Sharp CD-BK310V User manual

– 1 –
CD-BK310V
No. S6137CDBK310V
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION..................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................. 3
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 6
DISASSEMBLY.................................................................................................................................................................. 9
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12
ADJUSTMENT ................................................................................................................................................................. 13
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 18
TYPES OF TRANSISTOR AND LED................................................................................................................................18
BLOCK DIAGRAM ........................................................................................................................................................... 19
SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD................................................................................................24
VOLTAGE ........................................................................................................................................................................ 43
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 44
TROUBLESHOOTING ..................................................................................................................................................... 45
FUNCTION TABLE OF IC................................................................................................................................................ 49
FL DISPLAY......................................................................................................................................................................60
REPLACEMENT PARTS LIST/EXPLODED VIEW
VIDEO CD MINI SYSTEM
MODEL CD-BK310V
• 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
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
CD-BK310V Video CD Mini System consisting of
CD-BK310V (main unit) and CP-BK310 (speaker system).
MANUAL
NTSC/PAL

CD-BK310V
– 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,THEPOWERISTURNEDONWITHOUTACOMPACTDISCINPOSITIONANDTHE
PICKUP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT
LOOK INTO THE PICKUP LENS.
2-THE LASER POWER OUTPUT OF THE PICKUP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY
PRESET BEFORE SHIPMENT.
DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP 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.
VOLTAGE SELECTION
Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage
as follows.
Turntheselector witha screwdriver untilthe appropriatevoltagenumber appearsinthe window(110 V, 127V, 220Vor 230V-240V AC).
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-BK310V
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.
SPECIFICATIONS
CD-BK310V
CP-BK310
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCA0003AW00
QACCB0011AW00
QACCE0010AW00
QACCJ0007AW00
QPLGA0003AWZZ QPLGA0004AWZZ
General
Amplifier
Video CD
CD player
Power source AC 110/127/220/230 - 240 V, 50/60 Hz
Power consumption 210 W
Dimensions Width: 270 mm (10-11/16")
Height: 330 mm (13")
Depth: 372 mm (14-11/16")
Weight 8.7 kg (19.2 lbs.)
Output power MPO: 480 W (240 W + 240 W) (10 % T.H.D.)
Main speaker (woofer and tweeter): 200 W (100 W + 100
W)
Subwoofer: 280 W (140 W + 140 W)
RMS: 250 W (125 W + 125 W) (10 % T.H.D.)
Main speaker (woofer and tweeter): 100 W (50 W + 50 W)
Subwoofer: 150 W (75 W + 75 W)
RMS: 188 W (94 W + 94 W) (0.9 % T.H.D.)
Main speaker (woofer and tweeter): 72 W (36 W + 36 W)
Subwoofer: 116 W (58 W + 58 W)
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 kohms
Microphone: 1 mV/600 ohms
Video output format PAL/NTSC
Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser pickup
D/A converter 1-bit D/A converter
Frequency response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Tuner
Cassette deck
Frequency range FM: 88 - 108 MHz
AM: 531 - 1,602 kHz
Frequency response 50 - 14,000 Hz (Normal tape)
Signal/noise ratio 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter 0.3 % (WRMS)
Type 3-way type speaker system
5 cm (2") Tweeter
13 cm (5-1/4") Woofer
16 cm (6-1/2") Subwoofer
Maximum input power
(Total) 250 W
Rated input power
(Total) 125 W
Impedance 6 ohms
Dimensions Width: 287 mm (11-5/16")
Height: 330 mm (13")
Depth: 281 mm (11-1/16")
Weight 5.0 kg (11.1 lbs.)/each

CD-BK310V
– 4 –
NAMES OF PARTS
CD-BK310V
Front panel
1.Video CD/CD/MP3 Disc Tray
2.Timer Set Indicator
3.On/Stand-by Button
4.Tape 2 Cassette Compartment
5.Tape 1 Cassette Compartment
6.Equalizer Mode Select Button
7.Volume Control
8.Extra Bass/Demo Mode Button
9.Video CD/CD/MP3 Disc Tray Open/Close Button
10.Video CD/CD/MP3 Disc Number Select Buttons
(with Indicator)
11.Video CD/CD/MP3 Disc Skip Button
12.Tape 2 Reverse Play Button (with Indicator)
13.Video CD/CD/MP3 Disc Button
14.Karaoke Mode Button
15.Tuner (Band) Button
16.Video CD Playback Control Button
17.Video CD On Screen Display On/Off Button
18.Video CD Digest Button
19.Tuning and Time Up Button
20.Dimmer Button
21.Clock Button
22.Timer/Sleep Button
23.Headphone Socket
24.Video/Auxiliary Button
25.Tape (1 2) Button
26.Video CD Stop or Return, CD/MP3 Disc/Tape Stop Button
(with Indicator)
27.Video CD Play or Repeat or Select or Resume, CD/MP3 Disc Play or
Repeat, Tape 1 Play, Tape 2 Forward Play Button
(with Indicator)
28.Tape 2 Reverse Mode Select Button
29.Video CD Skip or Next, CD/MP3 Disc Track Up or Fast Forward,
Tape 2 Fast Wind, Tuner Preset Up Button
30.Tuning and Time Down Button
31.Memory/Set Button
32.Tape 2 Record Pause Button
33.Video CD Skip or Previous, CD/MP3 Disc Track Down or Fast
Reverse, Tape 2 Fast Wind, Tuner Preset Down Button
34.Microphone Level Control
35.Microphone Socket
20 27
26
24
25
1513 1412
19
30 31 32 34 3533
28
29
21
22
23
1716 18
4
5
678 9
10
11
1
2
3
Display
1.Extra Bass Indicator
2.FM Stereo Mode Indicator
3.FM Stereo Receiving Indicator
4.Karaoke Mode Indicator
5.Video CD/CD/MP3 Disc Repeat Play Indicator
6.Video CD/CD/MP3 Disc Pause Indicator
7.Video CD/CD/MP3 Disc Play Indicator
8.Tape 2 Record Indicator
9.Tape Reverse Mode Indicator
10.Video CD/CD/MP3 Disc Number Indicators
11.Timer Play Indicator
12.Memory Indicator
13.Tape 2 Reverse Play Indicator
14.Tape 1 Play or Tape 2 Forward Play Indicator
15.Sleep Indicator
16.Timer Recording Indicator
17.Spectrum Analyser/Volume Level Indicator
17
17 17
1
234 6
8
913 14 15 167
10
11
12
5

– 5 –
CD-BK310V
CD-BK310V
Rear panel
1.FM 75 Ohms Aerial Terminal
2.FM Aerial Earth Terminal
3.AM Loop Aerial Socket
4.Span Selector Switch
5.Video/Auxiliary (Audio Signal) Input Sockets
6.Video Output Socket
7.Speaker Terminals
8.AC Power Lead
9.AC Voltage Selector
1
3
4
5
6
8
9
2
7
Remote control
1.Remote Control Transmitter
2.Video CD/CD/MP3 Disc Number Select Buttons
3.Echo Level Up and Down Buttons
4.Karaoke Mode Button
5.Video CD Auto/On Button
6.Video CD Playback ControlAuto/Off Button
7.Video CD On Screen Display On/Off Button
8.Video CD/CD/MP3 Disc Clear Button
9.Video CD Digest/Time Search Button
10.Video CD Skip or Previous, CD/MP3 Disc Track Down or Fast Reverse,
Tape 2 Fast Wind, Tuner Preset Down Button
11.Video CD Bookmark Button
12.Tape 2 Reverse Play Button
13.PAL/NTSC Select Button
14.Video CD/CD/MP3 Disc Button
15.Tape (1 2) Button
16.On/Stand-by Button
17.MP3 Disc Display Button
18.Video CD/CD/MP3 Disc Direct Search Buttons
19.Video CD/CD/MP3 Disc Random Button
20.Video CD/CD/MP3 Disc Memory Button
21.Video CD Skip or Next, CD/MP3 Disc Track Up or Fast Forward, Tape 2
Fast Wind, Tuner Preset Up Button
22.Video CD/CD/MP3 Disc Pause Button
23.Video CD Play or Repeat or Select or Resume, CD/MP3 Disc Play or
Repeat, Tape 1 Play, Tape 2 Forward Play Button
24.Video CD Stop or Return, CD/MP3 Disc/Tape Stop Button
25.Extra Bass Button
26.Equalizer Mode Select Button
27.Volume Up and Down Buttons
28.Tape 2 Record Pause Button
29.Tuner (Band) Button
30.Video/Auxiliary Button
1
2
18
19
20
22
21
23
27
3
7
4
5
6
8
9
11
10
13
12
28
17
16
25
24
26
29
15
30
14
Buttons with " " mark in the illustration can be operated on the remote control
only.
Other buttons can be operated both on the main unit and the remote control.

CD-BK310V
– 6 –
OPERATION MANUAL
CP-BK310
Speaker system
1.Subwoofer
2.Bass Reflex Duct
3.Tweeter
4.Woofer
5.Speaker wire for SUBWOOFER terminals
6.Speaker wire for MAIN terminal
5
6
3
4
2
1
Setting the AC voltage selector
Check the setting of the AC voltage selector located on the rear panel before plug-
ging the unit into a wall socket. If necessary, adjust the selector to correspond to the
AC power voltage used in your area.
Turn the selector with a screwdriver until the appropriate voltage num-
ber appears in the window (110 V, 127 V, 220 V or 230 V - 240 V AC).
Connecting the AC power lead
After making all connections, plug the unit. If you plug the unit first,
the unit will enter the demonstration mode.
Note:
Unplug the AC power lead from the wall socket if the unit will not be in use for a pro-
longed period of time.
AC Plug Adaptor
In areas (or countries) where a wall socket as shown in illustration is used, connect
the unit using the AC plug adaptor supplied with the unit, as illustrated. The AC plug
adaptor is not included in areas where the wall socket and AC power plug can be
directly connected (see illustration ).
Setting the FM/AM span selector
The International Telecommunication Union (ITU) has established that member coun-
tries should maintain either a 100 kHz or a 50 kHz interval between broadcasting fre-
quencies of FM stations and 10 kHz or 9 kHz for AM station. The illustration shows
the 50/9 kHz zones (regions 1 and 3), and the 100/10 kHz zone (region 2).
Before using the unit, set the SPAN SELECTOR switch (on the rear panel) to the
interval (span) of your area.
To change the tuning zone:
Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD programme.
1
2
1 Press the ON/STAND-BY button to enter the stand-by mode.
2 Set the SPAN SELECTOR switch (on the rear panel) as follows.
For 50 kHz FM interval (9 kHz in AM) 50/9
For 100 kHz FM interval (10 kHz in AM) 100/10
3 Whilst pressing down the button and the X-BASS/DEMO button, press the ON/
STAND-BY button until "CLEAR AL" appears.

– 7 –
CD-BK310V
Setting the Clock
In this example, the clock is set for the 24-hour (0:00) display.
Note:
The "CLOCK" or time will flash at the push of the CLOCK button when the AC power
supply is restored after a power failure or unplugging the unit.
Readjust the clock as follows.
To readjust the clock:
Perform "Setting the Clock" from the beginning. If the time display is flashing, step 3
(for selecting the 24-hour or 12-hour display) will be skipped.
To change the 24-hour or 12-hour display:
1
Press the ON/STAND-BY button to turn the power on.
2
Press the CLOCK button and within 5 seconds, press the MEMO-
RY/SET button.
3
Press the TUNING/TIME ( or ) button to select 24-hour or 12-
hour display and then press the MEMORY/SET button.
"0:00" The 24-hour display will appear.
(0:00 - 23:59)
"AM 12:00" The 12-hour display will appear.
(AM 12:00 - PM 11:59)
"AM 0:00" The 12-hour display will appear.
(AM 0:00 - PM 11:59)
Note that this can only be set when the unit is first installed or it has been reset.
4
Press the TUNING/TIME ( or ) button to adjust the hour and then
press the MEMORY/SET button.
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 automatically to"PM".
5
Press the TUNING/TIME ( or ) button to adjust the minutes and
then press the MEMORY/SET button.
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 will not advance even if minutes advance from "59" to "00".
The clock begins counting from "0" seconds. (Seconds are not displayed.)
The time display will disappear after a few seconds.
To confirm the time display:
Press the CLOCK button.
The time display will appear for about 5 seconds.
1 Clear all the programmed contents.
2 Perform "Setting the Clock" from the beginning.
Remote Control
Test of the remote control
Face the remote control directly to the remote sensor on the unit.
The remote control can be used within the range shown below:
Press the ON/STAND-BY button. Does the power turn on? Now, you can enjoy the
music.
Remote sensor
0.2 m - 6 m
(8" - 20')

CD-BK310V
– 8 –
Troubleshooting Chart
Many potential problems can be resolved by the owner without calling a service tech-
nician.
If something is wrong with this product, check the following before calling your autho-
rised SHARP dealer or service centre.
General
Video CD
CD player
Tuner
Cassette deck
Karaoke
Remote control
Symptom Possible cause
The clock is not on time. Did a power failure occur? Reset the
clock.
When a button is pressed, the unit
does not respond. Set this unit to the power stand-by mode
and then turn it back on.
If the unit still malfunctions, reset it.
No sound is heard. Is the volume level set to "0"?
Are the headphones connected?
Are the speaker wires disconnected?
Isthekaraokemode set to "L-CH","R-CH"
or "V-CANCEL"?
Symptom Possible cause
The picture is not displayed during
playback. Is the TV unplugged?
Is the unit connected improperly?
Is the input selector on the TV set to other
than "VCR"?
Is the unit being played without selecting
video CD?
The picture quality is poor, or it is
distorted. Is the disc very dirty?
Symptom Possible cause
Playback does not start. Is the disc loaded upside down?
Playback stops in the middle or is
not performed properly. Does the disc satisfy the standards?
Is the disc distorted or scratched?
Playback sounds are skipped, or
stopped in the middle of a track. Is the unit located near excessive vibra-
tions?
Is the disc very dirty?
Has condensation formed inside the unit?
Symptom Possible cause
Radio makes unusual noise con-
secutively. Is the unit placed near the TV or comput-
er?
Is the FM aerial or AM loop aerial placed
properly? Move the AC power lead away
from the aerial if located near.
Symptom Possible cause
Cannot record. Is the erase-prevention tab removed?
Cannot record tracks with proper
sound quality. Is it a normal tape? (You cannot record on
a metal or CrO tape.)
Cannot erase completely.
Sound skipping. Is there any slack?
Is the tape stretched?
Cannot hear treble. Are the capstans, pinch rollers, or heads
dirty?
Sound fluctuation.
Cannot remove the tape. If a power failure occurs during playback,
the heads remain engaged with the tape.
Do not open the compartment forcibly.
Wait until electricity resumes.
Symptom Possible cause
The vocal part of a multiplexed
disc is not heard. Isthekaraokemode set to "L-CH","R-CH"
or "V-CANCEL"?
Symptom Possible cause
The remote control does not oper-
ate. Is the AC power lead of the unit plugged
in?
Is the battery polarity respected?
Are the batteries dead?
Is the distance or angle incorrect?
Does the remote control sensor receive
strong light ?
Troubleshooting Chart
If trouble occurs
When this product is subjected to strong external interference (mechanical shock,
excessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is
operated incorrectly, it may malfunction.
If such a problem occurs, do the following:
1 Set the unit to the stand-by mode and turn the power on again.
2 If the unit is not restored in the previous operation, unplug and plug in the unit,
and then turn the power on.
Note:
If neither operation above restores the unit, clear all the memory by resetting it.
Clearing all the memory (reset)
1 Press the ON/STAND-BY button to enter the power stand-by mode.
2 Whilst pressing down the button and the X-BASS/DEMO button, press the ON/
STAND-BY button until "CLEAR AL" appears.
Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD programme.
Before transporting the unit
1 Press the ON/STAND-BY button to turn the power on.
2 Press the CD/VIDEO CD button.
3 Press the OPEN/CLOSE button to open the disc tray.
Remove all discs from the unit.
4 Press the OPEN/CLOSE button to close the disc tray.
Make sure that "NO DISC" is displayed.
5 Pressthe ON/STAND-BY button to enter thestand-by mode, and then unplug
the AC power lead from the wall socket.

– 9 –
CD-BK310V
1 Top Cabinet 1. Screw ....................... (A1) x4 9-1
2 Side Panel 1. Screw ....................... (B1) x8 9-1
(Left/Right)
3 CD Player Unit/ 1. Turn on the power supply,... 9-2
CD Tray Cover open the disc tray, take out
the CD tray cover, and close.
(Note 1)
2. Screw .......................(C1) x1
3. Hook.........................(C2) x3
4. Hook.........................(C3) x2
5. Socket ......................(C4) x4
4 Rear Panel with 1. Screw .....................(D1) x10 9-2
Fan Motor 2. Socket ......................(D2) x1
5 Main PWB 1. Screw ....................... (E1) x1 9-2
2. Flat Cable ................ (E2) x1 10-2
3. Socket ...................... (E3) x5
10-2,10-3
6 Amp. PWB 1. Screw ....................... (F1) x5 10-3
2. Socket ...................... (F2) x2
3. PWB Holder ............. (F3) x2
4. Flat Wire................... (F4) x1
7 Front Panel 1. Screw .......................(G1) x1 10-3
8 Display PWB 1. Knob.........................(H1) x1 10-4
2. Screw ..................... (H2)
x12
3. Flat Cable ................ (H3) x1
9 Tape Mechanism 1. Open the cassette holder. 10-4
2. Screw ........................(J1) x5
10
Headphones PWB
1. Screw ....................... (K1) x1 10-4
11
Mic PWB
1. Screw ....................... (L1) x2 10-4
12 Turntable 1. Hook........................ (M1) x2 10-5
2. Cover ...................... (M2) x1
13 Disc Tray 1.
Turn fully the lock lever in the.
9-3
arrow direction
.
2.
While holding the lock lever, rotate
10-1
the cam gear until the cam gear
rib engages with the clamp lever.
3.
Push the slide chassis backward to
10-6
engage the claw with the groove
and remove it in the direction
of the arrow. .................
(N1) x6
14 Video CD PWB 1. Screw ....................... (P1) x1 11-1
(Note 2) 2. Hook......................... (P2) x2
3. Socket ...................... (P3) x4
15 CD Mechanism 1. Hook.........................(Q1) x2 11-2
2. Hook.........................(Q2) x3
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 wireholderswhere theyneedto
beremovedwhendisassemblingtheunit.Afterservicing
theunit,be suretorearrange the leadswherethey were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 9-2
Figure9-3
CD-BK310V
STEP REMOVAL PROCEDURE FIGURE
Figure 9-1
CD-BK310V
Note 1: How to open the changer manually. (Fig. 9-3)
1. In this state, turn fully the lock lever in the arrow direction through
the hole on the loading chassis bottom.
2.
While holding the lock lever, rotate the cam gear anticlockwise until the
cam gear rib engages with the clamp lever.
(Fig. 10-1)
3. After that, push forward the slide Chassis.
Note 2:
1. After removing the connector for the optical pickup from the
connector,wraptheconductivealuminiumfoilaroundthefrontend
of the connector so as to protect the optical pickup from electro-
static damage.
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2. When fining back the cam gear assembly, let it lock by front
movement.
Lock Lever
CD Player Unit
(Bottom View)
(B1) x 4
ø3 x 10mm (B1) x 2
ø3 x 10mm
Rear
Panel
(B1) x 2
ø3 x 10mm
Side Panel
(Right)
Side Panel
(Left)
(A1) x 2
ø3 x 12mm
(A1) x 2
ø3 x 12mm Top Cabinet
(E1) x 1
ø3 x 10mm
(C3) x 1
(D1) x 2
ø3 x 10mm
CD Player
Unit
CD Tray Cover
Pull
(C3) x 1
(C4) x 4
(C2) x 3
1
1
2
Video
CD PWB
(C1) x 1
ø3 x 10mm
(D1) x 7
ø3 x 10mm
Amp.
PWB
(D2) x 1
Rear
Panel
Main PWB
Transformer PWB
Lug Wire
(D1) x 1
ø3 x 10mm Front Panel

CD-BK310V
– 10 –
Figure 10-1
Figure 10-2
Figure 10-3
Figure 10-4
Figure 10-5
Figure 10-6
Clamp Lever
CD Player Unit
(Top View)
Cam Gear Rib
Turntable
Slide
Chassis
(M2) x 1
CD Player Unit
(M1) x 2
1
3
2
(N1) x 3
(N1) x 3
Main PWB
Main PWB
Amp.
PWB
Transformer
PWB
(E2) x 1
Power PWB
(E3) x 1
(E3) x 1
(E3) x 1
(E3) x 1
Mic PWB
Front Panel
Amp.
PWB
(F1) x 2
ø3 x 6mm
(F1) x 2
ø3 x 6mm
(F2) x 2
(F3) x 1
(F1) x 1
ø3 x 6mm (G1) x 1
ø3 x 10mm
Push (F3) x 1
Push
Headphones
PWB
(F4) x 1
Front
Panel
(E3) x 1
Tape
Mechanism
Push
Push
(H3) x 1
(H2) x 12
ø3 x 10mm
(J1) x 5
ø3 x 10mm
(H1) x 1
Display PWB
Headphones
PWB
Open
Front Panel
Cassette
Holder
Tape
Mechanism
(K1) x 1
ø3 x 10mm
Mic PWB
Lug Wire
(L1) x 2
ø3 x 10mm

– 11 –
CD-BK310V
1 Side Panel/ 1. Screw ..................... (A1) x4 11-3
Front Panel 2. Hook....................... (A2) x3
3. Net.......................... (A3) x1
4. Caching Holder ...... (A4) x4
5. Screw ..................... (A5) x4
2 Subwoofer 1. Screw ..................... (B1) x4 11-4
3 Woofer 1. Screw ..................... (C1) x4 11-4
4 Tweeter 1. Screw ..................... (D1) x2 11-4
STEP REMOVAL PROCEDURE FIGURE
Figure 11-3
Figure 11-1 Figure 11-2
CP-BK310
Figure 11-4
(P3) x 2
(P2) x 2
(P3) x 2
Video CD
PWB Slide
Chassis
(P1) x 1
ø3 x 8mm
(Q2) x 3
(Q1) x 1 (Q1) x 1
CD
Mechanism
CD
Mechanism
Chassis
Slide
Chassis
(A1) x 4
ø4 x 20mm
(A5) x 2
ø4 x 20mm
(A4) x 2
(A4) x 2
Fromt Panel
Side Panel
(A3) x 1
(A5) x 2
ø4 x 20mm
(A2) x 3
(C1) x 4
ø4 x 16mm
(B1) x 4
ø4 x 16mm
(D1) x 2
ø3 x 10mm
Tweeter
Woofer
Subwoofer

CD-BK310V
– 12 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 7 and 9 of the disassembly method to
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 12-1)
1. When you remove the screws (A1) x 2 pcs., the recording/
playback head and three-dimensional head of the erasing
head can be removed.
How to remove the playback head (TAPE 1)
(See Fig. 12-2)
1. When you remove the screws (B1) x 2 pcs., the playback
head.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 12-3)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (C1) x 1 pc., in the
direction of the arrow <B>.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
How to remove the belt (TAPE 2) (See Fig. 12-4)
1. Remove the main belt (D1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (D2) x 1 pc.
How to remove the belt (TAPE 1) (See Fig. 12-4)
1. Remove the main belt (E1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (E2) x 1 pc.
How to remove the motor (See Fig. 12-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Figure 12-1
Figure 12-2
Figure 12-3
Figure 12-4Figure 12-5
(A1) x 2
Ø2 x 6mm
TAPE 2
Record/Playback
Head
Erase Head
Clutch Ass'y
(B1) x 1
Ø2 x 9mm (B1) x 1
Ø2 x 5mm
TAPE 1
Playback
Head
Clutch Ass'y
Pinch Roller
(C1) x 1 <A>
Pull
<B>
Pull
Pinch
Roller
Pawl
TAPE 2 TAPE 1
Main Belt
(E1) x 1
TAPE 2
Main Belt
(D1) x 1
TAPE 1
FF/REW
Belt
(D2) x 1
FF/REW
Belt
(E2) x 1
Tape
Motor
Tape
Motor
Main Belt
(D1) x 1
Main Belt
(E1) x 1
FF/REW
Roller
FF/REW
Roller
Flywheel
Ass'y
Flywheel
Ass'y
(F1) x 2
Ø2.6 x 5mm
Tape
Motor
Clutch Ass'y

– 13 –
CD-BK310V
(A1) x 2
(A1) x 1
CD Loading Motor
CD Loading
Motor PWB
Slide
Chassis
(A1) x 2
Pulley
Drive Belt
(A2) x 1
CD Loading
Motor
How to remove the pickup (See Fig. 13-2)
1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2) x 1 pc.
2.Removethe screws (B3) x2pcs., to removetheshaft (B4).
3. Remove the pickup.
Note
After removing the connector for the optical pickup from the
connectorwraptheconductivealuminiumfoilaroundthefront
end of connector so as to protect the optical pickup from
electrostatic damage.
Figure 13-2
CD MECHANISM SECTION
Perform steps 1, 2, 3, 12, 13, 14 and 15 of the disassembly
method to remove the CD mechanism.
How to remove the CD loading motor
(See Fig. 13-1)
1. Bend the hooks (A1) x 5 pcs., to remove the CD loading
motor.
2. Remove the drive belt (A2) x 1pc.
Figure 13-1
ADJUSTMENT
MECHANISM SECTION
•Driving Force Check
Torque Meter Specified Value
Play: TW-2111 Tape 1: Over 80 g
Tape 2: Over 80 g
•Torque Check
Torque Meter
Tape 2
Play: TW-2111 30 to 80 g.cm 30 to 80 g.cm
Fast forward: TW-2231 — 70 to 180 g.cm
Rewind: TW-2231 — 70 to 180 g.cm
Specified Value
Tape 1
Specified
Value
Adjusting
Point Instrument
Connection
Test Tape
Normal MTT-111 Variable 3,000 ±30 Hz Speaker
speed Resistor in terminal
motor. (Load
resistance:
6 ohms)
•Tape Speed
Figure 13-3
(B3) x 2
ø2.6 x 6mm
Shaft
(B4) x 1
Stop Washer
(B1) x 1
Gear
(B2) x 1
CD Mechanism
Pickup
TAPE MECHANISM
Tape
Motor
Variable Resistor in motor

CD-BK310V
– 14 –
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
CD SECTION
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
AM IF 450 kHz 1,602 kHz T351 *1
AM Band — 531 kHz (fL): T306 *2
Coverage 1.1 ±0.1 V
AM Tracking 990 kHz 990 kHz (fL): T303 *1
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal
•FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
FM Band — 87.50 MHz T301(fL): *1
Coverage 1.3 V ±50 mV
FM RF 98.00 MHz 98.00 MHz L312 *2
(10-30 dB)
Test Stage Instrument
Connection
Frequency Frequency
Display Setting/
Adjusting
Point
Figure 14-1 ADJUSTMENT POINTS
Figure 14-2
Items adjusted automatically
(1)Offsetadjustment (The offset voltagebetweenthe head
amplifier output and the VREF reference voltage is
compensated inside the IC.)
* Focus offset adjustment
* Tracking offset adjustment
(2) Tracking balance adjustment (waveform drawing
Fig.14-2 EFBL)
(3)Gainadjustment(Thegainiscompensatedinsidethe IC
sothatthe loopgainat the gaincrossoverfrequency will
be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
•Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacingthepickup. Therefore,differentPWBsandpickups
can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.
IC301
AM IF
FM IF FM RF
T303
T306
T302 L312
AM
TRACKING fL
AM BAND
COVERAGE fL
T301
T351
FM BAND
COVERAGE fL
MAIN PWB
CNP301
AM LOOP
ANTENNA
SO302
FM ANTENNA
TERMINAL
TP302
R357
R316
TP301
T
T
EFBL
FDO
TE
Stopped
CH1=500 mV
DC 10:1 CH2=200 mV
DC 10:1 CH3=1 V
DC 10:1 500 ms/div
(500 ms/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V Main : 100 K
Zoom : 2 k Mode : SINGLE
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH2
v/DIV
200 mV
1999/04/05 20:26:47

– 15 –
CD-BK310V
TEST MODE
•Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> + <POWER> TEST:CD operation test
Function:-CD test mode.
-Enter test mode.
C D T E S T
<< >>, << >> buttons make pick's slide possible.
Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
be appoint directly
<<PLAY>> key input. <<MEMORY>> key input.
<< 1>> key: Track 4
<< 2>> key: Track 9
<< 3>> key: Track 15
<<STOP>> key input.
STOP
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
Tracking ON play from
that specific point.
<<STOP>> key input.
STOP
IL isn't done
VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF
Sliding the PICKUP with
<< >>, << >> button
must only be in STOP mode.
<<MEMORY>>
key input
Adjustment result
automatically will
display as below
for each 2 sec :
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBA_XXXX"
d) "TGA_XXXX"
f) "FGA_XXXX"
g) "RFL_XXXX"
explanation:
a) Focus off set ="FOF_XXXX"
b) Tracking off set ="TOF_XXXX"
c) Tracking balance ="TBA_XXXX"
d) Tracking Gain ="TGA_XXXX"
f) Focus Gain ="FGA_XXXX"
g) RF level shift ="RFL_XXXX"
Adjustmentresultautomaticallywill
display as below for each 2 sec :
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBA_XXXX"
d) "TGA_XXXX"
f) "FGA_XXXX"
g) "RFL_XXXX"
<<MEMORY>> key input.

CD-BK310V
– 16 –
Standard Specification of Stereo System Error Message Display Contents
Error Contents Display Notes
Output while Device Protection Operation 'PROTECT' 00: While in Protect Circuit Operate
01: Over Current Detection
02: DC Detection
03:
TAPE Mechanism Error 'ER-TA**' 00: Tape Mechanism Error
01: Initial Error
02:
03:
CD/VCD Pickup Mechanism Error 'ER-CD**' 00: Pickup Mechanism Error
01: PU-IN SW Detection NG
02:
03:
CD Changer Mechanism Error 'ER-CD**' 10: Changer Error
11: Initial Error
12:
13:
Tray Error 'ER-CD**' 20: Tray Error
21:
22:
23:
Micon Communication Error 'ER-CD**' 30: System-VCD
31: System-CD Servo
Focus Not Match 'NO DISC'
IL Time Over 'NOT READ'
TUN PLL Unlock 'ER-TU**' 00: TUN Error
01: PLL Unlock
02:
03:
Track 2 Video output terminal Chroma Peak Level
105 ±15 IRE
VIDEO CD SECTION
TEST DISC Model No.TVD-581A (NTSC/PAL)
• Checking of video output signal
Checking of color bar
Disc Adjusting Point Instrument
Connection
Figure 16-1 CHECKING OF VIDEO OUTPUT SIGNAL Figure 16-2
UNIT
Video Output Terminal
Video Input Terminal
TV
Color bar signal
waveform
100 100 88.5 75 70
75
41.5
33.5
50
-13.5 -25 -25
100 IRE
(0.714 V)
(1 V)
(0.286 V)
140 IRE
Horizontal
sync signal
40 IRE
40 IRE
Color Burst
20
-20
-40
Blue
Red
Green
Magenta
Cyan
Yellow
Gray
(59.94 Hz)
IH

– 17 –
CD-BK310V
Figure 17-1
Set the phase of color Phase check
Track 2 VIDEO OUT burst signal (B) to ±10°
180°-360°line.
Disc Checking Setting Checking
Item
Checking of vector scope waveform
( Check that the setting is within the illustrated range.)
Figure 17-2
Figure 17-3
Figure 17-4
Track 3 VIDEO OUT 150 line. Output level
±10 IRE
Disc Checking Setting Checking
Item
Checking the black-and-white level
Figure 17-5
90 80 70 60
50
40
30
20
10
360
350
340
330
320
310
300
290
280
270
260
250
240
230
220
210
200
190
180
170
160
150
140
130
120 110 100
103.4
167.1
240.8 283.4
347.1
60.8
-1
123 +180
+0
33
MG
R
BL
CY
G
YE
Vector scope waveform of color bar signal
TV monitor
Blue
Red
Green
Magenta
Cyan
Yellow
Gray
IRE
100
80
60
40
20
-20
-40 100%
12.5%
0%
NTSC
Waveform on 140 LINE
(This burst level
is 40 IRE)
140 IRE
TV monitor
TV monitor
Blue
Red
Green
Magenta
Cyan
Yellow
Gray

CD-BK310V
– 18 –
•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 POSITION
SW715 X-BASS/MEMO ON—OFF
SW716 EQUALIZER ON—OFF
SW717 REVERSE MODE ON—OFF
SW722 CD ON—OFF
SW723 TAPE ON—OFF
SW724 TUNING DOWN ON—OFF
SW725 MEMORY/SET ON—OFF
SW726 PRESET DOWN ON—OFF
SW727 PRESET UP ON—OFF
SW728 PLAY ON—OFF
SW729 STOP ON—OFF
SW730 REVERSE PLAY ON—OFF
SW731 REC/PAUSE ON—OFF
SW732 TUNING UP ON—OFF
SW733 VIDEO/AUX ON—OFF
SW734 TUNER ON—OFF
SW801 VOLTAGE SELECTOR 110V—127V
220—230-240V
REF. NO DESCRIPTION
SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICK UP IN ON—OFF
SW601 SPAN SELECTOR 9kHz/50kHz
SW701 ON/STAND-BY ON—OFF
SW702 CLOCK ON—OFF
SW703 TIMER ON—OFF
SW704 KARAOKE MODE ON—OFF
SW705 PLAYBACK CONTROL ON—OFF
SW706 ON SCREEN DISPLAY ON—OFF
SW707 DIGEST ON—OFF
SW709 DISC 1 ON—OFF
SW710 DISC 2 ON—OFF
SW711 DISC 3 ON—OFF
SW712 DISC SKIP ON—OFF
SW713 OPEN/CLOSE ON—OFF
SW714 DIMMER ON—OFF
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
2SA1015 GR
2SC1845 F
2SC3203Y
AN78L05
KIA7805 AP
KIA7810 AP
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTA1274 Y
KTA1504 GR
KTC3199 GR
KTC3203 Y
KTC3265 Y
KTC3194 Y
KTC3875 GR
KRC102 M
KRC102 S
KRC104 M
KRC104 S
KRC107 M
4204UYT7
4204UGT7
4204SRT7
FRONT
VIEW
KTC2026
BCE
FRONT
VIEW
TYPES OF TRANSISTOR AND LED

– 19 –
CD-BK310V
Figure 19 BLOCK DIAGRAM (1/3)
TO DISPLAY
SECTION TO MAIN
SECTION
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
6
5
4
3
2
1
40
30
31
32
41
47
46
53
76
75
65 66 67 68 69 70 71 72 52 51 73
5
18
36
30 23 11 9 1
2
3
4
7
8
22
21
20
19
18
17
44
49
50
7
14
15
16
3
19
2324252633595735545556
7
8
9
GND
CLAMP SW
CD RES
CLK
DI
DO
CE
DRF
WRG
+10 V
+5 V
CD-GND
L-CH
A_GND
R-CH
CNP12
CNP11
CNP3
M3
CD LOADING
MOTOR
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SW4
PICKUP IN
SW3
DISC No.
SW2
CLAMP
SW1
POEN/CLOSE
~
CONT2
CONT3
CONT4
CONT7
CONT6
CE
CL
DI
DO
INT
WRQ
RES
DEF
XOUT
XIN
RCHO
LCHO
RVSS
LVSS
VDD
VDD
LVDD
RVDD
XVDD
HFL
RFEV
FE
TE
TDO
FDO
SPDO
SLDO
CONT5
VVDD
ADAVDD
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
CNP4
M
M
+
+
-
M-
+
-
Q10
Q9
Q2
A
B
IC2
LC78636E
SERVO/SIGNAL
CONTROL
Q4
Q3
CONSTANT
VOLTAGE +3.3 V
+3.3 V
XL2
RFEV
LDD
PD
TIN2
TIN1
FIN2
FIN1
FE-
TE-
TE
HFL
FE
IC1
LA9235M
SERVO AMP.
TRACKING COIL
FOCUS COIL
PICKUP UNIT
+5 V
+5 V
LASER
DRIVER
+3.3 V
-5 V
39
38
42
41
25
17
2
118 40 24 23 28
4
5
6
7
15
16
26
27
8142122 ~
9188 ~
45 44 43 41 3247 ~~
8782
79
68
66
65
64
1
2
12
~
~
13
15
21
17
22
24
~
~~ ~
62
55
80
6
99
93
85
81
8
98
92
~
86
80 89 79 37 33 23 90 78 73 66 60 59
53
32
16
5
91
77
75
72
63
100
1 25 26 31 41 43 51 56 57 62
50 30
100
~
4
12
~
16
19
~
26
22
~
6
10
~
2
5
~
34
31
~
39
36
~
1 40
35
21
20
13
81
51
31
1
959493
28
~
~
30
32
23
25
~
2935 ~
A
B
TO ICM3
17, 19, 21, 22PIN
ICM4
IX0408AW
EPROM
OE_
CE_
DSO_C ODD
No. ODD
No. EVEN
No. EVEN
No.
ARCLK
AJN
ARFS
ICM3
ES3889F
VCD COMPANION CHIP
ICM2
ES3880F
VCD PROCESSOR CHIP
LOE#
LROMCE#
LSC1#
AJN
ARCLK
ARFS
64
CNP1
ICM1
1625635T
DRAM
CAM. M+ SP-
SP+
SL+
SL-
TR-
TR+
FO-
FO+
CAM. M-
CAM. M+
CAM. M-
SPDO
SLDO
FD
TO
IC3
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
QM1
JK671
VIDEO OUT

CD-BK310V
– 20 –
Figure 20 BLOCK DIAGRAM (2/3)
Q704
Q705
Q708
TAPE
MECHANISM
ASS'Y
+B3
+B3
MOTOR
DRIVER
SOLENOID
DRIVER
VIDEO IN
AUX
R
LR
L
R
L
R
L
R
R
L
L
JK601
FM
+B +B4
CLK
+B4
AM IF
OSC BUFF
AM LOOP
ANTENNA
FM IF
FM
OSC
B.P.F
SO302
FM ANTENNA
TERMINAL
CNS11
–20dB
ATT
Q103-
Q106
–B2
+B4
KIA4558P
OPE AMP.
IC70
IX04
1
IC703
IC702
Q121
Q122
Q603
Q604 Q605
Q606
10.7MHz
450kHz
FM
ANTENNA
REC/PLAY
CLK
CE
DI
SYSTEM
MUTE
DO
DI
CE
MO/ST
CONSTANT
VOLTAGE
+B4
FM/AM
IC302
LC72131
PLL(TUNER)
FM/AM
OUT
L
R
BIAS
T1/T2
MUTING
P.B.
REC
AC BIAS
TAPE
TUNER
CD
MIC
PB
FROM VIDEO
CD SECTION
CNP11
ERASE
HEAD
SWITCHING
SWITCHING
SWITCHING
BIAS
Q110
Q111
Q109
Q126
SWITCHING
Q124
L103
OSC
BIAS Q128
L104
Q107
Q108
REC. P.B. HEAD
TAPE 2
P.B. HEAD
TAPE 1
L-CH
R-CH
L-CH
R-CH
IC601
LC75341
AUDIO PROCESSOR
H/N
P.B
+B4
R
L
REC
R
L
L NF
R NF
ALC
REC
T1/T2
T1/T2
NOR/
HIGH
REF
R REC
L REC
POP REDUCE
R NF
L NF
SWITCHING L(T2)
R(T2)
R(T1)
L(T1)
IC101
PLAYBACK AND
RECORD/
PLAYBACK AMP.
R
L
FM/AMMPXIN
STEREO
AM RF IN
AM OSC IN
FM
Q360
VT
OSC
X352
4.5MHZ
AM BAND
COVERAGE
AM TRACKING
T303 T306
Q302
X351
456kHz
MO/ST
VCOFM
DET
FM+BGNDAM IF
CF351
IC303
LA1832S
FM IFDET.
FM MPX./
AM IF MPX.
AM MIX
CF352
T351
FM
RF
OSC
FM
L312 T301
CF303
T302
IC301
TA7358AP
FM FRONT END
BF301
7
8
41
3
1
CNP301
JK1
MIC
1
2
2
1
24
2
23
3
22
6
9
16
14
12
15 19
10
17
18
8
7
20
5
21
13
4
34578
9
6
2
1
12 45981713
14
15
1216182123
20 1 22 15 16 11
17
2110
16
10
15
11
14
12
13
7
3
79
9
7 18 8 17 3
1
23
2
24
21
4
456
L
R
ICK1
M65856SP
MIC AMP.
ICK2
KIA4558P
OPE AMP.
LATCH
MIC IN
VRK1
MIC
VOLUME
CLK
DATA
LOUT
ROUT
L IN
R IN
VCC
+B5
+B4
98
7
5
6
2
3
1
12
13
23
QK1
32
31
35
36
42
41
40
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