Sharp CD-C811W User manual

CD-C811W/821W
– 1 –
CD-C811W
CD-C821W
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
SERVICE MANUAL
SHARP CORPORATION
No. S6938CDC811W/
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL ............................................................................................................2
VOLTAGE SELECTION..................................................................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 6
DISASSEMBLY.................................................................................................................................................................. 7
REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 9
ADJUSTMENT ................................................................................................................................................................. 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 12
TYPE OF TRANSISTOR AND LED ................................................................................................................................. 12
BLOCK DIAGRAM ........................................................................................................................................................... 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................18
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 40
TROUBLESHOOTING ..................................................................................................................................................... 41
FUNCTION TABLE OF IC................................................................................................................................................ 45
FL SEGMENT ...................................................................................................................................................................52
PARTS GUIDE/EXPLODED VIEW
Illustration: CD-C811W
Illustration: CD-C821W
1
SECTION CD-C811W CD-C821W
Surround Speaker None Used
DIFFERENCE BETWEEN
CD-C811W AND CD-C821W
0.8
CD-C811W mini component system consisting of
CD-C811W (Main unit), CP-C811W (Front speaker).
CD-C821W mini component system consisting of
CD-C821W (Main unit), CP-C821W (Front speaker)
and GBOXS0028AWM1 (Surround speaker).

CD-C811W/821W
– 2 –
SAFETY PRECAUTION FOR SERVICE MANUAL
WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANTTHATTHEFOLLOWINGPRECAUTIONSAREOBSERVEDDURINGSERVICINGTOPROTECTYOUREYES
AGAINST EXPOSURE TO THE LASER BEAM.
1-WHENTHECABINETISREMOVED,THEPOWERISTURNEDONWITDOUTACOMPACTDISCINPOSITIONANDTHE
PICK-UP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT
LOOK INTO THE PICK-UP LENS.
2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY
PRE-SET BEFORE SHIPMENT.
DO NOT ATTEMPT TO RE-ADJUST THE LASER PICK-UP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICK-UP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.
QACCB0008AW00
VOLTAGE SELECTION
The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction until the correct voltage figure is displayed in the window next to the adjustment screw.
Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCE0011AW00
92LCORDZ1652A
QACCL0002AW00
QACCZ0008AW00
92LPLUG027 92LPLUG155A
CAUTION
●This Mini Component System is classified as a CLASS
1 LASER product.
●The CLASS 1 LASER PRODUCT label is located on the
rear cover.
●Use of controls, adjustments or performance of proce-
dures other than those specified herein may result in
hazardous radiation exposure.
As the laser beam used in this compact disc player is
harmful to the eyes, do not attempt to disassemble the
cabinet. Refer servicing to qualified personnel only.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
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.
92LCORD577B

CD-C811W/821W
– 3 –
CP-C811W
Specifications for this model are subject to change without
prior notice.
SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
CD-C811W/821W
CP-C821W
●Front speaker section
Type: 2-way type [13 cm (5-1/4") woofer
and super tweeter]
Maximum input power: 30 W
Rated input power: 15 W
Impedance: 5.4 ohms
Dimensions: Width; 180 mm (7-1/8")
Height; 300 mm (11-13/16")
Depth; 215 mm (8-7/16")
Weight: 2.0 kg (4.4 lbs.)/each
●Surround speaker section
Type: 8 cm (3-1/4") full-range speaker
Maximum input power: 10 W
Rated input power: 5 W
Impedance: 16 ohms
Dimensions: Width; 170 mm (6-3/4")
Height; 170 mm (6-3/4")
Depth; 88 mm (3-1/2")
Weight: 0.6 kg (1.2 lbs.)/each
GBOXS0028AWM1
●General (CDC821W)
Power source: AC 110/127/220/230-240 V,
50/60 Hz
Power consumption: 47 W
Dimensions: Width; 270 mm (10-5/8")
Height; 300 mm (11-13/16")
Depth; 353 mm (13-7/8")
Weight: 5.5 kg (12.1 lbs.)
●Amplifier section (CDC821W)
Output power: MPO; 60 W (30 W + 30 W)
(10 % T.H.D.)
RMS; 40 W (20 W + 20 W)
(10 % T.H.D.)
RMS; 28 W (14 W + 14 W)
(0.9 % T.H.D.)
Output terminals: Front speakers; 5.4 ohms
Surround speakers; 16 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; 88-108 MHz
AM; 531 - 1,602 kHz
●General (CD-C811W)
Power source: AC 110/127/220/230-240 V,
50/60 Hz
Power consumption: 40 W
Dimensions: Width; 270 mm (10-5/8")
Height; 300 mm (11-13/16")
Depth; 353 mm (13-7/8")
Weight: 5.1 kg (11.2 lbs)
●Amplifier section (CD-C811W)
Output power: MPO; 33 W (16.5 W + 16.5 W)
(10 % T.H.D.)
RMS; 20 W (10 W + 10 W)
(10 % T.H.D.)
RMS; 16 W (8 W + 8 W)
(0.9 % T.H.D.)
Output terminals: Speakers; 8 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
●Front speaker section
Type: 10 cm (4") full range speaker
Maximum input power: 20 W
Rated input power: 10 W
Impedance: 8 ohms
Dimensions: Width; 180 mm (7-1/8")
Height; 300 mm (11-13/16")
Depth; 204 mm (8-1/16")
Weight: 2.0 kg (4.4 lbs)/each
●Cassette deck section
Type: Compact cassette tape
Frequency response: 50-14,000 Hz (Normal tape)
Motor: DC motor with electronic governor ×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: 0.15 % (WRMS)
Heads: TAPE-1: Playback ×1
TAPE-2: Record/playback ×1
Erase ×1

CD-C811W/821W
– 4 –
NAMES OF PARTS
CD-C811W/821W
■Front panel
11. Disc Tray
12. Disc Skip Button
13. Open/Close Button
14. (CD) Disc Number Indicators
15. (TAPE 2) Record Indicator
16. Sleep Indicator
17. Extra Bass Indicator
18. (CD/TUNER) Memory Indicator
19. Timer Play Indicator
10. FM Stereo Mode Indicator
11. Timer Record Indicator
12. (CD) Play Indicator
13. (CD) Repeat Indicator
14. (CD) Pause Indicator
15. FM Stereo Indicator
16. Timer Set Indicator
17. (CD) Track Down/Review Button
3 (TUNER) Preset Down Button
3 (TAPE 2) Rewind Button
18. (CD) Track Up/Cue Button
3 (TUNER) Preset Up Button
3 (TAPE 2) Fast Forward Button
19. Timer/Sleep Button
20. Clock Button
21. On/Stand-by Button
22. Extra Bass/Demo Mode Button
23. Function Selector Buttons
24. (TAPE 2) Record Pause Button
25. Memory/Set Button
26. (CD/TAPE) Stop Button
27. (TAPE) Play Button
3 (CD) Play/Repeat Button
28. Tuning and Time Up/Down Buttons
29. Volume Up/Down Buttons
30. Headphone Socket
31. (TAPE 1) Cassette Compartment
32. (TAPE 2) Cassette Compartment
3
2
1
29
67
8910
14
15
13
45
11
12
16
27 30 23 24 25
17 18
21
22
19
20
26 28
32
31
Illustration: CD-C821W

CD-C811W/821W
– 5 –
■Rear panel
11. AC Power Input Socket
12. AC Voltage Selector
13. Front Speaker Terminals
14. Surround Speaker Terminals (CD-C821W Only)
15. Span Selector Switch
16. FM 75 Ohms Aerial Terminal
17. Aerial Earth Terminal
18. AM Loop Aerial Terminal
■Front speaker
11. Super Tweeter
12. Woofer
13. Bass Reflex Ducts
14. Speaker Wire
■Surround speaker (CD-C821W Only)
15. Full-Range Speaker
16. Speaker Wire
■Remote control
11. Remote Control Transmitter LED
●CD control section
12. Disc Number Select Buttons
13. Memory Button
14. Pause Button
15. Clear Button
16. Track Down/Review Button
17. Track Up/Cue Button
18. Disc Skip Button
19. Play/Repeat Button
10. Stop Button
11. Random Button
●Tuner control section
12. Preset Up/Down Buttons
●Tape control section
13. (TAPE 1) Play Button
14. (TAPE 2) Record Pause Button
15. (TAPE 1/2) Stop Button
16. (TAPE 2) Play Button
17. (TAPE 2) Rewind Button
18. (TAPE 2) Fast Forward Button
●Common section
19. Function Selector Buttons
20. On/Stand-by Button
21. Extra Bass Button
22. Volume Up/Down Buttons
CD-C811W/821W
6
1
3
4
5
27
8
1
2
34
5
6
1
8
3
410
9
5
6
7
11
1314 1617 18
19
20 22
2
15
21
12
Illustration: CD-C821W
CP-C811W/821W
CD-C811W/821W
GBOXS0028AWM1

CD-C811W/821W
– 6 –
OPERATION MANUAL
TUNING/ TIME ( )
MEMORY/ SET
CLOCK
ON/ STAND-BY
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 20).
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. Hold it down to advance 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 TUNING/TIME ( or ) button once to advance
the time by 1 minute. Hold it down 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.)
To see the time display:
Press the CLOCK button. ●The time display will appear for about 5 seconds.
Note: ●The clock display will flash on and off at the push of the CLOCK
button when the AC power supply is restored after a power failure occurs or after the AC power lead is disconnected. If this happens, follow the procedure below to change the clock time.
To change the clock time:
①
Press the CLOCK button.
②
Within 5 seconds, press the MEMORY/SET button.
③
Perform steps 6 - 9 above.
To change the time display mode: ①
Perform steps 1 - 2 in the section "RESETTING THE MICRO- COMPUTER", on page 20.
②
Perform steps 1 - 9 above.
(Main unit operation)
In this example, the clock is set for the 24-hour (0:00) system.
AM 0:00AM 12:000:00
2 3
4
7
6 5
8 9
15
15
PREPARATION FOR USE
■
Remote control
Notes concerning use: ●Replace the batteries if the operating distance is reduced or if
the 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 in-
terfere with operation. Change the lighting or the direction of the unit.
●Keep the remote control away from moisture, excessive heat,
shock, and vibrations.
0.2 m - 6 m (8" - 20')
■
AM/FM interval (span)
The International Telecommunication Union (ITU) has established that member countries should maintain either a 10 kHz or a 9 kHz interval between broadcasting frequencies of any AM station. The illustration shows the 9 kHz interval zones (regions 1 and 3), and the 10 kHz interval zone (region 2). Before using the unit, set the SPAN SELECTOR switch (on the rear panel) to AM tuning interval (span) of your area.
To change the tuning zone: 1
Press the ON/STAND-BY button to enter the stand-by mode.
2
Set the SPAN SELECTOR switch to "50/9" for 9 kHz AM interval (50 kHz FM interval), and "100/10" for 10 kHz AM interval (100 kHz FM interval).
3
Whilst pressing down the button and the 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.
2
1,2
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. 1
Press the ON/STAND-BY button to enter the stand-by mode.
2
Whilst pressing down the button and the 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.

CD-C811W/821W
– 7 –
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.Take offnylonbands orwire holderswhere theyneed to
beremovedwhendisassemblingtheunit.Afterservicing
theunit, besureto rearrangethe leadswhere theywere
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 7-2
Figure 7-1
Figure 7-3
CD-C811W/821W
1 Top Cabinet 1. Screw .....................(A1) x4 7-1
2 Side Panel 1. Screw .....................(B1) x6 7-1
(Left/Right) 2. Hook .......................(B2) x2
3 CD Play Unit/ 1. Turn on the power supply, 7-2
CD Player Unit open the disc tray, take out
the CD tray cover, and close.
(Note 1)
2. Hook ...................... (C1) x5
3. Socket ................... (C2) x2
4 Back Board 1. Screw .................... (D1) x5 7-2
5 Main PWB 1. Screw .....................(E1) x3 8-1
2. Socket ....................(E2) x5
3. Flat wire.................. (E3) x3
6 Tuner PWB 1. Screw ..................... (F1) x2 8-1
7 Front Panel 1. Screw .................... (G1) x2 8-1
8 Headphones 1. Screw .................... (H1) x1 8-2
PWB 2. Guide ......................(H2) x1
9 Display PWB/ 1. Screw ..................... (J1) x8 8-2
Switch PWB 2. Hook ....................... (J2) x7
3. Socket .................... (J3) x1
10 Tape Mechanism 1. Open the cassette holder. 8-2
2. Screw ..................... (K1) x6
11 Turntable 1. Screw ..................... (L1) x1 8-3
2. Guide ...................... (L2) x1
12 Disc Tray 1. Screw .................... (M1) x2 8-3
2. Guide ..................... (M2) x2
13 CD Servo PWB 1. Screw .................... (N1) x1 8-4
(Note 2) 2. Socket ................... (N2) x4
14 CD Changer 1. Screw .....................(P1) x4 8-5
Mechanism
15 CD Mechanism 1. Screw ..................... (Q1) x1 8-5
REMOVAL PROCEDURE
STEP FIGURE
Note 1:
How to open the change manually.
1. 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. (Fig. 7-3)
Note 2:
1. After disconnecting the optical pickup connector, wrap the
front end of connector in conductive aluminum foil to
prevent damage to the optical pickup by static electricity.
Back Board
CD Tray Cover
CD Player
Unit
(C1) x3
(D1) x5
ø3x8mm
(C1) x1
(C2) x2
1
1
2
Pull
(C1) x1
CD Servo
PWB
Disc Tray
Front Panel
Top Cabinet
Front Panel
(A1)x2
ø3 x12mm
(A1)x2
ø3x12mm
(B2)x1
(B2)x1
Side Panel
(Left)
Side Panel
(Right)
(B1)x1
ø3x10mm
(B1)x1
ø3x10mm
(B1)x4
ø3x12mm
Back Board
LOCK
LEVER
CD-C811W/821W

CD-C811W/821W
– 8 –
Figure 8-3
Be careful when installing the CD changer mechanism.
InstalltheCDchangermechanismontheCDplayerbaseafter
the shift lever has been set in the highest position.
Figure 8-5
Figure 8-2
Figure 8-1
Figure 8-4
Main PWB
Main
PWB
Tuner PWB
Tuner PWB
(E2)x1
(E3)x2
Front Panel
(E2)x3
(E3)x1
(E2)x1
(E1)x3
ø3x8mm
(F1)x2
ø3x8mm
(G1)x2
ø3x8mm
Front Panel
(J2)x7
Display PWB
Switch
PWB
Open
Cassette
Holder
Tape Mechanism
(K1)x6
ø3x10mm
(J3)x1
(J1)x2
ø3x10mm
(J1)x6
ø3x10mm
(H1)x1
ø3x10mm (H2)x1
Headphones
PWB Tape Mechanism
PWB
Support PWB
(M1) x1
ø3x10mm
(M1) x1
ø3x10mm
(L1) x1
ø3x10mm
Turntable
Disc Tray
(L2) x1
(M2) x1
(M2) x1
CD Player Unit
Washer
(N1) x1
ø3x10mm
(N2) x2
(N2) x2 CD Player Unit
CD Servo PWB
(P1) x4
ø3x12mm
(Q1) x1
ø2.6x10mm
CD Changer
Mechanism
CD Mechanism
Shift Lever
CD Player Base

CD-C811W/821W
– 9 –
How to remove the turntable up/loading/down
motor (See Fig. 9-3)
1. Remove the screws (A1) x 2 pcs., to remove the turntable
up/down/loading motor.
How to remove the pickup (See Fig. 9-4)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2)
x 1 pc.
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4) x 1 pc.
3. Remove the pickup.
Figure 9-4
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, and 11 ~15 of the disassembly method
to remove the CD mechanism.
Figure 9-3
Note:
After disconnecting the optical pickup connector, wrap the
front end of connector in conductive aluminum foil to prevent
damage to the optical pickup by static electricity.
Figure 9-1
CP-C811W
STEP REMOVAL PROCEDURE FIGURE
1 Speaker 1. Net Frame...............(A1) x1 9-1
2. Duct Panel ..............(A2) x1
3. Screw......................(A3) x4
Speaker Box
(A1)x1
Net Frame (A3)x4
ø3x8mm
(A2)x1
Duct Panle
Woofer
(A1) x2
ø2.6x5mm
Turntable/Up/
Loading/Down Motor
Motor
PWB
(B1) x2
ø2.6x6mm
Shaft
(B2) x1
Stop Washer
(B3)x1
Gear
(B4) x1
CD Mechanism
Pickup
Figure 9-2
CP-C821W
STEP REMOVAL PROCEDURE FIGURE
1 Speaker 1. Net Frame...............(B1) x1 9-2
2. Duct Panel .............. (B2) x1
3. Screw......................(B3) x4
(B1)x1
Net Frame
(B2)x1
Duct Panle
(B3)x4
ø3x8mm
Woofer
Super Tweeter
Speaker Box

CD-C811W/821W
– 10 –
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 60 g.cm
Fast forward: TW-2231 — 60 to 120 g.cm
Rewind: TW-2231 — 60 to 120 g.cm
Specified
Value
Adjusting
Point Instrument
Connection
Test Tape
Normal MTT-111 Variable 3,000 ±Speaker
speed resistor in 30 Hz terminal
motor (Load
(MM1) resistance:
8 ohms)
ADJUSTMENT
Specified Value
Tape 1
•Tape Speed
Figure 10-1 ADJUSTMENT POINTS
TAPE MECHANISM
MM 1
Motor
Variable resistor in motor
Figure 10-2 ADJUSTMENT POINTS
• 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
TP302
R357
T351 VR351
FM MUTE
LEVEL
R336 TP301
FE301
IC303
T306 T302
SO301
ANTENNA
TERMINAL
TUNER PWB
CNP303
AM IF
AM BAND
COVERAGE fL
AM
TRACKING fH
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
IF 450 kHz 1,602 kHz T351 *1
AM Band — 531 kHz (fL): T306 *2
Coverage 1.1 ±0.1 V
AM 990 kHz 990 kHz (fH): T302 *1
Tracking
*1. Input: Antenna, Output: TP302
*2. Input: Antenna, Output: TP301

CD-C811W/821W
– 11 –
TEST MODE
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.
CD SECTION Figure 11-1
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> + <DISC. SKIP> + <POWER> TEST: CD operation test
• TEST mode
Function — CD test mode
Setting of TEST mode
Indication of CD TST mode (Fig. 11-1)
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
IL is not performed.
<STOP>
1 2 3
Figure 11-2
Figure 11-3
Figure 11-4
• Automatic adjustment item
1. Focus offset (Fig. 11-2)
2. Tracking offset (Fig. 11-3)
3. E/F balance (tracking error balance) (Fig. 11-4)
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.
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
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
CD ERROR CODE DESCRIPTION
When a malfunction occurs during CD operation, an error
code will be displayed to identify the function in CD operation
which failed.
Error State Code
0001 Cannot detect pickup-IN SW
0101 Tray close operation error
0105 Tray close operation error
0201 Tray open operation error
0203 Tray open operation error
0304 Disc skip operation error
0305 Disc skip operation error
0307 Disc skip operation error

CD-C811W/821W
– 12 –
•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.
Figure 12 TYPES OF TRANSISTOR AND LED
SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW401 SPAN SELECTOR 100/10-50/9
SW701 ON/STAND-BY ON—OFF
SW702 CLOCK ON—OFF
SW703 TIMER/SLEEP ON—OFF
SW707 DISK SKIP ON—OFF
SW708 OPEN/CLOSE ON—OFF
SW709 REWIND ON—OFF
SW710 REC PAUSE ON—OFF
SW711 MEMORY/SET ON—OFF
SW712 STOP ON—OFF
SW714 TAPE ON—OFF
REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION
SVC348S
2SC2389 SE
2SC380 O
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTC3199 GR
KTC3203 Y
FRONT
VIEW
E C B
(S)(G)(D)
(1) (2) (3)
2SA1318
FRONT
VIEW
B C E
(D)(G)(S)
(3) (2) (1)
1 2 3 SLI342UCJ1
VIEW
FRONT
SW715 CD ON—OFF
SW716 FAST FORWARD ON—OFF
SW717 TUNING UP ON—OFF
SW718 TUNING DOWN ON—OFF
SW719 PLAY ON—OFF
SW720 VOLUME DOWN ON—OFF
SW721 VOLUME UP ON—OFF
SW722 X-BASS/DEMO ON—OFF
SW902 VOLTAGE SELECTOR 110/127/220/
230-240V
SWM3 FOOI PROOF ON—OFF
SWM4 F.A.S. ON—OFF
SWM5 CAM ON—OFF

CD-C811W/821W
– 13 –
Figure 13 BLOCK DIAGRAM (1/5)
27
12341
67
18244020
45
15
23
16 26 27
2
25
20
3839284142 37 36
PU-IN SW
X1
16.93MHz
XIN
LD0
FIN2 JP–
CV+
SLC
SL1
FIN1 E F
TO
FD
SPO
SP
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
5
+5V
SW4
PICKUP IN
FOCUS COIL
TRACKING COIL
M1
SPINDLE
MOTOR
M
M
M2
SLED
MOTOR
PICKUP UNIT
9
IC2
LC78622N
SERVO/SIGNAL
CONTROL
+B1
IC3
M63001FP
FOCUS/
TRACKING/
SPIN/SLIED
DRIVER
IC1
LA9241M
SERVO AMP.
/RES. /CQCK. COIN SQOUT. RWC. WRQ
~
~
~
CL, DAT, CE
Q51
SL+. SL–. DRF
987654321
GND (D) MECHA UP GND (D) DISK NO. OPEN CLOSE GND (D) M– M+
987654321
CNP10
M
+5V
+B1
62
64
45
36
23
43
37 36 38
40 24 25
10
123456
10
26
58
53
1012 20
32 40 43 44
53
52
51
54
31
30
29
23
27
16
15
41
44
Q1
Q52
+4.3V
+7V
VOLTAGE
REGULATOR
TO MAIN PWB
(TO IC401)
XOUT
EFMO EFMIN CLV+ JP–
CONT2 CONT1
LCHO
LVDD
LVSS
RCHO
ISET
VDD
LVDD
RVDD
XVDD
SW1 OPEN CLOSE
SW2 MECHA UP SW3 DISC NUMBER
M3 TURNTABLE UP/DOWN LOADING MOTOR
SOLM2 SOLENOID
TO DISPLAY
PWB
CNS10
+B5
CNP11
RVSS
39
CONT4
SWITCHING
REGULATOR
LASER DRIVER
6
VVDD
CONT3
17
–
+
SOL– SOL+
8
29
35
14
~~
21
22
R-CH
L-CH

CD-C811W/821W
– 14 –
Figure 14 BLOCK DIAGRAM (2/5)
X351 456kHz
FM IF CF351
+B4
+B4
+B4
+B4
VOLTAGE
REGURATER
+5V
FM +B
VT
T306
T302
CF302
DO
CE CL
DI
CF301
FE301
FM FRONT END
Q360
RL
Q354
Q353
Q361
SWITCHING
IF IN
IC303
LA1832
FM IF DET./FM MPX./AF IF
IF OUT
SD
MONO/ST
AM RF IN
FM AFC
AM OSC IN
AM
OSC
OUT
VR351
FM MUTE LEVEL
REG INOUT VCC
FM IF IN
12 3 4589
17 19
15
14
12
11
10
67
13
21
22
23
24
FM IF
AMP
Q301
FM IF
FM
X352
4.5MHz
STEREO
IC302
LC72131
PLL CONTROLLER
INAM
FM IN
FMOSC
T351
AM IF
GND
OSC
F OUT
FM IF
AM OSC
VOLTAGE
REGULATOR
PLL DATA
BUFFR
AM ANT
AM RF
CF352
AM IF
TUNER MUTE
MUTING
2
8
67 3 4
1
531
4
3 6
5
21
17
1213
10
1116
15
2220
7
1
Q371
+B4
1 3
31
1
24
2
23
3
4
4
21
5
20
6 7
17
8
9
16
10
14
12
13
18
H/N
T1/T2
R-CH
L-CH
L-CH
R-CH
P.B
REC
TAPE 2
TAPE 1
L NF
L(T1)
R(T1)
L(T2)
R(T2)
R NF
L
R
POP REDUCE
L REC
R REC
L
R REC
P.B.
REC
NC
NOR/
CRO2 T1/T2
RIPPLE L NF
R NF
PLAYBACK
HEAD
RECORD/
PLAYBACK HEAD
SWITCHING
Q501~Q509
AC BIAS
IC501
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
PB
ERASE
HEAD
+B4
1
3
4
CNS401
FROM CD PWB
CNP11
FO
O
S
4
17
3
18
2
19
1
20
11 10
9
IC401
M62439SP
AUDIO PROCESSOR
L
R
L
R
L
R
L
R
TUNER
TAPE
CD
T
SWITCHING
SWITCHING
Q512
Q513
13
8
15 19
Q514
Q515
Q516
2
L-CH
R-CH
SO301
ANTENNA
TERMINAL
FM
75 ohms
GND
AM
BIAS OSC
CD-C811W

CD-C811W/821W
– 15 –
Figure 15 BLOCK DIAGRAM (3/5)
Q704
52
IC903
KIA7812P
2
1
3
IC902
KIA7806P
2
1
3
IC901
AN78L05
3
1
2
+B4
SO901
SPEAKER
TERMINALS
FRONT
SPEAKER
F902
T1.6A L 250V
F901
T2.5A L 250V
F903
T500mA L
250V
18
Q631
Q632
SWM3
FOOL PROOF
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM 1 2 3
14 17 18 21 30 31 3233
IC701
IX0300AW
SYSTEM MICROCOMPUTER
S
OR
L
R
XL701
4.19MHz
+B5
KEY
SW901~SW703
SW707~SW722
+B5
M
TO CD
SECTION
CNP12
MM1
TAPE MOTOR
JK601
HEADPHONES
T.F
PT901
POWER
TRANSFORMER
RL901
RELAY
AC POWER
SUPPLY CORD
AC 110/127/220/
230-240V
50/60Hz
PT902
BACK UP
TRANSFORMER
IC904
AN78L05
Q902
+B6
+B7 UNSWITCH
T1/T2
REC
ING
2
3
D910,D911
D914,D915
D912,D913
D916,D917
2 3
1
+B7
RX701
Q703
7
3
L-OUT
IC601
LA4282
POWER AMP.
+B
R-OUT
13
8
Q401
Q402
+B1
+B4
+B5
+12V
+7V CD+B
+12V(MOTOR)
+5V
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
CONSTANT
VOLTAGE
REGULATOR
CONSTANT
VOLTAGE
REGULATOR
Q701
Q702 ~
2
5
12
10
17353416 9 12
58
2321
24
2725
47
46
43
42
44
54
51
49
61 71 7 56
PHM1
RUN PALS
SENSOR
D921~D924
~
~
~
~
41
36
~
7061 ~ 77 79 8072 ~
34
LED701
1319 30
11
SO901
AC SOCKET
3
1
2
RESET
REMOTE
SENSOR
57
FL701
FL DISPLAY
+5V
L-CH
R-CH
53
,,
,,,
,
~~~
,
Q901
110V
230-240V
127V
220V SW902
VOLTAGE
SELECTOR
MUTING
VOLTAGE
REGULATOR
RL901(RELAY)DRIVER
FL SEGMENT DRIVER
MOTOR
DRIVER
SOLENOID
DRIVER

CD-C811W/821W
– 16 –
Figure 16 BLOCK DIAGRAM (4/5)
CD-C821W
X351 456kHz
FM IF CF351
+B4
+B4
+B4
VOLTAGE
REGURATER
+5V
FM +B
VT
T306
T302
CF302
DO
CE CL
DI
CF301
FE301
FM FRONT END
Q360
RL
Q354
Q353
Q361
SWITCHING
IF IN
IC303
LA1832
FM IF DET./FM MPX./AF IF
IF OUT
SD
MONO/ST
AM RF IN
FM AFC
AM OSC IN
AM
OSC
OUT
VR351
FM MUTE LEVEL
REG INOUT VCC
FM IF IN
1589
17 19 20
15
14
12
11
10
67 13
21
22
23
24
FM IF
AMP
Q301
FM IF
FM
X352
4.5MHz
STEREO
IC302
LC72131
PLL CONTROLLER
INAM
FM IN
FMOSC
GND
OSC
F OUT
FM IF
AM OSC
VOLTAGE
REGULATOR
AM ANT
AM RF TUNER MUTE
MUTING
2
8
67 3 4
1
5
4
3 6
521
17
1213
10
1116
15
2220
7
1
Q371
+B4
1 3
31
+B4
23 4
T351
AM IF CF352
AM IF
31
1
24
2
23
3
4
4
21
5
20
6 7
17
8
9
16
10
14
12
13
18
H/N
T1/T2
R-CH
L-CH
L-CH
R-CH
P.B
REC
TAPE 2
TAPE 1
L NF
L(T1)
R(T1)
L(T2)
R(T2)
R NF
L
R
POP REDUCE
L REC
R REC
L
R REC
P.B.
REC
NC
NOR/
CRO2 T1/T2
RIPPLE L NF
R NF
PLAYBACK
HEAD
RECORD/
PLAYBACK HEAD
SWITCHING
Q501~Q509
AC BIAS
IC501
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
PB
ERASE
HEAD
+B4
1
3
4
CNS401
FROM CD PWB
CNP11
FO
O
S
4
17
3
18
2
19
1
20
11 10
9
IC401
M62439SP
AUDIO PROCESSOR
L
R
L
R
L
R
L
R
TUNER
TAPE
CD
SWITCHING
Q512
Q513
13
8
15 19
Q514
Q515
Q516
2
Q510
Q511
TAPE MUTING
SPARE
L-CH
R-CH
SO301
AM/FM ANTENNA
TERMINAL
FM
75 ohms
GND
AM
SWITCHING
BIAS OSC

CD-C811W/821W
– 17 –
Figure 17 BLOCK DIAGRAM (5/5)
Q704
46
IC903
KIA7812P
2
1
3
IC902
KIA7806P
2
1
3
IC901
AN78L05
3
1
2
+
B4
SO901
SPEAKER
TERMINALS
FRONT
SPEAKER
SURROUND
SPEAKER
F902
T1.6A L 250V
F901
T3.15A L 250V
F903
T500mA L
250V
24 15
SWM3
FOOL PROOF
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM 1 2 3 30 31 3233
IC701
IX0309AW
SYSTEM MICROCOMPUTER
OR L
R
XL701
4.19MHz
+B5
KEY
SW701~SW704,
SW706, SW707,
SW710~SW720,
SW722~SW728
+B5
M
TO CD
SECTION
CNP12
MM1
TAPE MOTOR
JK601
HEADPHONES
T.F
PT901
POWER
TRANSFORMER
PT902
BACK UP
TRANSFORMER
IC904
AN78L05
Q902
+B6
+B7 UNSWITCH
T1/T2
REC
N
G
D910,D911
D914,D915
D912,D913
D916,D917
2 3
1
+B7
RX701
Q705
5 L-OUT
IC601
LA4451
POWER AMP.
+B
R-OUT
13
8
Q401
Q402
+B1
+B4
+B5
+12V
+7V CD+B
+12V(MOTOR)
+5V
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
CONSTANT
VOLTAGE
REGULATOR
CONSTANT
VOLTAGE
REGULATOR
Q702
Q703 ~
13
9
12
1011129 654317
29 19
20
212223
30
3331
39
38
41
42
53
52
54
45
47
49 7869 79
100
58
PHM1
RUN PALS
SENSOR
D921~D924
~
~
~
8980 ~9992 ~
37
36
34
LED701
1843
7
2
3
1
2
RESET
REMOTE
SENSOR 51
FL701
FL DISPLAY
+5V
L-CH
R-CH
42
RL901
RELAY
AC POWER
SUPPLY CORD
AC 110/127/220/
230-240V
50/60Hz
SO901
AC SOCKET
110V
230-240V
127V
220V SW902
VOLTAGE
SELECTOR
MUTING
Q901
VOLTAGE
REGULATOR
FL SEGMENT DRIVER
MOTOR
DRIVER
SOLENOID
DRIVER

CD-C811W/821W
– 18 –
Figure 18 SCHEMATIC DIAGRAM (1/15)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
CD-C811W
R791
1K
C775
2.2/50
C774 100/10
R792
33
R775 1K
R800
10
(1/2W)
C703
1/50
R711 1K R704 1K R705 1K R706 1K
FL701
FL DISPLAY
R713 1K
C705
47/16
Q702
KTA1271 Y
R740
10K
R712 2.2K
R714
2.2K
R716 1K
R709 1K
R702 1K
R726 1K R728 1K
R707 1K
R703 1K
R739
10K Q701
KTA1273 Y
MOTOR DRIVER
C709
R729
1K
R721 1K
R723
1K
R725
1K
R727 1K
R719
1K
Q703
KRC107 M
FL SEGMENT
DRIVER
R708 1K R722 1K
C704
1/50
R741
100K
R710 1K R718 1K R717 1K R724 1K R715 1K
IC701
IX0300AW
SYSTEM MICROCOMPUTER
80
79
80
78
77
76
75
74
73
72
71
70
69
68
67
66
65
65
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
NC
NC NC
NC
NC
S MUTE
VLOAD
VDD
VSS
AVSS
RESET
CD COIN
CD PCCL
CD WRQ
CD RWC
CLK
VDD
T0 T1 T2 T3 T4 T5 T6
T7
T8
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S11
S12 S13 S14 S15
9G 4G 3G 2G 1G 8G
7G
6G
5G
P17
P18
P19
P12
P1
P6
P7
P8
P9
P10
P11
P14
P20P13
P16 P15
F F
P15 P16 P13 P20 P14 P11 P10 P9 P8 P7 P6 5G
P5 P4
6G 7G
P3 P2
8G P1 P12 P19 P18 P17 1G 2G 3G 4G 9G F F
CD SQOUT
TIMER LED
CD CQCK
CD DSP RES
CD FRF
A/D T2 RUN
CD U/D SW REC/PLAY T_BIAS
CE
T1FAS AC RLY CONT
DI
DO
T T1T2
CAM SW POWER TAMUTE T.MOTOR T.SOL REMOCON SYSTEM STOP FPA IC DIST0
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
1312
11
10
9
8
7
6
5
4321
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
24
23
22
21
20
19
18
17
16
15
14
1312
11
10
9
8
7
6
5
4321
28
27
26
25 A/D KEYIN 1
A/D KEYIN 2
A/D KEYIN 3
A/D DIST
R745
10K
R746
10K
R747
10K
R749
10K
R748 10K
R772
3.3(1/2W)
C7
7
0.0
2
R743
1.2K
C706 0.022
C707 220/6.3
LCK
C773
0.0047
8 7 6 5 4 3 2 1
MOTOR
1
S_MUTE UN_SW_+5V
SW 5V
M_+12V D_GND
VF1
VF2 -VP
1
TO MAIN PWB
P23 12-F
+B
+B
+B
SOLENOIDO
CAM SW
T1FAS
FPA
+B
M_GND
A/D T2 RUN
BI702
+B
+B
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11 1212
MOTOR
FOOL PROOF
T1 RUNPALS
MECHA STOP
SOLENOID
T2 RUNPALS
+B
GND
CNS702
CNPM1
PHM1
CNPM2
SWM3
FOOL PROOF
4
3
1
+
MM1
TAPE MOTOR
FWM1
M
FWM2
PHOTE
INTERRUPTER
SWM5
CAM
SWM4
F.A.S
SOLM1
SOLENOID
TAPE MECHANISM
PWB-E
1
2
2 MOTOR
+B
T2 RUNPALS
FOOL PROOF
T1 RUNPALS
MECHA STOP
SOLENOID
1
2
D701
DS1SS133
S10
OPEN SPN_P
OPEN
R701 1K
R742
10K
SPN_P
4.8V23-25V
-25V
-24.8V
-24.8V
-22V
-24.8V -24.8V -24.8V -24.8V
4.7V 4.7V
0V 0V 0V 0V 0V 1.6V 1.9V 4.6V 4.6V
3.9V 0.5V 4.6V
4.6V
1.6V
4.2V
-24.8V
-24.8V
-24.8V
-27.8V
-27.8V
-27.8V
-27.8V
-18.2V
-18.2V
-21.2V
-21.2V
-28V
-28V
-28V
-18V
-18V
-21.3V
-21.3V
-21.2V
-21.2V
4.9V
0V
0V
0V
0V
0V
4.7V
4.7V
4.7V
4.7V 4.7V
12V
5V
5.2V
4.9V
1.6V
2.4V
0V 4.6V
5V
12V
12V
12V
12V
0V
SOLENOID
DRIVER

CD-C811W/821W
– 19 –
Figure 19 SCHEMATIC DIAGRAM (2/15)
78 9 10 11 12
R760
3.3K
C770
0.1/50 R782
47K
XL701
4.19MHz C701
15P (CH)
R752
10K
R726 1K R728 1K
C709 0.022
R729
1K
1K
725
1
K
R727 1K
R785
4.7K
C702
18P(CH)
R722
1K
R730 1K
R724 1K
R734 1K
C715
47/25
R786
100
C714 0.022
RX701
REMOTE
SENSOR
D704
DS1SS133
IC702
KIA7042P
RESET
3 1
D705
DS1SS133
C713
0.022
R783 100K
D703
DS1SS133
C712
3.3/50
Q704
KRC102 M
R731 1K
R732 1K
R733 1K
R
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
CD O/C SW
CD PUIN SW
CD SLM –
CD SLM +
VSS
AVREF
AVDD
CD CQCK
CD DSP RES
CD FRF
A/D T2 RUN
CD DISC NO SW
CD U/D SW REC/PLAY T_BIAS T T1T2
44 43 42 41
24
23
22
21
R778
8.2K
R762
1.2K
R761
820
R776
3.3K
R773
2.2K
R765
1.2K R767 1.5K
R763
820 R770 1.8K
R764
820 R777 3.3K
R771
1.8K
R766
1.2K R774 2.2K
R768
1.5K
FW705
C710
0.01 D702
DS1SS133
N 1
N 2
N 3
T
R735 1K
R736 1K
R737 1K
R738 1K
R753 10K
R754 10K
R756 10K R757 10K R755
3.3K
LED701
SLI342UCJ1
TIMER
L701
100µH
C708
0.001
R749 10K
R750
10K
R751
10K
R748 10K
3.3(1/2W)
C772
0.022
9 8 7 6 5 4 3 2 1
10
11
1213
14
15
9 8 7 6 5 4 3 2 1
10
11
1213
14
15
PCCL
U/D SW
DISC NO SW
O/C SW
PUIN SW
SLM–
SLM+
D_GND
FRF
DSP RES
CQCK
SQOUT
WRQ
COIN
RWC
2
1 2 3
R758
1.8K
+B
+B
SW707
DISC
SKIP
SW708
OPEN/
CLOSE
R780
3.9K
1
3
1
3
SW701 SW702 SW703
CLOCK
ON/
STANDBY TIMER/
SLEEP
SW709 SW710 SW711 SW712 SW713 SW714 SW715
CD
TUNER
/BAND
MEMORY
/SET
STOP
RECORD
/PAUSE
SW716 SW717 SW718 SW719 SW720 SW721 SW722
TUNING
UP TUNING
DOWN
PLAY
VOLUME
UP
FAST
FORWARD
VOLUME
DOWN
+B
+B
+B
+B
+B
+B
1
2 3
BI701
CNS701
CNP12 TO CD SERVO PWB
P31 7-H
AC_RLY_CONT POWER T_T1T2 T_BIAS REC/PLAY
DI
CE DO
CLK
1
9
FW701
D708
DS1SS133
D707
DS1SS133
M_GND
UN_SW_+5V
SW_+5V
M_+12V D_GND
VF1
-VP
FW703
TO MAIN PWB
P23 12-E
N PWB
12-F
+B
SWITCH PWB-A4
DISPLAY PWB-A1
TAPE
REWIND
X-BASS
/DEMO
10
IC702
RESET
OPEN
4
.
6V
4.6V
1.6V
4.2V
4.9V
4.9V
4.9V
4.9V
1.2V
4.7V
1.8V
4.6V
2.1V 0V
0V
0V
2.3V
5V
5V
5V
2.4V
0V 4.6V
5V
4.6V
0V
0V
0V
4.8V 4.8V
R793 270K

CD-C811W/821W
– 20 –
Figure 20 SCHEMATIC DIAGRAM (3/15)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
CD-C811W
R606
1K
R608
120
C611
0.1
(ML)
R611
4.7
C613
0.1
(ML)
C911
3300/25
C612
0.1
(ML)
C614
0.1
C601
10/16
R632
820
R631
22K
Q632
KRC102 M
Q631
KRC102 M
C602
10/16
R602
560
R604
33K
R603
33K
C604
470P
C603 470P
C635
10/50
R612
4.7
R610
270
(1/2W)
R609
270(1/2W)
C633
220P
C634
0.022
(ML)
C632
47/25
C631
0.022
(ML)
IC601
LA4282
POWER AMP.
C610
470/25
C607
0.082(ML)
C608
100/25
C605
100/25
R633
56K
R607
1K
R605
120
C901 47/16
C907
100/16
C908
0.1
(ML)
C910
0.1
(ML)
C906
0.022(ML)
R901
10K
IC903
KIA7812P
3 1
C902
0.022(ML)
D902
DS1SS133
IC901
AN78L05
2 1
C904
0.047(ML)
D901
DS1SS133
C913
1000/25
D905
1N4004S
D
1N
4
D903
DS1SS133
D904
DS1SS133
IC902
KIA7806P
3 1
C903
47/25 C905
0.047(ML)
C912
2200/50
12
11
10
9
8
7
6
5
4321
2
3
2
C609
470/25
D91
9
DS1
S
Q902
KRC107 M
RL901(RELAY)DRIVER
C909
0.1 (ML)
F903
T500mA L 250V
12
13
14
15
16
10
18
26
19
20
22
21
24
23
25
18
17
CD_+B
A_+12V
CD_GND
A_GND
M_GND
0V GND_POWER 0V +VCC 0V GND_POWER 0V MUTE 0V OUT_A 0V OUT_B 0V –IN_B 0V +IN_B 0V GND_PRE 0V RIPPLE_FILTER 0V +IN_A 0V –IN_A
R_IN
L_IN
SW_+5V
UN_SW_+5V
M_+12V
–15V
VF1
–VP
VF2
D_GND
POWER
AC_RLY_CONT
1 2
3
1 2
3
IC901
CONSTANT VOLTAGE
REGULATOR
+B
+B
+B
+B
+B
IC903
VOLTAGE REGULATOR
3
1 2
+B
-B
+B
+B
+B
+B
+B
+B
-B
VOLTAGE REGULATOR
+B
TO MAIN SECTION
P22 1-D
C
9
100
D918
DS1SS133
POWER PWB-A2
FM SIGNAL
R601
560
TO MAIN SECTION
P23 12-G
C606
0.082(ML)
4.3V
0V
4.3V 0V 0V
0V
18.4V
0V
0.7V
23.2V
1.3V
7.3V
23.2V
0V
12V
12V
6.2V
1.2V