFACE
RFIN
DASYO
ASF1 ASF2 DASYI
59, 56, 60
RF ASSYMMETRY
FFM DEMODULATOR
DMA FIFO ATAPI REGISTER CD ESP ATAPI PACKET FIFO
HA0 HA2
5
(Page 20)
LDON
111 113 114 115 SP ERR
F JMP1 F JMP2 SPDA
MAIN DATA ECC & EDC DVD-ROM CD-ROM
XSAK REDY HINT HCS0 HCS1 XSHD XDCK XSRQ XHRS
1
(Page 20)
FILTER
172 176, 1, 2, 4 MDB8, MDB9, MDBA MDBF MDB0 MDB7
10
(Page 20)
SPDA, F JMP1/2 D0 D7
DMA CONTROLLER (PRIORITY RESOLVE & SEQUENCER)
MA0 MA9 MA10/MNT1 MA11/MNT2
DAC INTERFACE
XMWR XMOE
XCAS XRAS
(Page 22)
5, 7, 9 14
A0 A7
15
(Page 22)
A0
CPU INTERFACE, DMA CONTROLLER
66 69, 71, 73 75
96, 97, 99, 101, 102, 104 106
79, 80, 82 87, 89, 91
95 78 76 94
92 93
ADDRESS BUS
ADDRESS BUS
DDAT DBCK DLRC
14
D0 D7
DATA BUS
DATA BUS
XSAK 46 51 54 62 63 XSHD 49 XDCK 48 XSRQ 53 23
XSAK, XSHD, XDCK, XSRQ
23
(Page 22)
159 157 162
16
(Page 22)
XHRD, XHWR
I/O0 I/O7
I/O8 I/O15 D-RAM IC706
A0 A9
XINT1
XINT1 XWAIT
UCAS LCAS RAS WE OE
XHRD XHWR XCS XINT0
17 18 19 20 21 16
XRD XWR XCS XINT0
WPK 2 5, 7 10 41 44, 46 49 21 24, 27 32 34 35 18 17 33
24
(Page 22)
· SIGNAL PATH : SACD PLAY
107 GFS AUTHENTICATION
XTAL XTL2
: CD PLAY (ANALOG) : CD PLAY (DIGITAL OUT)
A+3.3V
167
169 170 XTAL
XTL1
DVC (+1.65V)
DVC BUFFER IC703 (2/2)
INTEGRATOR IC703 (1/2)
109 APEO
25
(Page 22)
21
21
SCD-XB780
5-3.
(Page 20) (Page 20) (Page 20)
BLOCK DIAGRAM MAIN Section
4 8 3
SDATA, SCLK, SDEN FOK, MIRR, COUT, SCLK TE, FE, PI 256FS DSD DECODER IC801
· SIGNAL PATH : SACD PLAY
26 27
(Page 23)
(Page 21)
17 24
REAC
126 WARFI
(Page 21)
WPK LEVEL SHIFT IC813 SDEF XASK, XSHD, XDCK, XSRQ A1 B1
123 WCK
DSAL DSAR DSALS DSARS DSAC DSASW
64 66 74 76 69 71
SDATAL SDATAR SDATALS SDATARS SDATAC SDATALF 64FS 128FS
SDATAL, SDATAR, SDATALS, SDATARS, SDATAC, SDATALF, 64FS SDEN
(Page 23)
PHREFI 61 BCKAI 59 18 168 SDEF
SDATA SCLK FOK MIRR COUT SCLK
83 DATA RF 77 CLK RF 74 25 29 72 FOK CD MIRR RF COUT CD SCLK CD
LOAD IN 45 LOAD OUT 46 IN SW 30 OUT SW 31
LOAD IN LOAD OUT
LOAD IN/OUT
13
(Page 20)
(Page 21)
22 23
2
(Page 21)
XSAK
3
A2
S152 (LOADING IN) S151 (LOADING OUT)
B2
17
167 XSAK
3-MULTIPLYING IC811 13 1 TE FE PI
XSHD
4
A3
B3
16
165 XSHD
XDCK
5
A4
B4
65 TE 67 FE 66 PI 64FS FS64 3 128FS FS128 4 X901 20MHz 40 XTAL 41 EXTAL CPU IC901 (2/3) EEPSIO 78 EEPSCL 79 5 SDA 6 SCL 35 SDEN YO 5
15
166 SDCK MCKI 11 12 11 2 3
XSRQ
LEVEL SHIFT IC814
164 XSRQ 10 9 4 5
12 16, 19 21
D0 D7
LEVEL SHIFT IC812
DATA BUS
D0 D7
14
(Page 21)
SD0 SD7
169 176
(Page 21)
21
11 18
29
SD0 SD7
A1 A8
B1 B8
8
6
EEPROM IC903 MSDATO MSDATI MSCK XMSLAT SMUTE MSREADY 6 4 3 2 10 7 48 49 50 47 51 27 98 97 SIN DSD SOUT DSD SCK DSD XLAT DSD MUTE DSD RDY DSD LATCH DF INIT DF
A 22 XHRD XHWR
A0
15 16 28 29 30 31
(Page 21)
D-RAM IC808
XRD 10 XWR 11 XRST 38 RESET SIGNAL GENERATOR IC905
XHRD, XHWR
(Page 21)
2, 3, 5, 6, 8, 9, 11, 12
DQ0 DQ7
DQ0 DQ7
139 136, 134 131
ZEROL 2 ZEROR 41 LMUTE 38 RMUTE 37 MULTI 34
ZEROL ZEROR LMUTE RMUTE
ZEROL, ZEROR
(Page 23)
LMUTE, RMUTE
XCS IO 11 XDIS IO 52
9 XCS 24 RST
(Page 23)
162 159, 157 154, 152, 151, 149, 148
21 24, 27 32, 20, 19
MULTI
(Page 23)
A0 A11
A0 A11
MUT 2D SP ON MUT LOAD
MUTE CD
RST DP 26 PROGRAMMABLE LOGIC DEVICE IC904
XRST DP
(Page 24)
CAS RAS WE CKE CLK
16 17 15 34 35
144 145 143 142 141
XCAS XRAS XWE DCKE DCLK
DATA CLK LATCH INIT
4 6 1
73
DATA, CLK, LATCH, INIT
32
(Page 23)
ZDFL 63 ZDFR 65 TEST1 115 XRST 9
42 ZDFL 43 ZDFR 36 ISBTEST 25 RST DSD DVDPDSW 33 CDPDSW 23
DVDPDSW CDPDSW
DVDPDSW, CDPDSW
6 7 9
(Page 20)
(Page 21) (Page 21) (Page 20) (Page 21)
25 18 12 20
MUTE 2D SP ON MUTE LOAD
XTAL 768FS (33.8688MHz) MUTE 2D, SP ON, MUTE LOAD XRST CD, MUTE CD, XRST DVD
TRKSW 1
TRKSW
(Page 20)
MUTE CD
LIM SW 44 XRST DVD XRST CD 31 RST DVD 32 RST CD
LIMSW
(Page 20)
22
22
SCD-XB780
5-4.
BLOCK DIAGRAM AUDIO Section
RV601 PHONE LEVEL HEADPHONE AMP IC308 (1/2) SDATAL, SDATR, SDATALS, SDATARS, SDATAC, SDATALF, 64FS MUTING Q403 SDATAL DSD1 38 DSD3 40 DSD2 39 DSD4 41 DSD5 42 DSD6 43 DSD7 44 DSD8 45 37 DBCK DSD INTERFACE DSD FILTER ENHANCED MULTI LEVEL DELTA-SIGMA MODULATOR D/A CONVERTER OUTPUT AMP & LOW-PASS FILTER VOUT5 31 VOUT6 30 PCM INTERFACE PCM FILTER VOUT7 29 VOUT8 28 ANALOG LOW-PASS FILTER IC306 (2/2) DIGITAL FILTER, D/A CONVERTER, LOW-PASS FILTER IC301 ZERO DETECT SYSTEM CLOCK FUNCTION CONTROL MUTING Q422 MUTING Q421 ANALOG 5.1CH OUT R-CH VOUT3 10 VOUT1 12 MIX AMP IC315 (2/2) ANALOG LOW-PASS FILTER IC305 (2/2) MUTING Q402 R-CH R-CH MUTING Q401 R-CH J302 L FRONT R-CH R J301 L ANALOG 2CH OUT R R-CH J601 PHONES
27
(Page 22)
SDATAR
SDATALS SDATARS SDATAC SDATALF 64FS
VOUT4 9 VOUT2 11
R-CH
MDAT, LRCK, BCLK
19
(Page 21)
MDAT LRCK BCLK
PDATA1 46 PDATA2 47 PLRCK 51 PBCK 50
L SURR R
ZERO1 ZERO2
PSCK DSCK
6 7
33 34
MDI MC MS XRST
2 4 3 36
ZEROL ZEROR
R-CH
28
(Page 22)
ZEROL, ZEROR
CLOCK BUFFER IC304 256FS 6 5 3 4
26
(Page 22)
1
2 CENTER ANALOG LOW-PASS FILTER IC307 MUTING Q442
X301 11.2896MHz
DATA CLK LATCH INIT
MUTING Q441
32
(Page 22)
DATA, CLK, LATCH, INIT
SUB WOOFER MUTING Q542
MUTING Q541 R-CH MUTING CONTROL SWITCH Q301 MUTING CONTROL SWITCH Q304 MUTING CONTROL SWITCH Q303
· R-ch is omitted due to same as L-ch. · SIGNAL PATH : SACD PLAY : CD PLAY (ANALOG)
29
(Page 22)
LMUTE, RMUTE
30
(Page 22)
MULTI
23
23
RMUTE
LMUTE
SCD-XB780
5-5.
BLOCK DIAGRAM DISPLAY/KEY CONTROL/POWER SUPPLY Section
S810 813
KEY0 60
S801 806 S830 ROTARY ENCODER +3.3V l AMS L KEY2 62 DAC+5V PUSH ENTER +3.3V REGULATOR IC302
D301
D302
RECT D905, 906
KEY1 61
+5V REGULATOR IC903 T902 POWER TRANSFORMER RECT D901, 902
A+7V REMOTE CONTROL RECEIVER IC802
+7V REGULATOR IC901
RM 82
A+UR
CPU IC901 (3/3)
A7V
7V REGULATOR IC902
RECT D903, 904
LED DRV 57
LED DRIVE Q701, 702
D803 (MULTI-CHANNEL)
AUR
T901 POWER TRANSFORMER FLUORESCENT INDICATOR TUBE DRIVER IC801 VFL33V FLUORESCENT INDICATOR TUBE DRIVER (IC801) D922 F1 33V REGULATOR Q921 R954 RECT D917 920
S1 S34 61 64, 1 30
F1 F2 SEGMENT DRIVE Q803 FL801 FLUORESCENT INDICATOR TUBE +2.5V +2.5V REGULATOR IC702 S991 +3.3V REGULATOR IC904 RECT D909 912 LINE FILTER L901 POWER
FLOUT 53 FLCLK 54 FLCS 56
55 FL. DATA (DI) 54 FL. CLK (CL) S35 31 53 FLT (CE)
3G 16G 45 32
D+3.3V A+3.3V D+5V A+5V
(AC IN)
C815, R801
OSC
50 OSC0 51 OSC1
GRID DRIVE Q801, 802
1G, 2G 46, 47
+5V REGULATOR IC906
FLRST
F2
M+12V (MOTOR DRIVE (IC512)) +5V REGULATOR IC504
+12V REGULATOR IC905
RECT D913 916
52 (Page 22)
31
XRST DP
+5V (COIL/MOTOR DRIVE (IC502))
24
24
SCD-XB780
5-6.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. f · : internal component. · 5 : fusible resistor. · C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. · A : B+ Line. · B : B Line. · Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : SACD PLAY ( ) : CD PLAY : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. J : SACD PLAY c : CD PLAY (ANALOG) I : CD PLAY (DIGITAL OUT)
· Circuit Boards Location
POWER board PT board RF board
Note on Printed Wiring Board: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. : Pattern from the side which enables seeing. · (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.
POWER SW board
AUDIO board
· Main board is multi-layer printed board. However, the patterns of intermediate-layer have not been included in diagram. · Indication of transistor
C Q B E These are omitted.
HP board
KEY board DISPLAY board
LOADING board
MAIN board
25
25
SCD-XB780
5-7.
SCHEMATIC DIAGRAM RF Board
· See page 42 for Waveforms.
· See page 45 for IC Block Diagram.
CN005 30P C036 0.1 C045 1000p AGND RFAC Q004 2SK3018 PHOTO DIODE CONTROL SWITCH (FOR CD) AGND
C018 22p C020 22p
SDEN
C017 22p
C021 22p C026 0.01 C031 0.1 C032 0.1 JL081
C039 0.1 C040 0.01
C041 0.01
R022 12k
AVC
DATA_RF CLK_RF TE FE FE/PI
AVC MIRR DVDPDSW CDPDSW MIRR DVDPDSW CDPDSW FE/PI PI TE FE A5V A5V
S
R024 0
CN003 25P CD_LD CD_LD CD_LDGND CD_VR DVD_CD_PD VMOD VMOD LD_GND DVD_LD DVD_LD R002 100 DVD_VR S DVD_LDGND TRK+ TRKFCSFCS+ A D D E E C C GND H H VC RF F F G G VCC C006 0.1 B B C004 0.1 TDTD+ FDFD+ R005 47k R008 2.2k Q005 2SK3018 PHOTO DIODE CONTROL SWITCH (FOR SACD) DVDPDSW A C008 2200p C016 180p SACD/CD RF AMP FOCUS/TRACKING ERROR AMP IC001 CXD1881AR B C D JL006 JL003 C010 2200p C009 2200p A C011 2200p R007 820 R001 0 R004 47k CDPDSW DVD_CD_PD C013 5600p C012 5600p R006 220 RFP
R025 0
R023 0
FE/PI PI TE FE
SDEN DATA_RF CLK_RF LDON
SDEN DATA_RF CLK_RF LDON A3V
(Page 30)
C048 0.047
R035 0
C052 0.1
C055 47 6.3V
FDFD+ TDTD+
FDFD+ TDTD+ SDSD+ SPSP+ D3V NC LIM_SW
C051 0.1
SDSD+ SPSP+ R044 8.2k D3V JL051 LIM_SW PI R029 47k R046 100 R036 10k R083 10k R082 10k
JL002 RFP JL001
C047 0.1
H
G CD_F
C042 0.033
C043 0.033
CD_F CD_E DVD_CD_PD
LDON MIRR
C044 330p
R084 10k C046 0.47
VCC C030 22 10V C027 0.1 C025 0.1 R021 10M VEE CN002 6P M3 (SPINDLE) SPM2 (SLED) S1 (LIMIT) SD+ SDLIM_SW D3V SP+ SP+ SPSD+ SDLIM_SW D3V Q001 2SB1121-ST-TD AUTOMATIC POWER CONTROL (FOR SACD) R093 33 R015 33 C023 100 6.3V C001 2200p R017 470 Q003 2SB1121-ST-TD AUTOMATIC POWER CONTROL (FOR CD) R020 470 R065 10k L001 47µH C022 1000p C007 10 C014 10 R003 33k D002 1SS352-TPH3 R090 0 C029 C037 10 1000p C090 1 C028 47 6.3V C003 0.1 C050 22 10V C095 0.1 C060 0.1 C064 0.1 C094 22 10V R066 10k
CD_E
IC004 NJM3403AV(TE2)
R019 33
R094 33
C038 100 6.3V
C002 2200p SUMMING AMP, R087 10k PI ERROR AMP, AVC BUFFER
R085 R086 10k 10k
R092 0
R097 33k
D001 1SS352-TPH3
C015 10
DVD_LD
CD_LD
VMOD
E
F
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
26
26
SCD-XB780
5-8.
PRINTED WIRING BOARDS RF/LOADING Boards
· See page 25 for Circuit Boards Location.
1
M3 (SPINDLE)
2
M2 S1 (SLED) (LIMIT)
3
OPTICAL PICK-UP BLOCK KHM-234AMA
4
5
6
7
8
RF BOARD
M
M
A
(COMPONENT SIDE)
A
E 32 33 17 16 E
B
MAIN BOARD CN780
(Page 28)
48 49 1
IC001
64
21 1-680-791(21)
C
RF BOARD (CONDUCTOR SIDE)
LOADING BOARD
CN151 5 S151 LOADING OUT
S152 LOADING IN
IC004
K
MAIN BOARD CN703 1
M
M151 (LOADING) 21 1-645-721(21)
(Page 28)
D S G D G S
D
21 1-680-791(21)
· Semiconductor Location
Ref. No. D001 D002 IC001 IC004 Q001 Q003 Q004 Q005 Location D-4 D-4 B-3 D-4 B-4 B-4 D-3 D-3
27
27
SCD-XB780
5-9.
· Semiconductor Location
Ref. No. IC501 IC503 IC505 IC509 IC701 IC703 IC801 IC814 IC901 Location F-3 H-4 F-3 C-3 C-6 A-7 D-9 D-8 G-6
PRINTED WIRING BOARD MAIN Board (Component Side) · See page 25 for Circuit Boards Location.
1
2
3
4
5
6
7
8
9
10
MAIN BOARD (COMPONENT SIDE) A
TP506 TP504 (FE) (AVC) TP704 (AGND) TP703 (RFAC)
IC703
B
TP513 (TE) 41
40
21 20 132 89 88
TP808 (DG) TP514 (RFCK)
133
IC509 C
60 61 80 1
132 133
89 88
TP517 (WFCK)
IC701 IC801
4
176 1 44
45
1 3
IC814
176 1 44
D
5
45
E
A
RF BOARD CN005 1 3 1 3
(Page 27)
F
5 4 5 4
IC501
25 26 1 100
IC505
IC901 G
50 51 75 76
IC503 H
1
I
5
K
LOADING BOARD CN151
(Page 27)
J
1-684-06611
E
28
POWER BOARD CN904
(Page 40)
AUDIO BOARD CN303
C
B
AUDIO BOARD CN304
DISPLAY BOARD CN801
F
D
AUDIO BOARD CN302
(Page 37)
(Page 37)
(Page 38)
(Page 37)
28
SCD-XB780
5-10. PRINTED WIRING BOARD MAIN Board (Conductor Side) · See page 25 for Circuit Boards Location.
1
2
3
4
5
6
7
8
9
10
· Semiconductor Location
Ref. No. D903 D904 Location A-4 A-3 F-9 G-9 H-10 E-3 B-5 B-6 C-3 E-5 E-4 D-4 G-4 G-6 H-9 J-6 J-7
MAIN BOARD (CONDUCTOR SIDE) A
1 50
B
IC708 IC706
C IC808
IC502 IC504 IC512 IC702 IC706 IC708 IC808 IC811 IC812 IC813 IC903 IC904 IC905 Q701 Q702
25
26
IC813
D
IC702 E
3 2 1
IC811 IC812
1 28
F
44 1 34 33 3 14
IC502
15 1
G
IC903
11 12
IC904
23 22
IC504
2
IC512
14 13 10
H IC905
20
5 1
25
I
E E
J
1-684-06611
29
29
SCD-XB780
5-11. SCHEMATIC DIAGRAM MAIN (1/5)/LOADING Boards
· See page 42 for Waveforms.
· See page 45 for IC Block Diagram.
(1/5)
A5V AGND A3V
(Page 34)
D5V DGND D3V DRVC AVC
C2PO
DVC
CL503 MNT2 CL504 MNT1 CL505 MNT0 WFCK
GSCOR
M12V MGND
(Page 34)
CL502 MNT3
DSP_BUS SPC970_BUS
MUTE_CD SCOR C517 10 10V
C501 1 R1026 10k R1027 68k
R530 220k
CL501 GND
XRST_CD
MIRR
COUT
SENS
LOCK
DFCT
SCLK
CLOK
CL1098
DATA
FOK
GFS
XLAT
C572 1
TP514 (RFCK) R568 10k
TP517 (WFCK)
C567 0.1
C568 10 10V
FL502
TP516
JL598
JL591
JL578
JL587
JL595
JL596
JL600
JL574
JL576
CL1062 AGND CL1063 RFAC AGND CL1064 AVC AVC CL1065 MIRR CL1066 DVDPDSW CL1067 CDPDSW CL1068 FE/PI PI CL1070 TE CL1071 FE CL1072 A5V A5V CL1073 SDEN CL1074 DATA_RF CL1075 CLK_RF CLK_RF LDON DATA_RF SDEN CL1069 CDPDSW C516 0.1 DVDPDSW MIRR C592 10 10V
R529 220k
WAVRB BUFFER, DRVC BUFFER
RF-AC
GND IC503 NJM3404AM-TE2 VCC TP509 JL566 JL565 TP508 JL614 JL564 JL613 JL612 CL508 SQCK SQSO TP507 JL563 JL562 JL616 JL615
JL569
JL571
CN708 30P
TP501
JL593
JL602
C518 0.1
R565 10k
TP510
EXCK SBSO
PI TE FE
JL547
TP503
C591 10 10V
R522 0 SFDR
C545 10 10V C543 0.1 C588 2200p R655 1k R656 1k R657 2.2k C589 2200p R658 2.2k R659 2.2k C590 1000p R660 2.2k JL560
JL561 CL507 CL506 JL611
C513 0.1
SRDR TFDR TRDR FFDR FRDR
JL559 JL558 JL557 JL556 JL555 DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR IC509 CXD3068Q
JL610
768FS
R619 0 JL609 JL608 R628 0
(Page 26)
CL1076 LDON CL1077 A3V CL1078 FDCL1079 FD+ CL1080 TDCL1081 TD+ CL1082 SDCL1083 SD+ CL1084 SPCL1085 SP+ CL1086 D3V CL1087 NC CL1088 LIM_SW R1018 22
BCLK MDAT
FDFD+ TDTD+ SDSD+ SPSP+ R503 0 FE R560 1k TP505 TP506 (FE) R558 47k JL553 TP504 (AVC) R578 0 R577 0 JL554 JL607 JL606 JL605 JL604 R627 0 R626 0 R625 330
(Page 32)
LRCK DOUT MD2 C570 10 10V C569 0.1
R621 0
LIM_SW
C942 0.1
JL568 JL570 JL572 JL573
JL577
C531 0.047
C533 2200p
C544 0.1
JL589
JL590
JL592
TE
R584 33k
R593 100k JL583 JL581 JL585
JL599
JL597
R654 10k
R562 1k
JL594
JL546
TP513 (TE)
JL603 JL601 R618 470k R617 1M
C563 100p R613 1M
PI R549 0 R561 1k
TP511
R588 10k
R608 10k R604 1k C559 0.1 C565 0.1
C534 22000p
C535 2200p
FL501
RFAC CN151 5P S151 (LOADING OUT) S152 (LOADING IN) M151 (LOADING) LOADLOADIN_SW
R603 3.3k C556 10 10V
CN703 5P CL1089 OUT_SW CL1090 IN_SW CL1093 GND CL1091 LOAD+
OUT_SW
C560 0.0015 C561 0.1
R501 10k R502 10k
C553 10000p C547 0.1 TP502 C548 0.01 C551 0.47
OUT_SW IN_SW GND LOAD+
TE
MDP
FE
PI
RF_AC
CL1092
LOAD-
WAVRB
LOAD+
ANALOG_BUS
(Page 31)
30
30
A10
A6
A2
A4
A1
A3
A7
A5
A8
A9
SCD-XB780
5-12. SCHEMATIC DIAGRAM MAIN Board (2/5)
(Page 30)
(2/5)
SP_ERR SPDA
FJMP1
FJMP2
MUTE_LOAD
LOAD_OUT
SP_ON
TRKSW
MUTE_2D
C520 22 16V
JL542
JL543
JL621
C525 0.1 +2.5V REGULATOR TRACKING COIL DRIVE CONTROL SWITCH IC501 TC7S66F C536 R534 0.47 3.3k C562 680p R611 22k IC502 BA5983FP C519 1 JL521 C526 0.1 R576 0 R509 10k C528 10 10V R512 0 C502 0.1 R508 3.3k IC504 µPC2905T-E1 I G O R581 10k JL528
LOAD_IN
C587 0.1
JL617
SPIN
JL618
R582 10k
R554 2.7k
C527 560p
R632 10k
R606 15k
R556 2.7k C529 560p
R634 6.8k R642 33k C577 10000p
JL520
JL519
JL630 R505 4.7k
JL636
TFDR TRDR
R607 4.7k
R602 4.7k IC505 TC7S66F
R601 22k R524 10k
R507 3.3k
C549 0.1
R506 4.7k
C558 680p
SPINDLE/LOADING R590 10k R597 10k R589 33k MOTOR DRIVE SFDR SRDR R594 33k C554 0.1 IC512 BA5912AFP-YE2
C542 R555 0.47 3.3k R515 0 TRACKING COIL DRIVE CONTROL SWITCH
JL516 JL517 JL637 JL641
R559 10
R645 10
FFDR FRDR
R523 10 R595 4.7k C555 680p R599 2.7k C511 0.1
FOCUS/TRACKING COIL DRIVE, SLED MOTOR DRIVE
R572 10 C539 0.1
R573 10 C541 0.1
R563 10 C532 0.1
R644 10
R592 4.7k
C550 680p
R591 2.7k
R513 10
R518 10
R516 10
C579 0.1 C530 0.1 C583 0.1 C582 0.1
C584 22 16V
C506 0.1
C510 0.1
C509 0.1
R661 0
LOAD+
LOAD-
SD+
SP+
TD+
FD+
SD-
31
31
SP-
TD-
FD-
A10
A4
A6
A2
A9
A7
A3
A1
A8
A5
SCD-XB780
5-13. SCHEMATIC DIAGRAM MAIN Board (3/5) · See page 42 for Waveforms. · See page 45 for IC Block Diagram.
(3/5)
B1 B2
RF_AC
APDO
JIT
(2/2) SPINDLE MOTOR DRIVE R545 100k C523 1500p (1/2) BUFFER MDIN A5V FL706 MDP C729 10 10V TP706 SPIN R701 220k C521 1500p TP705 C701 10 10V C705 0.1 R702 100k FL701 R704 220k R703 100k CL1008 C702 10 10V 1 3 2 R544 100k R540 10k R541 100k R538 100k 1 2 3 DVC BUFFER
(2/2)
R729 0 INTEGRATOR
D3V
(1/2)
TP701 D903 1SS367
IC706 GM71VS18163CLT-6 B3 VDD GND BDF I/O0 I/O15 BDE I/O1 FL705 BD2 I/O2 BD3 I/O13 BDC I/O3 I/O12 GND BDB I/O4 I/O11 BDA I/O5 BD6 I/O6 BD7 I/O7 I/O8 N.C. JL1080 JL1075 N.C. I/O9 BD8 I/O10 BD9 VDD BD4 I/O14 BDD BD0
R705 100k
C798 0.1
TP703 (RFAC) C715 3300p R724 1k R720 1k TP704 (AGND) R707 100
TP702 R725 1.8k R726 33k BD1
C799 0.01
IC703(2/2) NJM3404AM-TE2
IC703(1/2) NJM3404AM-TE2 6 5 C703 1 R721 33k C720 0.1 4 8 R727 3.3k
C704 1
C728 0.1
IC708(2/2) NJM3404AM-TE2
7 C721 1
R706 100k
R728 10k
R708 1M
C717 0.01
C712 220p
C747 1
C713 0.1
C723 0.1 BDA
C722 0.1 BDC
XCAS
XMOE
BD8
MA8
MA9
BDD
BDB
BDE
BD9
BDF
R713 10k
C716 0.47
R718 10k
CL701 C725 0.1
R716 100
R781 0
C708 1000p
8
R717 100k
R710 C711 10k 0.01
R709 68k
6 5
C706 0.1
R780 0
7 C731 0.1 DRVC DVC AVC IC708(1/2) NJM3404AM-TE2 4
R711 2.2k C709 0.1
R712 10k
C724 0.1
C727 10 10V
BD5
JL1081 CL1017 JL1076 N.C. JL1077 N.C. LCAS XCAS WE RAS RAS JL1078 OE MA9 N.C. JL1079 N.C. MA0 A0 GFS_V MA1 A1 MA2 A2 A5 MA4 A3 A4 GND VDD C726 0.1 MA3 A6 MA5 A7 MA6 A8 MA7 A9 MA8 UCAS XMOE N.C.
C718 0.1
C707 33p
C714 1
CL710
CL727
CL918
CL711
JL720
C752 0.1
JL723
JL724
JL721
JL722
JL717
JL718
JL715
JL716
JL719
WE JL726
FL703 D5V D3V DGND A3V FL704 AGND MDIN R767 47k C774 4700p
C780 10 10V C777 0.1 FL702 C779 10 10V C778 0.1 JL929 C781 10 10V C776 0.1 JL786 R765 22k C772 0.1 JL785 JL731 JL734 JL735 JL736 R761 2.2k R769 2.2k CL796 CL795 R764 1M CL794 CL793 C773 0.47 R763 8.2k R762 22k GSCOR EXCK SBSO R759 0 R758 0 R757 0 R756 0 C770 0.1 R770 0 CL792 JL738 JL740 JL741 R730 22 C740 0.1 R731 22 MA1 MA0 RAS JL737 C730 0.1 C775 0.1
CL703
CL707
CL728
R714 10k
R719 1k
D-RAM MA7 MA6 MA5 MA4 MA3 MA2
ANALOG_BUS C771 0.047
R772 22
TP802
CL750 JL784 JL783 JL782 JL781
JL742 JL743 JL744 JL745
WE BD7 BD6 BD5 IC814 SN74AHCT1G08DCKR G R847 22 V C813 0.01 B4 LEVEL SHIFT
(Page 33)
SCOR WFCK
JL746 CL781
C741 0.1
BD4
R766 0 R755 0
C769 0.1 R778 100k
CL780
JL750 JL751 JL752
BD3 BD2 BD1 BD0 LEVEL SHIFT C742 0.1 R732 10k SD7 R733 10k R734 10k C743 0.1 SD6 SD5 SD4 SD3 R735 10k R736 10k R737 10k R738 10k SD2 SD1 SD0
C2PO
C768 0.1
CL791 SACD DECODER
JL753 JL754
DSP_BUS
(Page 30)
BCLK
C767 0.1
CL790 CL787 CL789
IC701 CXD1882R-1 JL755 JL756 JL757 JL758
IC812 SN74LV245APWR
C811 0.01
MDAT
CL786
AV7 AV6 AV5 AV4 AV3 AV2 AV1 AV0 B5
CL788 LRCK XRST_DVD R768 100 CL785
JL759
JL760 JL761
C766 100p
JL762 JL763
R776 0 R750 10k SPC970_BUS
JL764 R740 10k C744 R741 0.1 22
JL765
C819 0.01 XSHD XDCK SDEF C812 0.01 SDEF XSAK XSHD SDCK CL870 CL871 CL872
D0 D1 D2 D3 D4
JL766 JL767
JL768
C745 R742 0.1 22 R743 22
XSAK XSAK XSHD XDCK
JL1088 R777 0
CL778
CL873 IC813 SN74LV245APWR B6
CL779
JL776
JL774
JL773
JL772
JL771
JL770
JL769
C765 0.1
CL776
CL773 CL774 C761 0.1 C760 0.1 CL771 CL772
CL770 JL777 C762 0.1 LEVEL SHIFT B7
XINT1
XHWR
XHRD
XINT0
C764 0.1
C763 0.1
XCS1882
R745 47k
R744 22
SDEF
CL777
SD7
SD6
SD5
CL775
R746 47k
SD0
SD1
SD4
SD3
SD2
D5
D7
D6
A2
A0
A3
A7
A1
A5
A6
A4
B8 B9
(Page 34)
D4
D2
D3
D1
32
32
SCD-XB780
5-14. SCHEMATIC DIAGRAM MAIN Board (4/5) · See page 42 for Waveforms.
(4/5)
DGND D3V
B1
D3V
D3V
B2
WAVRB
AGND
RF_AC
D3V
+2.