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HCD-PX333
SERVICE MANUAL AEP Model
UK Model
Ver 1.0 2001. 06
E Model
Australian Model
HCD-PX333 is the Amplifier, CD player, MD
Deck and Tuner section in CMT-PX333.
Model Name Using Similar Mechanism HCD-MD595
US and foreign patents licensed from Dolby
Laboratories.
CD CD Mechanism Type CDM55A-21BD53
Section Base Unit Name BU-21BD53
Optical Pick-up Name OP Assy (A-MAX. 2)
Model Name Using Similar Mechanism HCD-MD595
MD
MD Mechanism Type MDM-7X2A
Section
Optical Pick-up Name KMS-262
SPECIFICAT
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HCD-PX333 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
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HCD-PX333 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Display Details of History op rec tm Displays the recording time. Displayed as “rssmin”. 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. op play tm Displays the playback time. Displayed as “pssssssh”. The displayed time is the total of the actual play time. The time is displayed in hexadecimal digits from 0
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HCD-PX333 Table of Error Codes Error Code Details of Error 10 Loading failed 12 Loading switch combination is illegal 20 Head of PTOC could not be read within the specified time 21 Head of PTOC could be read but its content is erroneous 22 Access to UTOC could not be made within the specified time 23 UTOC could be not read within the specified time 24 Content of UTOC is erroneous 30 Playing could not start 31 Content of sector is erroneous 40 Cause of retry occurred during normal recording 41 D-
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HCD-PX333 4. Display of No Disc Error History CD SECTION Procedure: 1. In the CD test mode menu, press the [.m TUNING-], PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNC- [ TUNING+] M> button to display “dvt ECODE BU”. TION (ERROR HISTORY DISPLAY MODE) 2. Press the Z (CD) button to display as bellow. 1. To Enter The CD Test Mode Procedure: Display 1. Press the ?/1 button to turn the power on. E**D******** 2. Press the [FUNCTION] button to set the CD function. 3. Press three butto
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HCD-PX333 TABLE OF CONTENTS MODEL IDENTIFICATION — Back panel — SELF-DIAGNOSIS FUNCTION ..................................... 2 PART No. 1. SERVICING NOTES ............................................... 7 2. GENERAL ................................................................... 17 3. DISASSEMBLY ......................................................... 19 4. TEST MODE ............................................................... 31 5. ELECTRICAL ADJUSTMENTS MD Section ...............
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HCD-PX333 SECTION 1 SERVICING NOTES Notes on chip component replacement NOTES ON HANDLING THE OPTICAL PICK-UP • Never reuse a disconnected chip component. BLOCK OR BASE UNIT • Notice that the minus side of a tantalum capacitor may be damaged by heat. The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the Flexible Circuit Board Repairing charged electrostatic load, etc. on clothing and the human body. • Keep
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HCD-PX333 SERVICE POSITION • In checking the MD mechanism deck section (MDM-7X2A), prepare two extension jigs (Part No. J-2501-100-A: 1.00 mm 27 core and Part No. J-2501-198-A: 1.00 mm 17 core). • In checking the CD mechanism deck section (CDM55A-21BD53), prepare extension jig (Part No. J-2501-075-A: 1.00 mm 21 core.) Connect extension jig (J-2501-198-A) to the BD (MD) board (CN103) and MD DIGITAL board (CN1004). MD mechanism deck section Connect extension jig (J-2501-100-A) to the (MDM-7X2A) B
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HCD-PX333 JIG FOR CHECKING BD (MD) BOARD WAVEFORM The special jig (J-2501-196-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. 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) GND : Ground TE : Tracking error signal (Traverse adjustment) FE : Focus error signal VC : Reference level for checkin
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HCD-PX333 Note 1:About “R” As this unit has only a few buttons, some operations require the use of remote commander (RM-S55EN/provided with unit: 1-476-664-21) 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 ?/1 button to turn the power off, and retry to enter the MD test mode. IOP DATA RECO
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HCD-PX333 CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS IN MD 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 Measure if unsatisfactory (Unsatisfactory if specified value is not satisfied) Laser power check • 0.9 mW power • Clean the optical pick-up (6-2 : See page 40) Specified value : figure1 • Adjust again • 8.4 mW power • Repl
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HCD-PX333 RETRY CAUSE DISPLAY MODE IN MD • In this test mode, the causes for retry of the unit during recording can be displayed on the liquid crystal display. 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
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HCD-PX333 Reading the Retry Cause Display Higher Bits Lower Bits Hexa- Details decimal Hexadecimal 8 4 2 18421 Bit b7 b6 b5 b4 b3 b2 b1 b0 When 0 When 1 Binary 0 0 0 00001 01 Emphasis OFF Emphasis ON 0 0 0 00010 02 Monaural Stereo 0 0 0 00100 04 This is 2-bit display. Normally 01. 0 0 0 01000 08 01:Normal audio. Others:Invalid 0 0 0 10000 10 Audio (Normal) Invalid 0 0 1 00000 20 Original Digital copy 0 1 0 00000 40 Copyright No copyright 1 0 0 00000 80 Write prohibited Write allowed Reading the
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HCD-PX333 CD SECTION CD AGING MODE Procedure: 1. Press the ?/1 button to turn the power on. 2. Press the [FUNCTION] button to set the CD function, and press the Z (CD) button to insert a disc. .m 3. Press three buttons of x (CD) , [ TUNING-] and x (MD) simultaneously. 4. The set displays “AGING SEL=00”. Between it is displayed, press the Z (CD) button to start CD aging mode. 5. The sequence during the CD aging mode is following as below. .m Note: If the triple button pressing failed
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HCD-PX333 CD-TEXT TEST DISC This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube. The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display. To check, perform the following procedure. Checking Method: 1. Press the ?/1 button to turn the power on, set the disc to the disc table with the “test disc” label facing up, and chuck the disc. 2. Press the [CD ] N X button and playback the disc. 3. The followin
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HCD-PX333 Table 2: CD-TEXT TEST DISC Recorded Contents and Display (In this unit, some special characters cannot be displayed. This is not a fault) TRACK Recorded contents Display No. 42 ! ” #$%& ´ (21h to 27h)1kHz 0dB L&R T All the same 43 ( ) + , – . / (28h to 2Fh) T All the same * 44 0 1234567 (30h to 37h) T All the same 45 8 9 : ; < = > ? (38h to 3Fh) T All the same T All the same 46 @A B C D E F G (40h to 47h) 47 H I J K L M N O (48h to 4Fh) T All the same 48 P Q R S T U VW (50h to 57h) T A
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HCD-PX333 SECTION 2 This section is extracted GENERAL from instruction manual. Parts Identification The items are arranged in alphabetical order. Refer to the pages indicated in parentheses for details Main unit 1 2 3 4 ws 5 wa 6 w; 7 8 ql 9 qk qj qhqgqfqdqsqa q; CD disc tray 9 (8) PLAY MODE qg (9, 13, 24) BUTTON DESCRIPTIONS CD SYNC HIGH q; (17) REC/REC IT qs (18) CD SYNC NORMAL qa (17) REC MODE qd (20) ?/1 1 CD N X ws (9) REPEAT qf (9, 14) ZMD 4 Display window 3 STEREO/MONO ql (35) x (MD) 5
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Parts Identification HCD-PX333 Remote Control w; 1 ql 2 qk 3 qj 4 5 6 7 qh qg 8 qf 9 qd qs q; qa CLEAR 6 (11, 15, 26, 36) PLAY MODE qk (9, 13, 24) BUTTON DESCRIPTIONS CLOCK/TIMER SELECT ql PRESET EQ qa (37) (38) REPEAT qk (9, 14) ?/11 CLOCK/TIMER SET ql (7, 38) SCROLL 4 (12, 26) M/CURSORt 7 DBFB qa (37) SELECT 8 (12, 25) >/+ 7 DISPLAY qj (8, 11, 15) SLEEP w; (37) N (MD) qd ENTER/YES qg (7, 10, 14, 23, STEREO/MONO 2 (35) N (CD) qd 25, 34, 38) TIME qj (8, 11, 15) X qd FUNCTION qf (9, 13, 18, 25, 4
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HCD-PX333 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. SET CASE (Page 20) FRONT PANEL SECTION BACK PANEL, (Page 20) SP BOARD, TUNER (Page 22) JACK BOARD, BL BOARD, VOL BOARD (Page 21) REC BOARD, VOL BOARD (Page 21) AMP BOARD MAIN BOARD, POWER TRANSFORMER, (Page 23) POWER BOARD DC FAN (Page 23) (Page 22) CD MECHANISM DECK (CDM55A-21BD53) (Page 27) HOLDER (BU) ASSY MD DIGITAL BOARD TRAY (CDM), MD MECHANISM DECK (Page 28) (Page 28) LOADING BOARD (MDM-7X2A) (Page 2
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HCD-PX333 3-1. CASE 4 1 two screws (CASE3 TP2) 5 case 3 3 2 two screws (CASE3 TP2) 3-2. FRONT PANEL SECTION 4 wire (flat type)(23 core) (CN100) 5 front panel section 3 2 three claws 1 three screws (+BVTT3 × 6) 20
