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HCD-GX255/RG170/RG470
SERVICE MANUAL
Ver. 1.1 2005.05
Canadian Model
HCD-GX255
AEP Model E Model
HCD-RG170/RG470
Australian Model
HCD-RG170
HCD-GX255 is the amplifier, CD player, tape deck and tuner section in MHC-GX255. HCD-RG170 is the amplifier, CD player, tape deck and tuner section in MHC-RG170. HCD-RG470 is the amplifier, CD player, tape deck and tuner section in MHC-RG470.
Photo: HCD-GX255
Model Name Using Similar Mechanism CD Section CD Mechanism Type Base Unit Name Optical Pick-up Block Name TAPE Section Model Name Using Similar Mechanism Tape Transport Mechanism Type
NEW CDM74KFS-F1BD81C (Except Mexican model)/CDM74KFS-F1BD84 (Mexican model) BU-F1BD81C (Except Mexican model)/BU-F1BD84 (Mexican model) KSM-215DCP HCD-GX355/RG270 CWM43FF13
SPECIFICATIONS
Amplifier section Canadian model: HCD-GX255
Continuous RMS power output (reference): 65 + 65 watts (6 ohms at 1 kHz, 10% THD) Total harmonic distortion less than 0.07% (6 ohms at 1 kHz, 40 W)
Other models: HCD-RG470
The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 130 + 130 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 160 + 160 watts (6 ohms at 1 kHz, 10% THD)
European and Russian models: HCD-RG470
DIN power output (rated): 110 + 110 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 140 + 140 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference): 280 + 280 watts (6 ohms at 1 kHz, 10% THD)
HCD-RG170
The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 50 + 50 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 65 + 65 watts (6 ohms at 1 kHz, 10% THD) Inputs AUDIO IN (stereo mini jack): voltage 250 mV, impedance 47 kilohms MIC (phone jack) (Latin American model only): sensitivity 1 mV, impedance 10 kilohms
Outputs PHONES (stereo mini jack): accepts headphones of 8 ohms or more VIDEO OUT (phono jack) (Mexican model only): max. output level 1Vp-p, unbalanced, Sync negative, load impedance 75 ohms SPEAKER: accepts impedance of 6 to 16 ohms
CD player section
System Compact disc and digital audio system Laser Diode Properties Emission duration: continuous Laser Output*: Less than 44.6µW * This output is the value measurement at a distance of 200mm from the objective lens surface on the Optical Pick-up Block with 7mm aperture. Frequency response 2 Hz - 20 kHz (±0.5 dB) Signal-to-noise ratio More than 90 dB Dynamic range More than 90 dB
HCD-RG170
DIN power output (rated): 20 + 20 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 25 + 25 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference): 50 + 50 watts (6 ohms at 1 kHz, 10% THD)
Continued on next page
COMPACT DISC DECK RECEIVER
9-879-612-02
2005E05-1 © 2005.05
Sony Corporation
Personal Audio Group Published by Sony Engineering Corporation
HCD-GX255/RG170/RG470
Tape deck section
Recording system Frequency response 4-track 2-channel, stereo 50 - 13,000 Hz (±3 dB), using Sony TYPE I cassettes
General
Power requirements North American model: 120 V AC, 60 Hz European and Russian models: 230 V AC, 50/60 Hz Australian model: 230 - 240V AC, 50/60 Hz Argentine model: 220 V AC, 50/60 Hz Mexican model: 127 V AC, 60 Hz Saudi Arabian model: 120 - 127, 220 or 230 - 240V AC, 50/60 Hz Adjustable with voltage selector Other models: 120 V, 220 V or 230 - 240V AC, 50/60 Hz Adjustable with voltage selector Power consumption Canadian model: HCD-GX255: 110 watts European and Russian models: HCD-RG470: 240 watts 0.25 watts (at the Power Saving Mode) HCD-RG170: 70 watts 0.25 watts (at the Power Saving Mode) Other models: HCD-RG470: 170 watts HCD-RG170: 125 watts Dimensions (w/h/d) (excl. speakers) Approx. 280 × 325 × 430 mm Mass (excl. speakers) Canadian model: HCD-GX255: Approx. 8.5 kg European and Russian models: HCD-RG470: Approx. 10.0 kg HCD-RG170: Approx. 7.2 kg Other models: HCD-RG470: Approx. 10.4 kg HCD-RG170: Approx. 8.5 kg Design and specifications are subject to change without notice.
Tuner section
FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range North American model: Other models: Antenna Antenna terminals Intermediate frequency AM tuner section Tuning range Pan-American models:
87.5 - 108.0 MHz (100 kHz step) 87.5 - 108.0 MHz (50 kHz step) FM lead antenna 75 ohms unbalanced 10.7 MHz
530 - 1,710 kHz (with the tuning interval set at 10 kHz) 531 - 1,710 kHz (with the tuning interval set at 9 kHz) European, Russian and Saudi Arabian models: 531 - 1,602 kHz (with the tuning interval set at 9 kHz) Other models: 530 - 1,710 kHz (with the tuning interval set at 10 kHz) 531 - 1,602 kHz (with the tuning interval set at 9 kHz) Antenna AM loop antenna Intermediate frequency 450 kHz
2
HCD-GX255/RG170/RG470
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. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product. This marking is located on the rear exterior.
UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size)
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.
ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
: LEAD FREE MARK Unleaded solder has the following characteristics. · Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! · Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. · Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.
3
HCD-GX255/RG170/RG470
TABLE OF CONTENTS 1. 2. 3.
3-1. 3-2. 3-3. 3-4. 3-5 3-6.
SERVICING NOTES ............................................... 5 GENERAL ................................................................... 6 DISASSEMBLY
Disassembly Flow ........................................................... Case (Top) ....................................................................... Door (CD) ........................................................................ Front Panel Section ......................................................... Mechanical Deck (CWM43FF13) ................................... CD Mechanism Deck (CDM74KFS-F1BD81C (Except MX model)/CDM74KFS-F1BD84 (MX model)) .................................................................... Back Panel Section .......................................................... MAIN Board .................................................................... BD Board/CD Board ....................................................... DRIVER Board, SW Board ............................................. Optical Pick-up (KSM-215DCP) .................................... SENSOR Board ............................................................... MOTOR (TB) Board ....................................................... MOTOR (LD) Board ....................................................... 8 9 9 10 10
3-7. 3-8. 3-9. 3-10. 3-11. 3-12. 3-13. 3-14.
11 11 12 12 13 13 14 14 15
4. 5. 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.
TEST MODE .............................................................. 16 ELECTRICAL ADJUSTMENT ............................ 20 DIAGRAMS
Block Diagram CD SERVO Section ........................ Block Diagram AUDIO/VIDEO Section ................. Block Diagram AMP Section ................................... Block Diagram PANEL, POWER SUPPLY Section .......................... Printed Wiring Board CD Board (Except MX model) ................................. Schematic Diagram CD Board (Except MX model) ................................. Printed Wiring Board BD Board (MX model) ......... Schematic Diagram BD Board (MX model) ............ Printed Wiring Boards CHANGER Section ............. Schemtic Diagram CHANGER Setion ..................... Printed Wiring Board MAIN Board (Suffix-11) ...... Schematic Diagram MAIN Board (1/3) (Suffix-11) ....................................................................... Schematic Diagram MAIN Board (2/3) (Suffix-11) ....................................................................... Schematic Diagram MAIN Board (3/3) (Suffix-11) ....................................................................... Printed Wiring Board MAIN Board (Suffix-12) ...... Schematic Diagram MAIN Board (1/3) (Suffix-12) ....................................................................... Schematic Diagram MAIN Board (2/3) (Suffix-12) ....................................................................... Schematic Diagram MAIN Board (3/3) (Suffix-12) ....................................................................... Printed Wiring Board POWER Board (GX255/RG170) .............................................................. Schematic Diagram POWER Board (GX255/RG170) .............................................................. Printed Wiring Board POWER Board (RG470: AEP, EE, RU) ................................................... Schematic Diagram POWER Board (RG470: AEP, EE, RU) ................................................... Printed Wiring Board POWER Board (RG470: E2, E51, AR, MX) ............................................ 21 22 23 24 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
6-24. Schematic Diagram POWER Board (RG470: E2, E51, AR, MX) ............................................ 6-25. Printed Wiring Boards AUDIO, MIC, HEADPHONE Boards ...................... 6-26. Schematic Diagram AUDIO, MIC, HEADPHONE Boards ...................... 6-27. Printed Wiring Boards CD-G Section (MX model only) ............................................................. 6-28. Schematic Diagram CD-G Section (MX model only) ............................................................. 6-29. Printed Wiring Board PANEL Section (1/2) ............... 6-30. Printed Wiring Board PANEL Section (2/2) ............... 6-31. Schematic Diagram PANEL Section (1/2) .................. 6-32. Schematic Diagram PANEL Section (2/2) .................. 6-33. Printed Wiring Boards TRANS Section (GX255/RG170) .............................................................. 6-34. Schematic Diagram TRANS Section (GX255/RG170) .............................................................. 6-35. Printed Wiring Boards TRANS Section (RG470: AEP, EE, RU) ................................................... 6-36. Schematic Diagram TRANS Section (RG470: AEP, EE, RU) ................................................... 6-37. Printed Wiring Boards TRANS Section (RG470: E2, E51, AR, MX) ............................................ 6-38. Schematic Diagram TRANS Section (RG470: E2, E51, AR, MX) ............................................
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
7.
7-1. 7-2. 7-3. 7-4. 7-5. 7-6. 7-7.
EXPLODED VIEWS
77 78 79 80 81 82
Overall Section ................................................................ Back Panel Section .......................................................... Front Panel Section ......................................................... Key Section ..................................................................... Chassis Section ................................................................ Transformer Section ........................................................ CD Mechanism Deck Section-1 (CDM74KFS-F1BD81C (Except MX model)/ CDM74KFS-F1BD84 (MX model)) ............................... 7-8. CD Mechanism Deck Section-2 (CDM74KFS-F1BD81C (Except MX model)/ CDM74KFS-F1BD84 (MX model)) ...............................
83
84
8.
ELECTRICAL PARTS LIST ................................ 85
· Abbreviation AR : Argentina model E2 : 120V AC Area in E model E51 : Chilean and Peruvian model EE : East European model MX : Mexican model RU : Russian model
4
HCD-GX255/RG170/RG470 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
Model number label
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 pickup 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. DISCRIMINATION OF THE MAIN BOARD There are two types of suffix-11 and suffix-12 of the MAIN boards used in set as follows.
MAIN BOARD (Component Side)
Label indication 2-560-990-01 2-560-991-01 2-560-993-01 2-560-994-01 2-560-996-01 2-560-997-01 2-560-998-01 2-580-000-01 2-580-001-01 2-580-002-01 2-580-003-01 2-580-004-01
Model GX255 RG170: AEP, EE, RU RG470: E2, E3 RG170: EA RG170: AUS RG170: E51 RG170: AR RG470: AEP, EE, RU RG470: E2 RG470: E51 RG470: MX RG470: AR
· Abbreviation AR : Argentina model AUS : Australian model CND : Canadian model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E51 : Chilean and Peruvian models EA : Saudi Arabia model EE : East European model MX : Mexican model RU : Russian model
Part Number AEP, EE, RU models : 1-865-919-12 only Other models : 1-865-919-11 or 1-865-919-12
5
HCD-GX255/RG170/RG470 SECTION 2 GENERAL
· Location of Controls This section is extracted from instruction manual.
Main unit
ALPHABETICAL ORDER A O P Z BUTTON DESCRIPTIONS
ALBUM +/- qs AUDIO IN wl AUDIO IN jack wf CD es CD SYNC wj Deck A wg Deck B qk DISC 1 - 3 qa DISC SKIP/EX-CHANGE qd Disc tray 0 DISPLAY 3 Display window 5 ECHO LEVEL1) wa EFFECT ON/OFF 4 ENTER 4 EQ BAND qs GROOVE 4 ILLUMINATION 2 MIC jack2) wd MIC LEVEL2) ws MULTIPL EX1) 6 Operation Dial (- EQ +/l L/ - TUNING +) qj
P FILE 4 PHONES jack w; PLAY MODE 8 Power illuminator qg PRESET EQ 4 REC PAUS E/START wl Remote sensor 7 SURROUND 4 TAP E A/B e; TUNER/BAND ea TUNING MODE 8 VOLUME control ql
?/1 (power) 1 X (pause) qs x (stop) qs M (fast forward) qs N (play) qs m (rewind) qs Z (eject) qf PUSH Z (deck B) (eject) qh Z PUSH (deck A) (eject) wh
1) 2)
Mexican model only Latin American model only (Mexican model comes with 2 microphone jacks)
1 2 3 45678
q;
es ea e; wl wk wj wh wg wf
L
l
j
H
S
s
A
B
qa qs qd qf qg qh qj qk ql w;
wd ws wa
6
HCD-GX255/RG170/RG470
Remote control
ALPHABETICAL ORDER A E F Z BUTTON DESCRIPT
ALBUM + qa ALBUM - qd CD qk CLEAR qg CLOCK/TIMER SELECT 2 CLOCK/TIMER SET 3 DISC SKIP q; DISPLAY wa ENTER 9 EQ qf
FM MODE 4 FUNCTION 6 PLAY MODE w; REPEAT 4 SLEEP ws TAPE qj TUNER BAND 5 TUNER MEMORY ql TUNING MODE w; VOLUME +/- qs
?/1 (power) 1 m/M (rewind/fast forward) 7 N (play) 8 X (pause) 8 x (stop) 8 +/- (tuning) qh ./> (go back/go forward) qh
IONS
ws wa w; ql qk qj qh
1 2 3 4 5 6 7 8
qg qf qd
9 q; qa qs
7
HCD-GX255/RG170/RG470 SECTION 3 DISASSEMBLY
· This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SET
3-2. CASE (TOP) (Page 9)
3-3. DOOR (CD) (Page 9)
3-4. FRONT PANEL SECTION (Page 10)
3-6. CD MECHANISM DECK (CDM74KFS-F1BD81C (EXCEPT MX MODEL)/ CDM74KFS-F1BD84 (MX MODEL)) (Page 11)
3-5. MECHANICAL DECK (CWM43FF13) (Page 10)
3-7. BACK PANEL SECTION (Page 11)
3-9. BD BOARD/ CD BOARD (Page 12)
3-11. OPTICAL PICK-UP (KSM-215DCP) (Page 13)
3-12. SENSOR BOARD (Page 14)
3-8. MAIN BOARD (Page 12)
3-10. DRIVER BAORD, SW BOARD (Page 13)
3-13. MOTOR (TB) BOARD (Page 14)
3-14. MOTOR (LD) BOARD (Page 15)
8
HCD-GX255/RG170/RG470
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE (TOP)
0 case (top) 6 case (side-R) 5 two screws (B3) 7 two screws (B3) 8
9
8
9
2 two screws (B3) 4 three screws (case 3 TP2)
3 case (side-R) 1 three screws (case 3 TP2)
3-3. DOOR (CD)
3 two claws
4 door (CD)
BOTTOM VIEW CD mechanism deck
1 Turn the pulley in the direction of the arrow.
Front panel side
2 Pull-out the disc tray.
9
HCD-GX255/RG170/RG470
3-4. FRONT PANEL SECTION
· Abbreviation AR : Argentina model E2 : 120V AC Area in E model E51 : Chilean and Peruvian models MX : Mexican model 1 connector (CN061)
(E2, E51, AR, MX)
5 connector (CN066) 8 screw (B3)
7 screw (B3)
9 front panel section 2 connector (CN203) 6 four screws (B3)
4 connector (CN065) 3 connector (CN201)
3-5. MECHANICAL DECK (CWM43FF13)
(except MX)
· Abbreviation MX : Mexican model 3 coating clip 2 harness 5 two screws (2.6 × 8) (except MX) (2.6 × 10) (MX) 4 two screws (2.6 × 8) 1 screw (2.6 × 8) (except MX) (2.6 × 10) (MX)
(MX)
7 cover (TCM)
6 screw (2.6 × 8) (except MX) (2.6 × 10) (MX)
8 mecanical deck (CWM43FF13)
10
HCD-GX255/RG170/RG470
3-6. CD MECHANISM DECK (CDM74KFS-F1BD81C (EXCEPT MX MODEL)/CDM74KFS-F1BD84 (MX MODEL))
7 CD mechanism deck (CDM74KFS-F1BD81C (except MX)/CDM74KFS-F1BD84 (MX))
(MX)
6 connector (CN1004)
1 three screws (B3)
(MX)
5 wire (flat type) (13 core) (CN331) 2
· Abbreviation MX : Mexican model 3 wire (flat type) (13 core) (CN701) 4 wire (flat type) (27 core) (CN201) (Except MX) wire (flat type) (31 core) (CN201) (MX)
3-7. BACK PANEL SECTION
8 back panel section 3 connector (CN901) 4 wire (flat type) (15 core) (CN381) 5 connector (CN041)
2 connector (CN903) 1 connector (CN906)
6 two screws (B3)
7 two screws (B3)
11
HCD-GX255/RG170/RG470
3-8. MAIN BOARD
4 connector (CN441)
5 MAIN board
MAIN board
1 connector (CN907) 2 connector (CN905) 3 two screws (B3)
3-9. BD BOARD/CD BOARD
2 screw (+BVTP 2.6 × 8) · Abbreviation MX : Mexican model 4 BD board (MX)/ CD board (except MX) 3 Remove soldering from the four points. 1 wire (flat type) (16 core) (CN101)
12
HCD-GX255/RG170/RG470
3-10. DRIVER BOARD, SW BOARD
1 two screws (+BTTP (M2.6)) 3 connector 4p (CN703)
4 DRIVER board
5 screw (+BTTP (M2.6))
6 SW board
2 wire (flat type) 5p (CN702)
3-11. OPTICAL PICK-UP (KSM-215DCP)
· Abbreviation MX : Mexican model
1 floating screw (+PTPWH M2.6) 5 two insulators
2 holder (213) ASSY qf optical pick-up (KSM-215DCP) 8 two insulators 7 two coil springs (insulator)
9
4 two coil springs (insulator)
3 two floating screw (+PTPWH M2.6) 6 two floating screw (+PTPWH M2.6) qs wire (flat type) (CN101) qd BD board (MX)/ CD board (except MX)
qa Remove the four solderings of motor.
0 screw (+BVTP 2.6x 8)
13
HCD-GX255/RG170/RG470
3-12. SENSOR BOARD
1 floating screw (+PTPWH M2.6) 2 tray 8 screw (+BTTP (M2.6)) 3 belt (table) 0 SENSOR board 4 floating screw (+PTPWH M2.6) 5 pulley (table)
6 floating screw (+PTPWH M2.6) 7 gear (geneva)
9 connector (CN731)
3-13. MOTOR (TB) BOARD
2 stopper
4
1 stopper 7 table motor assy (M741)
3 wire (flat type) 5 core (CN742) 8 MOTOR (TB) board 6 Remove the two solderings of motor. 5 two screws (+BTTP (M2.6))
14
HCD-GX255/RG170/RG470
3-14. MOTOR (LD) BOARD
2 two screws (+BTTP (M2.6)) 4 Remove the two solderings of motor. 3 MOTOR (LD) board
5 loading motor assy (M751)
1 belt (loading)
15
HCD-GX255/RG170/RG470 SECTION 4 TEST MODE
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 three buttons of x , [ILLUMINATION] and [DISC 1] simultane-ously. 2. The message "COLD RESET" is displayed on the fluorescent indicator tube momentarily, then becomes standby states.
AMP TEST MODE
This mode is used to display the parameter of amplifier IC and display the VACS status. Procedure: 1. Press the I/1 button to turn the power on. 2. Press three buttons of x , [ILLUMINATION] and [PRESET EQ] simultaneously. 3. When the AMP test mode is activated, the message "AMP TEST IN" is displayed on the fluorescent indicator tube momentarily, then amplifier adjustment mode is displayed on the fluorescent indicator tube. 4. Press the [DISPLAY] button to changed over between VACS status display mode and the amplifier IC parameter display mode. 5. In this mode, press the [GROOVE] button to changed over DBFB on/off, and "DBFB ON" or "DBFB OFF" is displayed on the fluorescent indicator tube. 6. In this mode, press the [SURROUND] button to changed over surround on/off, and "SURROUND ON" or "SURROUND OFF" is displayed on the fluorescent indicator tube. 7. In this mode, press the [EQ BAND] button to enter the equalizer adjustment mode. In the equalizer adjustment mode, press the [EQ BAND] button to change over the adjustment band as LOW/MID/HIGH. And turn the [l --- EQ + L] knob to adjust the equalizer level of each bands. 8. To release the amplifier IC parameter display mode or equalizer adjustment mode, press the I/1 button to the power off.
AM TUNING INTERVAL CHANGE-OVER (Except AEP, East European, Russian model)
A step of AM tuning interval can be changed over between 9 kHz and 10 kHz. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [TUNER/BAND] button to select "AM". 3. Press the I/1 button to turn the power off. 4. Press two buttons of [PLAY MODE/TUNING MODE] and I/1 simultaneously. 5. The message "AM 9K STEP" or "AM 10K STEP" is displayed on the fluorescent indicator tube, and thus the channel step is changed over.
CD SHIP (LOCK) MODE
This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [CD] button to select "CD". 3. Press two buttons of [CD] and [POWER] simultaneously. 4. The message "LOCK" is displayed on the fluorescent indicator tube, and the CD ship mode is set.
CD SHIP (LOCK) MODE & COLD RESET
This mode is used to perform CD chip (lock) mode and cold reset simultaneously. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [CD] button to select "CD". 3. Press three buttons of x , [CD] and [DISPLAY] simultaneously. 4. The message "COLD RESET" is displayed on the fluorescent indicator tube momentarily, then becomes standby states.
CD TRAY LOCK MODE
This mode is used to unable to take sample disc out of tray in the shop. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [CD] button to select "CD". 3. Load a disc and press two buttons of x and Z for 5 seconds. 4. The message "LOCKED" is displayed on the fluorescent indicator tube and the CD tray is locked. (Even if pressing the Z button, the message "LOCKED" is displayed on the fluorescent indicator tube and the CD tray is locked) 5. To release this mode, press two buttons of x and Z for 5 seconds. 6. The message "UNLOCKED" is displayed on the fluorescent indicator tube and the CD tray is unlocked.
16
HCD-GX255/RG170/RG470
AGING MODE
This mode can be used for operation check of CD section and tape deck section. CD section and tape deck section work in parallel. If an error occurred: The aging operation stops only an error occurred sections and display then status. If no error occurs: The aging operation continues repeatedly. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [CD] button to select "CD". 3. Load three discs and insert two tape to the deck A and B. 4. Press three buttons of x , [ILLUMINATION] and [DISC SKIP/EXCHANGE] simultaneously. 5. Aging operations of CD and tape are started at the same time. 6. To release this mode, press the I/1 button to turn the power off or press the function buttons to change the function. 1. Display at the Aging Mode Display operating state of CD section and tape deck section alternately. If an error occurred, stop display which that section. 2. CD Section The sequence during the aging mode is following as below. Display at the aging mode is the same as the normal operation. Aging mode sequence (CD section) :
Start (from disc 1)
3. Tape Deck Section The sequence during the aging mode is following as below. If an error occurred, stop display that step. Aging mode sequence (tape deck section) :
Rewind the tape A and B "TAPE AAG-1 or TAPE BAG-2" Shut off FWD play the tape A "TAPE AAG-3" 2 minutes Rewind the tape A "TAPE AAG-6" Shut off FWD play the tape B "TAPE BAG-3" 2 minutes Rewind the tape B "TAPE BAG-6" Shut off
Note: "TAPE *AG-*" is display of each step.
PANEL TEST MODE
Disc chucking
TOC read
Play first track for 2 seconds
Play last track for 2 seconds
EX-change open/close
Open the disc tray
Disc skip
Close the tray
Change the next disc.
This mode is used to check the fluorescent indicator tube, LEDs and buttons. Procedure: 1. Press the I/1 button to turn the power on. 2. Press three buttons of x , [ILLUMINATION] and [GROOVE] simultaneously. 3. Fluorescent indicator tube and LEDs are all turned on. 4. Press two buttons of [ALBUM ---] and [ENTER] simultaneously, mode is changed over. 5. In the key check mode, press each key, the defined key number of every each key list is displayed on the fluorescent indicator tube. 6. In the key count check mode, "KEYCNT 0" is displayed on the fluorescent indicator tube. Each time a key is pressed, "K" value increases. However, once a key is pressed, it is no longer taken into account. 7. In the headphone input check mode, connect the headphone, the message "H_P ON" is displayed on the fluorescent indicator tube, and disconnect the headphone, the message "H_P OFF" is displayed on the fluorescent indicator tube. 8. In the volume check mode, "VOLUME FLAT" is displayed on the fluorescent indicator tube. Turn the [MASTER VOLUME] knob clockwise, the message "VOLUME UP" is displayed on the fluorescent indicator tube momentarily and turn the [MASTER VOLUME] knob counterclockwise, the message "VOLUME DOWN" is displayed on the fluorescent indicator tube momentarily.
17
HCD-GX255/RG170/RG470
MC TEST MODE
This mode is used to check operations of microprocessor. Procedure: 1. Press the I/1 button to turn the power on. 2. Press three buttons of x , [ILLUMINATION] and [DISC 3] simultane-ously. 3. When the MC test mode is activated, VACS level is displayed on the fluorescent indicator tube momentarily. 4. Turn the [l --- EQ + L] knob clockwise, the message "ALL EQ MAX" is displayed on the fluorescent indicator tube momentarily and turn the [l --- EQ + L] knob counter-clockwise, the message "ALL EQ MIN" is displayed on the fluorescent indicator tube momentarily. 5. Press the [PRESET EQ] button, the message "ALL EQ FLAT" is displayed on the fluorescent indicator tube momentarily. 6. Turn the [MASTER VOLUME] knob clockwise, the message "VOLUME MAX" is displayed on the fluorescent indicator tube momentarily and turn the [MASTER VOLUME] knob counterclockwise, the message "VOLUME MIN" is displayed on the fluorescent indicator tube momentarily. 7. Press the [GROOVE] button to changed over VACS on/off. 8. When the [CD SYNC] key is pressed with the test tape (AMS100, AMS-110A) in the deck, number of space between tunes is counted, then if AMS-110A is set, "OK" is displayed on the fluorescent indicator tube and if AMS-100 is set, "NG" is displayed on the fluorescent indicator tube. 9. Press the I/1 button to release from this mode, then cold reset is performed.
1. Mechanism Deck Error Code Mode When this mode is entered, mechanism deck error code is displayed with the 10-character format on the fluorescent indicator tube. The first digit from the left indicates: The first digit from the left indicates which mode the error history is. In the mechanism deck error code mode, "M" is displayed on the fluorescent indicator tube. The second digit from the left indicates: (Error history number display) The second digit from the left indicates which order the error history is. "1" indicates the latest error history, and each time the number increases by one, the error history goes back to one-previous error. The third and 4th digit from the left indicates: (Error status display) The third and 4th digit from the left indicates which error status is indicated.
Display 0 0 0 8 1 6 Status No error Table operation time-out (Table does not move to the target position within the specified time) In the chucking down operation, the operation was retried by the maximum number of times but the operation could not be completed In the chucking up and down operation, the reverse recovery processing was attempted but it could not be recovered In the chucking up operation, the operation was retried by the maximum number of times but the operation could not be completed Loading operation time-out (Table does not move to the target position within the specified time) As the chuck was in the ex-open status at the initialization, the closing was attempted but could not be completed
1 7
VERSION DISPLAY MODE
This mode is used to check the model, destination and software version. Procedure: 1. Press the I/1 button to turn the power on. 2. Press three buttons of x , [ILLUMINATION] and [DISC 2] simultane-ously. 3. When this mode is activated, model and destination is displayed on the fluorescent indicator tube. 4. Press the [DISPLAY] button to changed over between software version and year, month, day of the software creation display mode and model and destination display mode. 5. To release this mode, press three buttons of x , [ILLUMI NATION] and [DISC 2] simultaneously.
1 8
2 0 2 2
The 5th and 6th digit from the left indicates: (Present status display) The 5th and 6th digit from the left indicates which operating status when an error occurred is indicated.
Display 0 1 0 2 0 3 0 1 1 1 1 1 1 4 0 1 2 3 4 8 Status Open completion status From open status, the movement to chucking down position is under way From chucking down position, the open operation is under way Chucking down completion status The chucking down operation is under way The chucking up operation is under way Close completion status From close status, the ex-open operation is under way From ex-open status, the close operation is under way Ex-pen completion status
CD ERROR CODE DISPLAY MODE
This mode can be used for error code display of CD section. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [CD] key to select "CD". 3. Press three buttons of x , [CD] and [DISC 1] simultaneously. 4. When this mode is activated, mechanism deck error code is displayed on the fluorescent indicator tube. 5. Press the [GROOVE] button to changed over between optical pick-up error code display mode and mechanism deck error code mode. 6. Turn the [l --- EQ + L] knob to change over display of error history. 7. To release this mode, press the I/1 button to turn the power off.
18
HCD-GX255/RG170/RG470
The 7th and 8th digit from the left indicates: (Motor status display) The 7th and 8th digit from the left indicates which motor output status when an error occurred is indicated.
Display × 0 × 1 × 2 × 3 0 × 1 × 2 × 3 × Status No table motor output Table motor forward output Table motor backward output Table motor break output No loading motor output Loading motor forward output Loading motor backward output Loading motor break output
The 5th and 6th digit from the left indicates: (Error step display) The 5th and 6th digit from the left indicates which processing when a trouble occurred
Display 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 A 0 B 0 C 0 D 0 E Contents Power OFF in progress Initialize in progress Oscillation stopping From oscillation stop, oscillation starting Stopping Stop operation is under way Start operation in progress TOC read in progress Search operation is under way Playback operation is under way Pause operation is under way Playback manual search operation is under way Pause manual search operation is under way --
The 9th and 10 th digit from the left indicates: (Tray status display) The 9th and 10th digit from the left indicates which target processing when an error occurred is indicated.
Display 0 1 1 2 1 8 Status Open operation Close operation Ex-open operation
2. Optical Pick-up Error Code Mode When this mode is entered, optical pick-up error code is displayed with the 8-character format on the fluorescent indicator tube. The first digit from the left indicates: The first digit from the left indicates which mode the error history is. In the optical pick-up error code mode, "D" is displayed on the fluorescent indicator tube. The second digit from the left indicates: (Error history No. display) The second digit from the left indicates which order the error history is. "1" indicates the latest error history, and each time the number increases by one, the error history goes back to one-previous error. The third and 4th digit from the left indicates: (Error status display) The third and 4th digit from the left indicates which error status is indicated.
Display 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Status Not focused (TOC read without a disc) GFS NG (TOC read with a disc chucked) Start operation time-over Defocused continuously (Defocused during TOC reading) Q code not entered for specified time Tracking not turned ON Blank disc (Blank disc TOC read)
The 7th and 8th digit from the left indicates: The 7th and 8th digit from the left indicates which operation in progress when a trouble occurred. (Step of each processing of the 5th and 6th digits is indicated)
5 REPEAT LIMIT CANCEL MODE
Number of repeat for CD playback is 5 times when the repeat mode is "REPEAT". This mode is used to enables CD to repeat playback for limitless times. Procedure: 1. Press the I/1 button to turn the power on. 2. Press the [CD] button to select "CD". 3. Press three buttons of x , [CD] and [PLAY MODE/TUNING MODE] simultaneously. 4. The message "LIMIT OFF" is displayed on the fluorescent indicator tube momentarily, CD repeat 5 limit is cancelled.
19
HCD-GX255/RG170/RG470 SECTION 5 ELECTRICAL ADJUSTMENTS
CD SECTION
Note: 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10M impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. · Abbreviation MX: Mexican model
RF signal waveform VOLT/DIV : 200mV TIME/DIV : 500ns
level : 1.3 ± 0.3 Vp-p
S-CURVE CHECK
CD board (except MX) oscilloscope BD board (MX) TP(FE) TP(VC)
CD BOARD (Conductor Side) (except MX) BD BOARD (Conductor Side) (MX)
Procedure: 1. Connect an oscilloscope to TP (FE) and TP (VC) on the CD board (except MX) or BD board (MX). 2. Press the I/1 button to turn the power on. 3. Load the disc (YEDS-18) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search) 4. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3 ± 0.5 Vp-p.
S-curve waveform symmetry
TP (VC) TP (FE) IC101
A within 3 ± 0.5 Vp-p B
Note: · Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. · Take sweep time as long as possible and light up the brightness to obtain best waveform.
TP (RFACO)
Connecting Location: CD board (except MX) BD board (MX)
RFAC LEVEL CHECK
CD board (except MX) oscilloscope BD board (MX) TP(RFACO) TP(VC)
Procedure: 1. Connect an oscilloscope to TP (RFACO) and TP (VC) on the CD board (except MX) or BD board (MX). 2. Press the I/1 button to turn the power on. 3. Load the disc (YEDS-18) and playback. 4. Confirm that oscilloscope waveform is clear and check if RFAC signal level is correct or not.
Note: Clear RFAC signal waveform means that the shape " " can be clearly distinguished at the center of the waveform.
Connecting Location: CD board (except MX) BD board (MX)
20
HCD-GX255/RG170/RG470 SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM CD SERVO Section
FILTER CD DSP IC101 (1/2) (EXCEPT MX) IC101 (1/2) (MX) DETECTOR CD +3V 51 53 50 52 112 FILO PCO CLTV FILI XPCK 117 C4M 93 XTSL XTAO CLOCK GENERATOR XTAI XTACN 77 78 95 CD-L 81 86 R-CH X171 16.9344MHz
A 26 B 27 C 28 D I-V AMP 29
A B C D
INTERNAL BUS
RF SUMMING AMP FOCUS ERROR AMP
AC_ SUM
34
35
EQ_ IN
RFAC VCA
EQ
RFACO
41
42 45
RFACI ASYI ASYO
ASYMMETRY CORRECTOR
DIGITAL PLL
EFM DEMODULATOR
AOUT1 D/A CONVERTER D/A DIGITAL INTERFACE AOUT2
A
(Page 22)
FEO
32K RAM ERROR CORRECTOR
24
46
SELECTOR TO SERVO AUTO SEQUENCER SUBCODE PROCESSOR
F 20 E 19
F E TRACKING ERROR AMP TEO DIGITAL CLV PROCESSOR XRST MDP
22
CPU INTERFACE DATA CLOCK XLAT SENS SCOR LRCKI BCKI PCMDI 62 60 61 LRCK BCK PCMD 63 66 65 WFCK XUGF GFS EMPH 110 111 113 68 WFCK SBSO EXCK SQSO SQCK 98 99 96 97 SCOR SBSO EXCK
OPTICAL PICK-UP BLOCK (KSM-215DCP) LASER DIODE AUTOMATIC POWER CONTROL Q10 LD PD
6
100
102 105 104 107 115
36
APC LD AMP
37
SCOR, SBSO, EXCK, WFCK
PD
LD
B
(Page 22)
31 33 45 32 19 O-CD-DATA O-CD-CLK O-XLT I-CD-SENS I-SCOR
SFSY/LRCKIB SBSY/BCKIB LRCKIA BCKIA SDI0
MOTOR/COIL DRIVE IC251 (EXCEPT MX) IC251 (MX) CH4OUTF CH4OUTF MOTOR DRIVE CH4IN 24 27 OPOUT OPIN+ 2
M101 (SPINDLE)
M
16 15
I-MP3-DI O-MP3-DATA O-MP3-CLK O-MP3-CS I-MP3-ACK I-MP3-REQ O-MP3-LP O-MP3-RESET O-MP3-STB
29 30 28 39 40 43 44 38 42
19 18 16 15 14 6 7 4 8 36 5 2 3 MIDIO MICK MICS MIACK PO11/BUCK/AD14 MILP RESET STANDBY
11 SDO0
21 23 CD DSP IC101 (2/2) (EXCEPT MX) IC101 (2/2) (MX) M102 (SLED) TEI FEI
MP3 DECODER IC301 (EXCEPT MX) IC301 (MX)
O-XTCN 34 A/D CONVERTER SYSTEM CONTROLLER IC901 (1/4) (SUFFIX-11) IC901 (1/4) (SUFFIX-12) O-LM-F 49 O-LM-R 48 LOADING MOTOR DRIVE IC701 7 9 FIN RIN OUT1 OUT2 4 2
M
17 18
CH3OUTF CH3OUTR MOTOR DRIVE
CH3FIN CH3RIN
23 21
M
M751 (LOADING)
2-AXIS DEVICE 14 (FOCUS) (TRACKING) 13
10 CH1OUTF CH1OUTR COIL DRIVE CH1FIN CH1RIN 4 5 11 12 13 14 12 11 CH2OUTF CH2OUTR COIL DRIVE MUTE 20 CH2FIN CH2RIN 5 7
SRDR TFDR TRDR FFDR FRDR
FOCUS/TRACKING/SLED PWM GENERATOR
9
SFDR
FOCUS/ TRACKING/SLED SERVO DSP
MIRR, DFCT, FOK DETECTOR
FOK MIRR DFCT
3 1 2 O-TM-F 51 O-TM-R 50
TABLE MOTOR DRIVE IC712 7 9 FIN RIN OUT1 OUT2 4 2
COUT SERVO INTERFACE SCLK
M
119 108
M741 (TABLE)
· Abbreviation MX : Mexican model · R-ch is omitted due to same as L-ch. · SIGNAL PATH : CD PLAY : VIDEO
SERVO AUTO SEQUENCER SSTP
I-CD-NUMBER-SENS 73
LEVEL SHIFT Q731
TABLE ADDRESS SENSOR IC731
I-E-1 I-E-3 TO CPU INTERFACE 7
ROTARY ENCODER S711
52 54
DISC TRAY ADDRESS DETECT S751 OPEN/CLOSE DETECT OPEN
I-OPEN-SW 56 (MX) S101 (LIMIT) 47 O-XRST SWITCHING IC501 (EXCEPT MX)
CLOSE
HCD-GX255/RG170/RG470
21
21
HCD-GX255/RG170/RG470
6-2. BLOCK DIAGRAM AUDIO/VIDEO Section
(MX) VR801 MIC LEVEL (MX) MIC AMP IC801 (1/2) MUTING Q801 JK802 MIC 2 JK802 MIC (E2, E51, AR) VR851 ECHO LEVEL +9V MIC AMP IC801 (2/2) (MX) CD GRAPHICS DECODER IC1001
JK801 MIC 1
B
ECHO AMP IC802
(Page 21)
SBSO WFCK SCOR EXCK
SCHMIT TRIGGER IC1005
3 5 4 2
DATA SFSY SBSY CLCK
VOUT 44
VIDEO AMP IC1006
J803 VIDEO OUT
VIDEO MUTING Q1010 VMUTE XO1 60 X1002 14.31818 MHz XI1 59
(E2, E51, AR)
MIC IN
D-RAM IC1002
J751 AUDIO IN
DQ1 DQ4 R-CH
25, 27, 29, 30
1, 2, 24, 25
VD0 VD3 GDET 37 DEN 52 VA0 VA7 NTSC/PAL SWITCH Q1001 LEVEL SHIFT Q1005, 1009 LEVEL SHIFT Q1002, 1006 CDG-DET CDG/_BGC
9 12, 14 17
(Page 23)
E
HP IN
HP/AUX IN
A0 A7 58
MIC
15 22
63 MD L
MUTE 6 WE OE RAS CAS 3 22 4 23 13 28 14 26 WE OE RAS CAS
MUTE_DATA
(Page 21)
A
CD-L
1 CD L TONE OUT1 37 FM/AM TUNER PACK FM 75 COAXIAL FM ANT ANT GND AM ANT AM TUNER-L TUNER-R R-CH DO DI CLK CE TUNED STEREO TU-MUTING R-D R-C (AEP, EE) 7 PB OUT1 3 TAPE L 35 61 TUNER L FEED BACK SWITCH Q141 R-CH DBFB
RESET 54
CDG-RST
G (Page 23)
· Abbreviation AR : Argentina model E2 : 120V AC Area in E model E51 : Chilean and Peruvian models EE : East European model MX : Mexican model · R-ch is omitted due to same as L-ch. · SIGNAL PATH : TUNER : CD PLAY : TAPE PLAY (DECK-A) : TAPE PLAY (DECK-B) : REC : AUX IN
LC72121 DI LC72121 DO LC72121 CLK ANT GND LC72121 CE TUNED STEREO TU MUTE RDS DATA RDS CLK
BBIN1
36 VIN1
VOL OUT1 33
VOL OUT1
C (Page 23)
INPUT SELECT, TONE CONTROL, ELECTRICAL VOLUME IC101 (SUFFIX-11) IC101 (SUFFIX-12)
AMS OUT
SAOUT1
HP1 (PB) (DECK-A)
L-CH
SI SC
9 TAPE A1 11 TAPE B1 R-CH BIAS OSC L201
REC OUT1 15
: MIC : VIDEO
R-CH
19 18
40
55
L-CH BIAS OSC Q201 HRPE1 R-CH (REC/PB/ERASE) (DECK-B) ERASE PB MUTING Q209 R-CH REC MUTING Q205, 207 R-CH R-CH REC BIAS SWITCH Q231, 232 +9V BAND-PASS FILTER Q111, 112 (MX) CAPSTAN/REEL MOTOR DRIVE Q341, 342 PLUNGER DRIVE (DECK-A) Q345, 346 PLUNGER DRIVE (DECK-B) Q343, 344
TAPE MECHANISM DECK BLOCK
M
(CAPSTAN/REEL)
(DECK-A)
MIC IN HP/AUDIO IN
VMUTE CDG-DET CDG/_BGC MUTE_DATA CDG-RST
DO DI CLK CE TUNED STEREO TU-MUTING
Q203
R-D R-C
(DECK-B)
D923 72 18 82 81 1 2 92 93 94
D921 63 60 59 57 58 85 86 87
A-HALF A-MODE I-TAPE-A-STAT 88 REC (REW) B-HALF B-MODE I-TAPE-B-STAT 89 I-REEL-A 83 I-REEL-B 84 REC (FWD) A-PHOTO B-PHOTO
90
91
67 66 65 68 69 70 71
O-BD3401-DATA O-BD3401-CLK
O-LC72121-DO I-LC72121-DI O-LC72121-CLK O-LC72121-CE I-TUNED I-STEREO O-ST-MUTE
I-MIC I-HP/AUDIO IN
I-RDS-DATA I-RDS-CLK
I-STREAM I-VACS
O-VMUTE I-CDG-DET I-CDG-BGC I-CDG-MUTE-DATA 0-CDG-RST
I-TAPE-AMS
O-REC/PB
(AEP, EE)
SYSTEM CONTROLLER IC901 (2/4) (SUFFIX-11) IC901 (2/4) (SUFFIX-12)
HCD-GX255/RG170/RG470
22
22
O-MOTOR O-A-SOL O-B-SOL
O-BIAS
HCD-GX255/RG170/RG470
6-3. BLOCK DIAGRAM AMP Section
HP IN
E (Page 22)
(Page 22) G
DBFB IC441 (GX255/RG170) IC441 (RG470: AEP, EE, RU) IC441 (RG470: E2, E51, AR, MX)
+
(RG170: AEP, EE, RU)
R-CH
R-CH
J701 PHONES
JK441
(Page 22) C
VOL OUT1
BUFFER IC251 (SUFFIX-11) IC251 (SUFFIX-12) GX255/RG170: E2, E3, E51, EA, AR, AUS/RG470 MUTING Q251 R-CH MUTING CONTROL Q261
POWER AMP
+
R-CH
L FRONT SPEAKER IMPEDANCE USE 6 16 R
STANDBY SWITCH Q489
+
RY441
RY B+
R-CH
AMP ON/OFF Q933
OVER LOAD DETECT Q441
DC DETECT Q481, 482
TEMPERATURE DETECT Q483, 484 TH441 D035
FAN ON/OFF Q044
M
M001 (FAN)
R-CH LEVEL SHIFT Q490, 491 (RG470: E2, E51, AR, MX)
+
R-CH
+ + +
PROTECTOR Q485 RELAY DRIVE Q486 RELAY SWITCH Q488 (RG470) FAN DETECT Q045
GX255/RG170/ RG470: AEP, EE, RU
PROTECT DETECT Q487
+
23 O-SYS-MUTE
24 O-STK-MUTE
95 I-PROTECTOR
SYSTEM CONTROLLER IC901 (3/4) (SUFFIX-11) IC901 (3/4) (SUFFIX-12)
· Abbreviation AR : Argentina model AUS: Australian model E2 : 120V AC Area in E model E3 : 120V AC Area in E model E51 : Chilean and Peruvian models EA : Saudi Arabia model EE : East European model MX : Mexican model RU : Russian model · R-ch is omitted due to same as L-ch. · SIGNAL PATH : TUNER
HCD-GX255/RG170/RG470
23
23
HCD-GX255/RG170/RG470
6-4. BLOCK DIAGRAM PANEL, POWER SUPPLY Section
SYSTEM CONTROLLER IC901 (4/4) (SUFFIX-11) IC901 (4/4) (SUFFIX-12) (MX) +5V REGULATOR IC1003 B+ SWITCH Q1007, 1008
FL/LED DRIVER IC701 O-CDG-POWER 61
CDG +5V
S1 S21 SO1 SI1 SCK1 CE RESET 9 8 7 16 6 36 35 37 4 3 I-VFD-DATA O-VFD-DATA O-VFD-CLK O-VFD-CE O-VFD-RESET M+7V (RG470) M+9V
D301, 302 +9V REGULATOR IC021 (SUFFIX-11) IC021 (SUFFIX-12)
68 80
FL701 FLUORESCENT INDICATOR TUBE
· Abbreviation AR : Argentina model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E51 : Chilean and Peruvian models EA : Saudi Arabia model EE : East European model MX : Mexican model RU : Russian model
45 58, 61 67
G1 G13
FAN B+
REGULATOR Q043 RY B+ B+ SWITCH Q041, 042 RECT D021 024
26 31
D601 606 (FRONT PANEL LED)
LED DRIVE Q601 606
STREAN LED1 STREAN LED6
O-FRONT-SP-RELAY 27 X2 X1 4 X701 4.19MHz 3 +9V
+9V REGULATOR IC011 (SUFFIX-11) IC011 (SUFFIX-12) +16V RECT D011 014
F907
MAIN POWER TRANSFORMER PT901
S611 617, S621 626, S631 638, S641 646, 648, SW601
19 22
KEY1 KEY4 (GX255/RG170/RG470: AEP, EE, RU) F904 AMP B+ AMP B RECT D401 F905 AMP +VL D611 STANDBY 22 O-STBY-LED AMP VL AMP +VH AMP VH REMOTE CONTROL RECEIVER IC610 (RG470: E2, E51, AR, MX) 7 I-SIRCS-IN VP B REGULATOR Q902 VF1 VF2 Q902 S660 VOLUME ROTARY ENCODER 6 I-VOL-A 21 I-VOL-B I-AC-PULSE 20 RECT D007, 008 F906 (E2, E3, E51, EA) S901 VOLTAGE SELECTOR 240V 220V 120V D006 SUB POWER TRANSFORMER PT902 EVER +10V D902 RESET SWITCH Q901 VCC VREF, VDD VOLTAGE DETECT IC902 (SUFFIX-11) IC902 (SUFFIX-12) D903 REGULATOR Q903, 904 RECT D902 905 (EXCEPT E2, E3, E51, EA) W001 (AC IN) D908 RECT D402 F908 RECT D401 F909
S601, 602
74 I-KEY0 97 I-POWER, DISPLAY
(EXCEPT E2, E3, E51, EA)
RY901
UNREG +3.3V REGULATOR IC006 (SUFFIX-11) IC006 (SUFFIX-12)
RECT D001 004
+3.3V +1.5V REGULATOR IC303 (EXCEPT MX) IC303 (MX)
MP3 +1.5V
I-RESET 12 I-AC-CUT 5
RELAY DRIVE Q002
O-POWER-RELAY 26
HCD-GX255/RG170/RG470
24
24
HCD-GX255/RG170/RG470
· Note For Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Board: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. · f : internal component. : Pattern from the side which enables seeing. · (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) Caution: Pattern face side: (Side B) Parts face side: (Side A) Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated. Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · f : internal component. · 2 : nonflammable resistor. · 5 : fusible resistor. · C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce por tant le numéro spécifié.
· Circuit Boards Location
CD-G board (MX) BD board (MX)/ CD board (EXCEPT MX) SW board
SENSOR board
MOTOR (LD) board DRIVER board
Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.
· Indication of transistor
C Q B E These are omitted.
Q B C E These are omitted.
· A : B+ Line. · B : B Line. · Voltages and waveforms are dc with respect to ground under no-signal conditions. CD/BD Section no mark :CD PLAY CD-G Section no mark : CD-G PLAY Other Sections no mark : FM ( ) : CD PLAY : TAPE PLAY [ ] : TAPE REC : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. F : TUNER (FM/AM) E : TAPE PLAY (DECK A) d : TAPE PLAY (DECK B) G : REC J : CD PLAY f : AUX IN N : MIC L : VIDEO · Abbreviation AR : Argentina model AUS : Australian model CND : Canadian model E2 : 120 V AC Area in E model E3 : 240 V AC Area in E model E51 : Chilean and Peruvian models EA : Saudi Arabia model EE : East European model MX : Mexican model RU : Russian model
MOTOR (TB) board
MIC board (E2, E51, AR, MX)
SUB TRANS board AC1 board (GX255/RG170/RG470: AEP, EE, RU)
VIDEO OUT board (MX)
TRANSFORMER board MAIN board
PANEL board
VOL board
POWER board AUDIO IN board MAIN board HEADPHONE board
HCD-GX255/RG170/RG470
25
25
HCD-GX255/RG170/RG470
6-5. PRINTED WIRING BOARD CD Board (Except MX model)
· See page 25 for Circuit Boards Location.
: Uses unleaded solder.
1
2
3
4
5
6
7
8
9
A
CD BOARD
(COMPONENT SIDE)
C302
CD BOARD
(CONDUCTOR SIDE)
M
M101 (SPINDLE)
S101 (LIMIT)
IC303
3 1 4 5
C303 C305 C501 R501 R313 C315 C316 C255
C252
B
IC501
R405 R351
R352 R353 C257 C260 R302 R354
R404
IC251
C306 C313 16
R307
R419 1 64
R403
M
R301
M102 (SLED)
C314 C258 C312 C259
17
R253
C320
C307
IC301
32 49 33 R303 48 C310
R306
C311
C317 R305 R402
C308
C309
R252
C251
FB301
C318 C116
R251
R409 R407 TP (VC)
C113
R401
C213 R410
C212
C194 R412 R408
C
C210 R205 C184 R162 R191
R411
C163 R163
C211
(SUFFIX-11)
R406
R165
C174 C196
C12
C114 R113
R114
C183 R201 C201 C182
R173
CN201 C115
R182
A1
MAIN BOARD CN301
C14
R172 R111 C195
R171 C171
C10
C18 R11 R12
R181
C185
C112 C111
IC101
C181
C186
X171
C172 C13 TP (FE)
(Page 32)
R112
C162
C161
A3
R161
R204 CN202
MAIN BOARD CN301
C203
C209
(Page 36)
(SUFFIX-12)
C125
C17 C15 C11 C16 R13 R10 1-860-50213 (13) CN101 C124
C132 R143 R141
D
C151 C134 R121 C123
R151
1-860-502C133
13 (13)
Q10 E
C143 R203 R142 C141 C142
C122 R132 TP (RFACO)
R133
(KSM-215DCP)
E
HCD-GX255/RG170/RG470
26
26
R131 C131
OPTICAL PICK-UP BLOCK
HCD-GX255/RG170/RG470
6-6. SCHEMATIC DIAGRAM CD Board (Except MX model)
· See page 60 for Waveforms.
· See page 61 for IC Block Diagrams.
C131 100p C142 1500p C134 0.1 C133 0.01 C125 0.1 R131 1M R121 15k R12 100k
TP423 IOP1 R13 1 C17 220 4V C16 1 TP424 IOP2
C10 10
C15 0.1
VC VCC
TP (RFACO) C124 330p
TP125 RFACI
R203 0 C307 0.1 R307 10k
C151 100 10V R151 0
C143 0.1
R143 3.3k C141 0.1 R141 4.7k
R10 3.3
C11 10
E D A
TP10 E TP11 D TP12 A TP13 B TP14 C
E D A B C F AGND LD
C132 0.47
R133 180k
R142 1k
R132 10k
C123 0.1
C122 0.1
B JPO10 APC R11 0 Q10 2SB1690K AUTOMATIC POWER CONTROL C F
TP102 F
PIO0/SDI2/IO0
IRQ/FIO
VSS
PIO1/SDI3/IO1
TXO
SFSY/LRCKIB
PIO7/BUS3/IO7
PIO6/FI3/BUS2/IO7
PIO5/FI2/BUS1/IO5
PIO4/FI1/BUS0/IO4
SBSY/BCKIB
PIO3/IO3
CKI/CLOCK/
PIO2/IO2
WE/SDO1 SDO2 CS/RAS/ PO12 AD15/CAS/ MP3REQ SDO3/OE
VDD
SDI1/ DATA LRCKIA BCKIA SDI0 LRCKO BCKO R351 100 TP103 LRCK LRCK VSS TP104 PCMD VSS C306 0.1 VDDT R405 100 MIACK MIACK R353 100 TP105 BCK BCK VDD VC R111 1k R112 15k FEO TP (FE) EMPH C161 0.1 DOUT DOUT R402 100 STANBY R401 100 RESET VDDP MP3RST MP3STB R161 100 TEST TEST1 IOVSS2 C318 0.01 C181 0.1 C171 R171 X171 22p 16.9344MHz 470 C174 0.1 NC XVSS CD DSP IC101 CXD3059AR F E E NC AVSS0 AVDD0 IOVDD1 TP428 FRDR FRDR TP429 FFDR FFDR TP430 TRDR XVDD AVDD1 C317 0.01 R313 220 AOUT1 C185 470p C182 0.1 AOUT1 R181 100 C183 22 6.3V VREFL AVSS1 AVSS2 C186 470p AOUT2 R182 100 C184 22 6.3V VREFR AOUT2 AVDD2 C201 100 10V C162 0.1 C203 100 10V NC SRDR SFDR SFDR IOVSS1 TP425 SW+ SSTP TP432 MDP MDP LOCK VSS FOK MDP S101 (LIMIT) C195 0.1 TP426 SWTRDR TFDR SRDR TP431 TFDR TRDR FFDR FRDR C115 0.1 EMPHI IOVDD2 FEI R113 1k TEO JPO103 TEI TEI R114 15k F C114 470p C113 3300p C112 470p C111 3300p PCMD A R352 100 TP427 PCMDI PCMDI LRCKI R354 100 C18 1000p F+ C14 0.1 T+ TFC116 100 10V VR TP15 PD TP16 F+ TP17 FTP18 TTP19 FPD F+ T+ TFCN101 16P
DDVRSEN
DDVROUT
DDCR
AVSS5
AVDD3
AVDD5
RFACO
AC_SUM
FILI
BCKI
PDSENS
RFDCO
AVDD4
AVSS3
AVSS4
RFACI
EG_IN
PCO
RFC
PD
VPCO
BIAS
NC
FILO
ASYO
CLTV
VCTL
ASYI
NC
LD
NC D D C C B B A
PO9/AD12 PO08/AD11 VDDM SRMSTB R303 100k VDDT AD10 AD9 C310 0.1 AD8 PO07/AD7 PO06/AD6 MP3 DECODER IC301 TC94A34FG-002 PO11/BUCK/AD14 PO10/CCE/AD13
SDO0
MICK MIDIO MIDIO R419 100 MILP R403 100 MICS MICS MILP
AD4/PO04
AD2/PO02
AD3/PO03
AD1/PO01
PO05 AD5/
AD0/PO00
CKO/PO13/AD16
VDDX
VSSX
MIMD
VSSP
VSS
VDD
XO
XI
TEST
VCOI
R302 10k
R404 100
MICK
R173 0
R301 100k R305 100k
C172 27p
R172 1M
XTAO XTAI
R306 0 C314 47 4V C308 47 4V
C315 0.1
C316 0.0022
C313 0.1
C311 0.1
C312 0.1
C309 0.1
IOVSS0
XTACN
CLOCK
IOVDD0
DFCT
WFCK
SYSM
SCOR
WDCK
SQCK
SQSO
SBSO
DATA
SENS
EXCK
XRST
SCLK
XPCK
XUGF
XTSL
XLAT
VDD
NC
VSS
GFS
VDD
C4M
RMUT LMUT
ATSK
C2PO
COUT
MIRR
VOUT
STBY
GND
+1.5V REGULATOR
NC
VIN
IC303 BH15FB1WG
R162 47k C210 0.1 C194 0.1
TP433 MP3VDD
R163 100
C163 0.1
C196 0.1
FB301
C302 0.1
C305 220 4V
C303 0.1
TP422 MP3GND
R165 0
R191 0
XTACN
CLOCK
CN201 27P M+7V M-GND M-GND MP3-STB TP187 MGND TP401 MP3STB TP402 MP3REQ TP403 MIACK TP404 MICK TP405 MIDIO TP406 MILP TP407 MICS MP3STB MP3REQ MIACK MICK MIDIO MILP MICS C213 22p TP186 MVDD C501 0.1
MP3-ACK MP3-CLK MP3-DIO MP3-LP MP3-CS MP3(3.3V)
TP421 DGND
TP420 AGND
(SUFFIX-11)
MP3-REQ
TP436 AVDD
SCOR
XLT
SENS
DATA
XRST
NC
TRDR
TFDR
FFDR
MDP R251 10k GND R252 22k C251 6800p JPO004 MDP
FRDR
TP418 GAIN_SW
R253 10k C259 0.1
T+
F+
T-
F-
(Page 35)
MP3-RST MP3-GND SCOR CD-SENS CD-CLK XLT
TP408 MP3RST R205 0 TP417 SCOR TP416 SENS TP415 CLK TP414 XLT TP413 DATA TP412 XRST TP419 XTCN TP434 AVDD TP410 ROUT
MP3RST
C258 0.1 C320 0 R201 C209 0.01 SWITCHING IC501 VCC C257 0.1
CH2OUTF
CH1OUTR
GND
CH2OUTR
R410 100 R409 100 R408 100 R407 100 R406 100 R412 100
SENS CLOCK XLT DATA XRST
C212 22p
CH1OUTF
R411 100
SCOR
CNF4
POWVCC
OPIN+
CH1FIN
SW
CH1RIN
CH2RIN
OPIN-
CH2FIN
C252 0.1
OUTVREF
CH4CAPA
PREVCC
CH4IN
GND
AVDD(3.3V) R-CH A-GND L-CH D-GND DOUT DVDD(3.3V)
IC251 BA5947FM AOUT2 R501 100
MUTE
(SUFFIX-12)
XTCN
XTACN
OPOUT
POWVCC
CH3RIN
CH3FIN
CH3OUTF
CH4OUTF
XRST
CH3OUTR
CH4OUTR
(Page 39)
CD-DATA
C211 220p
MOTOR/COIL DRIVE C255 0.1
C260 220 10V
TP411 LOUT
AOUT1
TP (VC)
TFDR
SRDR
SFDR
TP250 SPTP251 SP+ TP252 SL+ TP253 SL-
M101 (SPINDLE)
TP409 DOUT R204
DOUT
TP435 DVDD
M102 (SLED)
HCD-GX255/RG170/RG470
27
27
HCD-GX255/RG170/RG470
6-7. PRINTED WIRING BOARD BD Board (MX model only)
· See page 25 for Circuit Boards Location.
: Uses unleaded solder.
1
2
3
4
5
6
7
8
9
A
BD BOARD
(COMPONENT SIDE)
C302
BD BOARD
(CONDUCTOR SIDE)
M
M101 (SPINDLE) S101 (LIMIT)
3
1
IC303
4 C305 C303 R405 C315 C255 5
C252
R313
R351 R404 R403 R419 1 C313 64 R306 C306 16 17
B
C316 C257 R302 C260
R353 R354 R352
R301
M
R307
C314 C258 C312 R253 C308 C318 C259 C307
M102 (SLED)
IC301
C311
32 33 49 48 C310 R410 R409 C213 R401 C317 R305 R402
IC251
C320
C309
R303
C116
C113 R113 R114
C114
C
R251
C251
TP (VC) R411
R407 C163 R406
(SUFFIX-11)
R205 C184
C210
R162 R191
C212
R163
R201
R165
C183 C182 R173
C211 R408 R412 C194 CN201 R182
FB301
R252
A2
MAIN BOARD CN301
C174
C172 R172
C196
C201
C14 TP (FE) C195 C112 C111
(Page 32)
C186
C115 C181 C185 R181 C162 R161 C17 11 C161 (11) R204
IC101
R112
R111
A4
MAIN BOARD CN301
R171 C171
C209 X171
C10
C18 R11
C203
R12
(Page 36)
(SUFFIX-12)
R10 R121 C134 C123 Q10 E
CN101 C122
C124
D
C151
C125
C15
C11
C16
R13
1-864-566-
R151
C143 R423 R203 R142 C141 C142 1-864-56611 (11)
R421
R422
R132
TP (RFACO)
R133
(KSM-215DCP)
E
HCD-GX255/RG170/RG470
28
28
R131 C131
OPTICAL PICK-UP BLOCK
R143
C132 R141
C133
HCD-GX255/RG170/RG470
6-8. SCHEMATIC DIAGRAM BD Board (MX model)
· See page 60 for Waveforms.
· See page 61 for IC Block Diagrams.
C131 100p C142 1500p C134 0.1 C133 0.01 C125 0.1 R131 1M R121 15k R12 100k
TP423 IOP1 R13 1 C17 220 4V C16 1 TP424 IOP2
C10 10
C15 0.1
VC VCC
TP (RFACO) 330p
TP125 RFACI
R203 0 C307 0.1 R307 10k
C151 100 10V R151 0
C143 0.1
R143 3.3k C141 0.1 R141 4.7k
R10 3.3
C11 10
E D A
TP10 TP11 TP12 TP13 TP14
E D A B C
E D A B C F AGND LD
C132 0.47
R133 180k
R142 1k
C124
R132 10k
C123 0.1
C122 0.1
B JPO10 APC R11 0 Q10 2SB1690K AUTOMATIC POWER CONTROL C F
TP102 F
PIO1/SDI3/IO1
PIO0/SDI2/IO0
PIO3/IO3
PIO2/IO2
CKI/CLOCK/
PIO6/FI3/BUS2/IO7
PIO5/FI2/BUS1/IO5
SFSY/LRCKIB
IRQ/FIO
PIO7/BUS3/IO7
WE/SDO1 SDO2 CS/RAS/ PO12 AD15/CAS/ MP3REQ SDO3/OE
PIO4/FI1/BUS0/IO4
SBSY/BCKIB
VSS
VDD
TXO
SDI1/ DATA LRCKIA BCKIA SDI0 LRCKO BCKO R351 100 TP103 LRCK LRCK VSS TP104 PCMD VSS PCMD C306 0.1 VDDT R405 100 MIACK MIACK R353 100 TP105 BCK BCK VDD VC R111 1k R112 15k FEO TP (FE) EMPH C161 0.1 DOUT DOUT R402 100 STANBY R401 100 RESET VDDP MP3RST MP3STB R161 100 TEST TEST1 IOVSS2 C318 0.01 R301 100k C181 0.1 X171 C171 R171 22p 16.9344MHz 470 C174 0.1 NC XVSS CD DSP IC101 CXD3059AR F E E NC AVSS0 AVDD0 IOVDD1 TP428 FRDR FRDR TP429 FFDR FFDR TP430 TRDR XVDD AVDD1 C317 0.01 R313 220 AOUT1 C185 470p C182 0.1 AOUT1 C183 R181 22 100 6.3V VREFL AVSS1 AVSS2 C186 470p R182 C184 22 100 AOUT2 6.3V VREFR AOUT2 AVDD2 C201 100 10V C162 0.1 C203 100 10V NC SRDR SFDR SFDR IOVSS1 TP425 SW+ SSTP TP432 MDP MDP LOCK VSS FOK MDP S101 (LIMIT) C195 0.1 TP426 SWTRDR TFDR SRDR TP431 TFDR TRDR FFDR FRDR C115 0.1 EMPHI IOVDD2 FEI R113 1k TEO JPO103 TEI TEI R114 15k F C114 470p C113 3300p C112 470p C111 3300p A R352 100 TP427 PCMDI PCMDI LRCKI R354 100 C18 1000p F+ NC D D C C B B A C116 100 10V FTP19 FFCN101 16P C14 0.1 T+ TVR TP15 PD TP16 F+ TP17 FTP18 TPD F+ T+ T-
DDVRSEN
AVSS5
FILI
FILO
NC
PCO
DDCR
AVDD5
VCTL
BIAS
CLTV
LD
DDVROUT
BCKI
PO9/AD12 PO11/BUCK/AD14 PO08/AD11 PO10/CCE/AD13 VDDM SRMSTB R303 100k VDDT AD10 AD9 C310 0.1 AD8 PO07/AD7 PO06/AD6 MP3 DECODER IC301 TC94A34FG-002
SDO0
MICK MIDIO MIDIO R419 100 MILP R403 100 MICS MICS MILP
AD3/PO03
AD4/PO04
AD2/PO02
AD1/PO01
PO05 AD5/
AD0/PO00
CKO/PO13/AD16
VDDX
MIMD
VSSX
TEST
VSSP
VSS
VDD
XO
XI
VCOI
R302 10k
R404 100
MICK
R173 0
C172 27p
R172 1M
XTAO XTAI
R305 100k
AC_SUM
PDSENS
AVDD4
ASYI
ASYO
VPCO
AVSS3
RFACI
AVDD3
RFACO
RFC
NC
PD
AVSS4
EG_IN
RFDCO
R306 0 C314 47 4V C313 0.1 C311 0.1 C312 0.1 C309 0.1 C308 47 4V
C315 0.1
C316 0.0022
IOVSS0
XTACN
CLOCK
IOVDD0
DFCT
SYSM
WFCK
SQSO
SQCK
SBSO
SCOR
WDCK
XPCK
XRST
DATA
SENS
EXCK
XTSL
XLAT
SCLK
ATSK
XUGF
C2PO
COUT
VSS
VDD
NC
GFS
VDD
C4M
RMUT LMUT
MIRR
VOUT
STBY
+1.5V REGULATOR
GND
NC
VIN
IC303 BH15FB1WG
R162 47k
TP433 MP3VDD
C210 0.1 C194 0.1 C302 0.1 C305 220 4V C303 0.1 TP422 MP3GND R165 0 R191 0 C196 0.1
FB301
XTACN
CLOCK
WFCK
CN201 31P M+7V M-GND M-GND MP3-STB MP3-REQ MP3-ACK
(SUFFIX-11)
TP186 MVDD
TP187 MGND TP401 MP3STB TP402 MP3REQ TP403 MIACK TP404 MICK TP405 MIDIO TP406 MILP TP407 MICS MP3STB MP3REQ MIACK MICK MIDIO MILP MICS C213 22p C258 0.1 C320 1000p R201 C209 0.01 C257 0.1
MP3-CLK MP3-DIO
TP421 DGND
TP420 AGND
TP436 AVDD
SCOR
SBSO
XRST
EXCK
XLT
SENS
DATA
R163 C163 100 0.1
NC
TRDR
TFDR
A2
MAIN BOARD (3/3) CN301
MP3-CS MP3(3.3V) MP3-RST MP3-GND SCOR CD-SENS
R251 10k
R252 22k
C251 6800p
JPO004 MDP
C259 0.1
T+
F+
TP408 MP3RST R205 0 TP417 SCOR TP416 SENS TP415 TP414 CLK XLT
MP3RST
(Page 35)
CH1FIN
CH1RIN
CH2FIN
SW
CH2RIN
POWVCC
OPIN-
OPIN+
CNF4
GND
CH2OUTR
R410 100 R409 100 R408 100 R407 100 R406 100 R412 100
SENS CLOCK XLT DATA XRST
C212 22p
CH1OUTR
CH2OUTF
CH1OUTF
R411 100
SCOR
T-
F-
MP3-LP
FFDR
MDP
FRDR
TP418 GAIN_SW
R253 10k
A4
MAIN BOARD (3/3) CN301
CD-CLK XLT CD-DATA XRST XTCN AVDD(3.3V) R-CH A-GND L-CH D-GND DOUT DVDD(3.3V) D-GND WFCK SBSO EXCK
C252 0.1
TP413 DATA TP412 XRST TP419 XTCN TP434 AVDD TP410 ROUT
C211 220p
MOTOR/COIL DRIVE
CH3OUTR
GND
IC251 BA5947FM AOUT2
MUTE
(Page 39)
(SUFFIX-12)
CH4IN
XTACN
POWVCC
CH3OUTF
CH4OUTF
CH4OUTR
PREVCC
OUTVREF
CH4CAPA
C255 0.1
OPOUT
CH3RIN
CH3FIN
C260 220 10V
TP411 LOUT
AOUT1
SRDR
SFDR
TP250 TP251 TP252 TP253
TP (VC)
SPSP+ SL+ SLM102 (SLED)
TFDR
M101 (SPINDLE)
TP409 DOUT R204 0
DOUT
TP435 DVDD
R423 100 R421 100 R422 100
WFCK SBSO EXCK
HCD-GX255/RG170/RG470
29
29
HCD-GX255/RG170/RG470
6-9. PRINTED WIRING BOARDS CHANGER Section
· See page 25 for Circuit Boards Location. : Uses unleaded solder.
1
SENSOR BOARD
2
SW BOARD
3
4
5
6
7
A
IC731
A
K CN751 1 2 S751 OPEN/CLOSE DETECT CLOSE
(SUFFIX-11) (SUFFIX-12)
E
C
C1 MAIN BOARD CN391
(Page 32)
C2
CN701
MAIN BOARD CN391
(Page 36)
DRIVER BOARD
C715
1-687-132-
B
CN731
OPEN E
R751 JW712
Q731
11 (11) 1-687-669-
12 (12)
CN705
C752
JW707
JW711
JW706
JW705
C731
R733
MOTOR (TB) BOARD
R732
1 CN741
3
JW708 JW709
JW704
JW703
JW702
R734 R735
1
IC712 9
JW701
C
R711
D711
C736
R723
R722
C735
R721
C737
M
C751
R701 D701 R702 1
R712
CN742
CN702
JW710
M741 (TABLE)
C741
R713
IC701
R731
9
12
JW713
1-687-134-
(12)
CN703
D
CN704
JW714
11
1-866-201-
(11)
MOTOR (LD) BOARD
S711 ROTARY ENCODER DISC TRAY ADDRESS DETECT
E
M751 (LOADING)
M
CN721
F
2 1 12 1-687-133(12)
HCD-GX255/RG170/RG470
30
30
HCD-GX255/RG170/RG470
6-10. SCHEMATIC DIAGRAM CHANGER Section
· See page 61 for IC Block Diagrams.
OUT2
VREF
RNF
GND GND
VCC
LOADING MOTOR DRIVE
OUT1
IC701 BA6956AN
CN721 2P LM-2 M751 (LOADING) LM-1
CN704 2P LM-2 LM-1 C751 0.01
R702 100
R701 470
D701 MTZJ-T-77 5.1A
S711 DISC TRAY
OUT2 OUT1 VREF
ADDRESS DETECT E3 E2 E1
VCC
RNF
DRIVE
E-3 E-2 E-1 GND IC712 BA6956AN
R723 4.7k
R722 4.7k
C735 0.1
C736 0.1
C737 0.1
R721 4.7k
R712 4.7k
R711 1k
RIN
VM
FIN
CN703 4P
TABLE MOTOR
RIN
VM
FIN
C715 100 16V
CN701 13P CD-VM GND GND
(SUFFIX-11)
M741 (TABLE) CN742 5P TM-2 CN731 3P SENS-IN IC731 RPI-576 SENS-OUT GND CN741 3P SENS-IN SENS-OUT GND TM-1 SENS-IN SENS-OUT GND CN702 5P TM-2 TM-1 SENS-IN SENS-OUT GND R735 100
D711 MTZJ-T-77 3.6B
R713 22k
C1
MAIN BOARD (3/3) CN391
C741 0.01
LM-R LM-L TM-R TM-L E-1 E-2 E-3 TBL ADDRESS SENS D+3.3V
(Page 35)
C2
MAIN BOARD (3/3) CN391
(Page 39)
(SUFFIX-12)
TABLE ADDRESS SENSOR
R734 12k
R732 10k
R731 100
OPEN SW
R733 1k S751 OPEN/CLOSE DETECT OPEN CN751 2P OPEN SW GND CN705 2P OPEN SW GND Q731 DTC114ESA LEVEL SHIFT C731 10 50V C752 0.1 R751 4.7k
CLOSE
HCD-GX255/RG170/RG470
31
31
HCD-GX255/RG170/RG470
6-11. PRINTED WIRING BOARD MAIN Board (Suffix-11)
1 · Semiconductor Location
Ref. No. Location D001 D002 D003 D004 D006 D007 D008 D011 D012 D013 D014 D021 D022 D023 D024 D031 D035 D041 D042 D121 D122 D301 D302 D303 D341 D901 D902 D903 D905 D910 D921 D923 D943 D947 IC006 IC011 IC021 IC101 IC251 IC901 IC902 Q002 Q041 Q042 Q043 Q044 Q045 Q111 Q112 Q141 Q142 Q201 Q203 Q205 Q206 Q207 Q208 Q209 Q210 Q231 Q232 Q251 Q252 Q261 Q341 Q342 Q343 Q344 Q345 Q346 Q901 Q902 Q903 Q904 Q933 G-9 G-9 G-9 G-9 H-8 H-10 H-10 G-8 G-8 G-8 G-8 G-7 G-8 G-7 G-8 H-10 I-10 C-11 C-10 G-6 G-6 C-5 C-5 C-6 F-4 D-5 D-3 E-3 E-3 E-3 E-4 E-4 F-3 F-3 F-9 F-8 F-7 G-4 I-7 B-4 E-3 F-10 C-10 D-10 C-10 C-11 C-11 G-4 G-5 H-6 I-6 I-5 J-4 I-4 I-4 I-4 I-4 I-3 I-3 J-4 I-4 I-8 J-8 I-8 F-4 F-5 F-4 F-4 F-4 F-5 E-3 C-3 E-4 E-5 D-5
· See page 25 for Circuit Boards Location. 5 6
(EXCEPT MX) BOARD A1 CDCN201 (MX)
: Uses unleaded solder. 8 9 10
CD-G BOARD CN1001
2
3
4
7
11
12
13
A2
BD BOARD CN201
C1
DRIVER BOARD CN701
B1
(Page 26)
(Page 28)
(Page 30)
(Page 48)
A
1 R971 (CND, E3, EA, MX, AUS) R972 (E3, EA, MX, AUS) R973 (CND, E2, E3, E51, AUS, SP) R974 (E3, EA, AUS) P977 (RG470) R1971 (E2, E51, AR) R1972 (CND, E2, E51, AR) P1973 (EA, MX) R1974 (EXCEPT E3, EA, AUS) R1977 (RG255/RG170)
MAIN BOARD
R977 R976 R974 R973 R972 R971
JW127 JW128
R923 R981 R982
R958 JW110 R953 JW032
(MX)
ANTENNA
R245
R1975 R1974
R1973 R1972 R1971
R1977
R924
C928 JW124
R317
R954 R952 R969 R929 R968
JW136
JW135
JW134
C918 R936
1 C924
R322 R321
JW126 JW125 R920
B
R921
R957 R956 R955
R383 R382
JW194 R384 CN381
FM/AM TUNER PACK
SUPPLIED WITH THE ASSEMBLED BLOCK
FM 75 COAXIAL
R315
R381
AM
JW078 JW067 JW074 JW072 JW079
JW073 (RG470) (MX) JW071 R333 CN391
(MX)
C925
C923
R967 R965 R963 R961 R959
(MX)
R922
CN041 JW196 1 C045 3
JW131
JW133
R992 R993
R913
IC901
R937 R918 X901 C917
JW031
CN331
R939 D301 D302
C317
(GX255) CN301
R331 R332
C044
E Q043 E Q044
C305
JW112
M
C919
C912
JW137 JW158
C927
R940
M001 (FAN)
C910
R334 R337 R338 R339
C914 X902
R319
D303
R919
R303
JW132
R931
JW097
R323
JR001 R318
C311
R314
C301
C
R910 R915
R938
R927
JW043
R316
C302
C391
R340
R044
E
R045
R050 R048 R047
R928
JW095
JW161
JW159
JW122
R980
JW206
JW037
JW036
R979
R043
JW155
JW129 Q902 R926 R935 E JW130 C911 R970 R932 C916 C970
JW114
JW108
JW089 R320
JW066
R304
JW087
JW030
JW029
R330
R046 R049 C043 E D041 Q045 C041
JW09