Canadian Model AEP Model UK Model Ver 1.1 2001. 06 E Model Australian Model Tourist Model HCD-MD333 is the amplifier, CD, MD and tuner section in DHC-MD333. Model Name Using Similar Mechanism Mechanism Type CDM13C-5BD19 SECTION Base Unit Type BU-5BD19...
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The self-diagnosis function consists of error codes for users 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 users, refer to the following box in the instruction manual.
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Displays the recording time in the form of “rππππππh”. The displayed time is the total number of hours the laser is high power, which is about one-fourth of the actual recording time. The time is displayed in decimal digits between 0h to 65535h.
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• Keep the temperature of 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.
3-11. Slider Complete ASSY ............15 3. Measuring the voltage drop across a resistor by means of a VOM 3-12. Shutter ASSY ..............16 or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale.
POWER SUPPLY IS OFF OR BASE UNIT 1. Insert the tweezers to a hole on bottom of the chassis as shown a The laser diode in the optical pick-up block may suffer electrostatic figure, then tern fully it toward direction 2.
SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-1. CASE 3 Case 1 Two screws (CASE3 TP2) 2 Two screws (CASE3 TP2) 3-2. FRONT PANEL/MD MECHANISM DECK SECTION 7 Six screws (BVTT3x6) 8 Wire 9 MD mechanism...
3-8. SUB CHASSIS 3 Two step screws 1 Two step screws 2 Two insulators 4 Two insulators Part A Part A Part A 5 Sub chassis Take care so that the part A may be right position when installing. – 13 –...
3-9. OPTICAL PICK-UP (KSS-213B/K-N) 4 Remove the optical pick-up (KSS-213B/K-N) in the direction of the arrow C . 3 Wire (flat type)(16 core) (CNU101) 1 Move the claw in the direction of the arrow A . 2 Remove the sled shaft in the BD board (CD) direction of the arrow B .
3-11. SLIDER COMPLETE ASSY 3 Set the shaft of gear (LB) to be at the Claw position in the figure. Claw 45˚ 4 Remove the slider complete assembly 1 Special screw in the direction of arrow with putting out 2 Retainer (gear) (M1.7x1.4)
Shaft (shutter) B Hole B 3 Shutter assembly Shaft (shutter) A Hole A When installing, install the shaft (shutter) A into the hole as show in the figure before installing the shaft (shutter) B into the hole B. – 16 –...
However, once a button is pressed, it is no longer taken into account. “JOG=” Value increases like 1, 2, 3 ... if rotating VOLUME knob in clockwise direction, or it decreases like 10, 9, 8 ... if rotating in counterclockwise direction.
With the power off, press the ^ (MD) button while pressing the PLAY MODE button. 5-3. EXITING THE TEST MODE Press the REPEAT button. The STANDBY state will be set and the test mode will be cleared. 5-4. BASIC OPERATIONS OF THE TEST MODE All operations are performed using the VOLUME knob, p (CD) button, and ^ (CD) button.
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There are altogether 26 test modes, shown in the following table. Rotating the VOLUME knob to the right switches to the mode below the current mode in the table while rotating to the left switches to the mode above. Each time the ^ (CD) button is pressed, the display changes in the following order;...
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2 Press the 6 (MD) button to remove the disc. Note : The playback start addresses for IN, MID, and OUT are as follows. To display the playback position address on the display, press the 1/u button to display “CPLAY ( )”.
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5-7. DISPLAYS DURING TEST MODE The display changes according to the following sequence each time the 1/u button is pressed. 1. Mode display “TEMP ADJUST” and “CPLAYMODE” are displayed. Mode display 2. Error rate display Error rate display The error rate is displayed as follows.
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In this mode, MD and CD operations are performed alternately according to the following sequence. Aging will be carried out continuously unless an error occurs. If an error occurs, the status and number of cycles are displayed alternately, and operations stop. (Refer to Table 1.) Aging Mode Sequence...
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4. To end, press the p (CD or MD) button. *Note 1: Any CD can be used, but one with a short last track is recommended. The time of one aging cycle will be longer if the last track is long.
Specifications: 3) Perform the adjustments in the order shown. TEMP= should be E0 to EF. F0 to FF, 00 to 0F, 10 to 1F and 20 4) Use the following tools and measuring devices. to 2F. • Check disc (MD) TDYS-1 (Parts No.
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(Read power traverse adjustment) 4. Rotate the VOLUME knob so that the laser power meter reads 0.86 to 0.92 mW. Set the range knob of the laser power meter to (Traverse Waveform) 10 mW, press the p (CD) button, and save the adjustment results in the non-volatile memory.
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10. Press the p (CD) button to display “ ”. 14. Load the check disc (MD) TDYS-1. 11. Check that the C1 error rate is below 50 and that ADER is 00. 15. Press the p (CD) button to display “EFB = CD”. The servo and press the p (CD) button.
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9. Press the ^ (CD) button, press the 6 (MD) button next, and remove the continuously recorded disc. Note 1 : If the C1 error is above 220 or ADER is above 00 only for point a (step 8 above) and point b (step 7 above), the focus bias may not adjusted properly.
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6-11. ADJUSTING POINTS AND CONNECTING POINTS [BD (MD) BOARD] (SIDE A) D101 IC192 [BD (MD) BOARD] (SIDE B) TP (IOP) TP (I + 3V) Q163 IC316 IC171 (VC) IC101 (TEO) Q102 IC121 – 28 –...
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5. Check the oscilloscope waveform (S-curve) is symmetrical be- oscilloscope tween A and B. And confirm peak to peak level within 2.4 ± 0.7 BD (CD) board Vp-p. TP (RF) S-curve waveform TP (VC) –...
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RV102 3. Put disc (YEDS-18) in to play the number five track. 4. Press the “P (Pause)” button. (Becomes the 1 track jump mode) 5. Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0Vdc, and check this level.
HCD-MD333 – MD SECTION – OVER WRITE HEAD DRIVE DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR EFM/ACIRC ENCODER/DECODER, SHOCK-PROOF MEMORY CONTROLLER, IC181 (2/4) IC181 (3/4) ATRAC ENCODER/DECODER, 2M-BIT DRAM • SIGNAL PATH IC121 HR901 : PB (MD) SCTX OVER WRITE...
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(The other layers' patterns are not indicated.) Caution: 5.1 Vp-p Pattern face side: Parts on the pattern face side seen from the (Side B) pattern face are indicated. Parts face side: Parts on the parts face side seen from the 22.8 s...
HCD-MD333 7-5. SCHEMATIC DIAGRAM – MD (1/3) SECTION – • See page 40 for Waveforms. • See page 84 for IC Block Diagrams. • See page 51 for Printed Wiring Board. • See page 88 for IC Pin Functions. (Page 48)
HCD-MD333 7-6. SCHEMATIC DIAGRAM – MD (2/3) SECTION – • See page 40 for Waveforms. • See page 51 for Printed Wiring Board. • See page 85 for IC Block Diagrams. • See page 89 for IC Pin Functions. (Page 45)
HCD-MD333 7-11. SCHEMATIC DIAGRAM – MAIN (1/3) SECTION – • See page 86 for IC Block Diagrams. • See page 40 for Waveforms. • See page 94 for IC Pin Functions. • See page 59 for Printed Wiring Board. (Page 73)
User comparator input terminal Not used (fixed at “L”) ADDC Connected to the external capacitor for cutting the low band of the ADIP amplifier User operational amplifier output terminal Not used (open) User operational amplifier inversion input terminal Not used (fixed at “L”)
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DVDD — Power supply terminal (+3.3V) (digital system) Address signal output to the external D-RAM (IC124) * I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O. – 89 –...
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Serial clock signal output to the CXA2523AR (IC101) DTRF Writing data output to the CXA2523AR (IC101) * I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O. – 90 –...
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Pin No. Pin Name Function Control signal output to the reference voltage generator circuit for the laser automatic APCREF power control LDDR PWM signal output for the laser automatic power control Not used (open) TRDR Tracking servo drive PWM signal (–) output to the BH6511FS (IC152)
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REMCON Remote control signal input De-emphasis control signal output to the AK4520 (IC201) BYTE External data bus line byte select signal input terminal “L”:16bit “H”: 8bit (fixed at “L”) CNVSS Processor mode select signal input terminal (fixed at “L”) XIN-T Sub system clock input tarminal Not used (fixed at “L”)
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MD loading-in signal output to LB1830M (IC153) LDOUT MD loading-out signal output to LAB1830M (IC153) LD-LOW Loading motor voltage control signal output to the loading motor driver PROTECT MD PROTECT switch (S683) detect signal input terminal REFLECT MD REFLECT switch (S682) detect signal input terminal...
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Serial data latch pulse signal output to the PCM1710U (IC104) SENCE Internal status (SENSE) signal input from the CXD2507AQ (IC103) Test mode input terminal “H’: normal (fixed at “H” in this set) IN-SW Disc tray close complete signal input terminal “L”: Completed OUT-SW Disc tray open complete signal input terminal “L”...
EXPLODED VIEWS NOTE: The components identified by • Abbreviation • Items marked “*” are not stocked since they are mark ! or dotted line with mark CND : Canadian model seldom required for routine service. Some delay ! are critical for safety.
EXCEPT US,CND,AR CNP1601 Les composants identifiés par une The components identified by mark ! or dotted line with mark marque ! sont critiques pour la ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une specified.
HR901 Les composants identifiés par une The components identified by marque ! sont critiques pour la mark ! or dotted line with mark ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une specified.
(including r C) Les composants identifiés par une The components identified by marque ! sont critiques pour la mark ! or dotted line with mark ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une specified.
! are critical for safety. uPC...: µ PC..., uPD...: µ PD... • -XX, -X mean standardized parts, so they may have Replace only with part number • CAPACITORS some difference from the original one.
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6.3V C572 1-126-960-11 ELECT Les composants identifiés par une The components identified by mark ! or dotted line with mark marque ! sont critiques pour la ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une specified.
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1-247-887-00 CARBON 220K 1/4W Les composants identifiés par une The components identified by mark ! or dotted line with mark marque ! sont critiques pour la ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une specified.
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CN1600 1-564-321-00 PIN, CONNECTOR 2P 1-783-113-11 WIRE (FLAT TYPE) (25 CORE) Les composants identifiés par une The components identified by mark ! or dotted line with mark marque ! sont critiques pour la ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une specified.
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7-685-650-79 SCREW +BVTP 3X16 TYPE2 IT-3 7-685-871-01 SCREW +BVTT 3X6 (S) 7-685-850-04 SCREW +BVTT 2X3 (S) 7-685-851-04 SCREW +BVTT 2X4 (S) 7-627-553-17 PRECISION SCREW +P 2X2 TYPE 3 7-627-552-27 SCREW,PRECISION +P 1.7X2 7-624-105-04 STOP RING 2.3, TYPE -E 7-685-234-19 SCREW +KTP 2.6X8 TYPE2NON-SLIT 7-621-775-10 SCREW +B 2.6X4...
HCD-MD333 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001.06...