Sharp CD-K1861V User manual

– 1 –
CD-K1861V
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
BLOCK DIAGRAM ........................................................................................................................................................... 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................16
VOLTAGE ........................................................................................................................................................................ 40
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 41
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 42
FUNCTION TABLE OF IC................................................................................................................................................ 47
FL DISPLAY..................................................................................................................................................................... 63
PARTS GUIDE/EXPLODED VIEW
CD-K1861V
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
NTSC/PAL
SHARP CORPORATION
SERVICE MANUAL
No. S0959CDK1861V
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-K1861V Video CD Mini System consisting of CD-K1861V
(main unit) and CP-C861(speaker system).

CD-K1861V
– 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 for this model is specified to be lower than Class I Requirements.
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 outer than
the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
(2) TheLaserPowerOutputofthePickupinsidetheunitandreplacementservicepartshavealreadybeenadjustedpriortoshipping.
(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 - Use of controls or adjustments, or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
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 unitil the correct voltage figure is displayed in the window next the adjustment screw.
Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
92LPLUG027 92LPLUG155A
QACCA0001AW00 QACCB0009AW00
QACCE0012AW00
This Video CD Mini System is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located on the
rear cover.
Useof controls,adjustments orperformance ofprocedures
other than those specified herein may result in hazardous
radiation exposure.
Asthe laserbeam usedin thiscompact discplayer isharm-
ful to the eyes, do not attempt to disassemble the cabinet.
Refer servicing to qualified personnel only.
CAUTION 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.

– 3 –
CD-K1861V
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-K1861V
CP-C861
General
Power source: AC 110/127/220/230-240 V,
50/60 Hz
Power consumption: 180 W
Dimensions: Width; 270 mm (10-5/8")
Height; 330 mm (13")
Depth; 358 mm (14-1/8")
Weight: 10.5 kg (23.1 lbs.)
Amplifier section
Output power : MPO; 440 W (220 W + 220 W)
(10 % T.H.D.)
RMS; 300 W (150 W + 150 W)
(10 % T.H.D.)
Output terminals: Speakers; 6 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
Video out; 1 Vp-p(75 ohms)
Input terminals: Video/Auxiliary (audio signal);
500 mV/47 kohms
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
D
y
namic ran
g
e: 90 dB
(
1 kHz
)
Cassette deck section
Frequency range: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/
playback)
Wow and flutter: 0.15 % (WRMS)
Video CD section
Video output format : PAL / PAL60 / NTSC
Tuner section
Frequency range: FM; 88 - 108 MHz
AM; 531 - 1,602 kHz
Speaker section
Type: 3-way type [20 cm (7-7/8") woofer,
8 cm (3-1/8") tweeter and super
tweeter]
Maximum input power: 300 W
Rated input power: 150 W
Impedance: 6 ohms
Dimensions: Width; 250 mm (9-13/16")
Height; 330 mm (13")
Depth; 335 mm (13-1/4")
Weight: 6.1 kg (13.4 lbs.)/each

CD-K1861V
– 4 –
NAMES OF PARTS
CD-K1861V
Front panel
1. Disc Number Selector Buttons
2. Disc Tray
3. Multi Indicator
4. Disc Skip Button
5. Open/Close Button
6. Extra Bass Indicator
7. FM Stereo Mode Indicator
8. FM Stereo Indicator
9. (VCD/CD) Play Indicator
10. (VCD/CD) Pause Indicator
11. (VCD/CD) Repeat Indicator
12. (VCD/CD) Disc Number Indicators
13. (VCD/CD/TUNER) Memory Indicator
14. Timer Play Indicator
15. Timer Record Indicator
16. Spectrum Analyzer/Volume Level Indicator
17. (TAPE 2) Record Indicator
18. Sleep Indicator
19. Timer Set Indicator
20. (VCD) Digest Button
21. (VCD) Book Mark Button
22. (VCD) Skip/Previous Button
(CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Rewind Button
23. (VCD) Skip/Next Button
(CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button
24. Timer/Sleep Button
25. Clock Button
26. (VCD) Playback Control Auto/Off Button
27. (VCD/CD) Karaoke/Audio Mode Button
28. (VCD) On Screen Display On/Off Button
29. On/Stand-by Button
30. Function Selector Button
31. Equalizer Mode Selector Button
32. Dimmer Button
33. Surround Button
34. Extra Bass/Demo Mode Button
35. Headphone Socket
36. (TAPE 2) Record Pause Button
37. Memory/Set Button
38. (VCD) Stop/Return Button
(CD/TAPE) Stop Button
39. (VCD) Play/Repeat/Select/Resume Button
(CD) Play/Repeat Button
(TAPE) Play Button
40. Tuning and Time Up/Down Buttons
41. Volume Control
42. Key Control Buttons
43. Microphone Sockets
44. Microphone Level Controls
45. Digital Echo Control
46. (TAPE 1) Cassette Compartment
47. (TAPE 2) Cassette Compartment
123 45
11
16 17 18
6
7
89
12
13
14
15
10
27
28
29
24
25
26
30
2019
38 39 40 4135 36 37
31
32
33
34
21 22 23
42 43 44 45
46 47

– 5 –
CD-K1861V
CP-C861
Rear panel
21. Video Output Socket
12. AC Power Lead
13. AM Aerial Terminal
14. Aerial Earth Terminal
15. FM 75 Ohms Aerial Terminal
16. Video/Auxiliary (Audio Signal) Input Sockets
17. AC Voltage Selector
18. Speaker Terminals
Speaker
21. Super Tweeter
12. Tweeter
13. Woofer
14. Bass Reflex Ducts
15. Speaker Terminals
Remote control
21. Remote Control Transmitter LED
12. On/Stand-by Button
13. Key Control Buttons
14. (VCD/CD) Karaoke/Audio Mode Button
15. (VCD/CD) Direct Search Buttons
16. (VCD) On Screen Display On/Off Button
17. (VCD) PAL/NTSC Select Button
18. (VCD) Book Mark Button
19. (VCD) Digest/Time Search Button
10. (VCD) VCD Auto/On Button
11. (VCD) Playback Control Auto/Off Button
12. (VCD/CD) Clear Button
13. (VCD/CD) Memory Button
14. (VCD/CD) Disc Skip Button
15. (VCD/CD) Random Button
16. (VCD/CD) Pause Button
17. (TAPE 2) Record Pause Button
18. (VCD) Skip/Previous Button
(CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Rewind Button
19. (VCD) Skip/Next Button
(CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button
20. (VCD) Stop/Return Button
(CD/TAPE) Stop Button
21. (VCD) Play/Repeat/Select/Resume Button
(CD) Play/Repeat Button
(TAPE) Play Button
22. Function Selector Buttons
23. Extra Bass Button
24. Equalizer Mode Button
25. Surround Button
26. Volume U
p
/Down Buttons
87
1
2
3
4
5
6
5
4
3
12
15
9
8
7
6
25
24
23
22
10
11
12
13
26
1417 16
20 2118 19
1
2
3
4
5
CD-K1861V

CD-K1861V
– 6 –
OPERATION MANUAL
SETTING THE CLOCK
(Main unit operation)
CLOCK ON/ STAND-BY MEMORY/ SET
TUNING/ TIME ( )
7
Press the MEMORY/SET button.
8
Press the TUNING/TIME ( or ) button to adjust the min- utes.
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.) And then the clock display will disappear a few seconds.
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 theAC power lead is discon- nected. If this happens, follow the procedure below to change the clock time.
To change the clock time:
Press the CLOCK button. Within 5 seconds, press the MEMORY/SET button. Perform steps 6 - 9 above.
To change the time display mode:
Perform steps 1 - 2 in the section “RESETTING THE MI- CROCOMPUTER”. Perform steps 1 - 9 above.
1
PresstheON/STAND-BYbuttonto enterthe stand-bymode.
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.
AM 12:00AM 0:000:00
“0:00” The 24-hour display will appear.
(0:00 - 23:59)
“AM 0:00” The 12-hour display will appear.
(AM or PM 0:00 - 11:59)
“AM 12:00” The 12-hour display will appear.
(AM or PM 12:00 - 11:59)
Note that this can only be set when the unit is first installed or it has been reset .
5
Press the MEMORY/SET button.
6
PresstheTUNING/TIME ( or )buttonto adjustthehour. 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 au- tomatically to “PM”.
In this example, the clock is set for the 24-hour (0:00) system.
1 2 3
1
2
PREPARATION FOR USE
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 con- trol 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. Keepthe remotecontrolawayfrommoisture,excessiveheat, shock, and vibrations.
Remote control
15
15
0.2 m - 6 m (8" - 20')
Reset the microcomputer under the following conditions:
To erase all of the stored memory contents (clock and timer settings, and tuner, video CD and CD presets). If the display is not correct. If the operation is not correct.
1PresstheON/STAND-BYbutton toenter the stand-bymode. 2Whilst 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, video CD and CD presets.
ON/ STAND-BY
RESETTING THE MICROCOMPUTER

– 7 –
CD-K1861V
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 offnylon bands or wire holderswhere theyneed to
beremovedwhendisassemblingtheunit.Afterservicing
theunit, besure to rearrange the leadswhere theywere
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 7-2
Figure 7-3
CD-K1861V
Figure 7-1
LOCK
LEVER
1 Top Cabinet 1. Screw ..................... (A1) x4 7-1
2 Side Panel 1. Screw ..................... (B1) x8 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. Screw ..................... (C1) x1
3. Hook....................... (C2) x3
4. Hook....................... (C3) x2
5. Socket .................... (C4) x5
4 Rear Panel 1. Screw ..................... (D1) x9 7-2,
(with Digital 8-1
Output PWB)
5 Main PWB/ 1. Screw ..................... (E1) x1 8-1
Tuner PWB 2. Socket .................... (E2) x4
3. Flat Cable............... (E3) x1
4. Tip .......................... (E4) x1
6 Front Panel 1. Screw ..................... (F1) x3 8-1
2. Socket .................... (F2) x1
7 Power Amp. PWB 1. Screw ..................... (G1) x7 8-2
2. Socket .................... (G2) x2
3. PWB Holder ........... (G3) x1
8 Power Supply PWB 1. Screw ..................... (H1) x4 8-2
9 Karaoke PWB 1. Screw ..................... (J1) x2 8-3
2. Tip .......................... (J2) x1
10 Display PWB/ 1. Screw ..................... (K1) x13 8-3
Switch PWB 2. Socket .................... (K2) x1
3. Hook....................... (K3) x2
4. Buttom.................... (K4) x1
11 Tape Mechanism 1. Open the cassette holder. 8-3
2. Screw...................... (L1) x6
12 Turntable 1. Screw ..................... (M1) x1 8-4
2. Cover ..................... (M2) x1
13 Disc Tray 1. Screw ..................... (N1) x2 8-4
2. Guide ..................... (N2) x2
14 CD Video PWB 1. Screw ..................... (P1) x2 8-5
(Note 2) 2. Socket .................... (P2) x4
15 CD Changer 1. Screw ..................... (Q1) x4 8-6
Mechanism
16 CD Mechanism 1. Screw ..................... (R1) x1 8-6
STEP REMOVAL PROCEDURE FIGURE
Note 1:
How to open the changer manually. (Fig. 7-3)
1. Change, turn fully the lock lever in the arrow direction
throughtheholeontheloadingchassisbottominthisstate.
After that, push forward the CD player base.
CD-K1861V
Note 2:
1.After removing theconnector forthe optical pickupfrom the
connector, wrap the conductive aluminium foil around the
front end of connector to protect the optical pickup from
electrostatic damage.
Top Cabinet Front Panel
(A1) x2
ø3 x12mm
(A1) x2
ø3 x12mm
Side Panel
(Left)
Side Panel
(Right)
(B1) x2
ø3 x10mm
(B1) x2
ø3 x10mm
(B1) x4
ø3 x10mm
Back Board
(D1) x1
ø3 x10mm
CD Tray Cover
CD Player
Unit
CD Video
PWB
Hook
(C2) x3
(C3) x1
(C4) x4
(C4) x1
1
1
2
Pull
(C3) x1
Rear Panel
(C1) x1
ø3 x10mm
(D1) x4
ø3 x10mm
(D1) x3
ø3 x6mm
Front Panel
Main PWB

CD-K1861V
– 8 –
Figure 8-1
Figure 8-2
Figure 8-3
Be careful when installing the CD changer mechanism.
InstalltheCDchangermechanismontheCDplayerbaseafter
the shift lever has been set in the highest position.
Figure 8-4
Figure 8-6
Figure 8-5
(E2) x2
(E4) x1
(E2) x1
(D1) x1
ø3 x10mm
(E3) x1
Front Panel
(E1) x1
ø3 x10mm
(F1) x3
ø3 x10mm
(F2) x1
Power Amp.
PWB
Power Supply
PWB
Tuner
PWB
Main
PWB
Power Amp.
PWB
(E2) x1
Main PWB
(G1) x5
ø3 x10mm
(G2) x1
(G2) x1
(G1) x2
ø3 x6mm
(H1) x4
ø4 x8mm
Push Push
1 1
2Pull
Power Amp.
PWB
(G3) x1
Power
Supply
PWB
Power Amp. PWB Heat Sink
Main
Chassis
Power
Transformer
Front Panel
Display
PWB
Switch PWB
Open
Cassette
Holder
(Left/Right)
Tape Mechanism
(K1) x2
ø3 x10mm
(K1) x11
ø3 x10mm
(L1) x6
ø3x10mm
(K2) x1
(K3) x2
(K4) x1
(J1) x2
ø3 x10mm
Karaoke
PWB
(J2) x1
(N1) x1
ø3 x10mm
(N1) x1
ø3 x10mm
(M1) x1
ø3 x10mm
Turntable
Disc Tray
(M2) x1
(N2) x1
(N2) x1
CD Player Unit
Washer
(P1) x1
ø3 x10mm
(P2) x2
(P2) x2 CD Player Unit
CD Video PWB
(P1) x1
ø3 x10mm
Washer
(Q1) x4
ø3 x12mm
(R1) x1
ø2.6 x10mm
CD Changer
Mechanism
CD Mechanism
Shift Lever
CD Player Base

– 9 –
CD-K1861V
1 Front Panel 1. Net.......................... (A1) x1 9-1
2. Rubber ................... (A2) x4
3. Screw ..................... (A3) x4
4. Tip .......................... (A4) x4 9-2
2 Woofer 1. Screw ..................... (B1) x4 9-2
3 Tweeter 1. Screw ..................... (C1) x4 9-2
4 Super Tweeter 1. Screw ..................... (D1) x2 9-2
STEP REMOVAL PROCEDURE FIGURE
Figure 9-1 Figure 9-2
How to remove the pickup (See Fig. 9-4)
1.Remove the screws(B1) x 2pcs., to removethe shaft (B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).
3. Remove the pickup.
Figure 9-4
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Performsteps1,2,3,12,13,14,15and16ofthedisassembly
method to remove the CD mechanism.
How to remove the loading motor
(See Fig. 9-3)
1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.
Figure 9-3
Note
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector to protect the optical pickup from
electrostatic damage.
(A1) x2
ø2.6 x5mm
Loading Motor
Motor
PWB
(B1) x2
ø2.6 x6mm
Shaft
(B2) x1
Stop Washer
(B3) x1
Gear
(B4) x1
CD Mechanism
Pickup
CP-C861
(A1)x1
Front Panel
(A3)x4
ø4x18mm
(A2)x4
Cabinet
Front Panel
Tweeter
Super
Tweeter
(C1)x4
ø3x10mm
(D1)x2
ø3x10mm
Woofer
(B1)x4
ø4x12mm
(A4)x4
Cabinet

CD-K1861V
– 10 –
MECHANISM SECTION ADJUSTMENT
Figure 10 ADJUSTMENT POINTS
•Driving Force Check
Torque Meter Specified Value
Play: TW-2412 Tape 1: Over 80 g
Tape 2: Over 80 g
•Torque Check
Torque Meter Specified Value
Tape 1 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
•Tape Speed
Test Tape Adjusting
Point Specified
Value Instrument
Connection
Normal MTT-111 Variable 3,000 ±Speaker
speed resistor in 30 Hz terminal
motor.
(MM1)
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
AM 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
• 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
AM IF
AM BAND
COVERAGE fL
AM
TRACKING fH
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
TAPE MECHANISM
MM 1
Motor
Variable Resistor in motor

– 11 –
CD-K1861V
TEST MODE
Figure 11-2 Figure 11-3
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. 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.
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
Figure 11-4
IL is not performed.
<STOP>
1 2 3
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-K1861V
– 12 –
SW717 CD ON—OFF
SW718 AUDIO MODE ON—OFF
SW719 PLAYBACK CONTROL ON—OFF
SW720 ON SCREEN DISPLAY ON—OFF
SW721 DIGEST ON—OFF
SW722 FAST FORWARD ON—OFF
SW723 TUNING UP ON—OFF
SW724 TUNING DOWN ON—OFF
SW725 PLAY ON—OFF
SW728 X-BASS/DEMO ON—OFF
SW729 EQUALIZER ON—OFF
SW730 DIMMER ON—OFF
SW731 SURROUND ON—OFF
SW736 KEY CONTROL,A ON—OFF
SW736 KEY CONTROL,B ON—OFF
SW736 KEY CONTROL,C ON—OFF
SW801 VOLTAGE SELECTOR 110—127—
220—230/240
SWM 3 FOOL PROOF ON—OFF
SWM 4 F.A.S. ON—OFF
SWM 5 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 BOOK MARK ON—OFF
SW703 CLOCK ON—OFF
SW704 TIMER/SLEEP ON—OFF
SW705 DISC 1 ON—OFF
SW706 DISC 2 ON—OFF
SW707 DISC 3 ON—OFF
SW708 DISC SKIP ON—OFF
SW709 OPEN/CLOSE ON—OFF
SW710 REWIND ON—OFF
SW711 RECORD PAUSE ON—OFF
SW712 MEMORY/SET ON—OFF
SW713 STOP ON—OFF
SW714 TUNER (BAND) ON—OFF
SW715 VIDEO/AUX ON—OFF
SW716 TAPE 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 12 TYPES OF TRANSISTOR AND LED
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
2SA1015 GR
2SA1318
2SC2389 SS
2SK246 GR
KRA107 M
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTA1274 Y
KTD2058
KTC3199 GR
KTC3203 Y
L1154GT4
4204SRT7
SLI325YC
SLI342DCB
SLI342UCB
SLI342YC
SLI342YCB
SLI342YCE
SLI342YCJ
FRONT VIEW
KDS193
Z02W5.6Y
TOP VIEW
KRC102 S
KRC104 S
KTA1298 Y
KTA1504 GR
KTC3265 Y
KTC3876 Y
TOP
VIEW
B
3
E
1
C
2
1 2 3
SVC348S

– 13 –
CD-K1861V
Figure 13 BLOCK DIAGRAM (1/3)
123418
67
18244020
45
15 23
16 26 27
7
2
25
17
29
35
14
21
22
3839284142 37 36
PU-IN SW
X1
16.93MHz
XIN
LD0
FIN2 JP–
CV+
SLC
SL1
FIN1 E F
FD
TO
SPO
SP
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
6
+5V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
SPINDLE
MOTOR
M
M
M2
SLED
MOTOR
PICKUP UNIT
9
4
10 12
IC2
LC78631E
SERVO SIGNAL
CONTROL
+B1
IC3
M63001FP
FOCUS/
TRACKING/
SPIN/SLED
DRIVER
IC1
LA9241M
SERVO AMP.
RES. CQCK. COIN SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE
Q51
SL+. SL–. DRF
987654321
GND (D) MECHA UP GND (D) DISK NO. OPEN CLOSE GND (D) M– M+
SOL +
987654321
CNP10
M
+5V
+B1
62
64
53
47
27
54
56 49
5
4
3
7 1
10
123456
10
72
67
~
45
38
39
15
1213 11
41
80
77
78
64
11 13
16
22
15
32 40 43 44
53
52
51
54
31
30
29
23
27
16
15
52
Q1
Q52
TO MAIN SECTION
(TO IC601)
XOUT
EFMO EFMI CLV+ V/P
19
HFL
20
TES
23
TOFF
24
TGL
28
JP+
29
JP–
RVSS
LCHN
AVDD
VDD
LVDD
XVDD
SW1 OPEN/CLOSE
SW2 MECHA UP SW3 DISC NNUMBER
M3 LOADING MOTOR
SOLM2
TO MAIN
SECTION
CNS10
+B5
~~
CNP11
17 26 50 51
LASER
DRIVER
IC4
BA4558F
OPE AMP.
LR
LR
QV3
QV4
QV2
QV1
+B1
XV1
4.19MHz
6
7
9
40
18
19
20
22
41
XV2
27MHz
14
13
14
ICV1
MPEG CONTROLLER
IX0313AW
ICV2
MPEG DECODER
D61012GC
ICV3
DRAM
SDM4260C
~
1
15 17 23 36
~
38 42
~
45 48 49 52
~
54 56
~
58 62
~
70 73
~
25
~
710 13 14
~
16 19
~
22 26
~
31 34
~
~
25 44 51
32
33
95
97
99
~
68
86
1
6
65
~
7
10
~
2
6
11
12
18
26
30
37
43
21
27
35
40
50
57
64
69
74
76
94
96
100
5
35
~
64 57
~
63 75 83 84 92
CD SOL
MBUSY
MCK
MDO
MDI
X1
X2
PWR_MPEG
~
36
39
CD-LD M–
CD-LD M+
MO SPEED
ICV4
VIDEO
OPERATION
AMP.
NJM2267M
JKV1
VIDEO OUT
1234
TO MAIN SECTION
(TO IC701)
CNPV2
1206
+B1
HD7 HD0
X1
AUDO
AUBCK
AULRCK
CDC2PO
CDLRCK
CDI
X2
MD15
MD12
VOUT1
VDD,CKSEL,HSELX,
HSELAAVDD, HD0
HD3
HD4
HD7
MA8 MA4 MA3
MA0
MRAS
MWE
MCAS
MD5 MD4 MD0
MD11
MD8
DQ15
DQ12
VDD
DQ0 DQ3 DQ4 DQ7 DQ8 DQ11 WE RAS A0 A3 A4 A8
+B1
+B5
16
17
25
~
33
39
42
50
45
~
VRK120K(B)
MIC1
LEVEL
JK2
MIC 2
VRK220K(B)
MIC2
LEVEL
VRK320K(B)
DIGITAL
ECHO
ICK1
MIC AMP.
M65845FP
6
25
10
5
ICK41
MIC AMP.
M65840FP
97
~
24
~
5
ICK42
BU4066BC
SWITCHING
10
7
ICK43
KIA4558P
OPE AMP.
1
33
17
6
24
~
ICK44
KIA4558P
OPE AMP.
1
7
27 26
L
R
LR
QK41
QK42
5
1
JK1
MIC 1
18
7
2
1
15
21
22
3
29
28
8
35
2
11
SOL -
1
2
3

CD-K1861V
– 14 –
Figure 14 BLOCK DIAGRAM (2/3)
Q113
Q114
X351 456kHz
FM DET CF351
+B4
+B4
+B4
+B4
VOLTAGE
REGURATER
+5V
FM +B
VT
T306
T302
CF302
DO
CE CL
DI
FE301
FM FRONT END
Q360
MPX
VCO
CUT
RL
Q354
Q353
PHASE
Q361
MPX
MPX
IN
FM/AM
OUT
IF IN
IC303
LA1832 IF
OUT
SD
FM MONO/ST MONO/ST
AM RF IN
AFC
IN
OUT
VR351
FM MUTE LEVEL AM OSC
REG INOUT VCC
FM IF IN
12 3 4589
17 19 20 18 16
15
14
12
11
10
67 13
21
22
23
24
FM IF
FM
X352
4.5MHz
OSC
STEREO
IC302
LC72131
PLL (TUNER)
INAM
FM IN
FMOSC
T351
AM IF
GND
OSC
F OUT
AM OSC fH
VOLTAGE
REGULATOR
AM ANTENNA fL
AM RF
CF352
TUNER MUTE
MUTING
SO301
ANTENNA
TERMINAL
2
8
67 3 4
1
5
4
3 6
521
17
1213
10
1116
15
2220
7
1
Q371
FM
75 ohms
GND
AM
IC303
FM IF DET./
FM MPX./AM IF
1 2
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
ALC
NOR/
HIGH T1/T2
REF L NF
R NF
PLAYBACK HEAD
RECORD
PLAYBACK
HEAD
SWITCHING
Q103~Q106
AC BIAS
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
PB
ERASE
HEAD
SWITCHING BAIS
Q126
Q124
L103
Q128
L104
Q111
Q110
Q109
Q107
Q108
SWITCHING SWITCHING
SWITCHING
+B4
1
1
2
3
4
2
3
CNS11
FROM CD VIDEO
CNP11
SWM3
FOOL PROOF
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM
5
16
4
17
3
18
2
19 1 20 9
IC601
M62439SP
AUDIO PROCESSOR
L
L
R
R
L
RL
R
L
R
L
R
TUNER
AUX
TAPE
CD
1
3
+B7
2
MUTING
Q121
Q122
–B4
13
8
BIAS
OCS
15 19
11 10
JK601
VIDEO/AUX
6
8
3
3
5
+B5
8
–
B
+B5
I
C
KI
A
OP
I
C
KI
A
OP
IC704
KIA7042AP
RESET
FROM CD VIDEO
SECTION CNPU2
CNSV2
K
SUR
R

– 15 –
CD-K1861V
Figure 15 BLOCK DIAGRAM (3/3)
Q704
+B5
Q908
Q909
Q910
Q911 +B5
D810
136 7
5
2
3
F
1 2 3 4
15 2516 26 28 373839
9 8 7 6 5 4 3 2 1
IC701
IX0314AW
SYSTEM CONTROL
MICROCOMPUTER
L
R
VDD
UNSWITCH
+B7
MEMORY
BACK UP
VDD
XL701
4.19MHz
+B5 +B7
KEY
SW701~SW725,
SW728~SW731,
SW736~SW738
Q905
Q903
Q904
Q901
Q902
+B5
M
Q907
+B1
RL901
TO CD
SECTION
M901
FAN MOTOR
JK671
HEADPHONES
SO901
SPEAKER
TERMINAL
T.F
F801
T5A L 250V
F803
T2.5A L 250V
F802
T2.5A L 250V
SW801
VOLTAGE
SELECTOR
T801
POWER
TRANSFORMER
RL801
AC POWER
SUPPLY CORD
AC 110/127/
220/230-240V,
50/60Hz
T802
POWER
TRANSFORMER
Q801
Q802
+B7 UNSWITCH
1
BAIS
T1/T2
REC
–B4
D809
D811~D814
Q803 D815
~D817
2 3
1
+B7
RX701
Q705
Q706
Q707
78
1
4
15
14
13
L-OUT
IC901
STK4113E
POWER AMP.
VH–
VH+
VL–
VL+
R-OUT
13
8
Q601
Q602
ZD802
Q603
Q604
+B1
+B4
+B5
+7V
+12V(ANALOG)
+12V(MOTOR)
Q853
Q852
Q851
Q850
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
Q702
Q703
AVDD
~~~
18
22
2
101112131415161718192021222324
25
2627
282930
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
7170696867666564636261 80797877
767574
737260595857
56
5554
535251
VDD
PHM1
D802~D805
FRONT
SPEAKER
F804
T5A L 250V
F805
T5A L
250V
F806
T2A L 250V
29 36
~
M
MM1
TAPE MOTOR
+B7
+B7
1
1
6 7
4
8
3
3
5
–B1+B5
4
8
–B1+B5
IC563
KIA4558P
OPE AMP.
IC562
KIA4558P
OPE AMP.
P
230-240V
220V
127V
110V
FL701
FL DISPLAY
IC 401
KIA4558P
SURROUND AMP.

CD-K1861V
– 16 –
Figure 16 SCHEMATIC DIAGRAM (1/13)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
+B
+
+
IC401
Q401
KRA107 M
REC_R REC_
L
CHASSIS
PIN103
MECHA BASE
L
R
RL
Vcc
GND
T1_R
T1_L
A_GND
A_GND
M_GND
ERASE
T2_R2
T2_R1
T2_L1
T2_L2
9.3V 8.6V
9.3V
0V 3.4V
3.4V
0V
0V
0V
0V 0.7V
0V
0.7V
0V 0V
0V
0.7V
0V
0V
0V
0.7V
0V 0V
0V
0V
0V
0.7V
0.7V 0V
0V
0
11.7V
R-CHL-CH
1
2
9
5
3
4
3
2
10
13
6
12
5
7
11
4
1
7
8
6
ALC
ALC
RIPPLE
Nor/CrO2
–
+
–
+
Hich=T1
+ +
–
–
Hich=CHROME
56K
112K
56K
112K
1
3
2 1
3
2
1
3
2
6
5
7
4
ERASE
HEAD
R-CH
L-CH
P24 2 - E
TO POWER AMP.PWB
CNP901
HP_RLY
HP_GND
HP-R CH
HP-L CH
SP_RLY
SP_DET
–15V
GND
M_GND
M_+12V
A_GND
R_CH
L_CH
+B
–B
+B +B
–B
MUTING
1
2 3
1
2 3
+B
+B
TAPE2
RECORD/
PLAYBACK HEAD
CNS102
CNS101
TAPE1
PLAYBACK HEAD
+B
MAIN PWB-A1
FM SIGNAL
CD SIGNAL RECORD SUGNAL
R123
3.9K
R121
100K
C121
1/50
C115
47/25
R623
5.6K
C627 22/25
R132
33K
R120
56
C122
1/50
C116
47/25
R635
330
R636 330 R625
22K
R653
100K R652
100K
R654
2.2K
R656
10K C725
10/16
R655
2.2K
C604
4.7/50
R616
3.3K
R615
3.3K
R146
10K
C145
22/25
C102
0.001
Q104
2SC2389 SS
R102
1K
C117
0.033
C107
0.001
R630 560(1/2W)
C612 0.033
C141
1/50
C106
180P
C105
180P
R108
47K
R155
150 R175
1K
CNS901
R629
560(1/2W)
R610
10K
R153
10K
C156
3.3/50
R109
4.7K
R605 1.5K
R145
10K
Q608
KTC3199 GR
R611
330
C153
100/16
C129
470P
R603 1.5K
C634
0.0082
C635
0.0082
C112
330P
R609
2.2K
R125
5.6K
R160
150
C615
0.22
C616
4.7P
R607 1.5K
R126
5.6K
Q105
2SC2389 SS
R136
18K
C628
0.22
R101
1K
C127
0.022
R638
220K
C605
4.7/50
Q111
KRC104 M
SWITCHING
R137
6.8K
C133
22/25
R140
560
R172
220K
Q114
KTC3199 GR
C134
22/25
C624
0.001
CNP101
ZD602
MTZJ2.4B
C620
10/50
C603
4.7/50
C120
560P
Q113
KTC3199 GR
R104
2.2K
R170
1.8K
R142
56
R174 5.6K
Q601
KTC3199 GR
R113
10K
Q107
KTC3199 GR
SWITCHING
C111
330P
Q106
2SC2389 SS
C614 0.22
R606 1.5K
R158
220
R613
10K
Q607
KTC3199 GR
R156
220K
R118
1K
C606 4.7/50
R624
330
CNP102
R167
100K
R617
2.2K
C623
0.001
Q602
KTC3199 GR
R115
4.7K
R141
56
C617
10/50
R105
3.3K
C119
560P
IC601
M62439SP
AUDIO PROCESSOR
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C101
0.001
C639
0.001
ZD601
MTZJ2.4B
C619
0.022
R103
2.2K
C130
470P
R173
5.6K
R122
100K
L103
100µH
R614
10K
C109
0.047
R106
3.3K
C132
0.001
R604 1.5K
Q103
2SC2389 SS
R135 18K
Q122
KTC3199 GR
C640
0.001
R114
10K
R124
3.9K
C602
4.7/50
C118
0.033
C611 0.033
C136
0.082
R134 68K
R107
47K
R112
10K
C146
220/10
C114
330P
C629
22/25 R628 22K
IC101
AN7345K
PLAYBACK AND
RECORD/
PLAYBACK
AMP.
R169
1.8K
C131
0.001
Q110
KRC104 M
SWITCHING
R117
1K
Q121
KTC3199 GR
MUTING
C155
3.3/50
R110
4.7K
R131
33K
R608 1.5K
C154
47/16
C140
0.0033
C108
0.001
Q108
KTC3199 GR
SWITCHING
R171
220K
C622
10/50
Q109
2SA1318
SWITCHING
R154
10K
R618
2.2K
C142
1/50
R157
220K
R111 10K
C139
0.0033
C621
10/50
R626
2.2K
R637
220K
R138
6.8K
C135
0.082
Q124
2SA1015 GR
SWITCHING
R166
47K
R602 1.5K
C618
0.022
R139
560
C128
3.3/50
C113
330P
C613 0.22
R601 1.5K
C601
4.7/50
R612
15K
24 23 22 21 20 19 18 17 16 15 14 13
12
11
10
9
8
7
6
5
4321
C151
C150
0.0039
L601
2.2µH
D101
1SS133
D102
1SS133
C103
0.01
R119
56
7
1
6
2
5
3
4
8
R412
2.2K
R411
2.2K
R416
220
C412
10/50
C413
10/50
R410
4.7K
R409
4.7K
R404
1K
R403
1K
C402
2.2/50
C401
2.2/50
C406
22P
C405 22P
C408
0.0047
C407
0.0047
R408
4.7K
R407
4.7K
R406
820
R405
820
R402
100K
C404
0.0047
C403 0.0047
R414
2.2K
R419
220
C410
47/25
C409
0.022
R417
6.8K
R415
4.7K
R418 100K
R413 2.2K
Q402
2SK246 GR
D401
1SS133
1
2 3 R420
2.2K
C411
3.3/50
+B
+B
PLAYBACK SIGNAL
D
SG
R401
100K
IC401
KIA4558P
SURROUND AMP.
0V
4.3V
4.3V
-5.5V
0V
0V
0V
0V
0V 0V 0V
2.6V 3.5V 3.5V
2.6V
0V
0V
0V
0V
0.6V
0.6V
-5.5V
2V
2V

– 17 –
CD-K1861V
Figure 17 SCHEMATIC DIAGRAM (2/13)
78 9 10 11 12
+B
REC_L
CHASIS
+12V
–15V
SPA SIG
A_+12V
M_+12V
M_GND
A_GND
CD_GND
+5V
GND
+B
0V
0V
0V
11.7V
11.6V
0V
0V
SPEANA3
M_+12V
TUN_SM
3
2
1
L-CH
R-CH
0V
0V
0V
–B
–B
+B +B
+B
+B +B
+B
+B
+B
+B
–B
–B
DI
CE
DO
HP-R CH
CLK
HP_RLY
HP_GND
HP-L CH
SPEANA1
SPEANA2
SP_DET
SP_RLY
HI_CUT
S_MUTE
T_T1 T2
T_BIAS
REC/PLAY
D_GND
+5V
SPN_P
P18 1 - D
TO DISPLAY PWB
+B
+B
+B
+B
+B
+B
+B
+B
3
2
1
CNS801
CNP801
P25 7 - F
TO POWER SUPPLY PWB
CNS11
+12V +7V CD_GND L-CH A_GND
R-CH
+B
1
2 3
BIAS OCS.
+B
11.6V
C641
0.001
R650
1K
R651
1K
R642
47K
R640
47K
R641
2.7K
R639
2.7K
C850
3300/25
C556
0.0068
R567
270K
C559
0.0027
C555
0.0068
R555
56K
R566
2.2M
IC563
KIA4558P
OPE AMP.
C553
0.0027
D551
1SS133
R570
220K
R562
390K
R551
10K
R573
560K
R572
2.2M
C562
0.022
R568
220K
R553
12K
R561
15K
C551
270P
R560
470K
C557
270P
R558
68K
R564
390K
C561
0.022
R556
33K
D602
1SS133
C631
390P
R631
8.2K
D601
1SS133
R634
39K
C630
0.001
R633
39K
R632
8.2K C632
390P
R160
150
R638
220K
R158
220
R167
100K
Q126
KRC104 M
BIAS
R164
4.7K R162
47K
L103
100µH
G
R
5
7
K
R637
220K
Q124
2SA1015 GR
SWITCHING
R166
47K
C853
0.047(ML)
C854
47/25
D853
1SS133
C852
0.047(ML)
R852
22K
C851
22/25
R851
33
D852
1SS133
Q853
KIA78L05
31
Q850
KTD2058
D851
1SS133
C859
0.1(ML)
C856
0.1(ML)
C855
0.1(ML)
C858
0.1(ML)
C860
47/25
R854
10K
Q852 KIA7806P
3
1
C857
47/25
R853
22K
D850
1SS133
Q851
KIA7812P
3
1
2
2
2
1
42
3
5
6 8
7
R580
100K R579
100K R578
100K
C568
2.2/50
C567
2.2/50
C566
2.2/50
D554
1SS133
D555
1SS133
D556
1SS133
ZD551
MTZJ6.2C
C563
0.022 R574
330
R575
330
IC562
KIA4558P
4
1
8
7
2
3
5
6
C569
0.022
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
21
22
23
24
JK601
VIDEO/AUX IN
C151
0.027(ML)
L104 330µH
R168
12
Q128
KTC3203 Y
C152
47/25
C150
0.0039
CNP701
BI801
1
1
2
2
3
3
4
4
5
5
6
6
BI11
CNS701
+B
OPE AMP.
SUR_ON/OFF
CNP11
P23 12 - C
TO CD VIDEO PWB
A_+12V
D_GND
CLK
CE
DO
TUN_L
A_GND
TUN_R
CNS3039
8
7
6
5
4
3
2
1
CNP303
P28 6 - B
TO TUNER PWB
DI
1
24

CD-K1861V
– 18 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
Figure 18 SCHEMATIC DIAGRAM (3/13)
1
2
3
4
JK671
HEADPHONES
R720 R719 R717
R747
10K
R753
10K
R754
10K
R752
10K
R760
10K
D716
1SS133
Q702
KTA1273 Y
C705
47/16
R758
1.2K
R759
10K
Q703
KTA1271 Y
D714
1SS133
D721
1SS133
D715
1SS133
R726 10K
10K 10K 10K 10K 10K
R729
10K
R728 10K
IC701
IX0314A
W
SYSTEM CO
N
MICROCOM
P
R724
R727
C702
1/50
R716
33
R721
100K R722
100K R723
100K
C720
47/50
R707
1K
R708
1K
R706
1K
Q706 KTC3199 GR
Q705 KTC3199 GR
Q707 KTC3199 GR
R749
R748
10K
R709
R710
R711
R712
R713
R715
R737 R736
D703
1SS133
R734 R733 R732 R731 R730
LED722 4204SRT7
R735
C704
0.001
C703
0.001
R714 1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
R701
R702
R703
R705
R739
R738
JOG701
VOLUME
JOG
NC
NC
MDO
SP_RLY
PHM1
PHOTO
INTERRUPTER
_
MM1
TAPE MOTOR
2
MOTOR
GND
+12V
T2 RUN
T1 RUN
SOLENOID
CAM SW
FWM1
SWM3
FOOL PROOF.
CNPM2
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM FWM2
REC/PLAY
AC RLY-CON
AB
KEY JOG B
KEY JOG A
12V
12V
12V
12V
0V
0V
U/D SW
G8
G9
G10 G11
VLOAD
S16
S17
S18
S19/DIST1
S20/DIST2
S21/DIST3
S22/DIST4
DISTOUT
SPN_P
SP-DET
POWER
HI-CUT
S MUTE
T_T1T2
T-BIAS
H/P FPA T1FAS CAM SW VDD T_MOT T_SOL TIMER LED DNO SW VSS REMOCON
SYS STOP
S15
S14
S13
S12
S11
S10
S9 S8 S7 S6 S5 S4 S3 S2 S1
3
394041424344454647484950
53
54
52
51
53
52
51
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81 82 83 84 85 86 87 88 89 90 91 92
9
78
79
80
56
55
1
2
3
4
5
6
7
8
9
10
22
21
20
19
18
17
16
15
14
13
12
11
23
SPEANA1
SPEANA2
SPEANA3
+5V
TUN SM
M_+12V
D_GND
REC/PLAY
T_BIAS
T_T1 T2
S.MUTE
HI_CUT
SP_RLY
SP_DET
SPN_P
11 22 33
4 4
5 5
66
7 7
88
9
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
2
1 2 3
FL701
F2 F2 F2
G11 G10 G09
G08
S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22
DISPLAY PWB-A2
+B
+B
+B
HP_RLY
HP_GND
HP-R CH
HP-L CH
DO
CLK
CE
DI
C673
0.01
+B
+B
+B
+B
+B
+B
+B
BI702
FPA
1
2
3
4
5
6
7
8
9
10
11
12
10
11
12
TAPE MECHANISM
PWB-F
M
+B
24
CNS701
FFC701
CNP701
P17 12 - F
TO MAIN PWB CNPV2
P20 1 - E
TO CD VIDEO PWB
+B
+B
CNPM1
CNSM1
10K
1K
1K 1K 1K 1K 1K 1.8K 2.2K 2.2K
+
1
FM SIGNAL
SURROUND
CNSV2
-22V
-22V
4.5V
-22V
-22V
4.5V
-22V
-22V
4.5V

– 19 –
CD-K1861V
Figure 19 SCHEMATIC DIAGRAM (4/13)
78 9 10 11 12
RD29
12K
RD17
6.8K RD18 12K RD19 22K RD20 68K
SW702
BOOK
MARK
SW706
KEY
CONTROL,A
SW737 SW738
KEY
CONTROL,C
KEY
CONTROL,B
RD32
22K RD31
3.3K RD30
3.9K
C715
47/16
IC702
BU2092F
INPUT/OUTPUT
EXPANDER
C722
10/50
IC704
KIA7042AP
R797
100K
Q704
KRC102 M
D718
1SS133
C712
3.3/50
C713 0.022
D705
1SS133
R795
47K
D717
1SS133
C711
0.01
L702
100µH
C723
0.1/50
10K
R757
10K
R756
10K
R755
10K
R753
10K
7
54
0
K
R752
10K
D720 1SS133
R798 100
D719
1SS133
C716
C717 0.022
47/25
C714
0.022
RX701
N63H380A
R781
390
LED724
LED723
R799
4.7K
IC701
I
X0314AW
T
EM CONTROL
R
OCOMPUTER
C706
1/50
R780
10K
LED721 LED720 LED719 LED718 LED717 LED716
LED716,LED717,
LED721,LED723,LED724:SLI342YCJ
LED718:SLI325YC
LED719,LED20:SLI342YCE
R782 1K
1K 1K 1K 1K 1K
R784 R785 R786 R787 R783
RS703 RS702 RS701
LED704
LED703
SLI342DCB
LED702
SLI342YCB
LED701 L1154GT4
RS707
470
RS706
470
IC703
BU2092F
INPUT/OUTPUT
EXPANDER
RS704 RS705
RS701~RS705:470
LED704:SLI342UCB
R751
3.3K
R750
10K
R749
10K
R748
10K
R774
R771
R775
R773
R770
R769
XL701
4.19MHz
C707
15P
R737 R736
C708
18P
R768
R767
R766
R765
R764
R763
R762
R772
R778
R777
R776
R743
1K
R742
1K
R744
1K
R745
1K
C709
0.022
R741 1K
R740
1K
R739 R738
RD02
1.2K
SW703
RD03
1.5K
RD01
820 RD04
1.8K
SW704
RD05
6.8K
SW705
RD06
12K
SW707 SW708
RD07
22K
SW706 SW709
RD09
68K
NC
–VP
VF2
VF1
CNS704
CNS12
VIDEO
TAPE
TUNER
CD
PLAY STOP
D_GND
UN_SW 5V
AC_RLY CON
P
LAY
L
Y-CON
5V BACK UP
Q10
VDD
OE
Q11 Q10
Q9 Q8 Q7 Q6 Q5
Q4 Q3 Q2 Q1 Q0 LCK
CLOCK DATA VSS
VSS
DATA
CLOCK
LCK
Q0 Q1 Q2 Q3 Q4
Q5 Q6 Q7 Q8 Q9
Q11
OE VDD
PCCL CQ CK(DSP) CO IN(DSP) SQ OUT(DSP) SLD+ RES(DSP) WRQ(DSP) RWC(DSP) DISC NO OPEN/CLOSE D_GND PUIN SW SLD– UP/DOWN DRF(ASP)
TIMER/
SLEEP
CLOCK OPEN
/CLOSE
ON/
STAND-BY
U/D SW
VDD
G1 G2 G3 G4 G5 G6 G7 G8 G9
G10 G11
D
S
TIMER
LED
DNO SW VSS REMOCON SYS STOP O/C SW PUIN SW
KEYIN1 KEYIN2 KEYIN3
T2 RUN
TUN SM
SPEANA1
SPEANA2
SPEANA3
AVSS
SLD–
SLD+
FRF(DRF)
SQOUT
PCCL
VPP
LCK2
LCK1
CLK
DO
CD DSP RES
XT2
S2
S1
CD DSP WRQ
CD DSP RWC
CD DSP COIN
CD DSP CQCK
RESET
AVDD AVREF
X2
X1
VDD
CE
DI
1
2
3
1
2
3 4
5
6
7
8
9
30
313233343536373839404142
4
3
29
28
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
8
88990919293949596979899 100
1
2
3
1 2 3
1 2 3 4 5 6 7 8 9
101112131415161718
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
10 15
14
1312
11
10 15
14
1312
11
1
2
3
4
5
6
1
2
3
4
5
6
2
4252627282930313233343536 373839
F1 F1 F1 G11 G10 G09 G08 G07 G06 G05 G04 G03 G02 G01 S01
S02
BI12
+B
+B
+B +B
1234
5
6
7
8
9
+B
BI704
+B
+B
+B
+B
+B
+B
1
2
FW703
1
6
1
6
DISC
SKIP
DISC3DISC2DISC1
RS712
1.2K
C718
47/25 C719
0.022
SWITCH PWB-A3
+B +B
P22 6 - H
TO CD VIDEO PWB
CNP12
CNP704
+B
+B RD25
2.2K
RD24
1.8K RD26 3.3K
RD10
820
SW711
RD12
1.5K
SW712
RD14
2.2K
RD22
1.2K
SW714
RD13
1.8K
SW713
RD15
3.3K
RD11
1.2K
SW716 SW717 SW718
AUDIO
MODE
SW719
PLAYBACK
CONTROL
SW720
ON SCREEN
DISPLAY
SW721
DIGEST
RD16
3.9K
SW715
SW710
SW725
RD23
1.5K
SW730
RD28
6.8K
RD21
820
SW722 SW724
RD27
3.9K
SW728 SW729SW723
DIMMER
SW731
SURROUND
X-BASS/
DEMO
TUNING
DOWN
TUNING
UP
CD
MEMORY/
SET
RECORD
PAUSE
EQUALIZER
FAST
FORWARD PLAY
STOP
REWIND TUNER
(BAND) TAPE
VIDEO/
AUX
C710
1000/6.3
P25 7 - G
TO POWER
SUPPLY PWB
RESET
LED707~LED710:L1154GT4
LED706 SLI342YCB
RS711
1.5K
NIGHT RIDER 7
CD DISC 1 CD DISC 2 CD DISC 3
NIGHT RIDER 6
NIGHT RIDER 1 NIGHT RIDER 2 NIGHT RIDER 3 NIGHT RIDER 4
LED705 SLI342DCB
NIGHT RIDER 5
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
10K 1K
1K 1K
REMOTE
SENSOR
SW701
R761
1K
10 11 12 14 15 16 17 1813
RS708
470
RS709
470
RS710
470
IC703
IC702
R791
680
LED711
SLI342YC
LED710 LED709 LED708 LED707
4.7V 0V
0V 3

CD-K1861V
– 20 –
Figure 20 SCHEMATIC DIAGRAM (5/13)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
CV1
47/6.3
CV3
0.22
QV1
PC29M33T
XV1
4.19MHz
RV86
4.7K
RV11
1K
RV89 2.2K RV88
2.2K
RV87 2.2K
RV19 1K
RV17 1.2K
RV18 1K
RV16 1.2K
RV94 10K
RV93 10K
RV43 3.9K RV44 3.9K RV46 3.9K RV47 3.9K RV48 3.9K RV49 3.9K RV50 3.9K
RV59
3.9K
RV2
4.7K
QV2
KTA1298Y
RV1
10K DV4
KDS193 QV3
KRC104S
CV4
47/6.3
CV5 0.022
RV85
10K
QV4
KTA1298Y
RV84
4.7K
DV5
KDS193
RV23
270
RV24 270
RV45 3.9K RV42 3.9K RV41 3.9K RV40 3.9K RV39 3.9K RV37 3.9K RV38 3.9K
RV57 3.9K
RV56 3.9K
RV20 1K
RV32 270
RV22 1K
RV6 1K
RV7 1K
RV30 270
RV9 1K
RV26 270
CV2
0.022
RV58 3.9K
RV8 1K
RV12 1K RV34 270
RV31 270
RV15 1K
RV35 270
RV36 270
RV27 270
RV21 270
RV28 270
RV29 270
C
4
6
4
6
3
6
2
1
6
6
0
59
5
8
5
7
6
5
5
5
5
4
5
3
5
2
5
1
0
5
4
9
32
3
1
3
0
9
2
2
8
2
7
62
2
5
32
42
2
2
2
1
0
2
1
9
8
1
7
1
RV25 270
RV13 1K
RV14 1K RV33 270
RV10 1K
P23 12 - E
TO CD SECTION
P23 12 - E
TO CD SECTION
KEY CONT.
VOCAL CANCEL
HD0
HD1
K_C_STRB
K_C_CLK
K_C_DATA
VSS0 VDD0
PWR_MPEG
MDI
MDO
MCK
SBUSY
MBUSY
VDD1
AVSS
HD7
HD6
HD5
HD4
HD3
HD2
AVREF AVDD RESET
XT2
XT1
IC
X2 X1
VSS1
INT
HCS
HRD
HWR
HDAK
HA
MPEG RESET
CD-LD M-
CD-LD M+
CD-SOL
MO_SPEED
4
8
4
7
6
4
4
5
44
4
3
4
2
4
1
40
3
9
3
8
7
3
3
6
5
3
3
4
3
3
6
1 1
5 4
1 1
31 21
11
0 9 8 7 6 5 4 3 2 1
1
+7V
LRCK
BCLK
DATAD
GND(D)
C2PO
1
4
3
2
CNPV2
MBUSY
MCK
MDO
MDI
SBUSY
RESET
AULRCK
AUDO
AUCLK
AUBCK
+5V
MO_SPEED
SOL
LD_M+
LD_M-
ICV1
MPEG CONTROLLER
IX0313AW
+B
+B
2
1
3
+B
+B
10
13
12
11
4
9
18
15
14
17
16
20
22
21
8
6
7
CNSV2
P18 1 - B
TO DISPLAY
PWB
P23 12 - B
TO CD SECTION
23
24
25
26
27
28
2
1 3
5V
5V
4.4V
8.4V
8.2V
7.7V
1
2
3
4
5
6
7
8
9
10
11
12
OUT(L)
IN(L)
GND(A)
+12V(A)
OUT(R)
IN(R)
GND(D)
AUDSW2
SDATA
SCK
STROBE
KEYCON
IN(R)
OUT(R)
+12V(A)
GND(A)
IN(L)
OUT(L)
P27 12-F
CNP1
TO KARAOKE
PWB