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Deck and Tuner section in CMT-F3MD)
COMPACT DISC DECK RECEIVER
Service Manual
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HCD-F3MD
SERVICE MANUAL
E Model
HCD-F3MD is the Amplifier, CD player, MD Deck and Tuner section in CMT-F3MD.
US and foreign patents licensed from Dolby Laboratories.
Model Name Using Similar Mechanism CD Section CD Mechanism Type Base Unit Name Optical Pick-up Name Model Name Using Similar Mechanism MD Section MD Mechanism Type Base Unit Name Optical Pick-up Name
HCD-MD373 CDM55A-5SBD32 BU-5SBD32 KSS-213BH/Z-NP HCD-MD373 MDM-5GA MBU-5A KMS-260B/S1NP
SPECIFICATIONS
Amplifier section
DIN power output (Rated):20 + 20 watts (6 ohms at 1 kHz, DIN, 240 V) 18 + 18 watts (6 ohms at 1 kHz, DIN, 220 V) Continuous RMS power output (Reference): 25 + 25 watts (6 ohms at 1 kHz, 10% THD, 240 V) 23 + 23 watts (6 ohms at 1 kHz, 10% THD, 220 V) Peak Music Power Output: 400 watts Inputs TAPE IN (phono jacks): voltage 250 mV, impedance 47 kilohms Outputs TAPE OUT (phono jacks): voltage 250 mV, impedance 1 kilohm PHONES (stereo minijack): accepts headphones of 8 ohms or more. SPEAKER: accepts impedance of 6 to 16 ohms. Laser output Max. 44.6 µW* *This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with a 7 mm aperture. 2 Hz 20 kHz
AM tuner section
Tuning range 531 1,602 kHz (with the interval set at 9 kHz) 530 1,710 kHz (with the interval set at 10 kHz) AM loop aerial External aerial terminals 450 kHz
Frequency response
Aerial Intermediate frequency
MD deck section
System Laser Laser output MiniDisc digital audio system Semiconductor laser (=780 nm) Emission duration: continuous Max. 44.6 µW* *This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with a 7 mm aperture. 44.1 kHz 5 Hz 20 kHz
General
110 120 V or 220 240 V AC, 50/60 Hz Power consumption 70 watts during normal operation Approx. 3 watts in standby mode (clock displayed) Approx. 1 watt in standby mode (clock not displayed) Dimensions (w/h/d) incl. projecting parts and controls Approx. 215 × 150 × 335 mm Approx. 4.9 kg Mass Power requirements
Sampling frequency Frequency response
Tuner section
FM stereo, FM/AM superheterodyne tuner
CD player section
System Laser Compact disc and digital audio system Semiconductor laser (=780 nm) Emission duration: continuous
FM tuner section
Tuning range Aerial Aerial terminals Intermediate frequency 87.5 108.0 MHz (50 kHz step) FM lead aerial 75 ohms unbalanced 10.7 MHz
Design and specifications are subject to change without notice.
COMPACT DISC DECK RECEIVER
SELF-DIAGNOSIS FUNCTION
The self-diagnosis function consists of error codes for customers, which are displayed automatically when errors occur, and error codes, which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box in the instruction manual. For details on how to check error codes during servicing, refer to the following "Procedure for using the Self-Diagnosis Function (Error History Display Mode)".
Self-diagnosis Display
This system has a Self-diagnosis display function to let you know if there is a system malfunction. The display shows a code made up of three letters and a message alternately to show you the problem. To solve the problem refer to the following list. If any problem persists, consult your nearest Sony dealer.
C13/REC Error Recording could not be performed properly. cMove the system to a stable place, and start recording over from the beginning. The MD is dirty or scratched, or the MD does not meet the standards. cReplace the MD and start recording over from the beginning. C13/Read Error The MD deck cannot read the disc information properly. cRemove the MD once, then insert it again. C14/Toc Error The MD deck cannot read the disc information properly. cReplace the MD. cErase all the recorded contents of the MD using the All Erase function on page 38.
C11/Protected The MD is protected against erasure. cRemove the MD and slide the tab to close the slot (see page 24). C12/Cannot Copy You tried to record a CD or MD with a format that the system does not support, such as a CDROM. cRemove the disc and turn off the system once, then turn it on again.
C41/Cannot Copy The sound source is a copy of a commercially available music software, or you tried to record a CD-R (Recordable CD). cThe Serial Copy Management System prevents making a digital copy (see page 53). You cannot record a CD-R.
PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNCTION (ERROR HISTORY DISPLAY MODE)
Note 1: About "R" As this unit has only a few buttons, some operations require the use of remote commander (RM-SF3MD/provided with unit: 1-476-068-11) buttons. These operations are indicated as "R" in this manual. Example: MENU/NO "R" ...Press the [MENU/NO] button of the remote commander. Note 2: Incorrect operations may be performed if the MD test mode is not entered properly. In this case, press the I/1 button to turn the power off, and retry to enter the MD test mode. Note 3: Perform the self-diagnosis function in the "error history display mode" in the MD test mode. The following describes the least required procedure. Be careful not to enter other modes by mistake. If you set other modes accidentally, press the MENU/NO "R" button to exit the mode.
Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [FUNCTION] button to set the MD function. 3. Press three buttons of s (MD) , zREC and I/1 simultaneously to enter the MD test mode and display "[Check]". 4. Press the l m or M L button to display "[Service]", and press the ENTER/YES "R" button. 5. Press the l m or M L button to display "ERR DP MODE". 6. Press the ENTER/YES "R" button to enter the error history mode and display "total rec". 7. Select the contents to be displayed or executed using the l m or M L button. 8. Press the [CD-MD SYNC] button will display or execute the contents selected. 9. Press the [CD-MD SYNC] button another time returns to step 7. 10. Press the MENU/NO "R" button displays "ERR DP MODE" and release the error history mode. 11. To release the MD test mode, press the [REPEAT] button to display "Initialize" and release the MD test mode.
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ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS
Selecting the Test Mode Display total rec Details of History Displays the recording time. Displayed as "rssssssh". The displayed time is the total time the laser is set to the high power state. This is about 1/4 of the actual recording time. The time is displayed in decimal digits from 0h to 65535h. Displays the play time. Displayed as "pssssssh". The time displayed is the total actual play time. Pauses are not counted. The time is displayed in decimal digits from 0h to 65535h. Displays the total number of retries during recording and number of retry errors during play. Displayed as "rss pss". "r" indicates the retries during recording while "p" indicates the retry errors during play. The number of retries and retry errors are displayed in hexadecimal digits from 00 to FF. Displays the total number of errors. Displayed as "total ss". The number of errors is displayed in hexadecimal digits from 00 to FF. Displays the 10 latest errors. Displayed as "0s E@@". s indicates the history number. The smaller the number, the more recent is the error. (00 is the latest). @@ indicates the error code. Refer to the following table for the details. The error history can be switched by pressing the l m or M L button. Mode which erases the "retry err", "total err", and "err history" histories. When returning the unit to the customer after completing repairs, perform this to erase the past error history. After pressing the [CD-MD SYNC] button and "er refresh?" is displayed, press the ENTER/YES "R" button to erase the history. "Complete!" will be displayed momentarily. Be sure to check the following when this mode has been executed. · The data has been erased. · The mechanism operates normally when recording and play are performed. Mode which erases the "total rec" and "total play" histories. These histories serve as approximate indications of when to replace the optical pick-up. If the optical pickup has been replaced, perform this operation and erase the history. After pressing the [CD-MD SYNC] button and "tm refresh?" is displayed, press the ENTER/YES "R" button to erase the history. "Complete!" will be displayed momentarily. Be sure to check the following when this mode has been executed. · The data has been erased. · The mechanism operates normally when recording and play are performed.
total play
retry err
total err
err history
er refresh
tm refresh
Table of Error Codes Error Code E00 E01 Details of Error No error Disc error. PTOC cannot be read (DISC ejected) E02 Disc error. UTOC error (DISC not ejected) E03 E04 Loading error Address cannot be read (Servo has deviated) E0A Error Code E05 E06 E07 E08 E09 Details of Error FOK has deviated Cannot focus (Servo has deviated) Recording retry Recording retry error Playback retry error (Access error) Playback retry error (C2 error)
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TABLE OF CONTENTS SELF-DIAGNOSIS FUNCTION ..................................... 2 1. 2. 3. 4. 5. SERVICING NOTES ............................................... 5 GENERAL ................................................................... 16 DISASSEMBLY ......................................................... 18 TEST MODE ............................................................... 26 ELECTRICAL ADJUSTMENTS
MD Section ..................................................................... 30 CD Section ...................................................................... 38
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.
6.
6-1. 6-2. 6-3. 6-4. 6-5. 6-6. 6-7. 6-8. 6-9. 6-10. 6-11. 6-12. 6-13. 6-14. 6-15. 6-16. 6-17. 6-18. 6-19. 6-20. 6-21. 6-22. 6-23. 6-24. 6-25. 6-26. 6-27.
DIAGRAMS
Block Diagram CD SERVO Section ....................... Block Diagram MD SERVO Section (1/2) ............. Block Diagram MD SERVO Section (2/2) ............. Block Diagram MAIN Section ................................ Note for Printed Wiring Boards and Schematic Diagrams ....................................................... Printed Wiring Board BD (CD) Board .................... Schematic Diagram BD (CD) Board ....................... Schematic Diagram BD (MD) Board (1/2) ............. Schematic Diagram BD (MD) Board (2/2) ............. Printed Wiring Board BD (MD) Board ................... Schematic Diagram BD SW (MD) Board ............... Printed Wiring Board BD SW (MD) Board ............ Schematic Diagram LOADING (CD) Board .......... Printed Wiring Board LOADING (CD) Board ....... Printed Wiring Board MD DIGITAL Board ........... Schematic Diagram MD DIGITAL Board .............. Printed Wiring Board MAIN Board ........................ Schematic Diagram MAIN Board (1/3) .................. Schematic Diagram MAIN Board (2/3) .................. Schematic Diagram MAIN Board (3/3) .................. Printed Wiring Boards AMP/SP Boards .................. Schematic Diagram AMP/SP Boards ...................... Printed Wiring Board PANEL Board ...................... Schematic Diagram PANEL Board ........................ Printed Wiring Board POWER Board ..................... Schematic Diagram POWER Board ........................ IC Pin Function Description ........................................... 39 40 41 42 43 44 45 46 47 48 49 49 49 49 50 51 52 53 54 55 56 57 58 59 60 61 70
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. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.
Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. The following caution label is located inside the unit.
7. 8.
EXPLODED VIEWS ................................................ 80 ELECTRICAL PARTS LIST ............................... 86
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.
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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. MODEL IDENTIFICATION -- Back panel --
PART No.
For CD
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. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the "S curve check" in "CD section adjustment" and check that the S curve waveforms is output three times.
Model Hong Kong model Korean model Taiwan model
Part No. 4-229-548-1[] 4-232-128-0[] 4-232-129-0[]
For MD
NOTES ON LASER DIODE EMISSION CHECK Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight. CLEANING OBJECTIVE LENS OF OPTICAL PICK-UP · In cleaning the objective lens of optical pick-up, be sure the following below. 1. In cleaning the lens, do not apply an excessive force. As the optical pick-up is vulnerable, application of excessive force could damage the lens holder. 2. In cleaning, do not use a cleaner other than exclusive cleaning liquid (KK-91 or isopropyl alcohol). 3. Wipe the objective lens spirally from center toward outside. (See Figure A)
(Figure A)
4. Eject the disk, if loaded. 5. Disconnect the power cord from the socket to shut off the power supply. 6. When cleaning the objective lens of optical pick-up in CD, refer to "HOLDER (BU) ASS'Y" on page 24 for removing HOLDER (BU) ASS'Y.
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DRAWING OUT THE TRAY WHEN THE POWER IS OFF
tray (CDM)
A
Move the cam block in the direction of arrow A with a finger.
CLEANING THE OPTICAL PICK-UP (CD PLAYER)
CD mechanism deck floating screw (PTPWH M2.6)
optical pick-up block
Clean the lens block with a cotton bud.
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SERVICE POSITION OF THE MD MECHANISM DECK
MD mechanism deck
SERVICE POSITION OF THE CD MECHANISM DECK
CD mechanism deck
SERVICE POSITION OF THE POWER BOARD
POWER board
AMP board
CN993 MAIN board
CN802
Extension cable (4P) (J-2501-042-A) Extension cable (3P) (J-2501-045-A)
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MC COLD RESET · The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure: 1. Press the I/1 button to turn the power on. 2. While pressing the [PLAY MODE/TUNING MODE] and s (CD) buttons, press the I/1 button. 3. The set is reset, and displays "COLD RESET", then becomes standby status. MC HOT RESET · This mode resets the set with the preset data kept stored in the memory. The hot reset mode function is same as if the power cord is plugged in and out. Procedure: 1. Press the I/1 button to turn the power on. 2. While pressing the [PLAY MODE/TUNING MODE] and HS (CD) buttons, press the I/1 button. 3. The set is reset, and becomes standby state. LED/FLUORESCENT INDICATOR TUBE AND KEY TEST Procedure: 1. Press the I/1 button to turn the power on. 2. While pressing the [PLAY MODE/TUNING MODE] and A (CD) buttons, press the I/1 button. 3. LEDs and fluorescent indicator tube are all turned on. 4. Press the HS (MD) button to enter the key test mode, and display "Key0 Vol0". 5. Each time a button is pressed, "Key" value increases. However, once a button is pressed, it is no longer taken into account. "Vol" value increases like 0, 1, 2 ... if turn the [VOLUME] knob clockwise, or it decreases like 9, 8, 7 ... if turn the [VOLUME] knob counterclockwise. 6. To release from this mode, press three buttons in the same manner as step 2, or disconnect the power cord.
Note: l m and M L buttons are no longer taken into account, if it pressed within for a second.
CHANGE-OVER THE AM TUNING INTERVAL · The AM tuning interval can be changed over 9 kHz or 10 kHz. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [FUNCTION] button to set the TUNER function, and press the [TUNER/BAND] button to select the band "AM". 3. Press the I/1 button to turn the power off. 4. When the power off, press the I/1 button while pressing the [PLAY MODE/TUNING MODE] button, and the display of fluorescent indicator tube changes to "AM 9k STEP" or "AM 10k STEP", and thus the tuning interval is changed over.
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MD SECTION JIG FOR CHECKING BD (MD) BOARD WAVEFORM
The special jig (J-2501-149-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items to be performed are shown as follows. GND : Ground I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser) IOP : For measuring IOP (Check the deterioration of the optical pick-up laser) TEO : Tracking error signal (Traverse adjustment) VC : Reference level for checking the signal RF : RF signal (Check jitter)
Mechanism deck
CN110 6P connector
5P connector
RF
VC TEO IOP I+3V GND
1 RF VC for TEO MDM-3 IOP 5 I+3V 1 VC RF TEO for IOP MDM-5 I+3V 6 GND
RF VC TEO IOP I+3V GND
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Note : About "R" As this unit has only a few buttons, some operations require the use of remote commander (RM-SF3MD/provided with unit: 1-476-068-11) buttons. These operations are indicated as "R" in this manual. Example: MENU/NO "R" ...Press the [MENU/NO] button of the remote commander.
IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 ON THE BD (MD) BOARD) ARE REPLACED The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC171 on the BD (MD) board), record the IOP value on the optical pick-up according to the following procedure. Record Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [FUNCTION] button to set the MD function. 3. While pressing the s (MD) and zREC buttons, press the I/1 button to enter the MD test mode and display "[Check]". 4. Press the l m or M L button to display "[Service]", and press the ENTER/YES "R" button. 5. Press the l m or M L button to display "Iop Write", and press the ENTER/YES "R" button. 6. The display becomes "Ref=@@@.@" (@ is an arbitrary number) and the numbers which can be changed will blink. 7. Input the IOP value written on the optical pick-up. To select the number : Press the l m or M L button. To select the digit : Press the [SYNC REC] button. 8. When the ENTER/YES "R" button is pressed, the display becomes "Measu=@@@.@" (@ is an arbitrary number). 9. As the adjustment results are recorded for the step7 value. Leave it as it is and press the ENTER/YES "R" button. 10. "Complete!" will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become "Iop Write". 11. Press the [REPEAT] button to complete. "Standby" will be displayed. Display Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [FUNCTION] button to set the MD function. 3. While pressing the s (MD) and zREC buttons, press the I/1 button to enter the MD test mode and display "[Check]". 4. Press the l m or M L button to display "[Service]", and press the ENTER/YES "R" button. 5. Press the l m or M L button to display "Iop Read", and press the ENTER/YES "R" button. 6. "@@.@/##.#" is displayed and the recorded contents are displayed. @@.@ : indicates the Iop value labeled on the pick-up. ##.# : indicates the Iop value after adjustment 7. To release, press the [CD-MD SYNC] button or MENU/NO "R" button to display "Iop Read". Then press the [REPEAT] button to display "Standby".
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CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS
Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in "5 Electrical Adjustments". Criteria for Determination (Unsatisfactory if specified value is not satisfied) Laser power check (5-6-2 : See page 32) · 0.9 mW power Specified value : 0.84 to 0.92 mW · 7.0 mW power Specified value : 6.8 to 7.2 mW lop (at 7mW) · Labeled on the optical pickup Iop value ± 10mA Traverse check (5-6-3 : See page 32) Focus bias check (5-6-4 : See page 33) · Traverse waveform Specified value : Below 10% offset · Error rate check Specified value : For points A, B C1 error : About 200 AD error : Below 2 For point C C1 error : Below 50 AD error : Below 2 · Error rate check Specified value: a. When using test disc (MDW-74/AU-1) C1 error : Below 80 AD error : Below 2 b. When using check disc (TDYS-1) C1 error : Below 50 · CPLAY error rate check Specified value: C1 error : Below 80 AD error : Below 2 Measure if unsatisfactory: · Clean the optical pick-up · Adjust again · Replace the optical pick-up · Replace the optical pick-up
· Replace the optical pick-up · Replace the optical pick-up
C PLAY check (5-6-5 : See page 33)
· Replace the optical pick-up
Self-recording/playback check (5-6-6 : See page 33)
If always unsatisfactory: · Replace the overwrite head · Check for disconnection of the circuits around the overwrite head If occasionally unsatisfactory: · Check if the overwrite head is distorted · Check the mechanism around the sled
Temperature compensation offset check (5-6-1 : See page 32)
· Unsatisfactory if displayed as T=@@ (##) [NG" NG (@@, ## are both arbitrary numbers)
· Check for disconnection of the circuits around D101 (BD (MD) board) · Check the signals around IC101, IC121, CN102, CN103 (BD (MD) board)
Note: The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for adjustments. When performing adjustments, use the specified values for adjustments.
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RETRY CAUSE DISPLAY MODE
· In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. During playback, the "track mode" for obtaining track information will be set. This is useful for locating the faulty part of the unit. · The following will be displayed : During recording and stop : Retry cause, number of retries, and number of retry errors. During playback : Information such as type of disc played, part played, copyright. These are displayed in hexadecimal. Procedure: 1. Load a recordable disc whose contents can be erased into the unit. 2. Press the MENU/NO "R" button. When "Edit Menu" is displayed on the fluorescent indicator tube, press the l m or M L button to display "All Erase?". 3. Press the ENTER/YES "R" button. 4. When "All Erase??" is displayed on the fluorescent indicator tube, the music calendar number blinks. 5. Press the ENTER/YES "R" button to display "Complete!!", and press the s (MD) button immediately. Wait for about 10 seconds while pressing the button. 6. When the "TOC" displayed on the fluorescent display tube goes off, release the s (MD) button. 7. Press the zREC button to start recording. Then press the HS (MD) button and start recording. If recording cannot be performed, press the [FUNCTION] button and set a different function. 8. To check the "track mode", press the HS (MD) button to start play. 9. To release the test mode, press the I/1 button, and turn the power off. When "TOC" disappears, disconnect the power plug from the outlet. If the test mode cannot be released, refer to "MC COLD RESET" on page 8).
Fig. 1 Reading the Test Mode Display (During recording and stop)
RTs@@c##e** Fluorescent indicator tube display @@ : Cause of retry ## : Number of retries ** : Number of retry errors
Fig. 2 Reading the Test Mode Display (During playback)
@@ ###** $$ Fluorescent indicator tube display @@ : ## : ** : $$ : Parts No. (name of area named on TOC) Cluster Address Sector Track mode (Track information such as copyright information of each part)
Reading the Retry Cause Display Hexa1 decimal b7 b6 b5 b4 b3 b2 b1 b0 4 0 0 0 0 0 0 1 0 2 0 0 0 0 0 1 0 0 1 0 0 0 0 1 0 0 0 8 0 0 0 1 0 0 0 0 4 0 0 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 01 02 04 08 10 20 40 80 Higher Bits Lower Bits Cause of Retry shock ader5 Occurring conditions When track jump (shock) is detected When ADER was counted more than five times continuously
Hexadecimal 8 Bit Binary
Discontinuous address When ADIP address is not continuous When DIN unlock is detected DIN unlock FCS incorrect IVR rec error CLV unlock Access fault When not in focus When ABCD signal level exceeds the specified range When CLV is unlocked When access operation is not performed normally
Reading the Display: Convert the hexadecimal display into binary display. If more than two causes, they will be added. Example When 42 is displayed: Higher bit: 4 = 0100 t b6 Lower bit : 2 = 0010 t b1 In this case, the retry cause is combined of "CLV unlock" and "ader5". When A2 is displayed: Higher bit: A = 1010 t b7+b5 Lower bit : 2 = 0010 t b1 The retry cause in this case is combined of "access fault", "IVR rec error", and "ader5".
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Reading the Retry Cause Display Higher Bits Lower Bits HexaHexadecimal 8 4 2 1 8 4 2 1 decimal Bit b7 b6 b5 b4 b3 b2 b1 b0 Binary 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 01 02 04 08 10 20 40 80 Monaural This is 2-bit display. Normally 01. 01:Normal audio. Others:Invalid Audio (Normal) Original Copyright Write prohibited Invalid Digital copy No copyright Write allowed Details When 0 Emphasis OFF Stereo When 1 Emphasis ON
Reading the Display: Convert the hexadecimal display into binary display. If more than two causes, they will be added. Example When 84 is displayed: Higher bit: 8 = 1000 t b7 Lower bit : 4 = 0100 t b2 In this case, as b2 and b7 are 1 and others are 0, it can be determined that the retry cause is combined of "emphasis OFF", "monaural", "original", "copyright exists", and "write allowed". Example When 07 is displayed: Higher bit: 0 = 0000 t All 0 Lower bit : 7 = 0111 t b0+b1+b2 In this case, as b0, b1, and b2 are 1 and others are 0, it can be determined that the retry cause is combined of "emphasis ON", "stereo", "original", "copyright exists", and "write prohibited".
Hexadecimal t Binary Conversion Table
Hexadecimal 0 1 2 3 4 5 6 7 Binary 0000 0001 0010 0011 0100 0101 0110 0111 Hexadecimal 8 9 A B C D E F Binary 1000 1001 1010 1011 1100 1101 1110 1111
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CD SECTION
CD TEXT DISPLAY · This unit displays CD text. Text is displayed for the first 50 tracks only and will not be displayed from the 51st track onwards. Do not suspect a fault in this case. In some cases, some special characters will not be displayed and may be replaced by other characters. Do not suspect a fault in this case. AGING MODE · Mode for repeating operations of the CD player automatically. When errors occur: Aging stops and a message indicating that an error has occurred such as "CD MEC ERR" is displayed. (For details of errors, refer to "Error History Display Mode") When no errors occur: Aging is repeatedly performed. Procedure: 1. Load any CD disc. 2. Press the [FUNCTION] button to set the CD function. 3. While pressing the [PLAY MODE/TUNING MODE] and HS (MD) buttons, press the I/1 button. 4. "AGING" is displayed on the fluorescent display tube briefly. 5. When the aging mode is set, it starts aging automatically. 6. Operations are performed in the following sequence during aging. Aging mode sequence:
TOC read
Playback track 1
Playback last track
CD disc tray open
CD disc tray open
7. To release from this mode, while pressing the [PLAY MODE/TUNING MODE] and HS (CD) buttons, press the I/1 button. (Hot reset is executed) Error History Display Mode Mode for checking the history of errors which have occurred in the CD player. Execute this mode after ending the aging mode. Procedure: 1. Press the [FUNCTION] button to set the CD function. 2. While pressing the M L and s (MD) buttons, press the I/1 button. 3. "EMC@@EDC**" is displayed. @@ : Number of mechanism errors (Past 3 errors) ** : Number of errors (NO DISC ERROR) which occurred after chucking (Past 3 errors) 4. To check the history of mechanism errors, press the [PLAY MODE/TUNING MODE] button, and to check BD errors, press the [REPEAT] button, and switch the display. 5. To release, press the I/1 button and turn the power off. 6. To erase the error history, perform COLD reset. (While pressing the [PLAY MODE/TUNING MODE] and s (CD) buttons, press the I/1 button)
14
· Reading the Mechanism Error History Display (To switch the history, press the [PLAY MODE/TUNING MODE] button) Display E@@M**#*$* @@ : Error number. 00 is the latest * : Invalid # : Load in operations related D : Operations stopped due to problems other than mechanism related during CLOSE E : Operations stopped due to problems other than mechanism related during OPEN C : Operations stopped due to problems other than mechanism related during chucking up $ : Load out operations related 1 : Operations stopped during chucking up 2 : Operations stopped during chucking down · Reading the BD Error History Display (To switch the history, press the [REPEAT] button) Display E@@D##$$%* @@ : Error number. 00 is the latest ## : Error details 01 : Focus error 02 : GFS error 03 : Setup error $$ : Retry performed/not performed 00 : Determined as NO DISC without chucking retry 02 : Determined as NO DISC after chucking retry % : State when determined as NO DISC 1 : When stopped 2 : During setup 3 : During TOC READ 4 : During access 5 : During playback 6 : During PAUSE 7 : During manual search (during playback) 8 : During manual search (during pause) : Invalid *
15
SECTION 2 GENERAL
LOCATION OF CONTROLS
· Front View 1 I/1 button and indicator 2 MD disc slot
This section is extracted from instruction manual.
3 MD A button and MD disc indicator 4 MD H S button and indicator 5 MD s button 6 CD disc tray 7 CD A button and CD disc indicator 8 CD H S button and indicator 9 CD s button
0 Fluorescent indicator tube qa Remote sensor qs TUNER/BAND button qd VOLUME knob qf FUNCTION button qg PHONES jack qh PLAY MODE, TUNING MODE button qj REPEAT, STEREO/MONO button qk CD-MD SYNC button ql zREC button and indicator w; MD/CD l m/M L, TUNUNG +/ buttons
· Rear View 1 TAPE IN/OUT jacks 2 SPEAKER IMPEDANCE 6-16 terminals 3 AM ANTENNA terminals 4 TAPE CONTROL jack 5 FM 75 COAXIAL jack 6 AC power cord
16
Parts descriptions for the remote
You can use the supplied remote to control the system. Note
You cannot perform the following operations with the remote; -- TUNING MODE setting for the tuner -- STEREO/MONO setting for the tuner -- Removing discs -- Recording on the MD -- One Touch Play
3 N (play) button X (pause) button x (stop) button CURSORT/t, m/M buttons
Press to label a CD, MD and preset station, or to set the clock. (pages 5, 18, 35, 45)
9 DBFB button
5 6
8 9
Press to reinforce the bass sound. (page 44)
0 SCROLL button
Press to display the disc title or track title scrolling. (pages 19, 23, 36)
qa CLEAR button
./> (AMS: Automatic Music Sensor) buttons 4 VOL +/ buttons
Press to adjust the volume.
0 7 qa
Press to cancel the selection. (pages 16, 18, 21, 35, 45)
MENU/NO button
Press to set Programme Play, or to label a CD, MD and preset station.
5 SLEEP button
Press to set Sleep Timer. (page 46)
1 2 3 4
ENTER/YES button
Press to set the clock, Programme Play and to label a CD, MD and preset station, or to enter the settings in "Edit Menu" or "Setup Menu". DISP button Press to show the various information. (pages 17 and 23)
6 PLAY MODE button
Press to select normal play, Shuffle Play or Programme Play. (pages 15, 16, 21, 25) REPEAT button Press to play a track or all the tracks repeatedly (pages 15 and 20). MUSIC MENU button Press to select the type of the preset equalizer. (page 44)
7 NAME EDIT buttons
Additional Information
CHARACTER button 1 ?/1 (power) switch 2 The sound source buttons
MD button CD button TAPE button FUNCTION button Press to switch the sound source. Each time you press this button, the sound source changes as follows; t CD t TUNER TAPE T MD T Press to display the text input screen and to select the type of characters to be input. (pages 19, 35, 45)
SPACE button
Press to enter a space directly when labelling a CD, MD and preset stion. (pages 19, 36, 46)
8 CLOCK/TIMER SELECT button
Press to check timer settings, or to set the timer on/off. (pages 48 and 49) CLOCK/TIMER SET button Press to set the clock and timer functions. (pages
5, 47, 48)
TUNER/BAND button Press to select the tuner for the sound source, or to select the FM or AM band.
60
61
Step 2: Setting the time
You must set the time beforehand to use the timer functions.
Step 2: Setting the time (continued)
5
Getting Started
Press . or > to set the minute. Press ENTER/YES.
The clock starts.
6
1 2 3,5
CURSORT DISP
If you made a mistake
Press CURSORT or t repeatedly until the incorrect item flashes, then set it again.
3,5 4 4,6
To change the preset time
You can change the preset time while the system is off. 1 Press DISP to display the clock. 2 Press CLOCK/TIMER SET. 3 Repeat steps 3 to 6 of "Setting the time". Tip
The upper dot of the colon flashes for the first 30 seconds, and the lower dot flashes for the last 30 seconds of each minute.
1 2
Turn on the system. Press CLOCK/TIMER SET.
The clock appears and the hour indication flashes.
3
Press . or > to set the hour.
4
Press ENTER/YES or CURSORt .
The minute indication flashes.
continued
5
6
17
SECTION 3 DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
CASE
2 case
1 two screws (case3 TP2)
1 two screws (case3 TP2)
FRONT PANEL SECTION
3 Remove the cord. 5 screw (BVTT3 × 6) 9 MD mechanism deck section 8 screw (BVTP2.6 × 8) 8 screw (BVTP2.6 × 8)
6 claw
1 wire (flat type) (25 core) (CN107)
2 ground wire
BACK PANEL ASS'Y (Page 22)
7 q; front panel section
4 three screws (BVTT3 × 6)
6 claw 1 wire (flat type) (29 core) (CN11) 6 claw
18
MD MECHANISM DECK (MDM-5GA)
2 four step screws (BVTPWH M3)
1 connector (CN601)
6 MD mechanism deck (MDM-5GA) 4 wire (flat type) (23 core) (CN103) 4 wire (flat type) (21 core) (CN102) 3
5 bracket (MDM)
SLIDER (CAM)
7 slider (cam) · NOTE FOR INSTALLATION OF SLIDER (CAM)
Set the shaft of cam gear to be at the position in the figure.
3 bracket (guide L) A
1 two screws (DIA2.6)
2 ground wire
Set the shaft of lever (O/C) to be at the position in the figure.
4 leaf spring (electrostatic)
When attaching the slider (cam), this part of the over write head should be inside arrow A.
6 bracket (guide R)
5 two screws (DIA.2.6)
19
BD (MD) BOARD, BASE UNIT (MBU-5A)
5 two flexible boards (CN101, 104) 7 base unit (MBU-5A)
CN103
CN102
1 Remove two solders of spindle motor leads (M901).
6 BD (MD) board
4 screw (M1.7) 2 Remove two solders of sled motor leads (M902).
3 three screws (DIA.2.6)
OVER WRITE HEAD (HR901)
2 screw (P1.7 × 6) 3 over write head (HR901)
1 flexible board (CN104)
20
SPINDLE MOTOR ASS'Y (M901), SLED MOTOR ASS'Y (M902)
3 gear (SL-B) 1 screw (M1.7)
4 three screws (B2 × 5)
2 gear (SL-A)
5 spindle motor ass'y (M901)
6 two screws (P1.7 × 2.5)
7 sled motor ass'y (M902)
OPTICAL PICK-UP OF MD (KMS-260B/S1NP)
4 Turn over the optical pick-up.
6 optical pick-up (KMS-260B/S1NP)
5 flexible board 1 screw (B2 × 8)
2 leaf spring (shaft) 3 main shaft
21
BACK PANEL ASS'Y
4 back panel ass'y 1 six screws (BVTP3 × 10)
3 claw
2 claw
3 claw
SP BOARD, POWER BOARD AND MAIN BOARD
4 two connectors (CN991, 992)
4 connector (CN993)
5 two screws (BVTT3 × 6)
8 connector (CN994) 9 POWER board 3 wire (flat type) (15 core)
3 wire (flat type) (25 core) (CN109) 2 SP board 1 two connectors (CN881, 882)
q; MAIN board 7
6 screw (BVTT3 × 6)
6 screw (BVTT3 × 6) 4 connector (CN110)
22
CD MECHANISM DECK (CDM55A-5SBD32)
4 holder (MDM) 3 screw (BVTT3 × 6)
7 CD mechanism deck (CDM55A-5SB32) 5 screw (BVTT3 × 6)
6 two claws
1 wire (flat type) (19 core) (CN109)
3 screw (BVTT3 × 6)
2 connector (CN110)
TRAY (CDM), GEAR AND CAM (CDM55)
Note: when drawing out the tray (CDM), refer to service notes DRAWING OUT THE TRAY WHEN THE POWER IS OFF on page 6 .
7 roller
4 belt (CDM55)
5 bushing 8 gear (B) 6 pulley (LDG)
9 gear (A) q; cam (CDM55) 2 Push the claw in the direction of arrow A.
A
1
tray (CDM)
3 Drawing out the tray (CDM).
2 Release the lock while pressing this claw in the arrow direction.
23
HOLDER (BU) ASS'Y
1 floating screw (PTPWH M2.6) 2 Remove the holder (BU) ass'y in the direction of the arrow.
OPTICAL PICK-UP OF CD (KSS-213BH/Z-NP)
5 optical pick-up (KSS-213BH/Z-NP)
3 wire (flat type) (16 core) 4 1 Release the lever in the direction of arrow A.
A
2 sled shaft
24
BD (CD) BOARD, BASE (BU-5S) ASS'Y (M101) AND SLED MOTOR ASS'Y (M102)
4 two screws (B2 × 4)
6 gear (M)
9 base (BU-5S) ass'y (M101)
8 two insulators (BU)
2 Remove the four solders. 8 two insulators (BU)
7 flatness gear (P)
M101
5 sled motor ass'y (M102)
M102
3 BD (CD) board 1 screw (BVTP2.6 × 8)
25
SECTION 4 TEST MODE
Note : About "R" As this unit has only a few buttons, some operations require the use of remote commander (RM-SF3MD/provided with unit: 1-476-068-11) buttons. These operations are indicated as "R" in this manual. Example: MENU/NO "R" ...Press the [MENU/NO] button of the remote commander.
4-1.
PRECAUTIONS FOR USE OF TEST MODE
· As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is stopped before setting and removing it. Even if the A (MD) button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating. Therefore, it will be ejected while rotating. Be sure to press the A (MD) button after pressing the MENU/NO "R" button and the rotation of disc is stopped. 4-1-1. Recording laser emission mode and operating buttons · Continuous recording mode (CREC MODE) · Laser power check mode (LDPWR CHECK) · Laser power adjustment mode (LDPWR ADJUST) · Traverse (MO) check (EF MO CHECK) · Traverse (MO) adjustment (EF MO ADJUST) · When pressing the zREC button.
4-2.
SETTING THE TEST MODE
The following are two methods of entering the test mode. Procedure 1: 1. Press the I/1 button to turn the power on. 2. Press the [FUNCTION] button to set the MD function. 3. While pressing the s (MD) and zREC buttons, press the I/1 button to enter the MD test mode and display "[Check]". When the test mode is set, "[Check]" will be displayed. Press the l m or M L button switches between the following four groups; ···y [Check] y [Adjust] y [Service] y [Develop] y ···. Procedure 2: 1. Press the I/1 button to turn the power on. 2. Press the [FUNCTION] button to set the MD function. 3. While pressing the s (MD) and [CD-MD SYNC] buttons, press the I/1 button to enter the MD test mode and display "TEMP CHECK". By setting the test mode using this method, only the "Check" group of method 1 can be executed.
4-3. 4-4.
RELEASING THE TEST MODE BASIC OPERATIONS OF THE TEST MODE
Press the [REPEAT] button.
All operations are performed using the l m or M L button , ENTER/YES "R" button, and MENU/NO "R" button. The functions of these buttons are as follows.
Function name l m , M L buttons
ENTER/YES "R" button MENU/NO "R" button
Function Changes parameters and modes Proceeds onto the next step. Finalizes input Returns to previous step. Stops operations
26
4-5.
SELECTING THE TEST MODE
There are 31 types of test modes as shown below. The groups can be switched by pessing the l m or M L button. After selecting the group to be used, press the ENTER/YES "R" button. After setting a certain group, press the l m or M L button switches between these modes. Refer to "Group" in the table for details can be selected. All items used for servicing can be treated using group S. So be carefully not to enter other groups by mistake.
Display TEMP CHECK LDPWR CHECK EF MO CHECK EF CD CHECK FBIAS CHECK Scurve CHECK VERIFYMODE DETRK CHECK TEMP ADJUST LDPWR ADJUST EF MO ADJUST EF CD ADJUST FBIAS ADJUST EEP MODE MANUAL CMD SVDATA READ ERR DP MODE SLED MOVE ACCESS MODE 0920 CHECK HEAD ADJUST CPLAY2 MODE CREC2 MODE ADJ CLEAR AG Set (MO) AG Set (CD) Iop Read Iop Write INFORMATION CPLAY MODE CREC MODE Laser power check Traverse (MO) check Traverse (CD) check Focus bias check S letter check Non-volatile memory check Detrack check Temperature compensation offset adjustment Laser power adjustment Traverse (MO) adjustment Traverse (CD) adjustment Focus bias adjustment Non-volatile memory control Command transmission Status display Error history display, clear Sled check Access check Outermost circumference check Head position check Same functions as CPLAY MODE Same functions as CREC MODE Initialization of non-volatile memory of adjustment value Auto gain output level adjustment (MO) Auto gain output level adjustment (CD) IOP data display IOP data write Microprocessing version display Continuous playback mode Continuous recording mode C C C A A C A (X) (X) (X) (X) (X) (X) A A A S S S S S S S S D D (X) (!) (X) (X) S D D D D D D (X) (X) (X) Contents Temperature compensation offset check Mark C C C C C C C C A A A A A S S S S S D D D Group (*) S S S S S
Group (*) C: Check S: Service
A: Adjust D: Develop
· For details of each adjustment mode, refer to "5. Electrical Adjustments". For details of "ERR DP MODE", refer to "Self-Diagnosis Function" on page 2. · If a different mode has been selected by mistake, press the MENU/NO "R" button to release that mode. · Modes with (X) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set accidentally, press the MENU/NO "R" button to release the mode immediately. Be especially careful not to set the modes with (!) as they will overwrite the non-volatile memory and reset it, and as a result, the unit will not operate normally.
27
4-5-1. Operating the Continuous Playback Mode 1. Entering the continuous playback mode (1) Set the disc in the unit. (Whichever recordable discs or discs for playback only are available.) (2) Press the l m or M L button and display "CPLAY MODE". (3) Press the ENTER/YES "R" button to change the display to "CPLAY MID". (4) When access completes, the display changes to "C1 = AD = ".
Note: The numbers " " displayed show you error rates and ADER.
2. Changing the parts to be played back (1) Press the ENTER/YES "R" button during continuous playback to change the display as below. "CPLAY MID" t "CPLAY OUT" t "CPLAY IN" When pressed another time, the parts to be played back can be moved. When access completes, the display changes to "C1 = AD = ".
Note: The numbers " " displayed show you error rates and ADER.
(2)
3. Ending the continuous playback mode (1) Press the MENU/NO "R" button. The display will change to "CPLAY MODE". (2) Press the A (MD) button and take out the disc.
Note: The playback start addresses for IN, MID, and OUT are as follows.
IN : 40h cluster MID : 300h cluster OUT : 700h cluster 4-5-2. Operating the Continuous Recording Mode (Use only when performing self-recording/palyback check.) 1. Entering the continuous recording mode (1) Set a recordable disc in the unit. (2) Press the l m or M L button and display "CREC MODE". (3) Press the ENTER/YES "R" button to change the display to "CREC MID". )" and [z REC] indicator lights up. (4) When access completes, the display changes to "CREC (
Note: The numbers " " displayed shows you the recording position addresses.
2. Changing the parts to be recorded (1) When the ENTER/YES "R" button is pressed during continuous recording, the display changes as below. "CREC MID" t "CREC OUT" t "CREC IN" When pressed another time, the parts to be recorded can be changed. [z REC] indicator goes off. When access completes, the display changes to "CREC ( )" and [z REC] indicator lights up.
Note: The numbers " " displayed shows you the recording position addresses.
(2)
3. Ending the continuous recording mode (1) Press the MENU/NO "R" button. The display changes to "CREC MODE" and [z REC] indicator goes off. (2) Press the A (MD) button and take out the disc.
Note 1: The recording start addresses for IN, MID, and OUT are as follows.
IN : 40h cluster MID : 300h cluster OUT : 700h cluster
Note 2: The MENU/NO "R" button can be used to stop recording anytime. Note 3: Do not perform continuous recording for long periods of time above 5 minutes. Note 4: During continuous recording, be careful not to apply vibration.
4-5-3. Non-Volatile Memory Mode (EEP MODE) This mode reads and writes the contents of the non-volatile memory. It is not used in servicing. If the unit entered this mode accidentally, press the MENU/NO "R" button immediately to release it.
4-6.
FUNCTIONS OF OTHER BUTTONS
Function Contents Sets continuous playback when pressed in the STOP state. When pressed during continuous playback, the tracking servo turns ON/OFF Stops continuous playback and continuous recording The sled moves to the outer circumference only when this is pressed The sled moves to the inner circumference only when this is pressed Switches between the pit and groove modes when pressed Switches the spindle servo mode (CLV-S y CLV-A) Switches the displayed contents each time the button is pressed Ejects the disc Releases the test mode
H S (MD) s (MD) ML lm CLEAR "R" PLAY MODE/TUNING MODE DISP "R" A (MD) REPAET
28
4-7.
TEST MODE DISPLAYS
Each time the DISP "R" button is pressed, the display changes in the following order. 1. Mode display Displays "TEMP ADJUST", "CPLAYMODE", etc. 2. Error rate display Displays the error rate in the following way. C1 = ssss AD = ss C1 = Indicates the C1 error. AD = Indicates ADER. 3. Address display The address is displayed as follows. (MO: recordable disc, CD: playback only disc) Press the CLEAR "R" button to switches between the groove display and pit display. h = ssss s = ssss (MO pit and CD) h = ssss a = ssss (MO groove) h = Indicates the header address. s = Indicates the SUBQ address. a = Indicates the ADIP address.
Note: "" is displayed when servo is not imposed.
Mode display Error rate display Address display
4. Auto gain display (Not used in servicing) The auto gain is displayed as follows. AG = ss/ss[ss] 5. Detrack check display (Not used in servicing) The detrack is displayed as follows. ADR = sssssss 6. IVR display (Not used in servicing) The IVR is displayed as follows. [ss][ss][ss] MEANINGS OF OTHER DISPLAYS
Display H (MD)* S (MD)* zREC* SYNC L.SYNC OVER 1 REPEAT DISC SHUF MONO Contents When Lit During continuous playback (CLV: ON) Tracking servo OFF Recording mode ON CLV low speed mode ABCD adjustment completed Tracking offset cancel ON Tracking auto gain OK Focus auto gain OK High reflection CLV-S CLV LOCK Low reflection CLV-A CLV UNLOCK Tracking offset cancel OFF STOP (CLV: OFF) Tracking servo ON Recording mode OFF CLV normal mode When Off
Auto gain display (Not used in servicing) Detrack check display (Not used in servicing) IVR display (Not used in servicing)
* : Indicate by LED.
29
SECTION 5 ELECTRICAL ADJUSTMENTS
MD SECTION 5-1. PARTS REPLACEMENT AND ADJUSTMENT
· Abbreviation OP : Optical pick-up OWH : Overwrite head · Check and adjust the mechanism deck as follows. The procedure changes according to the part replaced
· Temperature compensation offset check · Laser power check · Traverse check · Focus bias check · C PLAY check · Self-recording/playback check OK
NG Parts Replacement and Repair
Check the sled and spindle mechanisms. Other causes can be suspected.
Has the OWH been replaced?
YES
NO
Has OP, IC171, IC101, or IC121 been replaced?
YES Initial setting of the adjustment value NO
Has OP or IC171 been replaced?
NO
YES IOP information recording (IOP value labeled on OP)
Has IC171 or D101 been replaced?
YES Temperature compensation offset adjustment
NO
· Laser power adjustment · Traverse adjustment · Focus bias adjustment · Error rate adjustment · Focus bias check · Auto gain adjustment
30
Note : About "R" As this unit has only a few buttons, some operations require the use of remote commander (RM-SF3MD/provided with unit: 1-476-068-11) buttons. These operations are indicated as "R" in this manual. Example: MENU/NO "R" ...Press the [MENU/NO] button of the remote commander.
5-2.
PRECAUTIONS FOR CHECKING LASER DIODE EMISSION
To check the emission of the laser diode during adjustments, never view directly from the top as this may lose your eye-sight.
5-3. PRECAUTIONS FOR USE OF OPTICAL PICK-UP (KMS-260B)
As the laser diode in the optical pick-up is easily damaged by static electricity, solder the laser tap of the flexible board when using it. Before disconnecting the connector, desolder first. Before connecting the connector, be careful not to remove the solder. Also take adequate measures to prevent damage by static electricity. Handle the flexible board with care as it breaks easily.
pick-up flexible board
2. Set the test mode when performing adjustments. After completing the adjustments, release the test mode. Perform the adjustments and checks in "group S" of the test mode. 3. Perform the adjustments to be needed in the order shown. 4. Use the following tools and measuring devices. · Check Disc (MD) TDYS-1 (Part No. 4-963-646-01) · Test Disc (MDW-74/AU-1) (Part No. 8-892-341-41) · Laser power meter LPM-8001 (Part No. J-2501-046-A) or MD Laser power meter 8010S (Part No. J-2501-145-A) · Oscilloscope (Measure after performing CAL of prove) · Digital voltmeter · Thermometer · Jig for checking BD board waveform (Part No. : J-2501-149-A) 5. When observing several signals on the oscilloscope, etc., make sure that VC and ground do not connect inside the oscilloscope. (VC and ground will become short-circuited) 6. Using the above jig enables the waveform to be checked without the need to solder. (Refer to Servicing Notes on page 9) 7. As the disc used will affect the adjustment results, make sure that no dusts nor fingerprints are attached to it.
laser tap
Optical pick-up flexible board
Laser power meter
When performing laser power checks and adjustment (electrical adjustment), use of the new MD laser power meter 8010S (Part No. J-2501-145-A) instead of the conventional laser power meter is convenient. It sharply reduces the time and trouble to set the laser power meter sensor onto the objective lens of optical pick-up.
5-4.
PRECAUTIONS FOR ADJUSTMENTS
1. When replacing the following parts, perform the adjustments and checks with a in the order shown in the following table.
Optical Pick-up IC171 1. Initial setting of adjustment value 2. Recording of IOP information (Value on the optical pick-up label) 3. Temperature compensation offset adjustment 4. Laser power adjustment 5. Traverse adjustment 6. Focus bias adjustment 7. Error rate check 8. Auto gain output level adjustment a a BD Board D101 IC101, IC121 IC192 a
×
×
5-5.
CREATING CONTINUOUSLY-RECORDED DISC
a
a
×
×
×
×
a
a
×
×
a
a
× × × × ×
a
a
a
a
a
× × × ×
* This disc is used in focus bias adjustment and error rate check. The following describes how to create a continuous recording disc. 1. Insert a disc (blank disc) commercially available. 2. Press the l m or M L button and display "CREC MODE". 3. Press the ENTER/YES "R" button again to display "CREC MID". Display "CREC (0300)" and start to recording. 4. Complete recording within 5 minutes. 5. Press the MENU/NO "R" button and stop recording . 6. Press the A (MD) button and remove the disc. The above has been how to create a continuous recorded data for the focus bias adjustment/check and MO error rate check.
Note : · Be careful not to apply vibration during continuous recording.
a a a
a a a
a a a
31
5-6.
CHECK PRIOR TO REPAIRS
These checks are performed before replacing parts according to "approximate specifications" to determine the faulty locations. For details, refer to "Checks Prior to Parts Replacement and Adjustments" (See page 11). 5-6-1. Temperature Compensation Offset Check When performing adjustments, set the internal temperature and room temperature of 22 °C to 28 °C. Checking Procedure: 1. Press the l m or M L button to display "TEMP CHECK". 2. Press the ENTER/YES "R" button. 3. "T=@@(##) [OK" should be displayed. If "T=@@ (##) [NG" is displayed, it means that the results are bad. (@@ indicates the current value set, and ## indicates the value written in the non-volatile memory) 5-6-2. Laser Power Check Before checking, check the IOP value of the optical pick-up. (Refer to 8. Recording and Displaying IOP Information) Connection :
laser power meter
Note 1: After step 4, each time the ENTER/YES "R" button is pressed, the display will be switched "LD 0.7 mW $ ", "LD 6.2 mW $ ", and "LD Wp $ ". Nothing needs to be performed here.
5-6-3. Traverse Check
Note 1:Data will be erased during MO reading if a recorded disc is used in this adjustment. Note 2:If the traverse waveform is not clear, connect the oscilloscope as shown in the following figure so that it can be seen more clearly. oscilloscope (DC range)
BD (MD) board CN110 pin 3 (TEO) CN110 pin 1 (VC)
330 k
+
10 pF
Connection :
oscilloscope (DC range) BD (MD) board CN110 pin 3 (TEO) CN110 pin 1 (VC)
+
V: 0.1 V/div H: 10 ms/div
Optical pick-up objective lens
digital voltmeter BD (MD) board CN110 pin 5 (I+3V) CN110 pin 4 (IOP)
+
Checking Procedure: 1. Set the laser power meter on the objective lens of the optical pick-up. (When it cannot be set properly, press the l m button or M L button to move the optical pick-up) Connect the digital voltmeter to CN110 pin 5 (I+3V) and CN110 pin 4 (IOP) on the BD (MD) board. 2. Then, press the l m or M L button to display "LDPWR CHECK". 3. Press the ENTER/YES "R" button once to display "LD 0.9 mW $ ". Check that the reading of the laser power meter become 0.84 to 0.92 mW. 4. Press the ENTER/YES "R" button once more to display "LD 7.0 mW $ ". Check that the reading the laser power meter and digital voltmeter satisfy the specified value. Specified Value: Laser power meter reading : 7.0 ± 0.2 mW Digital voltmeter reading : Value on the optical pick-up label ±10%
(Optical pick-up label) KMS260A 27X40 B0825 lOP=82.5 mA in this case lOP (mA) = Digital voltmeter reading (mV)/1 ()
Checking Procedure: 1. Connect an oscilloscope to CN110 pin 3 (TEO) and CN110 pin 1 (VC) on the BD (MD) board. 2. Load a disc (any available on the market). (Refer to Note 1) 3. Press the M L button to move the optical pick-up outside the pit. 4. Press the l m or M L button to display "EF MO CHECK". 5. Press the ENTER/YES "R" button to display "EFB = MO-R". (Laser power READ power/Focus servo ON/tracking servo OFF/spindle (S) servo ON) 6. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not press the l m or M L button. (Read power traverse checking)
Traverse Waveform
A VC B Specified value : Below 10% offset value Offset value (%) = IA BI X 100 2 (A + B)
7. Press the ENTER/YES "R" button to display "EFB = MO-W". 8. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not press the l m or M L button. (Write power traverse checking)
Traverse Waveform
A VC B Specified value : Below 10% offset value Offset value (%) = IA BI X 100 2 (A + B)
5. Press the MENU/NO "R" button to display "LDPWR CHECK" and stop the laser emission. (The MENU/NO "R" button is effective at all times to stop the laser emission)
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9. Press the ENTER/YES "R" button to display "EFB = MO-P". Then, the optical pick-up moves to the pit area automatically and servo is imposed. 10. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not Press the l m or M L button.
Traverse Waveform
A VC B Specified value : Below 10% offset value Offset value (%) = IA BI X 100 2 (A + B)
5-6-5. C PLAY Check MO Error Rate Check Checking Procedure : 1. Load the test disk (MDW-74/AU-1). 2. Press the l m or M L button to display "CPLAY MODE". 3. Press the ENTER/YES "R" button to display "CPLAY MID". 4. The display changes to "C1 = AD = ". 5. If the C1 error rate is below 80, check that ADER is below 2. 6. Press the MENU/NO "R" button to stop playback, then press the A (MD) button and take out the test disc. CD Error Rate Check Checking Procedure : 1. Load the check disc (MD) TDYS-1. 2. Press the l m or M L button to display "CPLAY MODE". 3. Press the ENTER/YES "R" button twice to display "CPLAY MID". 4. The display changes to "C1 = AD = ". 5. Check that the C1 error rate is below 50. 6. Press the MENU/NO "R" button to stop playback, then press the A (MD) button and take out the check disc. 5-6-6. Self-Recording/playback Check Prepare a continuous recording disc using the unit to be repaired and check the error rate. Checking Procedure : 1. Load a recordable disc (blank disc). 2. Press the l m or M L button to display "CREC MODE". 3. Press the ENTER/YES "R" button to display "CREC MID". 4. When recording starts, lights up [z REC] indicator and display "CREC @@@@" (@@@@ is the address). 5. About 1 minute later, press the MENU/NO "R" button to stop continuous recording. 6. Press the l m or M L button to display "CPLAY MODE". 7. Press the ENTER/YES "R" button to display "CPLAY MID". AD = " will be displayed. 8. "C1 = 9. Check that the C1 error becomes below 80 and the AD error below 2. 10. Press the MENU/NO "R" button to stop playback, then press the A (MD) button and take out the disc.
11. Press the ENTER/YES "R" button to display "EF MO CHECK" The disc stops rotating automatically. 12. Press the A (MD) button and take out the disc. 13. Load the check disc (MD) TDYS-1. 14. Press the l m or M L button and display "EF CD CHECK". 15. Press the ENTER/YES "R" button to display "EFB = CD". Servo is imposed automatically. 16. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not press the l m or M L button.
Traverse Waveform
A VC B Specified value : Below 10% offset value Offset value (%) = IA BI X 100 2 (A + B)
17. Press the ENTER/YES "R" button to display "EF CD CHECK". 18. Press the A (MD) button and take out the check disc. 5-6-4. Focus Bias Check Change the focus bias and check the focus tolerance amount. Checking Procedure : 1. Load the test disk (MDW-74/AU-1). 2. Press the l m or M L button to display "CPLAY MODE". 3. Press the ENTER/YES "R" button twice to display "CPLAY MID". 4. Press the MENU/NO "R" button when "C1 = AD = " is displayed. 5. Press the l m or M L button to display "FBIAS CHECK". 6. Press the ENTER/YES "R" button to display " / c = ". The first four digits indicate the C1 error rate, the two digits after [/] indicate ADER, and the 2 digits after [c =] indicate the focus bias value. Check that the C1 error is below 50 and ADER is below 2. 7. Press the ENTER/YES "R" button to display " / b = ". Check that the C1 error is about 200 and ADER is below 2. 8. Press the ENTER/YES "R" button to display " / a = ". Check that the C1 error is about 200 and ADER is below 2. 9. Press the MENU/NO "R" button, then press the A (MD) button and take out the test disc.
5-7.
INITIAL SETTING OF ADJUSTMENT VALUE
Note: Mode which sets the adjustment results recorded in the non-volatile memory to the initial setting value. However the results of the temperature compensation offset adjustment will not change to the initial setting value. If initial setting is performed, perform all adjustments again excluding the temperature compensation offset adjustment. For details of the initial setting, refer to "5-4. Precautions on Adjustments" and execute the initial setting before the adjustment as required.
Setting Procedure : 1. Press the l m or M L button to display "ADJ CLEAR". 2. Press the ENTER/YES "R" button. "Complete!" will be displayed momentarily and initial setting will be executed, after which "ADJ CLEAR" will be displayed.
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5-8.
RECORDING AND DISPLAYING THE IOP INFORMATION
5-10. LASER POWER ADJUSTMENT
Check the IOP value of the optical pick-up before adjustments. (Refer to 8. Recording and Displaying IOP Information) Connection :
laser power meter
The IOP data can be recorded in the non-volatile memory. The IOP value on the optical pick-up label and the IOP value after the adjustment will be recorded. Recording these data eliminates the need to read the label on the optical pick-up. Recording Procedure : 1. Press the l m or M L button to display "Iop Write", and press the ENTER/YES "R" button. 2. The display becomes Ref=@@@.@ (@ is an arbitrary number) and the numbers which can be changed will blink. 3. Input the IOP value on the optical pick-up label. To select the number : Press the l m or M L button. To select the digit : Press the [SYNC REC] button. 4. When the ENTER/YES "R" button is pressed, the display becomes "Measu=@@@.@" (@ is an arbitrary number). 5. As the adjustment results are recorded for the step 4 value. Leave it as it is and press the ENTER/YES "R" button. 6. "Complete!" will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become "Iop Write". Display Procedure : 1. Press the l m or M L button to display "Iop Read". 2. "@@.@/##.#" is displayed and the recorded contents are displayed. @@.@ indicates the IOP value on the optical pick-up label. ##.# indicates the IOP value after adjustment 3. To end, press the [CD-MD SYNC] button or MENU/NO "R" button to display "Iop Read".
Optical pick-up objective lens
digital voltmeter BD (MD) board CN110 pin 5 (I+3V) CN110 pin 4 (IOP)
+
5-9.
TEMPERATURE COMPENSATION OFFSET ADJUSTMENT
Save the temperature data at that time in the non-volatile memory as 25 °C reference data.
Note : 1. Usually, do not perform this adjustment. 2. Perform this adjustment in an ambient temperature of 22 °C to 28 °C. Perform it immediately after the power is turned on when the internal temperature of the unit is the same as the ambient temperature of 22 °C to 28 °C. 3. When D101 has been replaced, perform this adjustment after the temperature of this part has become the ambient temperature.
Adjusting Procedure : 1. Set the laser power meter on the objective lens of the optical pick-up. (When it cannot be set properly, press the l m or M L button to move the optical pick-up) Connect the digital voltmeter to CN110 pin 5 (I+3V) and CN110 pin 4 (IOP) on the BD (MD) board. 2. Press the l m or M L button to display "LDPWR ADJUST". (Laser power : For adjustment) 3. Press the ENTER/YES "R" button once to display "LD 0.9 mW $ ". 4. Press the l m or M L button so that the reading of the laser power meter becomes 0.85 to 0.91 mW. Press the ENTER/YES "R" button after setting the range knob of the laser power meter, and save the adjustment results. ("LD SAVE $ " will be displayed for a moment) 5. Then "LD 7.0 mW $ " will be displayed. 6. Press the l m or M L button so that the reading of the laser power meter becomes 6.9 to 7.1 mW, press the ENTER/YES "R" button to save it.
Note: Do not perform the emission with 7.0 mW more than 15 seconds continuously. 7. Then, press the l m or M L button to display
Adjusting Procedure : 1. Press the l m or M L button to display "TEMP ADJUST". 2. Press the ENTER/YES "R" button to select the "TEMP ADJUST" mode. 3. "TEMP = [OK]" and the current temperature data will be displayed. 4. To save the data, press the ENTER/YES "R" button. When not saving the data, press the MENU/NO "R" button. 5. When the ENTER/YES "R" button is pressed, "TEMP = SAVE" will be displayed and turned back to "TEMP ADJUST" display then. When the MENU/NO "R" button is pressed, "TEMP ADJUST" will be displayed immediately. Specified Value : The "TEMP = " should be within "E0 - EF", "F0 - FF", "00 0F", "10 - 1F" and "20