NAMES OF PARTS ........................................................................................................................................................... 3
TEST MODE .................................................................................................................................................................... 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 12
TYPES OF TRANSISTOR AND LED............................................................................................................................... 12
VOLTAGE ........................................................................................................................................................................ 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 18
FUNCTION TABLE OF IC................................................................................................................................................ 36
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-E300
CD-E33
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.
1. Inspect all lead dress to make certain that leads are not
pinched or that hardware is not lodged between the chassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment covers
or shields, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage
current in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5 kohm, 10 watt resistor
paralleled by a 0.15 µF capacitor in series with all exposed
metal cabinet parts and a known earth ground, such as
conduit or electrical ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher,
sensitivity to measure the AC voltage drop across the
resistor (See diagram).
* Connect the resistor connection to all exposed metal parts
having a return path to the chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
VTVM
AC SCALE
1.5 kohms
10 W
0.15 µF
TO EXPOSED
TEST PROBE
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICATIONS
■ General
Power sourceAC 120 V, 60 Hz
Power
consumption
DimensionsWidth: 10-5/8" (270 mm)
Weight14.5 lbs. (6.6 kg)
■ Amplifier (Except for Canada)
Output power33 watts minimum RMS per channel into 8
Output terminalsFront speakers: 8 ohms
■ Amplifier (For Canada)
Output powerRMS: 66 W (33 W + 33 W) (10 % T.H.D.)
Output terminalsFront speakers: 8 ohms
■ CD player
Type3-disc multi-play compact disc player
Signal readoutNon-contact, 3-beam semiconductor laser
D/A converter1-bit D/A converter
Frequency
response
Dynamic range90 dB (1 kHz)
Specifications for this model are subject to change without
prior notice.
64 W
Height: 12" (305 mm)
Depth: 13-1/2" (343 mm)
ohms from 100 Hz to 20 kHz, 10% total harmonic distortion
The speaker grilles on the front and surround speakers are not
removable.
10
11
Remote c■ontrol
1
2
3
4
5
6
12
13
14
15
16
7
8
9
17
18
19
1.Remote Control Transmitter
2.Power On/Stand-by Button
3.CD Button
4.Tape Button
5.Memory Button
6.CD Track Down or Fast Reverse,
Tuner Preset Down Button
7.CD Play or Repeat Button
8.CD Stop Button
9.Equalizer Mode Select Button
10.Clock Button
11.Timer Button
12.Disc Number Select Buttons
13.Tuner (Band) Button
14.Program Clear Button
15.CD Random Button
16.CD Track Up or Fast Forward,
Tuner Preset Up Button
17.CD Pause Button
18.Extra Bass Button
19.Volume Up and Down Buttons
20.Sleep Button
20
Buttons with " " mark in the illustration or highlighted in bold on the
right can be operated on the remote control only.
– 4 –
CD Player
Unit
1
1
2
2
Main PWB
Rear
Panel
Pull
Pull
Front
Panel
(D1)x2
ø3x10mm
(E1)x1
ø3x10mm
(E1)x2
ø3x8mm
(D1)x6
ø3x10mm
(C2)x2
ø3x8mm
(C4)x1
(C1)x1
(C4)x1
Front
Panel
Main PWB
Power
PWB
(E2)x3
(E2)x3
(E2)x3
(F2)x1
(F2)x1
(C3)x1
(C3)x3
(F1)x3
ø3x6mm
(E1)x2
ø3x10mm
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.
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electrostatic damage.
open the disc tray, take out
the CD tray cover, and close.
2. CD Tray Cover........ (C1) x1
3. Screw ...................... (C2) x2
4. Socket ..................... (C3) x45-3
5. Hook........................ (C4) x25-2
2. Socket ..................... (E2) x95-3
2. Hook.........................(F2) x2
1. Screw ......................(G1) x36-1
2. Socket .....................(G2) x1
2. Screw...................... (J1) x8
1. Screw ...................... (K1) x16-1
2. Spacer......................(L2) x1
Push forward the loading tray.
2.
Inserting the flat head into the
hole, push in the direction indi-
cated by the arrow. ...
1. Screw ...................... (P1) x26-3
2. Spring...................... (Q2) x4
DISASSEMBLY
6-2
(M1) x2
– 5 –
Side Panel
(Right)
(A1)x1
ø3x8mm
(B1)x2
ø3x10mm
(A1)x2
ø3x16mm
(B1)x2
ø3x8mm
Top Cabinet
Rear
Panel
Figure 5-1
Figure 5-2
Figure 5-3
CD-E300
Front
Panel
(A1)x2
ø3x16mm
Side Panel
(Left)
(B1)x2
ø3x10mm
CD-E33
CD-E300
CD-E33
Display PWB
(H1)x10
ø2.5x10mm
Tape
Mechanism
(J1)x8
ø3x10mm
(G1)x3
ø2.5x10mm
(K1)x1
ø2.5x10mm
(L1)x1
ø3x8mm
Front Panel
Headphones
PWB
Figure 6-1
(L2)x1
Display PWB
Power Switch
PWB
Cassette
Holder
Screwdriver
(G2)x1
Open
CD Servo
PWB
(N2)x2
(Q1)x4
ø2.5x8mm
(Q2)x4
(N1)x3
ø3x24mm
(N2)x1
(N2)x1
Figure 6-3
(N2)x1
(P1)x2
ø3x8mm
Loading
Tray
Loading Switch
PWB
CD Mechanism
Loading Tray
(M1)x1
Screwdriver
Turntable
Loading Tray
(M1)x1
Figure 6-2
CP-E300/GBOXS5001SJA2/CP-E33/GBOXS5001SJA1
These speakers CP-E300/GBOXS5001SJA2/CP-E33/
GBOXS5001SJA1 are available in assembles only and may
not be disassembled.
Figure 6-4
– 6 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 9 of the disassembly method to
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 1) (See Fig. 7-1)
1. When you remove the screws (A1) x 2 pcs., the record/
playback head can be removed.
2. Move the hooks (A2) x 2 pcs., toward the center position as
shown in Fig. 7-1 and then lift the erase head.
Hook
(A2)x2
(A1)x1
ø2x7mm
(A1)x1
ø2x3mm
CD-E300
CD-E33
TAPE 1
Record/Playback
Head
How to remove the playback head (TAPE 2)
(See Fig. 7-2)
1. When you remove the screws (B1) x 2 pcs., the playback
head can be removed.
How to remove the pinch roller (TAPE 1)
(See Fig. 7-3)
1. When you remove the screw (C1) x 1 pc., the pinch roller
can be removed.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
How to remove the pinch roller (TAPE 2)
(See Fig. 7-3)
1. When you remove the screw (D1) x 1 pc., the pinch roller
can be removed.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
How to remove the motor (See Fig. 7-4)
1. Remove the belt.
2. Remove the screws (E1) x 6 pcs., to remove the motor
bracket.
3. Remove the screws (E2) x 3 pcs., to remove the motor.
Erase
Head
TAPE 1
(B1)x1
ø2x6mm
(C1)x1
ø2x4mm
Pinch Roller
Figure 7-1
(B1)x1
ø2x6mm
Figure 7-2
Playback
Head
TAPE 2
TAPE 2
(D1)x1
ø2x4mm
Pinch Roller
How to remove the belt (TAPE 1)
(See Fig. 7-5)
1. Remove the main belt (F1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (F2) x 1 pc.
How to remove the belt (TAPE 2)
(See Fig. 7-5)
1. Remove the main belt (G1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (G2) x 1 pc.
Motor
TAPE 2
Main
Belt
(G1)x1
FF/REW
Clutch Ass'y
FF/REW
Belt
(G2)x1
TAPE 2
Main Belt
(G1)x1
Main
Belt
(F1)x1
TAPE 1
Main Belt
(F1)x1
Motor
FF/REW
Belt
(F2)x1
TAPE 1
FF/REW
Clutch Ass'y
– 7 –
(E1)x2
ø2x4mm
Figure 7-3
(E1)x2
ø2x4mm
Motor
(E1)x2
ø2x4mm
Motor
Bracket
(E2)x3
Special Screw
Motor
Bracket
Motor
Figure 7-4Figure 7-5
CD-E300
CD-E33
CD MECHANISM SECTION
Perform steps 1, 2, 3, 11, 12, 13 and 15 of the disassembly
method to remove the CD mechanism.
How to remove the T/T up/down motor
(See Figs. 8-1, 8-2)
1. Remove the screws (A1) x 4 pcs.
2. Remove the belt (A2) x 1 pc.
3. Remove the screws (A3) x 2 pcs., to remove the T/T up/
down motor.
(A1)x4
ø3x8mm
(B1)x2
ø3x8mm
Figure 8-1
(B3)x2
ø2.4x3mm
(B1)x4
ø3x8mm
Loading
Tray
(A3)x2
ø2.4x3mm
How to remove the loading motor
(See Figs. 8-1, 8-2)
1. Remove the screws (B1) x 6 pcs.
2. Remove the belt (B2) x 1 pc.
3. Remove the screws (B3) x 2 pcs., to remove the loading
motor.
How to remove the pickup (See Fig. 8-3)
1. Remove the stop washer (C1) x 1 pc., to remove the gear
(C2) x 1 pc.
2. Remove the screws (C3) x 2 pcs., to remove the shaft
(C4) x 1 pc.
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 so as to protect the optical pickup from
electrostatic damage.
(B2)x1
CD
Pickup
Mechanism
(C3)x1
ø2.6x6mm
Figure 8-2
Stop Washer
(C1)x1
(A2)x1
Gear
(C2)x1
T/T Up/Down
Motor
Loading
Motor
(C3)x1
ø2.6x6mm
Shaft
(C4)x1
– 8 –
Figure 8-3
ADJUSTMENT
MECHANISM SECTION
••
• Driving Force Check
••
Torque MeterSpecified Value
Play: TW-2111Tape 1: Over 80 g
••
• Torque Check
••
Torque Meter
Play: TW-211130 to 80 g.cm30 to 80 g.cm
Fast forward: TW-2231—70 to 180 g.cm
Rewind: TW-2231—70 to 180 g.cm
(Turn the
core of transformer T304
fully counterclock wise)
Adjusting
Parts
Setting/
Parts
Terminal
Instrument
Connection
Instrument
Connection
Instrument
Connection
Instrument
Connection
Figure 9-2 ADJUSTMENT POINTS
– 9 –
CD-E300
CD-E33
TEST MODE
PLAY + DISC SKIP test04TIMER ON/OFF TEST MODE
FL DISPLAY:
STOP + DISC SKIPtest05VFD DISPLAY WINDOW TEST MODE
FL DISPLAY:VFD ALL LIGHT
FUNCTION:TEST THE VFD DISPLAY WINDOW
PLAY + OPEN/CLOSE test08OPEN/CLOSE & 3 DISC CHANGER AGING TEST
DISPLAY:
FUNCTION:Enter the TEST MODE 8, MCU control the 3 DISC CHANGER OPEN/CLOSE.
After open finished, tray rotate 1 circle (360 degree). Then close, After close
finished, tray rotate 1 circle (360 degree) again.
Request:Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
– 10 –
PLAY + VOLUME DOWNtest06FRONT PANEL KEY TEST
FL DISPLAY:
CD-E300
CD-E33
FUNCTION:
F RONT PANEL KEY TEST MODE,IF ALL KEY HAVE BEEN PRESSED 1 TIME,
THEN
PRESS THE "POWER" KEY, VFD DISPLAY "OK".
PLAY + VOLUME UPtest03VOLUME TEST MODE
FL DISPLAY:
FUNCTION:
1. TEST 3 DISPLAY 1 SECOND. THEN CHANGE TO CD FUNCTION.
2. IN CD FUNCTION (Pickup IN CHECK DISC1 SW TOC_IL No
DISC RECEIVE OPEN/CLOSE KEY OPEN RECEIVE
OPEN/CLOSE KEY CLOSE)
3. Can change to other function [TAPE/TUNER] FUNCTION KEY PROCESS
SAME AS NORMAL PROCESS.
4. In any function within this test mode VOLUME CONTROL HAS
3LEVEL [0/23/MAX] CANCEL VOL UP/DOWN CONTINUE PROCESS
FUNCTION.
PLAY + TUNERtest02TUNER TEST MODE
FL DISPLAY
FUNCTIONSTORE 10 PRESET TUNER IN THE MEMORY [AM/FM ST]
FM test use the BAND key change from FM ST.
– 11 –
CD-E300
CD-E33
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 pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “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.
• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chassis 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 “ 1 ” ( ) 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.