Sharp CD-C471H User manual

– 1 –
CD-C471H
SERVICE MANUAL
No. S5830CDC471H/
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2
IMPORTANT SERVICE NOTES (U.K. ONLY) ................................................................................................................. 2
SPECIFICATIONS ............................................................................................................................................................ 3
NAMES OF PARTS .......................................................................................................................................................... 4
OPERATION MANUAL..................................................................................................................................................... 6
DISASSEMBLY................................................................................................................................................................. 7
REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 10
ADJUSTMENT................................................................................................................................................................ 11
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 18
TYPE OF TRANSISTOR AND LED ................................................................................................................................ 18
BLOCK DIAGRAM .......................................................................................................................................................... 19
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................ 22
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 43
TROUBLESHOOTING (CD CHANGER CONTROL / CD SECTION)............................................................................. 44
FUNCTION TABLE OF IC .............................................................................................................................................. 48
FL DISPLAY.................................................................................................................................................................... 58
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF METHOD (FOR U.K. ONLY)
Manufactured under license from Dolby Laboratories Licens-
ing Corporation. 
DOLBY, the double-D symbol and "PRO LOGIC"
are trademarks of Dolby Laboratories Licensing Corporation.
Illustration: CD-C471H
SHARP CORPORATION
CP-C471H, CENTER(GBOXS0006AWM5)
and SURROUND(GBOXS0007AWM5) Speaker System Constitute
CD-C471H.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CD-C471H

CD-C471H
– 2 –
SAFETY PRECAUTION FOR
SERVICE MANUAL
Precaution to be taken when replacing and servicing the
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output
forthismodelisspecifiedtobelowerthanClassIRequirements.
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the Laser
beam
(1) When the cabinet has been removed, the power is turned
on without a compact disc, and the Pickup is on a position
outerthanthelead-inposition,theLaserwilllightforseveral
seconds to detect a disc. Do not look into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit and
replacementservicepartshavealreadybeenadjustedprior
to shipping.
(3) No adjustment to the Laser Power should be attempted
when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens
at any time.
(5)CAUTION-Useofcontrolsoradjustments,orperformance
of procedures other than those specified herein may result
in hazardous radiation exposure.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
VAROITUS!LAITTEENKÄYTTÄMINENMUULLAKUINTÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅANNAT SÄTTÄN I
DENNA BRUKSANVISNING SPECIFICERAS.
KANANVÄNDAREN UTSÄTTAS FÖR OSYNLIG
LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.
Beforereturningthe unit tothecustomer after completionofa
repairor adjustmentit isnecessaryforthefollowingwithstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
Set name set value
Withstanding Voltage Tester
Test voltage 4,240 VPEAK
3,000 VRMS
Set time 6 secs
Set current(Cutoff current) 4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzor sounds.
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND TERMINAL
OF PHONO TERMINAL
PROBE
AC
UNIT
WITHSTANDING
VOLTAGE TESTER
+
-
OUT
IMPORTANT SERVICE NOTES (FOR U.K. ONLY)
(FOR U.K.)
LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
(FOR GERMANY)
CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO
BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.
VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA
EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.
ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I
STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.
ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.
VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.
STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT 
INSTRUMENT.
ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE
INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.
CHASSIS
SCREW
CONNECT THE PROBE
TO GND TERMINAL OF
CHASSIS SCREW

– 3 –
CD-C471H
Cassette deck section
Type: Compact cassette tape
Frequency response: 50 - 14,000 Hz (Normal tape)
Motor: DC motor with electronic governor x 1
Signal/noise ratio: 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Bias and erasure
system: AC
Tape speed: 4.76 cm/sec. (1-7/8 ips)
Wow and flutter: 0.2 % (DIN 45 511, playback)
(CD-C471H)
Wow and flutter: 0.15 % (WRMS)
(UK ONLY)
Heads: TAPE-1: Playback x 1
TAPE-2: Record/playback x 1
Erase x 1
Type: 3-way type [130 mm (5-1/8") woofer,
50 mm (2") tweeter and super tweeter]
Maximum input power: 80 W
Impedance: 6 ohms
Dimensions: Width; 200 mm (7-7/8")
Height; 300 mm (11-13/16")
Depth; 253 mm (10")
Weight: 2.7 kg (5.8 lbs.)/each
Type: 100 mm (4") full-range speaker
Maximum input power: 40 W
Impedance: 4 ohms
Dimensions: Width; 262 mm (10-5/16")
Height; 145 mm (5-3/4")
Depth; 201 mm (7-15/16")
Weight: 1.2 kg (2.6 lbs.)/each
Type: 100 mm (4") full-range speaker
Maximum input power: 20 W
Impedance: 8 ohms
Dimensions: Width; 170 mm (6-3/4")
Height; 122 mm (4-13/16")
Depth; 176 mm (6-15/16")
Weight: 0.7 kg (1.5 lbs.)/each
General
Power source: AC 230 V, 50 Hz
Power consumption: 112 W
Dimensions: Width; 270 mm (10-5/8")
Height; 303 mm (11-13/16")
Depth; 350 mm (13-13/16")
Weight: 6.9 kg (14.8 lbs.)
Amplifier section
Output power:
(CD-C471H) Front speakers;
MPO; 176 W (88 W + 88 W) (DIN 45 324)
RMS; 80 W (40 W + 40 W) (DIN 45 324)
72 W (36 W + 36 W) (DIN 45 500)
Center speaker;
MPO; 32 W (DIN 45 324)
RMS; 20 W (DIN 45 324)
14 W (DIN 45 500)
Surround speakers;
MPO; 32 W (DIN 45 324)
RMS; 20 W (DIN 45 324)
14 W (DIN 45 500)
(UK ONLY) Front speakers;
MPO; 176 W (88 W + 88 W) (10 % T.H.D)
RMS; 80 W (40 W + 40 W) (10 % T.H.D)
72 W (36 W + 36 W) (0.9 % T.H.D)
Center speaker;
MPO; 32 W (10 % T.H.D)
RMS; 20 W (10 % T.H.D)
14 W (0.9 % T.H.D)
Surround speakers;
MPO; 32 W (10 % T.H.D)
RMS; 20 W (10 % T.H.D)
14 W (0.9 % T.H.D)
Input terminals: Video/Auxiliary (audio signal) x 2;
500 mV/47 kohms
Output terminals: Front speakers; 6 ohms
Center speakers; 4 ohms
Surround Speakers; 8 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
Compact disc player section
Type: 3-disc multi-play compact disc player
Signal readout: Non-contact, 3-beam semi-conductor
laser pickup
D/A Converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)
Tuner section
Frequency range: FM; 87.5 - 108 MHz
MW; 522 - 1,620 kHz
LW; 153 - 281 kHz
SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
Specifications for this model are subject to change without
prior notice.
CENTER SPEAKER SYSTEM
SURROUND SPEAKER SYSTEM
CD-C471H
CP-C471H

CD-C471H
– 4 –
NAMES OF PARTS
Front Panel
1. (CD) Disc Tray
2. (CD) Disc Number Selector Buttons
3. (CD) Disc Skip Button
4. (CD) Open/Close Button:
5. (CD) Play Indicator:
6. (CD) Repeat Indicator:
7. (CD) Pause Indicator:
8. (CD) Disc Number Indicators
9. (TUNER) RDS Indicator
10. (TUNER) EON Indicator
11. (TUNER) Traffic Announcement Indicator: TA
12. (TUNER) Traffic Programme Indicator:TP
13. (TUNER) Traffic Information Indicator: TI
14. (TUNER) Programme Type Indicator: PTY
15. Dolby Pro Logic Indicator
16. Sleep Indicator
17. (TUNER) FM Stereo Mode Indicator: ST
18. (TUNER) FM Stereo Indicator:
19. Extra Bass Indicator: X-BASS
20. (CD/TUNER) Memory Indicator
21. (TAPE) Direction Indicators
22. (TAPE2) Reverse Mode indicator:
23. (TAPE2) Record indicator
24. Timer Indicator
25. Spectrum Analyzer/Volume Level/Balance Indicator
26. On/Stand-by Button
27. Bypass Button
28. Center Mode Buttons: NORMAL/PHANTOM
29. Extra Bass Button: X-BASS
30. Volume Up/Down Buttons:
31. Function Selector Buttons
32. Headphone Socket
33. (TUNER) Programme Type/Traffic Information
Search Button
34. (TUNER) ASPM Button
35. (TUNER) Display Mode Selector Button
36. (TUNER) EON Button
37. Clock Button
38. Timer/Sleep Button
39. (TAPE2) Record Pause Button:
40. (CD/TAPE) Stop Button:
41. Equalizer Selector/Demo Mode Button
42. (CD) Synchro Record Button
(TAPE) Dubbing Start Button
43. (TUNER) Beat Cancel Button
(TAPE) Dubbing Start Button
44. Tuning and Time Up/Down Buttons:
45. Memory/Set Button
46. (CD) Track Down/Review Button:
(TUNER) Preset Down Button:
47. (TAPE 2) Reverse Play Button:
48. (TAPE 1) Play Button/(TAPE 2) Forward Play Button/
(CD) Play/Repeat Button:
49. (CD) Track Up/Cue Button/
(TUNER) Preset Up Button:
50. (TAPE2) Reverse Mode Button
51. (TAPE 1) Cassette Compartment
52. (TAPE 2) Cassette Compartment
CD-C471H 1234
26 27 28
31
32 33 35 36
29 30
34
51 52
123
X-BASS
kHz
MHz
RDS
EON TA PTY TP
63 250 1k 4k 16k
SLEEPST
MEMORY
PRO LOGIC
REC
TI
56789
13
14
10 11 12
17
18
19
15 16
20
21 22 23 24 25
40
3937 41
4644 47
42
45 48 49 50
38 43

– 5 –
CD-C471H
Rear Panel
1. CD Digital Output Socket
2. AC Power Input Socket
3. MW/LW Loop Aerial Input Socket
4. FM 75 ohms Aerial Socket
5. Video/Auxiliary (Audio Signal) Input Sockets
6. Sub Woofer Output Socket
7. Front Speaker Terminals
8. Center Speaker Terminals
9. Surround Speaker Terminals
Speaker Section
Front Speaker
1. Super Tweeter
2. Tweeter
3. Woofer
4. Bass Reflax Duct
5. Speaker Wire
Center Speaker
6. Full-Range Speaker
7. Speaker Wire
Surround Speaker
8. Full-Range Speaker
9. Speaker Wire
Remote Control
1. Remote Control Transmitter LED
2. Surround Level Buttons:
3. Center Level Buttons:
4. Dolby Pro Logic Button
5. Center Mode Button
6. Test Tone Button
7. Balance Control Buttons:
Tuner control section
8. Programme Type/Traffic Information
Search Button
9. Preset Up/Down Buttons:
CD Control section
10. Disc Skip Button
11. Play/Repeat Button:
12. Memory Button
13. Clear Button
14. Pause Button:
15. Track Down/Review Button:
16. Track Up/Cue Button:
17. Stop Button:
18. Random Button
CD-C471H
CD-C471H
1
2
3
4
5
6
789
1
5
3
4
2
6
7
8
9
Left speaker Right speaker
1
2
3
4
5
6
8
7
9
10
12 13 14 15 16 17 18
19 20 21 22
25
26
27
28
23
24
29
11
Tape control section
19. (TAPE 2) Reverse Play Button:
20. (TAPE 1/2) Stop Button:
21. (TAPE 1) Play Button/
(TAPE 2) Forward Play Button:
22. (TAPE 2) Record Pause Button:
23. (TAPE 2) Rewind Button:
24. (TAPE 2) Fast Forward Button:
Common section
25. Equalizer Mode Button
26. Function Selector Buttons
27. On/Stand-by Button
28. Extra Bass Button: X-BASS
29. Volume Up/Down Buttons:
CP-C471H
GBOXS0006AWM5
GBOXS0007AWM5

CD-C471H
– 6 –
OPERATION MANUAL
ON/ STAND-BY CLOCK
MEMORY/ SET
TUNING/ TIME ( / )
AM 12:00 AM 0:000:00
2
3
4
7
6
5
8
9
SETTING THE CLOCK
1
Press the ON/STAND-BY button to enter the stand-by mode.
2
Press the CLOCK button.
3
Within 5 seconds, press the MEMORY/SET button.
4
Press the TUNING/TIME ( or ) button to select the time display mode. "0:00" → The 24-hour display will appear. (0:00 - 23:59) "AM 12:00" →The 12-hour display will appear. (AM or PM 12:00 - 11:59) "AM 0:00" →The 12-hour display will appear. (AM or PM 0:00 - 11:59)
●Note that this can only be set when the unit is first installed
or it has been reset (see page 30).
5
Press the MEMORY/SET button.
6
Press the TUNING/TIME ( or ) button to adjust the hour.
●Press the TUNING/TIME ( or ) button once to advance
the time by 1 hour. Press for more than 0.5 seconds to ad- vance continuously.
●When the 12-hour display is selected, "AM" will change auto-
matically to "PM".
7
Press the MEMORY/SET button.
8
Press the TUNING/TIME ( or ) button to adjust the minutes.
●Press the button for at least 0.5 seconds to change the time
in 5-minute intervals.
●The hour setting will not advance even if minutes advance
from "59" to "00".
9
Press the MEMORY/SET button.
●The clock starts operating from "0" seconds. (Seconds are not
displayed.)
Note: ●In the event of a power failure or when the AC power lead
is disconnected, the clock display will go out. When the AC power supply is restored, the clock display will flash on and off to indicate the time when the power failure occurred or when the AC power lead was disconnected. If this happens, follow the procedure below to change the clock time.
To change the clock time: When the unit is in the stand-by mode:
●When the unit is in the demonstration mode, press
the DEMO button to enter the clock mode.
① Press the MEMORY/SET button. ② Perform steps 6 - 9 above.
When the unit is on:
① Press the CLOCK button. ② Within 5 seconds, press the MEMORY/SET button. ③ Perform steps 6 - 9 above. ③ Perform steps 6 - 9 above.
To see the time display:
Press the CLOCK button.
●The time display will appear for about 5 seconds.
To change the time display mode:
① Press the ON/STAND-BY button to enter the stand-by mode. ②
In this example, the clock is set for the 24-hour (0:00) system.
Whilst pressing down the VOLUME button and the TUN- ING/TIME button, hold down the ON/STAND-BY button for at least 1 second.
Caution:
●The operation explained above will erase all data stored in
memory including clock and timer settings, and tuner and CD presets.
Notes concerning use: ●Replace the batteries if the operating distance becomes re-
duced or if operation becomes erratic.
●Periodically clean the transmitter LED on the remote control
and the sensor on the main unit with a soft cloth.
●Exposing the sensor on the main unit to strong light may
interfere with operation. Change the lighting or the direction of the unit.
●Keep the remote control away from moisture, excessive heat,
shock, and vibrations.
15
15
0.2 m - 6 m (8" - 20')
PREPARATION FOR USE
RESETTING THE MICROCOMPUTER
Reset the microcomputer under the following conditions:
●To erase all of the stored memory contents (clock and timer
settings, and tuner and CD presets).
●If the display is not correct. ●If the operation is not correct.
Note: ●To erase the tuner preset memory, see "To erase all of the
contents of preset memory" on page 18.
1
Press the ON/STAND-BY button to enter the stand-by mode.
2
While pressing down the VOLUME button and the TUN- ING/TIME button, hold down the ON/STAND-BY button for at least 1 second.
1
2
2

– 7 –
CD-C471H
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
3.Takeoff nylonbandsor wire holderswherethey needto
beremovedwhendisassemblingtheunit.Afterservicing
theunit,be sure torearrangethe leadswherethey were
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 7-2
Figure 7-3
1 Top Cabinet 1. Screw ..................... (A1) x4 7-1
2 Side Panel 1. Screw ..................... (B1) x6 7-1
(Left/right)
3 CD Player Unit/ 1. Turn on the power supply, 7-2
CD Tray Cover open the disc tray, take out
the CD cover, and close.
(Note 1)
2. Hook...................... (C1) x3
3. Hook...................... (C2) x2
4. Screw .................... (C3) x1
5. Socket ................... (C4) x3
4 Back Board 1. Screw .................... (D1) x12 8-1
2. Socket ................... (D2) x1
5 Tuner PWB 1. Screw .................... (E1) x1 8-1
2. Socet ..................... (E2) x1
6 Main PWB 1. Screw .................... (F1) x1 8-2
2. Socket ................... (F2) x2
3. Flat Wire................ (F3) x2
4. Tip Wire................. (F4) x1
5. Socket ................... (F5) x1
7 Front Panel 1. Screw .................... (G1) x2 8-2
2. Hook...................... (G2) x2
8 Display PWB/ 1. Screw .................... (H1) x12 8-3
Switch PWB
9 Tape Mechanism 1. Open the cassette holder. 8-3
2. Screw .................... (J1) x5
10 Power Amp. PWB 1. Screw .................... (K1) x4 8-4
2. Socket ................... (K2) x2
3. Push Rivet ............ (K3) x4
11 CD Servo PWB 1. Screw .................... (L1) x1 8-5
2. Cover .................... (L2) x4
12 Turntable 1. Screw .................... (M1) x1 8-6
2. Cover .................... (M2) x1
13 CD Player Base 1. Screw .................... (N1) x2 8-6
2. Guide .................... (N2) x2
14 CD Changer 1. Screw .................... (P1) x4 8-7
Mechanism
15 CD Mechanism 1. Screw .................... (Q1) x1 8-7
STEP REMOVAL PROCEDURE FIGURE
Note 1:
How to open the changer manually. (Fig.7-3)
1. Insert the tip of fine screwdriver into the hole of CD player
base, and press down the worm wheel < A > .
2. Then, turn fully the lock lever in the arrow direction through
the hole on the loading chassis bottom in this state.
After that, push forward the CD player base.
Figure 7-1
CD-C471H
CD-C471H
( B1 ) x2
ø3 x8mm
( B1 ) x2
ø3 x8mm ( B1 ) x2
ø3 x8mm
Top Cabinet
Side Panel
(Right)
Back Board

Side Panel
(Left)
( A1 ) x2
ø3 x12mm
( A1 ) x2
ø3 x12mm
CD Tray Cover
CD Player Unit
( C3 ) x1
ø3 x8mm
Hook
( C1) x3
( C2 ) x1
( C4 ) x3
Back Board
Main PWB
Front Panel
1
1
2
A
Pull
(C2) x1
LOCK
LEVER
< A >

CD-C471H
– 8 –
( D1 ) x2
ø3 x10mm
( E1 ) x1
ø3 x10mm
( D1 ) x1
ø3 x10mm
Main PWB
Tuner
PWB
Front Panel
( D1 ) x9
ø3 x8mm
( D2 ) x1
( E2 ) x1
Back Board
( F2 ) x2

( F3 ) x1

(F5) x1

( F4 ) x1

( F1 ) x1
ø3 x10mm
( G1 ) x2
ø3 x8mm
( G2 ) x1
( G2 ) x1
Main PWB
( F3 ) x1

Push
Push
Front Panel
Tape
Mechanism
Power Amp. 
PWB
Display 
PWB
Switch PWB
Open
Front Panel
( H1 ) x3
ø3 x10mm
( H1 ) x9
ø3 x10mm
( J1 ) x5
ø3 x10mm
Tape
Mechanism Cassette
Holder
(Left/Right)
( K1 ) x4
ø3 x12mm ( K2 ) x1
( K2 ) x1
( K3 ) x4 Power Amp. 
PWB
Power 
Transformer
( L1 ) x1
ø3 x10mm
( L2 ) x2
( L2 ) x2 Loading chassis
CD Servo PWB
( N1 ) x1
ø3 x10mm
( N1 ) x1
ø3 x10mm
( M1 ) x1
ø3 x10mm
Washer
Turntable
CD Player Base
( M2 ) x1
( N2 ) x1
( N2 ) x1
Loading chassis
( P1 ) x4
ø3 x12mm
( Q1 ) x1
ø2.6 x10mm
CD Changer
Mechanism
CD Mechanism
Shift Lever
CD Player Base
Figure 8-1
Figure 8-2
Figure 8-3
Figure 8-4
Figure 8-5
Figure 8-6
Figure 8-7
Be careful when installing the CD changer mechanism.
InstalltheCDchangermechanismontheCDplayerbaseafter
the shift lever has been set in the highest position.

– 9 –
CD-C471H
CP-C471H
1 Front Speaker 1. Net.......................... (A1) x1 9-1
2. Fromt Panel ........... (A2) x1
3. Screw ..................... (A3) x2 9-2
4. Screw ..................... (A4) x4
5. Screw ..................... (A5) x2
STEP REMOVAL PROCEDURE FIGURE CP-C471H
Figure 9-2
Note:
The center and SURROUND speakers can be easily disas-
sembled.Thereforethedisassemblingmethodisnotdiscribed.
For details refer to the disassembling drawing in the Parts
Guide.
Figure 9-1
Screwdriver
Net
( A1 ) x1
Front Panel
( A2 ) x1
Woofer
Tweeter
( A3 ) x2
ø3 x10mm
( A5 ) x2
ø3 x10mm
( A4 ) x4
ø4 x14mm
Woofer
Tweeter
Super
Tweeter

CD-C471H
– 10 –
Figure 10-2
How to remove the pickup (See Fig. 10-2)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2)
x 1 pcs.
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4)x 1 pcs.
3. Remove the pickup.
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, 14 and 15 of the disassembly method
to remove the CD mechanism.
How to remove the turntable up/down motor
(See Fig. 10-1)
1. Remove the screws (A1) x 2 pcs., to remove the turntable
up/down motor.
Figure 10-1
( B1 ) x2
ø 2.6 x6mm
Shaft
( B2 ) x1
Stop Washer
( B3 ) x1
Gear
( B4 ) x1
CD Mechanism
Pickup
( A1 ) x2
ø2 x5mm
Turntable Up/Down Motor

– 11 –
CD-C471H
MECHANISM SECTION
• Driving Force Check
Torque Meter Specified Value
Play: TW-2412 Tape 1: Over 80 g
Tape 2: Over 80 g
• Torque Check
Torque Meter
Tape 2
Play: TW-2111 30 to 60 g. cm 30 to 100 g.cm
Fast forward: TW-2231 — 50 to 100 g.cm
Rewind: TW-2231 — 50 to 100 g.cm
Specified
Value
Adjusting
Point Instrument Connection
Test Tape
Normal MTT-111 VRM1 3,000 ± Speaker
speed 30 Hz terminal
ADJUSTMENT
Specified Value
Tape 1
• Tape Speed
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
IF 450 kHz 1,620 kHz T351 *1
MW Band — 522 kHz (fL): T306 *2
Coverage 1.1 ± 0.1 V
MW 990 kHz 990 kHz (fL): T302 *1
Tracking
LW Band — 153 kHz (fL): T305 *2
Coverage 1.5 ± 0.1 V
LW 225 kHz 225 kHz (fL): T301 *1
Tracking
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
• FM
Notes:
1: Description of the "FM IF Adjustment" is not carried on this
Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.
2: The parts in the FM front end section are prepared in a
complete unit, so you can't obtain each part individually
Adjusting
Parts Instrument Connection
Frequency
Display
Frequency
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
98.00 MHz 98.00 MHz VR351 Input: Antenna
(25 dBµV) Output: Speaker
Terminal
Figure 11 ADJUSTMENT POINTS
TUNER SECTION
*1. Input: Antenna, Output: TP302
*2. Input: Antenna, Output: TP301
VRM1
TAPE
SPEED
TAPE MECHANISM PWB
TUNER PWB
TP301
CNP301
SO301
ANTENNA
TERMINAL
FE301
TP302
R357
T351 T306
T305 T302 T301
VR351
AM IF FM MUTE
LEVEL
MW BAND
COVERAGE MW TRACKING LW TRACKING
LW BAND
COVERAGE

CD-C471H
– 12 –
TEST MODE
Figure 12-2 Figure 12-3
Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary
to readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.
• Automatic adjustment item
1. Focus offset (Fig.12-2)
2. Tracking offset (Fig.12-3)
3. E/F balance (tracking error balance) (Fig.12-4)
4. RF level AGC function (HF level: constant)
5. RF level automatic follow-up of the tracking gain
This automatic adjustment is performed each time a disc is changed. Therefore,
each disc is played back using the optimal settings.
CD SECTION Figure 12-1
Note:
Only in STOP state it is possible to slide the pickup with the ( ) or ( ) key.
VOL. --- Last memory
BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF
Canceling method - POWER OFF
• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<REC. PAUSE> + <CD> + <POWER> TEST: CD operation test
• TEST mode
Function — CD test mode
Setting of TEST mode
Indication of CD TST mode (Fig.12-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the ( ) or ( ) key.
<MEMORY>
LASER ON
<PLAY> key input Press <STOP> key. Stop
TOC. IL is performed, and the ordinary PLAY is performed.
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9
<Disc Number 3> key: Track 15
<MEMORY>
Tracking on the spot.
SERVO OFF PLAY
<MEMORY>
Tracking on the spot.
SERVO ON PLAY STOP
Figure 12-4
IL is not performed.
<STOP>
2
1
10ms
0.50 V
IC1 20 FE
10ms
0.50 V
IC1 7 TE
Enlarged
View
TRACKING
OFF-SET
ADJUST
2
1
TO
TE
200 ms
1V/diV
IC 1 15
200 ms
1V/diV
IC 1 7
TRACKING/
ERROR
BARANCE
ADJUST
2
0.1s
0.50 V
IC1 20 FE
0.1s
0.50 V
IC1 7 TE
1
FOCUS
OFF-SET
ADJUST
TRACKING
OFF-SET
ADJUST

– 13 –
CD-C471H
SP out L-ch Input signal is output.
(SO901) R-ch Input signal is output.
(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch Almost no output (only omitting component)
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch Input signal is output.
(SO901) SP out S-ch Almost no output (only omitting component)
State of set Dolby Pro Logic Dolby Pro Logic On mode
Output point Bypass mode Normal mode Phantom mode
IC501 12 pin L-out Output enabled state Output enabled state Output enabled state
11 pin R-out Output enabled state Output enabled state Output enabled state
IC501 9 pin C-out No output Output enabled state No output
IC501 10 pin S-out No output Output enabled state Output enabled state
SP OUT L-ch Output enabled state Output enabled state Output enabled state
(SO901) R-ch Output enabled state Output enabled state Output enabled state
SP OUT C-ch No output in MUTE (Q604) state Output enabled state No output in MUTE (Q604) state
(SO901)
SP OUT S-ch No output in MUTE (Q603) state Output enabled state Output enabled state
(SO901)
EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD
Test tone output
• Pro Logic ON Normal mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only C-ch
↑ ↓
Output of only S-ch ←Output of only R-ch
The test tone (noise) is repeatedly output for output period
(2 sec).
In this case the following indication appears repeatedly.
→TEST →L-ch →C-ch
↑ ↓
S-ch ← R-ch
• Pro Logic ON Phantom mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only R-ch
↑ ↓
←Output of only S-ch
The test tone (noise) is repeatedly output for output period
(2 sec).
In this case the following indication appears repeatedly.
→TEST → L-ch → R-ch
↑↓
←S-ch←
Outline
• Namely, two speakers are connected in parallel to one
amplifier.
•IntheProLogicBYPASSmodetheamplifierforC-ch(center
channel)andtheamplifierforS-ch(surroundchannel)arein
MUTE state. The SP output is cut.
• In the normal mode of Pro Logic ON mode the amplifiers for
C-ch and S-ch are in operative state, so that the SP output
appears.
•InthePhantommodeofPro LogicON modethe amplifierfor
C-ch is in MUTE state, so that the SP output is cut. The
amplifierforS-ch(surround) is inoperativestate, so that the
SP output appears
•State of element output and terminal output in specific mode
Relation between VIDEO IN input and output in Pro Logic
ON state
(1) L-ch/R-ch same phase input into VIDEO IN input jack in
VIDEO Function mode
Output point Normal mode
Output point Phantom mode
(2) L-ch/R-ch reverse phase input into VIDEO IN input jack in
VIDEO Function mode
(Reverse phase: Phase difference between L and R is 180°)
Output point Normal mode
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch Almost no output (only omitting component)
(SO901) SP out S-ch Input signal is output.
Output point Phantom mode
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch Input signal is output.
•Accordingly,ifyouwanttooutputsignalwaveformtoC-chSP
out, give the same phase input into L-ch/R-ch INPUT in the
Pro Logic Normal mode.
Ifoneofchannelsreceivesinput,C-chdoesnotoutput. Only
L-ch or R-ch outputs.
•IfyouwanttooutputsignalwaveformtoS-chSPout,youcan
use either Normal mode or Phantom mode. However, 180°
reverse phase input must be given to L-ch/R-ch INPUT.

CD-C471H
– 14 –
Note:
When the unit is in the EON stand-by mode and a pro-
grammeis selected,the unitwill display"TI" insteadof "TP"or
"TA".
RDS (Radio Data System) OPERATION
Receiving FM Stations with RDS (Radio Data
System)
RDSisabroadcastingservice whicha growingnumberofFM
stationsarenowproviding.ItallowstheseFMstqtionstosend
additionalsignalsalongwiththeir regularprogrammesignals.
For example, the stations send their station names, and
information about what type of programme they broadcast,
such as sports or music, etc.
When tuned to an FM station which provide the RDS service,
the RDS will appear, the station frequency (and then the
station name if sent) is displayed.
The TP (Traffic Programme) will appear on the display when
the received broadcast carries traffic annoucements, and the
TA (Traffic Annoucement) will appear whilst a traffic
announcement is being received. EON will appear whilst the
EON (Enhanced Other Networks information) data is being
broadcast.
Note:
When the TP and TA appear at the same time, an announce-
ment is being made.
When only the TA appears, an announcement is not being
made. (See page 17.)
Information Provided by RDS
With the CD-C471H, you can display two types of RDS
service. To show them in the display, press the DISPLAY
MODE button.
Each time you press the DISPLAY MODE button, the display
will change to show the following information.
PS (Programme Service): Station names commonly
known will be diaplayed.
"NOPS"appearsifnosignal
is being sent.
PTY (Progamme Type): Programme type will be
diplayed.
"NO PTY" appears if no
signal is being sent.
Station Frequency: Station frequencies.
DescriptionsofthePTY(ProgrammeType)codes,TP(Traffic
Programme) and TA (Traffic Announcement)
Eith the CD-C471H, you can search for and receive the
forrowing PTY, TP and TA signals.
NEWS: News
AFFAIRS: Topical programme expanding on the
current news or affairs
INFO: Programmes on medical service, weather
forecast, etc.
EDUCATE: Educational programmes
DRAMA: Radio plays
CULTURE: Programmesonnationalorregionalculture.
SCIENCE: Programmes on national sciences and
technology.
VARIED: Other programmes like comedies or
ceremonies
POP M: Pop music
ROCK M: Rock music
M.O.R. M: Middle-of-the-road music (usually called
"easy listening")
LIGHT M: Light music
CLASSICS: Classics
OTHER M: Other music
ALARM: Emergency broadcasts
NONE: no Programme type (receive only)
TP: Broadcasts which carry traffic
announcements
TA: Trafficannouncementsarebeingbroadcast
at present.
DISPLAY MODE

– 15 –
CD-C471H
No
ASPM, summary operation
Hold down the ASPM button for 3 more second.
“ASPM” blinks in the display. Preset CH memory full over? No operate. After displayed “END”. Return to
previous station.
SD (TUNE) DET out OK? If count 1st OK? If count 2nd OK? RDS signal or not? PI—identify
Comparing PI cord same or not? between current receiving PI and before PI which is already memorized by ASPM on this time.
Comparing freg. same or not? between current receiving frequency and (already) previously memorized frequency.
Memorized to the lowest vacant preset channel.
Preset CH memory become full over?
Begin to ASPM SCAN from the next CH-SPAN again.
Repeat and continue with same format ASPM operation untill 108 MHz. After reached 108 MHz, displayed the TTL quantity of memorized stations. And return to the previous receiving freq. automatically. Displayed the TTL quantity of memo- rized stations by ASPM operation on this time. And return to the previous receiving freq. automatically.
Yes
No Yes Yes Yes Yes
No
No
No
No No No Effect
Pass
No effect
Pass
No effect
Pass
No effect
Pass
No effect
Yes
No
Yes
Compare the field strength of current receiving signal. Is receiving signal stronger than signal which has same PI cord and is already memorized to preset memory ahead of this receiving time?
Yes No effect
No No effect
Comparing freg. same or not? Between current receiving frequency and (already) previously memorized frequency.
Yes Memorized to the lowest
vacant preset channel.
Yes No effect
Begin to scan start 87.50 → 108.00 MHz

CD-C471H
– 16 –
4. No adjust type (None adjusting circuit.)
5. Added EON button.
6. Need to change RDS logo due to add EON feature.
7. Added EON—TI, EON—PTY function.
3. Summary of CD-C471H RDS—EON operation
EON—PTY: Select and set the desired “PTY” → stand-by → switch to ON(other network) Station at the
start of desired PTY automatically → stay and listen to PTY of ON station → switch back toTN(This net) station
automatically at the end of PTY(ON) i.e. after changing to another PTY(exceptAFFAIRS) or cancelling to receive PTY of ON
station midway.
EON—TI: Select and set the “TI” → stand-by → switch to ON station at the start of traffic announcement automati
cally → stay and listen to TA of ON station → switch back to TN station autmatically at the end of TA(ON).
ie after TA(ON) is over or cancelled to receive TAof ON station midway.
When switching TN → ON station.
In case of exist 2 more stations having the desired(specified) “PTY” or “TI”, the receiver will select and switch toON station
comparing field strength at the same time. But when the frequency of ON station exists in the preset-memory, then reciver
switches straight to that ON station(CH), without comparing field strength so can make a quick switching from TN—ON sta
tion. Preset memory takes priority of switching TN—ON station.
therefore ASPM is usefull not only for PTY search but also for rapid EON switching. Anyway CD-C471H EON is basi-
cally stand-by and receiving method, along with the Guidelines for EON implementation.
•ASPM SCAN: 87.50MHz →108.00 MHz.
• Only RDS signal is memorized byASPM because RDS signal has PI code and is suitable and convenient for ASPM operation.
ASPM
Comparing field strength, only one strongest RDS station is memorized of all stations (repeater relay stations) that have same
PI code.
Same PI code — freq: different
(AF’S)
PS: same
PTY: same
Each PI has AF’S list by individually.
Exa: P1 has f1, f2, f3(same PTY).
P2 has f4, f5(same PTY).
[For example] Pickup and memorized to preset CH.
f 1
f 2 f 3
P 1 (PI cord)
PS 1 (Station Name)
f 5 f 4
P 2
PS 2
f 6
f 7 f 8
P 3
PS 3
f 9 f 10
f 11 f 12 f13
P 4
PS 4
Select signals (f1, f5, f7, f10) are memorized in the preset memory byASPM.
• If tentative - ASPM operation is repeated intententionally, never memorized (over write) at the same frequecy.
1st time ASPM → strongest stations of each pi are memorized.
ASPM is not only very usefull for PTY search, but also EON operation.
2nd time ASPM →2nd strong stations of each pi are memorized and so on.
PTY search function is equal to FM band search function as a result.
1. Introduction of RDS for CD-C471H
CD-C471H RDS function is equal to adding EON feature to the current CD-C75H RDS.
EON feature is EON—PTY and EON—TI.
Although PTY and TI indicators are separated, PTY contains TI in the PTY items (software) like current PTY search items.
NEWS, AFFAIRS, INFO, ALARM, TI (TTL 17 kinds)
EON—PTY EON—TI
Can select and stand-by Can select and stand-by
EON—PTY and EON—TI are basically stand-by →receive the desired program of ON station.
2.The difference point from current CD-C75H RDS. (CD-C75H — CD-C471H)
1. PTY item: added TA.TTL 18 kind.
2. Each “TP”, “TA” ind. light up or go out individually.
“TA” ind. doesn’t light up on current model, CD-C75H due to none EON—TI.
3. Added 3 indicators(in FL) due to adding EON feature.
EON: Lights up only during receiving EON data (14A).
TI: During EON-TI stand-by →Light up
During receiving ON station. →blink.
PTY: During EON-PTY stanb-by →Light up
During receiving ON station. →blink.
---
---
↑↑

– 17 –
CD-C471H
EON summary notice for reference
1. EON-TI/PTY EON stand-by can be set, only when EON ind. lights up.
While EON ind. goes out (NO EON STATION), EON stand-by can't be set.
If the EON button is pressed, then “NO EON” is indication the display.
2. EON-TI/PTY Even if switch back ON→TN station continue to keep EON stand-by.
3. EON-TI Don’t switch TN→ON during TN broadcast TA. (same item)
4. EON-TI/PTY
EON can be cancelled during receiving ON station by pressing EON button if necessary and
switch back ON
→ TN.
5. EON-TI/PTY EON stand-by is perfectly cancelled (cleared) by pressing EON button 2 times during stand-by or
powerOFF or Tun Up/ Down or change band or recall pre-set CH.
6. EON-TI/PTY After setting EON stand-by, stand-by items can be confirmed by pressing EON button one time.
7. EON-TI/PTY EON button function: •EON setting
•Confirm stand-by items
•Cancel (ON→TN)
•EON clear cancel (2 times)
8. EON-TI/PTY After setting EON-TI and EON-PTY stand-by, if when EON data is not transmitted, EON ind goes out
and EON stand-by is automatically cancelled display “NO EON”.
9. EON-TI EON-TI stand-by can't be set. When TP=0,TA=0(TN) even if EON ind. lights up and the EON button is
pressed then “NO TI” is indication the display.
10. EON-PTY Don’t switch TN→ON during TN broadcast same specified PTY. (same item of PTY)
11. EON-TI/PTY Switch TN→ON→TN station one cycle.
Never switch TN→ON1→ON2→Other net to other net station.
12. EON-TI/PTY After switch TN→ON station. When ON station is NO RDS, NO signal, TA=OFF or different PTY items.
The receiver switch back ON→TN displaying “NO READY”.
13. During receive ON station. when ON station become to be NO RDS, NO signal, TA=ON to OFF or
different PTY item, The receiver switch back ON→TN.
14. EON-TI/PTY Switch TN→ON in case of 2 more stations exist, comparing field strength and switch to thestrongest
station, if these signals are same strength, switch to the first previous station.
If same frequency as AF'Sexists in the preset memory, then switch TN→ON (preset memory station)
straight.
In case of exist 2 more preset memories of AF’S,then switch to the preset CH which taken in EON DATA
first, also in this case no concern to field strength.
15. Even if switch TN→ON preset memory straight, that ON station is very weak signal, then search another
AF'S (ON) station comparing field strength and switch to the strongest station as a result. Of all atations
of AF'S are very weak or no good condition, then, switch back ON→TN automatically display "NO
READY".
16. EON-TI/PTY No linkage volume, power ON/OFF, and switch function.
Traffic Programme code
(TP) Traffic Announcement code
(TA) Applications
OFF OFF This programme does notcarry traffic announcements nor does
it refer, via EON, to a programme that does.
OFF ON This programmecarries EON information about another
programme which gives traffic information.
ON OFF This programme carries traffic announcements but none are
being broadcast at present and may also carry EON information
about other traffic announcements.
ON ON A traffic announcement is being broadcast on this programme at
present.

CD-C471H
– 18 –
SW723 REC PAUSE ON—OFF
SW724 TUNING UP/TIME ON—OFF
SW725 VOLUME UP ON—OFF
SW726 X-BASS ON—OFF
SW728 STOP ON—OFF
SW729 FWD ON—OFF
SW730 FF/PRESET UP ON—OFF
SW731 MEMORY SET ON—OFF
SW732 TUNING DOWN/TIME ON—OFF
SW733 VOLUME DOWN ON—OFF
SW734 EQUALIZER/DEMO ON—OFF
SW736 REVERSE MODE ON—OFF
SW737 REV ON—OFF
SW738 REW/PRESET DOWN ON—OFF
SW739 CD/TAPE1 EDIT ON—OFF
SW740 BEAT CANCEL (TAPE1 EDIT) ON—OFF
SWM 3 REC FWD ON—OFF
SWM 4 REC RVS ON—OFF
SWM 5 F.A.S. ON—OFF
SWM 6 CAM ON—OFF
SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW701 ON/STAND-BY ON—OFF
SW702 CLOCK ON—OFF
SW703 TIMER/SLEEP ON—OFF
SW704 DISC 1 ON—OFF
SW705 DISC 2 ON—OFF
SW706 DISC 3 ON—OFF
SW707 DISC SKIP ON—OFF
SW708 OPEN/CLOSE ON—OFF
SW709 CD ON—OFF
SW710 TUNER/BAND ON—OFF
SW711 TAPE ON—OFF
SW712 VIDEO/AUX ON—OFF
SW713 EON ON—OFF
SW714 PTY. /TI SEARCH ON—OFF
SW715 ASPM ON—OFF
SW716 DISPLAY MODE ON—OFF
SW718 CENTER MODE/PHANTOM ON—OFF
SW719 CENTER MODE/NORMAL ON—OFF
SW721 DOLBY PRO LOGIC BYPASS ON—OFF
•The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
( ) indicates AM
< > indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
•Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
•Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
•Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolyticcapacitor,theexpression“capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
•Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION
Figure 18 TYPES OF TRANSISTOR AND LED
2SC2236 Y
2SC2878 A
2SC380 O
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1268 GR
KTA1271 Y
KTC3199 GR
KTC3203 Y
2SC1845 F
2SD2012
2SD468 C
KRA107 M
KTA1273 Y
333GTH2
E
(1)C (2)B (3)
FRONT 
VIEW
B
(3)C (2)E (1)
FRONT 
VIEW
FRONT VIEW
KV1236Z23F
FRONT
VIEW

– 19 –
CD-C471H
Figure 19 BLOCK DIAGRAM (1/3)
1
2
3
4
5
98
6
7
20
12
13
24 25 30
31
3222
34
35 36
10 11
27 26 28 29
PU-IN SW
XL1
XIN
LD0
FIN2 JP–
CV+
SLC
SL1
FIN1 E F
TO
FD
SPO
NC
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
6
+5V
+5V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
DISC
MOTOR
M
M
M2
SLED
MOTOR
PICKUP UNIT
9
IC2
LC78622K
SERVO/SIGNAL
CONTROL
+B1
IC3
M56748FP
DRIVER
IC1
LA9241M
SERVO AMP.
6
9
8
15
+B1
( TO IC601 )
RES. CQCK. COIN SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE Q93
Q51
Q91
SL+. SL–. DRF
7
3
9
8
7
6
5
4
3
2
1
6
5
GND (D) MECHA UP GND (D) DISK NO. OPEN/CLOSE GND (D) M– M+ GND (M)
9
8
7
6
5
4
3
2
1
CNP10
M
+5V
62 64 45 3623 43
37
31
27
38 39
40 24 25
10 10
265853
10 12 20
32 40 43 44
5352515431302923271615
4144
Q1
+5V
+7.3V
Q52 +7.3V (+B1)
+12V (+B5)
CNP11
REGULATOR
TO MAIN SECTION
IC81
TA7291S
LORDING MOTOR
DRIVER
XOUT
EFMO EFMIN CLV+ JP–
CONT2 CONT1
RCHO
RVSS
LVSS
LCHO
VVDD
VDD
LVDD
RVDD
XVDD
SW1 OPEN/CLOSE
SW2 MECHA UP SW3 DISC No.
M3 LOADING
SOLM2
TO MAIN SECTION
CNS10
CNP12
6
5
CNP11
6
5
1
3
52
6
5
1
3
52 6
5
1
3IC99
CNS99
CNP99
DIGITAL
OUT
52
CNP11

CD-C471H
– 20 –
Figure 20 BLOCK DIAGRAM (2/3)
CNS11
1
2
3
14 34
43
22
7
75
65
66
14 15 16
37
865
40
41
33 20
48
71
8
2930
52 40
37
38
39
45
41
4243
2
22
23
31
49
50
51
67
68
69
70
72
76
80
56
25
24
23
61
51
60
52
54
59
53
57
55
63
49 18
42
6
43
5
42
4
26
6448
2
15 14
20
21
23 22 13
12
45
1
3
7
6
8
14
13
19
15
10
12
16
98
18
17
7
6
20
5
21
4
4
3
23
2
24
1
17
15
14
11 12
16
18
12
10
13
6
13
10
7
21
22
23
24
20
3
2917
98
5
42
7
5
43 6
21
1
20 11
15 16
1
2
58
5761
R
LREC
PB MUTE PB MUTE
MUTING
REC MUTE
MUTING
T1/T2
REC/PB
BAIS
+B5
SWM4
REC RVS
SWM3
REC FWD
SWM5
SWM6
MM1
TAPE
MOTOR
M
JK452
+B4
ICT21
LC72720
RDS
VDDA VSSA
MW/LW
ANT. MW/LW
OSC.
L341
BALUN
X352
4.5MHz
IC302
LC72131
PLL(TUNER)
FM IF DET/FM MPX/AM IF
IF
OUT
IC303
LA1832
+B4 CF351 X351
+B4
MPX
PHASE
Q361
SOLENOID
TA MOT H/L
RUN PULSE
DATA ENEBLE
~
~
SO301
ANTENNA
TERMINAL
MW/AM
ANTENNA
Q129
Q130 BEAT CUT
BAIS
BEAT CUT
R-OUT L-OUT
S-IN
+B4
BALANCE 4CH SP
MAIN SI
MAIN SO
MAIN SCK
SM
L354 LOW PASS
FILTER
TUNER MUTE
SD
VOLTAGE
REGURATER
+B4
+5V
QT21
–
VF2
(AC)
FL701
IC201
IX0171AW
MICROCOMPUTER
+B2
R-MUTE C-MUTE S-MUTE POWER
CAM SW
CLK
CAM SW
TA MOT SW
REC/PB
F.A.S
REC FWD
REC RVS
PB MUTE
T1/T2
BIAS
REC MUTE
S-OUT
VDD
VSS
CL
CE
DI
DRIVER
RUN PULSE
SOLM1
+B5
SOLENOID
SOLENOID QM03
PHM1
FAS SW
CAM SW F.A.S
REC RVS
REC FWD
MOTOR
DRIVER
DRIVER
QM02 TA MOT SW
TA MOT H/L
QM05
+B5
SWITCHING
Q117
Q118
Q121
Q122
L
R
VIDEO2VIDEO1
RL
IN
RL
L
R
R
L
L
R
R
L
FRONT
IN
CEN
T
RE
A
IN
X-BASS
RTINLTIN
VSSD
VDDD
X IN
X OUT
MPX IN
AMP.
FM +B
DO
CL
DI
CE
XT21
4.332MHz
XT21
VT
T305
T306
T301
T302
CF302
P.B
+B4
REF
T1/T2
NOR/
HIGH
ALC
REC
P.B.
PLAYBACK&RECORD AMP.
IC101
AN7345K
R REC
L REC
POP REDUCE
R
L
R NF
R(T2)
L(T2)
R(T1)
L(T1)
L NF
Q124 Q126
SWITCHINGSWITCHING
DO
CE
CLDI
CF301
FM FRONT END
FE301
Q360
MUTING
MPX
VCO
CUT
RL
Q353
Q354
MPX
IN
FM/AM
OUT
IF IN
SD
FM MONO/ST MONO/ST
AM RF IN
AFC
IN
OUT
VR351
FM MUTE LEVEL AM OSC
REG INOUT VCC
FM IF IN
AMP
FM IF
Q301
FM IF
FM OSC.
STEREO
AM IN
FM IN
FMOSC
T351
AM IF
GND
OSC.
FM
FM IF
AM RF
IC601
LC75396N
AUDIO PROCESSOR
TAPE 1
TAPE 2
Q128
L103
Q111
Q107
Q108
Q110
Q109
Q103,Q104
Q105,Q106
REC/PBREC
P.B
AC BIAS
P.B
REC/PB
HEAD
L-CH
R-CH
PB HEAD
L-CH
R-CH
ERASE
HEAD
AUX
AUX
TUNER
TAPE
CD
T1/T2 H/N
RRRLLL
GRAPHIC EQUALIZER
47
RT-IN LT-IN L-OUT R-OUT
CL
+B4
CL
DATA
DATA
ENABLE
X501
8
18 45 46 23 24
IC501
LV1035M
DOLBY PRO LOGIC
DECORDER
38
35
37
36
42 33
9
31 32
22
34
C-OUT
21
FROM CD UNIT
CNP11