HCD-SD1 SERVICE MANUAL AEP Model UK Model E Model HCD-SD1 is the amplifier, CD and tuner section in CMT-SD1.
Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. This caution label is located inside the unit. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement • Never reuse a disconnected chip component.
TABLE OF CONTENTS NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. SERVICING NOTE .......................................................... 4 2. GENERAL .......................................................................... 7 3. DISASSEMBLY 3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. 3-8. Loading Panel ....................................................................... 8 Glass ASSY ........................................................................... 8 Front Panel .......................
SECTION 1 SERVICING NOTE OPENING THE DISC TRAY WHEN POWER IS OFF 2 Open the glass door, and pull out the loading panel. 1 Using a thin screwdriver, rotate the internal cam in the arrow direction completely. ATTACHING THE GLASS ASSEMBLY • Attach according to steps 1 to 4. 2 Pull up the glass door, in the arrow direction. 1 1 4 Screw (PTP 2.6x6) 3 Bracket (shaft) (Bottom side) –4– When securing this part, position at the center to allow some play.
POSITIONS FOR SERVICING THE CONNECTOR BOARD, SUB-TRANS BOARD, CHEMI-CON BOARD, AND AMP BOARD 1 Remove the four screws securing the upper cover, and remove the upper cover. 2 Remove the loading panel. (Refer to SECTION 3 DISASSEMBLY.) 3 Remove the four screws A securing the MAIN board, five screws B securing the rear panel, two flat cables (CN701, CN702), and open the MAIN board as shown in the figure. 4 Remove the two screws C securing the heat sink, and remove the AMP board and CHEMI-CON board.
POSITION FOR SERVICING THE CD MECHANISM DECK 1 Remove the four screws securing the upper cover, and remove the upper cover. 2 Remove the loading panel. (Refer to SECTION 3 DISASSEMBLY.) 3 Remove the four screws A securing the MAIN board, five screws B of the rear panel, and flat cables (CN701, CN702), and remove the MAIN board. 4 Remove the two screws D securing the SUB-TRANS board, and remove the SUB-TRANS board. 5 Remove the two screws F securing the REG board.
SECTION 2 GENERAL Front Panel 2 1 3 15 14 4 13 12 11 10 9 8 7 6 5 Location of Parts and Controls 1 2 3 4 5 1/u (Power) button CD disc tray § button VOLUME dial ±/)/TUNING + button 6 7 8 9 10 ≠/0/TUNING – button π button fl button TUNER/BAND button FUNCTION button 11 12 13 14 15 DISPLAY button PHONES jack t indicator u indicator Display window This section is extracted from instruction manual.
SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-1. LOADING PANEL 1 Turn ON the power, and press the EJECT button to open the tray. 2 Remove the loading panel in the arrow direction. 3 Press the EJECT button to close the tray. • If the power cannot be turned ON, refer to “Opening the Disc Tray When the Power is OFF” of “Service Note”, and open the tray. Loading panel Power button Eject button 3-2. GLASS ASSY 4 3 4 1 Screw (PTP2.
3-3. FRONT PANEL 4 Flat type wire (11core) (CN702) 6 Front panel 3 2 Three claws 5 Flat type wire (13core) (CN701) 1 Three screws (BVTP3x8) 3-4.
3-5. CD MECHANISM DECK 6 Three screws (BVTP3x8) 7 Dust cover 9 CD mechanism deck 8 Two screws (BVTP3x8) 3 Connector (CN942) 5 REG board 1 Two screws (BVTP3x8) 2 Connector (CN945) 4 Connector (CN994) 3-6.
3-7. DISC TABLE 3 Holder (MG) assembly 1 Screw (BV3x8) 2 Screw (BV3x8) 4 Pull out the disc table. 3-8. OPTICAL PICK-UP 4 Remove the optical pickup in the arrow direction C. C 3 Flat type wire (16 core) (CNU101) 1 Move the claw in the arrow A direction. B A 2 Remove the sled shaft in the arrow direction B.
SECTION 4 SERVICE MODE Key Check Mode for Complete Lighting of LED/Fluorescent Display Tube • Perform this mode to analyze and check malfunctions such as display defects and when buttons do not work. Procedure: 1. Press the 1/u button to turn on the power. 2. Press the DISPLAY button and ^ button together. 3. All LEDs and the fluorescent display tube will light up completely. 4.
SECTION 5 TEST MODE AGING MODE This unit is equipped with an aging mode. Use this mode for analyzing defects and for checks after completing repairs. After repairs, perform aging 100 times and check that the unit is normal. The aging mode is executed in the following sequence. The aging mode will continue as long as the unit is normal. If the unit becomes abnormal, it will display the state and number of cycles, and operations will stop. (Refer to Table 1.
SECTION 6 ELECTRICAL ADJUSTMENTS S Curve Check CD SECTION Note: 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10MΩ impedance. 4. Clean the object lens by an applicator with lens cleaning liquid when the signal level is low than specified value with the following checks. 5. Adjust the focus bias adjustment when optical block is replaced.
E-F Balance (1 Track Jump) Check (Without remote commander) Adjustment Location: [BD (CD) BOARD] — Component Side — oscilloscope RF BD (CD) board + – RV101 IC101 TEI RV103 Procedure : 1. Connect oscilloscpe to test point TP (TEO) on BD board. 2. Turn Power switch on. 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.
SECTION 7 DIAGRAMS 7-1.
HCD-SD1 7-2.
HCD-SD1 – MAIN SECTION – ANTENNA SOUND PROCESSOR IC101(1/2) TUNER UNIT TUNER L-OUT AM R-OUT STEREO BS/CS R-CH MD ST CD TUN TUNED MUT MUTING DO DO CL CL DI DI CE CE FM-DET-OUT FM 75Ω 5 15 BASS/ TREBLE AMP • VOLUME 6 7 R-CH DEFB SW Q121 8 16 18 27 DBFB 25 AMP 10 R-CH + R-CH – 8 – R-CH +8dB AMP IC103 35 R-CH 3 1 5 7 MUTE Q505 J101(2/2) L MUTE Q111 R-CH L R + RELAY SW Q502,503 RELAY DRIVE Q504 FAN-DRIVE Q551–553 R-CH FAN RELAY SW Q501 R-CH J667 L R-CH SWITCH IC102
HCD-SD1 WAVEFORMS – BD SECTION – THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) – MAIN SECTION – 1 1 1.3 ± 0.3 Vp-p 4.3 Vp-p For schematic diagrams. Note: • 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 Ω and 1/4 W or less unless otherwise specified. ¢ • : internal component. • 2 : nonflammable resistor.
HCD-SD1 7-3. SCHEMATIC DIAGRAM – BD SECTION – • See page 22 for Waveforms. • See page 51 for IC Block Diagrams. (Page 29) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : Stop ( ) : CD (PLAY) * : Can not be measured.
HCD-SD1 7-4. PRINTED WIRING BOARD – BD SECTION – • See page 16 for Circuit Boards Location. (Page 32) OPTICAL PICK-UP BLOCK KSS-213BA/S-N • Semiconductor Location • Semiconductor Location Ref. No. Location Ref. No.
HCD-SD1 7-5. SCHEMATIC DIAGRAM – MAIN (1/2) SECTION – • See page 22 for Waveforms. • See page 31 for Printed Wiring Board.
HCD-SD1 7-6. SCHEMATIC DIAGRAM – MAIN (2/2) SECTION – • See page 22 for Waveforms. • See page 31 for Printed Wiring Board. • See page 53 for IC Block Diagrams. • See page 54 for IC Pin Functions.
HCD-SD1 7-7. PRINTED WIRING BOARD – MAIN SECTION – • See page 16 for Circuit Boards Location. (Page 41) (Page 45) (Page 26) (Page 46) • Semiconductor Location Ref. No.
HCD-SD1 7-9. PRINTED WIRING BOARD – SUB SECTION – • See page 16 for Circuit Boards Location. 7-8. SCHEMATIC DIAGRAM – SUB SECTION – (Page 49) (Page 47) DTC114ESA 11EQS04 11EQS04 11EQS04 (Page 43) DTA114ESA-TP 11EQS04 11ES2-NTA2B 11ES2NTA2B DTA114ESA-TP 11ES2NTA2B 11ES2-NTA2B (Page 45) • Semiconductor Location – 33 – Ref. No. Location Ref. No.
HCD-SD1 7-10.
HCD-SD1 7-11. PRINTED WIRING BOARD – PANEL SECTION – • See page 16 for Circuit Boards Location. (Page 32) (Page 32) E • Semiconductor Location Ref. No.
HCD-SD1 7-12.
HCD-SD1 7-13. PRINTED WIRING BOARD – AMP SECTION – • See page 16 for Circuit Boards Location. • Semiconductor Location (Page 50) (Page 31) (Page 45) – 41 – – 42 – Ref. No.
HCD-SD1 7-14.
HCD-SD1 7-15. PRINTED WIRING BOARD – CONNECTOR SECTION – • See page 16 for Circuit Boards Location. (Page 31, 32) • Semiconductor Location Ref. No.
HCD-SD1 7-16.
HCD-SD1 7-17. PRINTED WIRING BOARD – REG SECTION – • See page 16 for Circuit Boards Location. AC OUTLET MDS-SD1 ONLY UNSWITCHED 200W MAX NOT REPLACEABLE: BUILT IN TRANSFORMER (Page 32) (Page 32) (Page 34) (Page 42) • Semiconductor Location – 49 – – 50 – Ref. No.
HCD-SD1 PHD2 PHD1 PHD LD RF M RF O RF I CP CB CC1 CC2 FOK VCC 36 35 34 33 32 31 30 29 28 27 26 25 15 OP– 16 OP+ 17 OUT3A 18 OUT3B VCC DRIVE BUFFER DRIVE BUFFER 19 IN3A 20 IN3B 21 VCC 22 VCC 23 VC 24 IN4B IC101 CXA1782BQ 25 IN4A 27 OUT4A 28 GND • BD section 26 OUT4B IC102 BA6397FP 7-18. IC BLOCK DIAGRAMS DRIVE BUFFER – + + + THERMAL SHUT DOWN – + LEVELS DRIVER MUTE MIRR RF IV AMP1 IIL 24 SENS TTL 23 C.
IC104 PCM1710U-R LRCIN 1 28 ML/DSD INPUT INTERFACE DIN 2 DIGITAL FILTER 27 MC/DM2 MODE CONTROL BCKIN 3 CLKO 26 MD/DM1 TIMING CONTROL 4 25 MUTE XTI 5 24 MODE XTO 6 23 CKSL NOISE SHAPER DGND 7 22 DGND VDD 8 21 VDD 5-LEVEL DAC RIGHT 5-LEVEL DAC LEFT LOW-PASS FILTER RIGHT LOW-PASS FILTER LEFT VCC2R 9 GND2R 10 20 VCC2L 19 GND2L EXT1R 11 18 EXT1L 3-STAGE AMP LEFT 3-STAGE AMP RIGHT EXT2R 12 17 EXT2L VOUTR 13 16 VOUTL 15 VCC1 GND1 14 – MAIN Section – IC351 LB1641 T.S.D O.C.
7-19. IC PIN FUNCTIONS • IC701 System Control (µPD780018AYGF-015-3BA) (MAIN Board) Pin No. 1 Pin Name BD POWER 2 PANEL SW 3 to 7 8 I/O O I Function CD power control pin, “H”:CD POWER ON Front cover open/close switch, “H”:Open glass door, “L”:Close glass door – I Not used AC.
Pin No. 61 Pin Name LOAD IN I/O O Function Tray loading motor control signal, “L”:Loading 62 LOAD OUT O Tray loading motor control signal, “L”:When OPEN 63 BD.
SECTION 8 EXPLODED VIEWS NOTE: • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts with no reference number in the exploded views are not supplied. The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. • Hardware (# mark) list and accessories and packing materials are given in the last of this parts list.
8-2. CHASSIS SECTION not supplied 55 not supplied #1 #2 #1 66 not supplied T991 65(UK,HK) 64 #2 56 #2 67 51 #1 #1 CN904 not supplied #1 57 #1 #5 58 M551 #2 #4 #2 CDM13B-5BD19 #2 #2 #2 54 #2 #4 53 61 59 not supplied 60 52 62 63 not supplied #1 #2 not supplied #2 #2 63 #2 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No.
8-3. MECHANISM DECK SECTION (CDM13B-5BD19) #2 not supplied 211 #2 212 #6 207 208 205 #2 #2 209 206 210 #7 #8 214 213 219 204 218 215 203 202 BU-5BD19 215 #6 M904 216 216 201 not supplied 217 Ref. No. Part No.
8-4. BASE UNIT SECTION (BU-5BD19) 255 256 259 257 M101 253 254 M102 254 258 252 251 Ref. No. Part No. Description 251 * 252 253 254 ! 255 4-951-620-01 A-4673-402-B 4-917-565-01 4-951-940-01 8-848-379-31 SCREW (2.6X8), +BVTP BD BOARD, COMPLETE SHAFT, SLED INSULATOR (BU) OPTICAL PICK-UP KSS-213B/S-N 256 Remark The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No.
AMP SECTION 9 ELECTRICAL PARTS LIST BD Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. When indicating parts by reference number, please include the board name. Ref. No. Part No. * 1-671-611-11 AMP BOARD ********* • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set.
BD Ref. No. Part No. Description Remark Ref. No. < CONNECTOR > CNU101 1-770-014-11 CONNECTOR, FFC/FPC 16P CNU102 1-770-013-11 CONNECTOR, FFC/FPC 19P < IC > IC101 IC102 IC103 IC104 8-752-074-34 8-759-291-06 8-752-372-94 8-759-185-29 IC IC IC IC CXA1782BQ BA6397FP CXD2507AQ PCM1710U-B < TRANSISTOR > Q101 Q102 Q103 8-729-010-08 TRANSISTOR MSB710-R 8-729-424-08 TRANSISTOR UN2111 8-729-421-22 TRANSISTOR UN2211 CHEMI-CON Part No.
CHEMI-CON Ref. No. Part No. CONNECTOR LOADING HP Description Remark Ref. No. L861 < RESISTOR > R505 R506 R551 R552 R553 1-216-097-91 1-216-085-00 1-216-049-91 1-216-097-91 1-247-887-00 RES,CHIP METAL CHIP RES,CHIP RES,CHIP CARBON 100K 33K 1K 100K 220K 5% 5% 5% 5% 5% 1/10W 1/10W 1/10W 1/10W 1/4W R554 R821 R822 R871 R872 1-216-065-91 1-260-089-11 1-260-089-11 1-260-089-11 1-260-089-11 RES,CHIP CARBON CARBON CARBON CARBON 4.
MAIN Ref. No. Part No.
MAIN Ref. No. CN702 CN703 CN704 CN705 Part No. Description 1-785-462-11 1-770-380-11 1-770-380-11 1-695-342-31 SOCKET, CONNECTOR (NON-ZIF)11P CONNECTOR, BOARD TO BOARD 8P CONNECTOR, BOARD TO BOARD 8P PIN, CONNECTOR (PC BOARD) 19P Remark < DIODE > D351 D751 D752 D753 D755 8-719-921-40 8-719-911-19 8-719-024-99 8-719-911-19 8-719-911-19 DIODE DIODE DIODE DIODE DIODE MTZJ-4.
MAIN Ref. No. Part No.
PANEL Ref. No. PANEL-SW Part No. REG Description Remark C604 C605 1-163-141-00 CERAMIC CHIP 1-162-290-31 CERAMIC 0.001uF 470PF C607 C608 C609 C610 C611 1-163-038-91 1-164-159-11 1-164-159-11 1-162-215-31 1-164-159-11 0.1uF 0.1uF 0.1uF 47PF 0.1uF C612 C613 1-124-589-11 ELECT 1-128-131-11 ELECT CERAMIC CHIP CERAMIC CERAMIC CERAMIC CERAMIC 47uF 22uF 5% 10% 5% 20% 20% 25V 50V 50V 50V 50V 16V 50V Part No.
REG Ref. No. D945 D946 D952 Part No. Description Remark Ref. No. 8-719-986-04 DIODE HZS9A1LTA 8-719-986-04 DIODE HZS9A1LTA 8-719-986-26 DIODE HZS12A3LTA < GROUND TERMINAL > Part No. SUB-TRANS TRANS Description Remark D962 D963 D964 8-719-024-99 DIODE 11ES2-NTA2B 8-719-024-99 DIODE 11ES2-NTA2B 8-719-024-99 DIODE 11ES2-NTA2B D965 D966 8-719-986-67 DIODE HZS33-2LTA 8-719-921-37 DIODE MTZJ-4.
HCD-SD1 TRANS Ref. No. VOLUME Part No. Description Remark < THERMISTOR(POSITIVE) > THP944 1-801-726-11 THERMISTOR, POSITIVE THP945 1-801-726-11 THERMISTOR, POSITIVE ************************************************************** 1-671-610-11 VOLUME BOARD ************ * < CAPACITOR > C691 C692 1-162-306-11 CERAMIC 1-162-306-11 CERAMIC 0.01uF 0.
