Sharp CDBP-1500-W, CDBP-160-W, CDBP-1700-W, CDBP-180-W Service manual

SERVICE MANUAL

Illustration: CD-BP1500W

• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.

CD-BP160W/180W/1500W/1700W

No. S4023CDBP1500

CD-BP160W

CD-BP160W Mini Component System consisting of
CD-BP160W (main unit) and CP-BP160 (speaker system).

CD-BP180W

CD-BP180W Mini Component System consisting of
CD-BP180W (main unit), CP-BP180 (front speaker ) and
GBOXS0041AWM1 (surround speaker).

CD-BP1500W

CD-BP1500W Mini Component System consisting of
CD-BP1500W (main unit) and CP-BP1500 (speaker system).

CD-BP1700W

CD-BP1700W Mini Component System consisting of
CD-BP1700W (main unit), CP-BP1700 (front speaker ) and
GBOXS0041AWM1 (surround speaker).

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2

VOLTAGE SELECTION..................................................................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................. 3

NAMES OF PARTS ........................................................................................................................................................... 4

OPERATION MANUAL ...................................................................................................................................................... 6

DISASSEMBLY.................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 11

ADJUSTMENT ................................................................................................................................................................. 12

BLOCK DIAGRAM ........................................................................................................................................................... 15

SCHEMATIC DIAGRAM ...................................................................................................................................................18

VOLTAGE ........................................................................................................................................................................ 27

WIRING SIDE OF P.W.BOARD........................................................................................................................................28

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 34

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 35

TROUBLESHOOTING ..................................................................................................................................................... 36

FUNCTION TABLE OF IC................................................................................................................................................ 40

FL DISPLAY......................................................................................................................................................................46

REPLACEMENT PARTS LIST/EXPLODED VIEW

SHARP CORPORATION

– 1 –

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

CD-BP160W/180W/1500W/1700W

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) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping.
(3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens at any time.
(5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in

hazardous radiation exposure.

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 proce­dures 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.

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.

QACCB0008AW00

92LCORDZ1652A

QACCE0011AW00

QACCL0002AW00/QACCZ0008AW00

Figure 2 AC POWER SUPPLY CORD AND PLUG ADAPTOR

92LCORD577B

QPLGA0003AWZZ QPLGA0004AWZZ

– 2 –

CD-BP160W/180W/1500W/1700W

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

SPECIFICATIONS

CD-BP160W/180W/1500W/1700W

● General

Power source: AC 110/127/220/230-240 V,

50/60 Hz

Power consumption: 100 W
Dimensions: Width; 270 mm (10-5/8")

Height; 330 mm (13")
Depth; 355 mm (14")

Weight: 6.7 kg (14.7 lbs.)

● Amplifier section

Output power:

Output terminals:
(CD-BP160W/1500W)

Output terminals:
(CD-BP180W/1700W)

Input terminals: Video/Auxiliary (audio signal);

MPO; 160 W (80 W + 80 W)
(10 % T.H.D.)

RMS; 100 W (50 W + 50 W)
(10 % T.H.D.)
RMS; 74 W (37 W + 37 W)
(0.9 % T.H.D.)

Speakers; 6 ohms
Headphones; 16-50 ohms

(recommended; 32 ohms)
Front speakers; 8 ohms
Surround speakers; 16 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)

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
Dynamic range: 90 dB (1 kHz)

● Tuner section

Frequency range: FM; 88-108 MHz

AM; 531-1,602 kHz

● Cassette deck section

Frequency response: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)

50 dB (TAPE 2,

Wow and flutter: 0.3 % (WRMS)

recording/playback)

CP-BP160/1500

Type: 3-way type [10 cm (4")woofer × 2

and 5 cm (2") tweeter]

Maximum input power: 100 W
Rated input power: 50 W
Impedance: 6 ohms
Dimensions:
(CP-BP160)

Weight:
(CP-BP160)
Dimensions:
(CP-BP1500)

Weight:
(CP-BP1500)

CP-BP180/1700

Type: 3-way type [10 cm (4") woofer ×
Maximum input power: 80 W

Rated input power: 40 W
Impedance: 8 ohms
Dimensions:
(CP-BP180)

Weight:

(CP-BP180)
Dimensions:
(CP-BP1700)

Weight:
(CP-BP1700)

GBOXS0041AWM1

Type: 10 cm (4") full-range speaker

Maximum input power: 30 W

Rated input power: 15 W

Impedance: 16 ohms

Dimensions: Width; 170 mm (6-3/4")

Weight: 0.5 kg (1.0 lbs.)/each

Specifications for this model are subject to change without
prior notice.

Width; 220 mm (8-11/16")
Height; 330 mm (13")
Depth; 227 mm (8-15/16")

3.0 kg (6.6 lbs.)/each
Width; 231.5 mm (9-1/8")

Height; 330 mm (13")
Depth; 210 mm (8-1/4")

3.1 kg (6.8 lbs.)/each

and 5 cm (2") tweeter]

Width; 231.5 mm (9-1/8")
Height; 330 mm (13")
Depth; 210 mm (8-1/4")

3.1 kg (6.8 lbs.)/each

Width; 240 mm (9-7/16")
Height; 330 mm (13")
Depth; 234 mm (9-9/16")

3.2 kg (7.0 lbs.)/each

Height; 170 mm (6-3/4")
Depth; 88 mm (3-1/2")

2

– 3 –

CD-BP160W/180W/1500W/1700W

CD-BP160W/180W/1500W/1700W

■ Front panel

11.

(CD) Disc Tray

NAMES OF PARTS

12.

Extra Bass Indicator

13.

FM Stereo Mode Indicator

14.

FM Stereo Indicator

15.

(CD) Repeat Indicator

16.

(CD) Pause Indicator

17.

(CD) Play Indicator

18.

(CD) Disc Number Indicators

19.

(TAPE 2) Record Indicator

10.

(CD/TUNER) Memory Indicator

11.

(TAPE) Reverse Mode Indicator

12.

(TAPE 2) Direction Indicator

13.

(TAPE 1) Play Indicator

3

(TAPE 2) Direction Indicator

14.

Sleep Indicator

15.

Timer Record Indicator

16.

Timer Play Indicator

17.

Spectrum Analyzer/Volume Level Indicator

18.

(CD) Track Down/Review Button

3

(TUNER) Preset Down Button

3

(TAPE 2) Rewind Button

19.

(CD) Track Up/Cue Button

3

(TUNER) Preset Up Button

3

(TAPE 2) Fast Forward Button

20.

Timer Set Indicator

21.

On/Stand-by Button

22.

Clock Button

23.

Timer/Sleep Button

24.

Function Selector Buttons

25.

Dimmer Button

26.

Volume Up/Down Buttons

27.

Equalizer Mode Selector Button

28.

Extra Bass/Demo Mode Button

29.

(CD) Open/Close Button

30.

Headphone Socket

31.

Tuning and Time Up/Down Buttons

32.

Memory/Set Button

33.

(TAPE) Reverse Play Button

34.

(CD/TAPE) Stop Button

35.

(TAPE 2) Reverse Mode Button

36.

(CD) Play/Repeat Button

3

(TAPE 1) Play Button

3

(TAPE 2) Forward Play Button

37.

(TAPE 2) Record Pause Button

38.

(CD) Disc Skip Button

20
21

22
23
24

3

30

2

5

4

17

31 32

6

39

18

33

1

14

37

8

15

17

16

25

26

27

28
29

38

9

10

11

7

1312

17

19

35 36

34

40

39.

(TAPE 1) Cassette Compartment

40.

(TAPE 2) Cassette Compartment

– 4 –

■ Rear panel

1

2

3

4

11.

AC Voltage Selector

12.

AC Power Input Socket

13.

FM 75 Ohms Aerial Terminal

14.

FM Aerial Earth Terminal

15.

AM Loop Aerial Input Socket

16.

Span Selector Switch

17.

Video/Auxiliary (Audio Signal) Input Sockets

18.

Front Speaker Terminals

19.

Surround Speaker Terminals
(For 180W/1700W Only)

CP-BP160/1700

11.

Tweeter

12.

Bass Reflex Duct

13.

Woofers

14.

Speaker Wire

1
2

1

2

CD-BP160W/180W/1500W/1700W

3
4
5

6
7

8
9

3

CP-BP180/1500

11.

Tweeter

12.

Bass Reflex Duct

13.

Woofers

14.

Speaker Wire

GBOXS0041AWM1

11.

Full-Range Speaker

12.

Speaker Wire

4

1

2

– 5 –

CD-BP160W/180W/1500W/1700W

CD-BP160W/180W/1500W/1700W

■ Remote control

11.

Remote Control Transmitter LED

12.

(CD) Disc Skip Button

13.

(CD) Clear Button

14.

(CD) Memory Button

15.

(CD) Random Button

16.

(TAPE 2) Record Pause Button

17.

(CD) Track Down/Review Button

3

(TUNER) Preset Down Button

3

(TAPE 2) Fast Wind Button

18.

(CD) Pause Button

19.

(CD) Track Up/Cue Button

3

(TUNER) Preset Up Button

3

(TAPE 2) Fast Wind Button

10.

Equalizer Mode Selector Button

11.

(TAPE 2) Reverse Play Button

12.

(CD/TAPE) Stop Button

13.

(CD) Play/Repeat Button

3

(TAPE 1) Play Button

3

(TAPE 2) Forward Play Button

14.

Function Selector Buttons

15.

On/Stand-by Button

16.

Extra Bass Button

17.

Volume Up/Down Buttons

14
15

16

1

345

67

89

10111213

2

17

RESETTING THE MICROCOMPUTER

X-BASS/
DEMO

ON/
STAND-BY

0.2 m - 6 m
(8" - 20')

15

15

OPERATION MANUAL

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 X-BASS/DEMO
button, hold down the ON/STAND-BY button for at least 1
second.

● "CLEAR AL" will appear.

Caution:

● The operation explained above will erase all data stored in
memory including clock and timer settings, and tuner and CD
presets.

■

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 in­terfere with operation. Change the lighting or the direction of
the unit.

● Keep the remote control away from moisture, excessive heat,
shock, and vibrations.

– 6 –

CD-BP160W/180W/1500W/1700W

SETTING THE CLOCK

In this example, the clock is set for the 24-hour (0:00) system.

ON/

STAND-BY

CLOCK

MEMORY/SET

TUNING/

TIME

( )

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" → T he 24-hour display wil l appear.

(0:00 - 23:59)

"AM 0:00" → The 12-hour display will appear.

(AM 0:00 - PM 11:59)

"AM 12:00" → The 12-hour display will appear.

(AM 12:00 - PM 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

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" second.

(Seconds are not displayed.)

And then the clock display will disappear after 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 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".

②

Perform steps 1 - 9 above.

(Main unit operation)

AM 12:00AM 0:000:00

2

3

4

7

6

5

8

9

(Continued)

■

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 X-BASS/DEMO

button, hold down the ON/STAND-BY button for at least 1

second.

● "CLEAR AL" will appear.

Caution:

● The operation explained above will erase all data stored in

memory including clock and timer settings, and tuner and CD

presets.

■

Connecting the AC power lead

Check the setting of the AC voltage selector located on the rear

panel before plugging the unit into an AC socket. If necessary,

adjust the selector to correspond to the AC power voltage used

in your area.

Selector adjustment:

Turn the selector with a screwdriver until the appropriate voltage

number appears in the window (110V, 127V, 220V or 230V -

240V AC).

Notes:

● Plug the AC power lead into a convenient AC socket, after

any connections.

● Unplug the AC power lead from the AC socket if the unit will

not be in used for a prolonged period of time.

● Never use a power lead other than the one supplied. Use of

a power lead other than the one supplied may cause an electric

shock or fire.

● AC Plug Adaptor

In areas (or countries) where an AC socket as shown in illustra-

tion ② is used, connect the unit using the AC plug adaptor sup-

plied with the unit, as illustrated. The AC plug adaptor is not

included in areas where the AC wall socket and AC power plug

can be directly connected (see illustration ①).

220V

1

2

Note for users in Australia and New Zealand:

An AC plug adaptor is not supplied if the lead has an Australian

Standard plug.

To an AC socket

– 7 –

(E1)x3
ø3x12mm

(C3)x1

(C1)x1
ø3x10mm

(D1)x6
ø3x10mm

CD Player
Unit

CD Tray Cover

Rear
Panel

Pull

(C3) x1

(C4)x2

(C2) x3

1

1

2

Main PWB

CD Servo PWB

Disc Tray

CD-BP160W/180W/1500W/1700W

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 off nylon bands or wire holders where they need to
be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.

4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.

CD-BP160W/180W/1500W/1700W

STEP REMOVAL

1 Top Cabinet 1. Screw ..................... (A1) x4 8-1

2 Side Panel 1. Screw ..................... (B1) x8 8-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 8-2

CD Tray Cover

2. Screw ..................... (C1) x1

3. Hook....................... (C2) x3

4. Hook....................... (C3) x2

5. Socket .................... (C4) x2

4 Rear Panel 1. Screw ..................... (D1) x6 8-2

5 Main PWB 1. Screw ..................... (E1) x5 8-2,9-2

2. Socket .................... (E2) x4 9-2

3. Flat Cable............... (E3) x1

4. Lug Wire................. (E4) x1

5. Flat Wire................. (E5) x1

6 Socket PWB 1. Screw..................... (F1) x1 9-2

7 Front Panel 1. Screw ..................... (G1) x2 9-2

8 Display PWB 1. Screw .....................

9 Tape Mechanism 1. Open the cassette holder. 9-3

10

Headphones PWB

11 Turntable 1. Hook....................... (L1) x2 9-4

12 Disc Tray 1.

13 CD Servo PWB 1. Screw ..................... (N1) x1 9-6

14 CD Mechanism 1. Hook ....................... (P1) x2 10-1

(Note 2) 2. Hook....................... (N2) x3

2. Socket .................... (F2) x1

2. Flat Cable............... (H2) x1

2. Screw...................... (J1) x6

1. Screw ..................... (K1) x1 9-3

2. Cover ..................... (L2) x1

2.

3.

3. Socket .................... (N3) x4

2. Hook....................... (P2) x3

Note 1:

How to open the changer manually. (Fig. 8-3)

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.

3. After that, push forward the CD slide holder.

PROCEDURE

open the disc tray, take out the
CD cover, and close. (Note 1)

(H1) x15

Turn fully the lock lever in the
arrow direction.
While holding the lock lever,rotate
the cam gear until the cam gear
rib engages with the clamp lever.
Push the slide holder backward to
engage the claw with the groove
and remove it in the direction

of the arrow. ..............

(M1) x6

FIGURE

9-3

8-3

9-1

9-5

(Fig. 9-1)

CD-BP160W/180W/1500W/1700W

Front Panel

Top Cabinet

(A1)x2
ø3x12mm

Side Panel
(Left)

(B1)x2
ø3x10mm

Side Panel
(Right)

(B1)x2
ø3x10mm

(B1)x4
ø3x12mm

(A1)x2
ø3x12mm

Rear
Panel

Figure 8-1

Figure 8-2

Lock Lever

Figure 8-3

Note 2:

1. After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of the connector to protect the optical pickup from
electrostatic 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.

– 8 –

CD-BP160W/180W/1500W/1700W

1

2

(M1) x3

(M1) x3

Disc Tray

CD Player Unit

(N3)x2

(N2)x3

(N3)x2

CD Servo

PWB

Disc Tray

(N1)x1
ø3x8mm

Record/
Playback
PWB

(E2)x1

Socket PWB

(F1)x1
ø3x10mm

(E2)x1

Tape
Mechanism

(E3)x1

(E4)x1

(E2)x2

Figure 9-1

(E1)x2
ø3x10mm

Clamp Lever

Cam Gear Rib

Front Panel

(E5)x1

Headphones
PWB

Main PWB

(L2) x1

Turntable

Disc Tray

(L1) x2

CD Player Unit

Figure 9-4

(H1)x15
ø3x10mm

Tape
Mechanism

(J1)x6
ø3x10mm

(K1)x1
ø3x10mm

(F2)x1

Figure 9-2

(H2)x1

Front Panel

Display PWB

(G1)x2
ø3x10mm

Figure 9-5

Open

Cassette
Holder(Lift/Right)

Headphones PWB

Figure 9-3

Figure 9-6

– 9 –

CD-BP160W/180W/1500W/1700W

CD
Mechanism

(P1)x1

(P2)x3

(P1)x1

Disc Tray

Figure 10-1

CP-BP1700/160

STEP REMOVAL PROCEDURE FIGURE

1 Woofer/ 1. Front Panel ............ (A1) x1 10-2

Sub Woofer 2. Screw..................... (A2) x8

2 Tweeter 1. Screw ..................... (B1) x2 10-2

Speaker Box

Woofer

(A2)x4

(A1)x1

ø4x12mm

(A2)x4
ø4x12mm

Sub Woofer

Driver should
be pried away
from Speaker
Box.

(B1)x2
ø3x10mm

Tweeter

Screw
Driver

CP-BP180/1500

STEP REMOVAL

1 Woofer/ 1. Front Panel ............ (A1) x1 10-3

Sub Woofer 2. Screw..................... (A2) x8

2 Tweeter 1. Screw ..................... (B1) x2 10-3

Woofer

(A1) x1

(A2)x4
ø4x12mm

(A2)x4
ø4x12mm

PROCEDURE

Sub Woofer

Driver should
be pried away
from Speaker
Box.

(B1)x2
ø3x10mm

Speaker Box

Screw
Driver

FIGURE

Tweeter

Figure 10-2

Figure 10-3

– 10 –

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE2

TAPE1
Main Belt
(D1)x1

TAPE2
Main Belt
(E1)x1

TAPE1
Main Belt
(E1)x1

FF/REW
Belt
(E2)x1

FF/REW

Belt

(D2)x1

Motor

Motor

Main Belt
(D1)x1

TAPE MECHANISM SECTION

Perform steps 1, 2, 3, 4, 5, 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. 11-1)

1. Carefully remove the record/playback head and erase head

screws (A1) x 2 pcs.

How to remove the playback head (Tape 1)
(See Fig. 11-2)

1. Carefully remove the playback head screws (B1) x 2 pcs.

CD-BP160W/180W/1500W/1700W

TAPE2

Record/Playback
Head

Erase Head

(A1)x2
Ø2 x 6mm

Figure 11-1

How to remove the pinch roller (Tape 1/2)
(See Fig. 11-3)

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 1) (See Fig. 11-4)

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 2) (See Fig. 11-4)

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. 11-5)

1. Remove the screws (F1) x 2 pcs., to remove the motor.

TAPE2

(B1)x2
Ø2 x 9mm

Pinch Roller
(C1)x1

TAPE1

Figure 11-2

Pull

<B>

Figure 11-3

Playback
Head

Pull

<A>

Pinch
Roller
Pawl

(F1) x2

Ø 2.6 x 5mm

Motor

Figure 11-4Figure 11-5

– 11 –

CD-BP160W/180W/1500W/1700W
CD MECHANISM SECTION

Perform steps 1, 2, 3, 11, 12, 13 and 14 of the disassembly
method to remove the CD mechanism.

How to remove the T/T Up/Down motor
(See Fig. 12-1)

1. Bend the hooks (A1) x 5 pcs., to remove the T/T Up/Down
motor.

2. Remove the drive belt (A2) x 1 pc.

How to remove the pickup (See Fig. 12-2)

1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).

2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).

3. Remove the pickup.

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.

Disc Tray

(B1) x2
ø2.6 x6mm

T/T Up/Down Motor

(A1)x2

Figure 12-1

Stop Washer
(B3) x1

(A1)x3

Pulley

Drive Belt
(A2) x1

Motor

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

Play: TW-2111 Tape 1: Over 80 g

• Torque Check

Torque Meter

Tape 1

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 2: Over 80 g

Specified Value

Tape 2

Pickup

Shaft
(B2) x1

Gear

CD Mechanism

(B4) x1

Figure 12-2

• Tape Speed

Test Tape

Normal MTT-111 Variable 3,000 ± Speaker
speed Resistor in 30 Hz terminal

Adjusting

Point

motor. (Load

Specified

Value

Instrument

Connection

resistance:
6 ohms)

TAPE MECHANISM

– 12 –

Motor

Variable Resistor in motor

Figure 12-3

TUNER SECTION

fL: Low-range frequency
fH: High-range frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage 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: TP302
*2. Input: Antenna, Output: TP301

Frequency

Display

Setting/

Adjusting

Parts

FM TERMINAL

SO302

Instrument

Connection

CNP301

AM LOOP

ANTENNA

CD-BP160W/180W/1500W/1700W

• FM RF

Signal generator: 400Hz, 22.5 kHz dev., FM modulated

Test Stage

Frequency

Frequency

Display

Serring/

Adjusting

Point

FM Band — 87.50 MHz T301(fL): *1
Coverage 3.4 V ± 0.1V

FM RF 98.00 MHz 98.00 MHz L312 *2

(10-30 dB)

*1. Input: Antenna, Output: TP301
*2. Input: Antenna, Output: Speaker terminal

MAIN PWB

Instrument

Connection

TP301

R382

FM BAND
COVERAGE fL

Figure 13-1 ADJUSTMENT POINTS

CD SECTION

• Adjustment

Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacing the pickup. Therefore, different PWBs and pickups
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.

Items adjusted automatically

(1) Offset adjustment (The offset voltage between the 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 13-2

EFBL)

(3) Gain adjustment (The gain is compensated inside the IC

so that the loop gain at the gain crossover frequency will
be 0dB.)

* Focus gain adjustment
* Tracking gain adjustment

T301

T351

AM IF

IC301

FM IF

T302

L312

FM RF

T303

AM BAND
COVERAGE fL

TP302

AM
TRACKING fL

T306

R357

1

CD ERROR CODE DESCRIPTION

Error State Code

0001 Cannot detect Pickup-in SW
0002 DSP access error

0101 Open/Close SW Low → High not functioning
0103 Open/Close SW High → Low not functioning

0201 Open/Close SW Low → High not functioning
0203 Open/Close SW High → Low not functioning

0302 Pickup-in SW is not detected
0306 During Disc 1 search, Open/Close SW or Clamp SW

0307 Clamp SW Low → High not functioning
0308 Clamp SW High → Low not functioning

[Servo System Error]

[Error during close operation]

[Error during open operation]

[Error during skip operation]

or Disc SW do not change to low.

T

T

1

3

Stopped

FDO

TE

CH1=500mV

DC 10:1

CH2=200mV

DC 10:1

CH3=1V

DC 10:1

1999/04/05 20:26:47

500ms/div

(500ms/div)

NORM:20kS/s

– 13 –

EFBL

2

Smoothing : ON CH1 : 0.000V
BW : FULL

CH2 : 0.000V
CH3 : 0.00V
CH4 : 0.00V

Figure 13-2

=Record Length=

Main : 100K
Zoom : 2k

CH2
v/DIV
200mV

=Trigger==Filter= =Offset=
Mode : SINGLE
Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us

CD-BP160W/180W/1500W/1700W

• TEST MODE

Setting of test mode
Any one test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> + <POWER> TEST: CD opertion test

Function:-CD test mode.

-Enter test mode.

C D T E S T

OPEN/CLOSE operation is using manual.

<< >>, << >> buttons make pick's slide possible.

IL isn't done

<<PLAY>> key input.

Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
be appoint directly

<< 1>> key: Track 4
<< 2>> key: Track 9
<< 3>> key: Track 15

<<STOP>> key input.

STOP

VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF

<<MEMORY>> key input.

Laser ON.

<<MEMORY>> key input.

Tracking OFF play at that
specific point.

<<MEMORY>> key input.

Tracking ON play at that
specific point.

<<STOP>> key input.

STOP

Sliding the PICKUP with
<< >>, << >> button
must only be in STOP mode.

To cancel : Power OFF

– 14 –

TO MAIN SECTION

(TO IC401)

TO DISPLAY SECTION

CD-BP160W/180W/1500W/1700W

SW3

SW2

DISC

CLAMP

3

NUMBER

+

5

4

M

M3
T/T

UP/DOWN

MOTOR

-

6

BI4

SW1

OPEN/

CLOSE

12

XL1

16.9344MHz

65
66
67
68
69
70
71
72

51

52

R-CH

AGND

2

1

75

76

CE
CL

CONT6

DI
DO
INT
WRQ
RES
DEF
XOUT

XIN

VDD5V

VVDD

5

73

183644 49 50 7 14 15 16

45 46

LCHO

CONT7

IC2

LC78641E

SERVO/SIGNAL

CONTROL

ADAVDD

VDD

LVDD

RVDD

L-CH

DGND

5

3

4

47 48 32 31

LVSS

RVSS

RCHO

HFL

XVDD

+5V(+B3)

CNP11

Q2

CONT4

FE

RFEV

30

CONT2

CONT3

CONT5

SLD0
SPD0

FD0
TD0

TE

CDINT

CE

DO

DI

DRF

WRQ

217

74
64
40
19
13

3

33

26
25
24
23

5

6

43

CLK

CD RES

89

CLAMP SW

GND

10

CNP12

12

12

56

3

4

56

3

4

CNS4

CNP4

CONSTANT

VOLTAGR

+3.3V

PICKUP UNIT

+5V

Q1

+5V

30

23
11

9

FIN1

12

+3.3V

FIN2

18 19 20

17

TE

TE-

HFL

IC1

LA9235M

SERVO AMP.

PD

TIN2

TIN1

7

34

8

FE

LDD

22

21

FE-

RFEV

LASER

DRIVER

+3.3V

Q3

FOCUS COIL

TRACKING COIL

Figure 15 BLOCK DIAGRAM (1/3)

– 15 –

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

+5V

1

2 1725 4142 3839

VCC1

18

VCC4

40
24

VCC2

23

VCC3

28

M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER

45671516 26 27

M

M

IC3

35

29
22
21
14

8

SW4

PICKUP IN

CD-BP160W/180W/1500W/1700W

FM ANTENNA

PB HEAD

TAPE 1

REC PB HEAD

TAPE 2

SO302

AM LOOP
ANTENNA

L-CH

R-CH

L-CH
R-CH

CNP302

1

1

2

2

FROM CD
SECTION

CNP11

REC

P.B.

AC BIAS

BF301

1

SWITCHING

Q104~

Q107

2

T303

CNS402

IC301

TA7358AP

1

FM FRONT END

4

3

FM

L312

RF

AM

TRACKING

R

1
2

L

3
4

PLAYBACK AND RECORD/

5

L(T1)
R(T1)

L(T2)
R(T2)

L NF
R NF

POP

REDUCE

L REC
R REC

REF

PLAYBACK AMP.

1

24

2

23

3

22

6
9

16
14
12

SWITCHING

Q108
Q109

5

AM BAND

T306

COVERAGE

IC101

T1/T2

REC

NOR/

15

SWITCHING

Q103

+B2

T302

6
9

8

7

FM

OSC

T301

Q302

FM +B

+B2

+B2

13

P.B

L

4

PB

R

21

1

FM OSC

VT

SWITCHING

Q360

20

CF303

OSC

FM

3

FM/AM IF MPX.

23

AM OSC IN

X352

4.5MHZ

22

1

IC302

LC72131

PLL(TUNER)

7

SO401

VIDEO/AUX

L

R

21

AM MIX

LA1832S

21

16

TAPE

TUNER

1

T351

IC303

24

AM RF IN

15

FM/AM

AUX

CD

3

CF352

4

AM IF

7

STEREO

11

MO/ST

9

10

L

9

R

16

L

10

R

15

L

11

R

14

L

12

R

13

7

X351

CF351

GND

FM/AM

CE

3

5

OUT

18

FM+B

DI

4

1 7

8

9

FM

MO/ST

VCO

DET

MPXIN

FM/AM

16

12

DO

CL

5

6

VDD

17

21

+B2

23

IC401

LC75341

AUDIO PROCESSOR

18

17

8

3

13

L

14

R

15

MUTING

Q110
Q111

DI

1

CE

2

CL

24

R

21

L

4

SYSTEM

MUTE

Q401
Q402

REC/PLAY

5

20

H/N

RECRL

7

18

L NF

8

R NF

17

ALC

10

T1/T2 HIGH

19

T1/T2

ERASE

HEAD

BIAS
OSC

Q114

L104

Q101

SWITCHING

Q102

SWITCHING

Q112

BIAS

Q113

Figure 16 BLOCK DIAGRAM (2/3)

– 16 –

BAIS

CD-BP160W/180W/1500W/1700W

Q401
Q402

+B2

SYSTEM

MUTE

SW401

SPAN SELETOR

SP. DET.

Q601-Q603

Q901
Q902
Q903
Q904

1

STK402-040
POWER AMP.

15

+Vcc

+B1

21

4

3

60

58575655545352

63
78

VLOAD

79
80

85
90

92

93

~~~ ~

100

VDD

41

+B4

IC901

-Vcc

13

9

8

–B1

11

12

65

7

11

FL701

FL DISPLAY

~~

14

IX0328AW

MICROCOMPUTER

RESET

~

10

7

Q609

R-OUT
L-OUT

36

~

~

21

2015

+B4

5051

49484746 44434241

VDD

IC701

SYSTEM

1516

VDD

17

+B4

11

12139

XL701

4.1943MHz

3

F801

T4.0A L 250V

393837

45

SYS. STOP

AVDD

CEDICL

20

~

212322

RESET IC

IC704

1

+B4

2

PT801

POWER TRONSFORMER

24

40

DO

LED722

39
38

37
36

35

34
33

~

31

Q604
Q608

+B4

RL951

MOTOR
DRIVER

Q607

Q606

Q605

1

Q971

RX701

R. PLAY

F. PLAY

T2 PLAY
T1 PLAY

SOLENOID

TAPE
MOTOR

M

3

+B4

2

KEY

SW601-SW603

SW609-SW629

+B2

JK951

HEADPHONES

TO CD

SECTION

+B3

M

FAN MOTOR

SO902

SPEAKER

TERMINAL

180W/1700W
ONLY

FRONT

SPEAKER

SURROND

SPEAKER

REC/PLAY

T1/T2

BAIS

+B2

+B3

+B4

A10V

+5V

KIA7805P
VOLTAGE
REGULATOR

UNSWITCH

5V

KIA7810AP
VOLTAGE
REGULATOR

IC841

IC851

IC852

AN78L05
CONSTANT
VOLTAGE
REGULATOR

D801

D802-D805

F802

T4.0A L 250V

F803

T2.0A L 250V

TF
150 C

SW801

VOLTAGE SELETOR

230-240V

220V
127V
110V

SO801
AC INPUT
SOCKET

AC POWER
SUPPLY CORD
AC 110V/127/220/
230-240V, 50/60Hz

Figure 17 BLOCK DIAGRAM (3/3)

– 17 –

CD-BP160W/180W/1500W/1700W

2

1

A

CNS1B

Vcc

7

7

Vref

6

6

B

E

5

5

A

4

4

B

3

3

F

2

2

C

1

1

C

D

CD SERVO PWB-B

CNS1A

7

7

6

6

R51 68K

5

5

R52 68K

4

4

R53 68K

3

3

R54 68K

2

2

1

1

CNP1

R56
68K

+B

C53

0.001

Q3

KTA1266GR
LASER DRIVER

C51

47/10

+B

R50

47

TIN1
FIN1
FIN2
TIN2

R55
68K

FIN1

1

REF

FIN2

2

REF

TIN1

C55

C54

0.01

47/10

C7
10/16

C8

0.1

+B

R25

10K

R47

3.3

TIN2

C6
100/10

REF1
VREF

LDD
GND
LDON

AGON
EFBL

TEST0
TES1

3

REF

4

REF

5
6
7
8

9
10
11
12
13
14
15

REF

APC

ODRV
AGCON

IC1

LA9235M

SERVO AMP.

REF

REF

LPF

REF

ODRV

REF
REF

REF

AGCON

PH/BH

C11

0.47/6.3

VCC

30

ODRV

REF

PH

DH

REF

LPF

REF

LPF

REF

C12

0.1

RFSW

29

R42

120K

RF-

28

RF

27

NC

26

PH

25

BH

24
23

RFEV

22

FE-

21

FE

20

TE-

19

TE

18

HFL

17
16

TEST

100K

10K

C18

R7

3P

6.8K
(CH)

R6

R5

27K

39K

5

C13

0.01

C14

0.33

R3

R4

C17

0.0047

4

C19

100/10

R10

27K

C20

0.1

C82

0.022

D93

DS1SS133

C23

0.047

C24

2.2/50

0.1

C25

C22

100P

R80

1M

R15
R8
330

10K

C42

C26

68P

0.047

C

47/

C41

100/10

R43

220K

E

F

ACTUATOR

PICKUP UNIT

G

CD MOTOR PWB-C

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

SW4

PICKUP IN

H

TR+
FO+

FO­TR-

13

C52

0.01

+B

TDO

TR­TR+

FO+
FO­GND

+

M

­+

M

-

PD
VR
LD

CNP3A

1

1

2

2

3

3

4

4

5

5

6

6

7

7

CNS2B

CNS3B

6

6

5

5

4

4

3

3
2
1

1

1

2
3
4
5
6

7
88

CNS2A

CNS3A

6
5
4
3

22

1

TR-

1

TR+

2

FO+

3

FO-

4

GND

5

PD

6

VR

7

LD

88

CNP2

+B

R48

6.8K

100/16

SP-

6

SP+

5

SL+

4

SL-

3

PUIN

2

GND(D)

1

CNP3

+B

TO

FDO

FD
FO

C46

0.022

FO+

FO-

TR+

TR-

GND

SL-

SL+

SLDO

VCC1

STANDBY

Vref

MUTE

C50

C49

100/16

-

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21

-

+

+

-

+

-

+

IC3

M63001FP

FOCUS/TRACKING/

-

-

+

+

+

-

SPIN/SLED DRIVER

+B

+

-

-

+

+

-

LD_M+

42

+

LD_M-

-

41

VCC4

+

40

-

LOADING M+

39

LOADING M-

38
37
36
35
34
33

GND

32
31
30
29

VCC3

28

SP-

27

SP+

26

SPO

-

25

+

VCC2(SPN)

+

24

-

23

+

-

22

SPDO

C47

100/16

+B

+B

• NOTES ON SCHEMATIC DIAGRAM can be found on page 34.

1

23456

Figure 18 SCHEMATIC DIAGRAM (1/9)

– 18 –