Sharp CD-E33 E300 Schematic
Illustration CD-E300
CD-E300
CD-E33
SERVICE MANUAL
No. S3319CDE300//
MINI COMPONENT SYSTEM
MODEL CD-E300
CD-E300 Mini Component System consisting of CD-E300
(main unit), CP-E300 (front speakers) and GBOXS5001SJA2
(surround speakers).
MODEL CD-E33
CD-E33 Mini Component System consisting of CD-E33 (main
unit), CP-E33 (front speakers) and GBOXS5001SJA1
(surround speakers).
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CONTENTS
Page
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)....................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
DISASSEMBLY.................................................................................................................................................................. 5
REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 7
ADJUSTMENT ................................................................................................................................................................... 9
TEST MODE .................................................................................................................................................................... 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 12
TYPES OF TRANSISTOR AND LED............................................................................................................................... 12
VOLTAGE ........................................................................................................................................................................ 13
BLOCK DIAGRAM ........................................................................................................................................................... 14
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 18
FUNCTION TABLE OF IC................................................................................................................................................ 36
FL DISPLAY..................................................................................................................................................................... 40
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 source AC 120 V, 60 Hz
Power
consumption
Dimensions Width: 10-5/8" (270 mm)
Weight 14.5 lbs. (6.6 kg)
■ Amplifier (Except for Canada)
Output power 33 watts minimum RMS per channel into 8
Output terminals Front speakers: 8 ohms
■ Amplifier (For Canada)
Output power RMS: 66 W (33 W + 33 W) (10 % T.H.D.)
Output terminals Front speakers: 8 ohms
■ CD player
Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
D/A converter 1-bit D/A converter
Frequency
response
Dynamic range 90 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
Surround speakers: 16 ohms
Headphones: 16 - 50 ohms (recommended:
32 ohms)
Surround speakers: 16 ohms
Headphones: 16 - 50 ohms (recommended:
32 ohms)
pickup
20 - 20,000 Hz
■ Tuner
Frequency range FM: 87.5 - 108 MHz
AM: 530 - 1,720 kHz
■ Cassette deck
Frequency
response
Signal/noise ratio 50 dB (TAPE 1, recording/playback)
Wow and flutter 0.3 % (WRMS)
125 - 8,000 Hz (normal tape)
50 dB (TAPE 2, playback)
■ Front speaker
Type 2-way type speaker system
Tweeter
4" (10 cm) Woofer
Maximum input
power
Rated input power 23 W
Impedance 8 ohms
Dimensions Width: 7-7/8" (200 mm)
Weight 6.0 lbs. (2.7 kg)/each
46 W
Height: 12" (305 mm)
Depth: 6-7/8" (175 mm)
■ Surround speaker
Type 3" (8 cm) full-range speaker
Maximum input
power
Rated input power 10 W
Impedance 16 ohms
Dimensions Width: 7-11/16" (195 mm)
Weight 1.5 lbs. (0.7 kg)/each
20 W
Height: 4" (100 mm)
Depth: 5-1/2" (140 mm)
– 2 –
10
11
CD-E300
CD-E33
NAMES OF PARTS
■
Front panel
1.Disc Tray
2.Power On/Stand-by Button
3.Tuner (Band) Button
4.CD Button
5.CD Track Down or Fast Reverse,
Tuner Preset Down Button
1
2
3
4
5
6
7
8
9
12
13
14
15
16
17
18
19
20 21 22 23 24 25 26 27 28
6.Headphone Jack
7.CD Stop Button
8.CD Play or Repeat Button
9.Tuning Down Button
10.Tuning Up Button
11.Tape 1 Cassette Compartment
12.Tape Button
13.CD Track Up or Fast Forward,
Tuner Preset Up Button
14.Equalizer Mode Select/Extra Bass/
Demo Mode Button
15.Disc Tray Open/Close Button
16.Disc Skip Button
17.Volume Up and Down Buttons
18.Tape 2 Cassette Compartment
19.Tape 1 Record Button
20.Tape 1 Play Button
21.Tape 1 Rewind Button
22.Tape 1 Fast Forward Button
23.Tape 1 Stop/Eject Button
24.Tape 1 Pause Button
25.Tape 2 Play Button
26.Tape 2 Rewind Button
27.Tape 2 Fast Forward Button
28.Tape 2 Stop/Eject Button
1 2 3 4 11 12
5
6
78 910 15
1
13
14
2
3
4
Displa■
1.CD Play Indicator
2.CD Repeat Play Indicator
3.FM Station Indicator
4.AM Station Indicator
5.Disc Number Indicators
6.Clock Indicator
7.Sleep Indicator
8.Timer Play Indicator
9.Tape 1 Record Indicator
10.CD Pause Indicator
11.FM Stereo Mode Indicator
12.FM Stereo Receiving Indicator
13.Memory Indicator
14.CD Random Play Indicator
15.Extra Bass Indicator
■
1.AC Power Input Jack
2.FM/AM Loop Antenna Jack
3.Front Speaker Terminals
4.Surround Speaker Terminals
y
Rear panel
– 3 –
CD-E300
CD-E33
1
2
3
1
F■■ront speaker
1.Tweeter
2.Bass Reflex Duct
3.Woofer
4.Speaker Wire
2
4
Surround speaker
1.Full-Range Speaker
2.Speaker Wire
2
Note:
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.
STEP
10
11 Turntable 1. Screw ....................... (L1) x1 6-2
12 Loading Tray 1.
13 CD Servo PWB 1. Screw ...................... (N1) x3 6-3
14
15 CD Mechanism 1. Screw ...................... (Q1) x4 6-4
Note 1:
1. After removing the connector for the optical pickup from the
REMOVAL PROCEDURE FIGURE
1 Top Cabinet 1. Screw...................... (A1) x5 5-1
2 Side Panel 1. Screw ...................... (B1) x6 5-1
(Left/Right)
3 CD Player Unit 1. Turn on the power supply, .. 5-2
4 Rear Panel 1. Screw ...................... (D1) x8 5-2
5 Main PWB 1. Screw ...................... (E1) x5 5-2,5-3
6 Front Panel 1. Screw .......................(F1) x3 5-3
7
Power Switch PWB
8 Display PWB 1. Screw .................... (H1) x10 6-1
9 Tape Mechanism 1. Open the cassette holder. 6-1
Headphones PWB
(Note 1) 2. Socket ..................... (N2) x5
Loading Switch PWB
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) x4 5-3
5. Hook........................ (C4) x2 5-2
2. Socket ..................... (E2) x9 5-3
2. Hook.........................(F2) x2
1. Screw ......................(G1) x3 6-1
2. Socket .....................(G2) x1
2. Screw...................... (J1) x8
1. Screw ...................... (K1) x1 6-1
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) x2 6-3
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 Meter Specified Value
Play: TW-2111 Tape 1: Over 80 g
••
• Torque Check
••
Torque Meter
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
••
• Tape Speed
••
Test Tape
Adjusting
Tape MTT-111 Variable 3,000 ± 30 Hz Speaker
speed Resistor in Terminal
motor. (Load
TAPE MECHANISM
Variable Resistor in Motor
T351
AM IF
TP302
R356
R357
Tape 2: Over 80 g
Tape 1
Point
Tape
Motor
Figure 9-1
FM BAND
COVERAGE fL
VR351
FM MUTE
Level
FM IF
T306
AM BAND
COVERAGE fL
Specified Value
Specified
Value
1
22
20
IC302
11 12
L303
T304
1
L302
FM RF
T302
AM TRACKING
fL
Tape 2
Instrument
Connection
resistance:
6 ohms)
MAIN PWB
R381
TP301
IC301
CNP301
CD-E300
CD-E33
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
••
•
AM IF/RF
••
Signal generator: 400 Hz, 30%, AM modulated
Test Stage
AM IF 450 kHz 1,720 kHz T351 *1
AM Band — 530 kHz (fL): T306 *2
Coverage 1.1 ± 0.1 V
AM Tracking 990 kHz 990 kHz (fL): T302 *1
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
••
• FM RF
••
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Test Stage
FM Band — 87.50 MHz L303 (fL): *1
Coverage 1.3 V ± 0.1 V
FM RF 98.00 MHz 98.00 MHz L302 *2
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker Terminal
••
• FM IF
••
Signal generator: 10.7 MHz, FM modulated
Test Stage
IF 10.7 MHz 98 MHz T304 *1
*1. Input: Antenna Output: TP301
• FM Mute Level (FM ST MODE)
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Frequency
98.00 MHz 98.00 MHz VR351*1 Input:CNP301
(26 dBµV) Output: Speaker
*1. Adjust so that an output signal appears.
Frequency Frequency
Display
Frequency Frequency
Display
(10-30 dB)
Frequency Frequency
Display
Display
Adjusting
Setting/
Adjusting
Point
Setting/
Adjusting
Point
(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 test04 TIMER ON/OFF TEST MODE
FL DISPLAY:
STOP + DISC SKIP test05 VFD DISPLAY WINDOW TEST MODE
FL DISPLAY: VFD ALL LIGHT
FUNCTION: TEST THE VFD DISPLAY WINDOW
PLAY + OPEN/CLOSE test08 OPEN/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 DOWN test06 FRONT 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 UP test03 VOLUME 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 + TUNER test02 TUNER TEST MODE
FL DISPLAY
FUNCTION STORE 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.
REF. NO
SW1 OPEN/CLOSE ON—OFF
SW2 DISC ON—OFF
SW3 UP ON—OFF
SW4 PICKUP IN ON—OFF
SW5 TAPE 1 PLAY ON—OFF
SW6 TAPE 1 FF/REW ON—OFF
SW7 TAPE 2 FF/REW ON—OFF
SW8 TAPE 2 PLAY ON—OFF
SW701 POWER ON/STAND-BY ON—OFF
SW702 CD ON—OFF
SW703 TUNING UP ON—OFF
SW704 PRESET UP ON—OFF
DESCRIPTION
POSITION
TYPES OF TRANSISTOR AND LED
FRONT
VIEW
REF. NO DESCRIPTION POSITION
SW705 TUNER (BAND) ON—OFF
SW706
SW707 PRESET DOWN ON—OFF
SW708 EQUALIZER/X-BASS/DEMO ON—OFF
SW709 TAPE ON—OFF
SW710 STOP ON—OFF
SW711 VOLUME UP ON—OFF
SW712 DISC SKIP ON—OFF
SW713 OPEN/CLOSE ON—OFF
SW714 PLAY/REPEAT ON—OFF
SW715 VOLUME DOWN ON—OFF
SW801 REC./P.B. ON—OFF
TUNING DOWN
ON—OFF
E C B
(S) (G) (D)
(1) (2) (3)
KRC102 M
KRC107 M
KRC104 M
KSA1015 GR
HSB562 C
HSC1609 GR
KSC1815 GR
KSC3203 Y
KSA1271 Y
SSC1674 C
123
SVC348S
KDV147B
– 12 –
VOLTAGE
CD-E300
CD-E33
IC101
PIN
VOLTAGE
NO.
1 18.8 V
0.6 V
2
3
5.6 V
IC102
PIN
VOLTAGE
NO.
1 18.8 V
0 V
2
3
10 V
IC103
PIN
VOLTAGE
NO.
1 18.8 V
0 V
2
3
8 V
IC201
PIN
VOLTAGE
NO.
1 0.14 V
29 V
2
3
0.15 V
–29 V
4
0 V
5
0.3 V
6
0 V
7
0 V
8
0 V
9
10 0 V
11 0.3 V
12 0 V
13 0 V
14 0 V
15 29 V
IC402
PIN
VOLTAGE
NO.
10 V
4.2 V
2
3
5.1 V
2.7 V
4
2.4 V
5
4.3 V
6
1.7 V
7
2.7 V
8
3.5 V
9
10 2.7 V
11 4 V
12 0 V
13 3.8 V
14 0 V
15 0 V
16 0 V
17 2.7 V
18 0 V
19 2.7 V
20 2.7 V
21 2.7 V
22 2.7 V
23 2.7 V
24 3.1 V
25 2.7 V
2.7 V
26
27
2.7 V
2.7 V
28
2.8 V
29
2.8 V
30
2.8 V
31
2.8 V
32
PIN
VOLTAGE
NO.
1 2.6 V
2.6 V
2
3
2.6 V
5.1 V
4
0 V
5
2.5 V
6
4.5 V
7
4 V
8
4.7 V
9
10 0 V
11 0 V
12 0 V
13 0 V
14 5.1 V
15 2.5 V
16 0.2 V
17 0.3 V
18 4.8 V
19 2.6 V
20 2.6 V
21 2.7 V
22 2.7 V
23 2.7 V
24 2.7 V
25
2.7 V
26
2.7 V
27
2.7 V
28
2.7 V
29
2.7 V
30
2.4 V
2.4 V
31
32
2.7 V
33
2.7 V
34
2.7 V
35
0.3 V
36
0.3 V
37
2.3 V
38
0.3 V
39
0.3 V
40
5 V
Q101
PIN
VOLTAGE
NO.
E –28.5 V
–29 V
C
B
–36 V
Q102
PIN
VOLTAGE
NO.
E0 V
0.75 V
C
B
0.13 V
Q103
PIN
VOLTAGE
NO.
E 0.75 V
0 V
C
B
0.13 V
IC401
PIN
VOLTAGE
NO.
41 0.2 V
2.7 V
42
43
0 V
2.7 V
44
1.3 V
45
0.5 V
46
2.7 V
47
1.6 V
48
0.3 V
49
50 5.1 V
51 0.3 V
52 2.7 V
53 2.7 V
54 0.2 V
55 0.3 V
56 5 V
57 0.3 V
58 2.5 V
59 2.7 V
60 5.1 V
61 4.8 V
62 0.3 V
63 0.3 V
64 0.2 V
65
0.3 V
66
5.1 V
67
5.1 V
68
0.3 V
69
5.1 V
70
5.1 V
5.1 V
71
72
4.7 V
73
2.4 V
74
0.3 V
75
2.4 V
76
5.1 V
77
0.2 V
78
0.2 V
79
5.1 V
80
5.1 V
Q104
PIN
VOLTAGE
NO.
E0 V
0.12 V
C
B
0.75 V
Q107
PIN
VOLTAGE
NO.
E0 V
0 V
C
B
0.7 V
Q108
PIN
VOLTAGE
NO.
E7 V
7 V
C
B
6.4 V
IC403
PIN
VOLTAGE
NO.
1 4.8 V
0 V
2
3
0 V
0 V
4
0 V
5
0 V
6
0 V
7
5 V
8
0 V
9
10 0 V
11 0 V
12 4.8 V
13 0 V
14 4.8 V
15 2.4 V
16 2.3 V
17 0 V
18 2 V
19 2.4 V
20 4.8 V
21 4.8 V
22 4.8 V
23 0 V
24 5 V
25
4.9 V
26
2.4 V
27
4.6 V
28
4.6 V
29
4.8 V
30
4.8 V
4.8 V
31
32
0 V
33
4.8 V
34
4.8 V
35
4.8 V
36
5.1 V
37
4.9 V
38
0 V
39
0 V
40
0 V
41
4.8 V
42
4.8 V
43
4.8 V
44
0 V
45
0.2 V
46
4.6 V
47
4.1 V
48
4.8 V
Q117
PIN
VOLTAGE
NO.
E0 V
9.9 V
C
B
0 V
IC404
PIN
VOLTAGE
NO.
1 2.7 V
2.7 V
2
3
2.7 V
2.7 V
4
5.2 V
5
5.2 V
6
4.7 V
7
0 V
8
2.7 V
9
10 2.7 V
11 2.4 V
12 2.9 V
13 0 V
14 2.9 V
15 0 V
16 5.6 V
17 2.7 V
18 2.7 V
19 2.7 V
20 2.7 V
21 6 V
22 6 V
23 2.7 V
24 2.7 V
25 2.7 V
3 V
26
27
2.5 V
0 V
28
2.7 V
29
2.9 V
30
2.4 V
31
0 V
32
IC601
PIN
VOLTAGE
NO.
1 4.8 V
0 V
2
3
0 V
4.8 V
4
4.8 V
5
4.8 V
6
4.8 V
7
4.8 V
8
4.8 V
9
10 4.8 V
11 4.8 V
12 4.8 V
13 4.8 V
14 4.8 V
15 4.8 V
16 4.8 V
17 4.8 V
18 4.8 V
19 4.8 V
20 4.8 V
21 4.8 V
22 4.8 V
23 7.6 V
24 4.8 V
IC701
PIN
VOLTAGE
NO.
10 V
0 V
2
3
0 V
0 V
4
4.4 V
5
4.4 V
6
0 V
7
4.5 V
8
4.8 V
9
10 0 V
11 0 V
12 0 V
13 0 V
14 5.2 V
15 3.5 V
16 8.3 V
17 13.2 V
18 16.2 V
19 16.2 V
20 13.2 V
21 17.6 V
22 –27 V
23 –25 V
24 –27 V
25
15.2 V
26
7.2 V
27
–28 V
28
12.5 V
29
7.2 V
30
4.4 V
3.8 V
31
32
7.2 V
33
7.2 V
34
4.3 V
35
7.2 V
36
7.2 V
37
7.2 V
38
4.7 V
39
4.8 V
40
4.8 V
41
4.8 V
42
4.8 V
43
0 V
44
2.6 V
IC801
PIN
VOLTAGE
NO.
10 V
1.5 V
2
3
1.5 V
1.8 V
4
0.8 V
5
0 V
6
0 V
7
0.6 V
8
3 V
9
10 3 V
11 0 V
12 0 V
13 6.2 V
14 3.8 V
15 0 V
16 3 V
17 0.6 V
18 0 V
19 0 V
20 1 V
21 1.8 V
22 0.6 V
23 0 V
24 0 V
Q201
PIN
VOLTAGE
NO.
E0 V
0 V
C
B
0.7 V
Q202
PIN
VOLTAGE
NO.
E0 V
0 V
C
B
0.7 V
Q203
PIN
VOLTAGE
NO.
E0 V
0 V
C
B
0.6 V
Q302
PIN
VOLTAGE
NO.
E0 V
0.9 V
C
B
2.3 V
Q306
PIN
VOLTAGE
NO.
E0 V
0.8 V
C
B
3.6 V
Q204
PIN
VOLTAGE
NO.
E0 V
0 V
C
B
0.6 V
Q351
PIN
VOLTAGE
NO.
E0 V
4.7 V (0 V)
C
B
3.7 V (0 V)
Q401
PIN
VOLTAGE
NO.
E5 V
2.1 V
C
B
4.2 V
Q402
PIN
VOLTAGE
NO.
E0 V
0.3 V
C
B
0 V
Q403
PIN
VOLTAGE
NO.
E 5.7 V
0 V
C
B
5.3 V
Q404
PIN
VOLTAGE
NO.
E 6.3 V
5.2 V
C
B
5.2 V
Q405
PIN
VOLTAGE
NO.
E0 V
5.3 V
C
B
0 V
Q406
PIN
VOLTAGE
NO.
E0 V
5.3 V
C
B
0 V
Q407
PIN
VOLTAGE
NO.
E6 V
3 V
C
B
5.5 V
Q408
PIN
VOLTAGE
NO.
E0 V
0.3 V
C
B
0 V
Q409
PIN
VOLTAGE
NO.
E0 V
5 V
C
B
0 V
Q410
PIN
VOLTAGE
NO.
E 5.6 V
0 V
C
B
5.3 V
Q411
PIN
VOLTAGE
NO.
E0 V
4.8 V
C
B
0 V
Q412
PIN
VOLTAGE
NO.
E0 V
4.8 V
C
B
0 V
Q413
PIN
VOLTAGE
NO.
E0 V
0 V
C
B
1.1 V
Q801
PIN
VOLTAGE
NO.
E 0.26 V
4.92 V
C
B
0.94 V
– 13 –
CD-E300
T
S
V
M
M
O
I
3
M
_
CD-E33
SW1
OPEN
CLOSE
SW2
DISC
SW3
UP
M3
T/T UP/DOWN
MOTOR
M4
CD LOADING
MOTOR
SW4
PICKUP IN
NM802
SPINDLE
MOTOR
NM801
SLED
MOTOR
TRACKING COIL
GND
M
M
M
M
PICKUP UNIT
FOCUS COIL
1/2V
MON
LD
VCC
M_GND
IC404
MM1469XH
FOCUS/TRACKING/
SPIN/SLED DRIVER
C
F
B
A
E
+5V
MOTOR
DRIVER
CONSTANT
VOLTAGE
Q404
+5V
+6.2V
+5V
1 2 3 4 5 6 7 8 9 10 11 12 13 14
VG2
TRB
VG1
GND
MUTE
REG O
VCC
BIAS
+6.2V
E
RFOUT
VCC
F
RFIN
VG3
TBAL
CACC
VIN2
VIN3
VIN1
VO1–
VO1+
VO4+
VO4–
GND
VG4
VIN4
M_GND
32 31 30 29 28 27 26 25 24 23
B
A
D
C
IC402
AN22000A
HEAD AMP.
RFN
VCC
LD
PD
1 2 3 4 5 6 7 8 9
Q402,403
Q405~408
LOAD–
LOAD+
M_GND
Q409
Q410
ROTATE
M_GND
GND
OPO
VO2–
VO2+
PO1+
VO3+
PO1–
VO3–
15 17 16 18 19 20 21 22 23 24 25 26 27 28
22 21 20 19 18 17
TEN
FEN
FBAL
GCTL
FEOUT
CBDO
BDO
3TOUT
CEA
ARF
10 16 15 14 13 12 11
TEOUT
CDFTR
TEBPF
OFTR
VREF
VDET
GND
NRFDET
D_GND
D_GND
CNS701
21
22
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
TO DIS
37
38
39
40
41
42
43
44
46
47
48
TVR
TVD
ECM
ECS
KICK
TRO
FOO
VREF
FBAL
TBAL
FE
TE
RFEN
VDET
OFT
TRCR
/RFDE
BDO
LD
6
GND
POW_SW
D
U
D
L
P
C
N
M
LASER
DRIVER
Q401
+5V
+5V
Figure 14 BLOCK DIAGRAM (1/4)
– 14 –
CD-E300
CD-E33
D_GND
TO DISPLAY SECTION
CNP701
CNS701
POW_SW
D_GND
36 35 34 33 32 31 30 29 28 27 26
SD
37
38
UP_SW
39
DISC_SW
40
LOAD_SW
41
PICK_IN
42
CD_STB
43
NRST
44
MMOD
46
MCLK
47
MDATA
48
MLD
TO MAIN SECTION
1
3465 2
STB
CLK
DATA
STB
CLK
DATA
IX0052SJ
SYSTEM
MICROCOMPUTER
MRST
INTR
BLKCK
IC403
LOAD–
LOAD+
POW_KEY
756243 1
D_GND
IR
CD+B
SYS_STOP
GVSW
ROTATE
STAT
7654321
CNP101
6R2V
P_STB
M_GND
CHANEL_SW
+B5
P_STB
CE
P_MUTE
CL
DO
DI
VSS
OSC1
OSC2
VDD
TAPE_DET
P_MUTE
FM_ST
24
23
22
21
20
17
16
15
14
13
5.6V+B3
X402
8MHz
CNS101
Q411
Q412
Q413
D_GND
RESET
TAPE_DET
SD
CD+B
FM_ST
CE
CL
DO
DI
TO MAIN SECTION
CNP105
21
22
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
TVR
TVD
ECM
ECS
KICK
TRO
FOO
VREF
FBAL
TBAL
FE
TE
RFENV
VDET
OFT
TRCRS
/RFDET
BDO
LD
18 17 16 14
/RST
STAT
DMUTE
13
SQCK
BLKCK
MN6627482W
9 8 7 5 4
MLD
MDATA
IC401
MCLK
DVSS1
DVDD1
SERVO/SIGNAL CONTROL
AVSS2
IREF
ARF
44 45 50 51 57 58 59 60
AVDD2
D_GND
VSS
X403
16.93MHz
+5V
SSEL
80
MSEL
79
PSEL
78
77
CSEL
76
RSEL
75
OUTR
74
AVSS1
73
OUTL
72
AVDD1
/TEST
71
70
IOSEL
VDD
X2
X1
D_GND
CD_R
A_GND
CD_L
CNS103
3
2
1
TO MAIN SECTION
CNP103
Figure 15 BLOCK DIAGRAM (2/4)
– 15 –
CD-E300
.
O
0
D
Q
Q
A
B
7
CD-E33
AM LOOP
ANTENNA
TAPE 2
PLAYBACK
HEAD
TAPE 1
RECORD/
PLAYBACK HEAD
FM
ANTENNA
3
2
1
CNP301
M2
TAPE
MOTOR
MECHANISM SWITCH
SW5
T1 PLAY
SW6
T1 FF/REW
SW7
T2 FF/REW
SW8
T2 PLAY
FROM
CD SECTION
CNS103
L-CH
R-CH
REC
P.B.
L-CH
R-CH
AC BIAS
ERASE
HEAD
B.P.F
BF301
AM TRACKING
T302
M
CNP103
SWITCHING
SW801
B
FM IF FM IF
T304
6
IC301
TA7358AP
1
FM FRONT END
4
3
L302
+B6
T306
TAPE_DET
5
7
FM
OSC BUFF
AM BAND
COVERAGE
2
FM RF
1
2
3
PLAYBACK AND RECORD
L(T1)
R(T1)
L(T2)
R(T2)
SW801
L NF
C, D,
F, G
R NF
IC801
AN7345K
/PLAYBACK AMP.
1
24
2
23
3
22
P.B
6
L REC
REC
9
16
R REC
REF
14
15
1211
8
OSC
L303
Q302
19
CF303
9
FM MPX./AM IF
FM
13
L
4
PB
R
21
5
20
L REC
7
R
18
L NF
8
R NF
17
ALC
10
IC303
LA1832S
FM IF DET./
FM MUTE
LEVEL
VR351
FM OSC
VT
20
Q360
SWITCHING
+B2
SW801
A, E
Q306
FM
AM OSC
OUT
2324
X352
4.5 MHz
1
OSC
CF302
T351
AM IF
1
2
AM MIX
IC303
LA1832S
21
AM RF IN
AM OSC IN
FM IN
AM IN
22
1516
IC302
LC72131
PLL(TUNER)
FM/AM
7
L
TAPE
R
L
TUNER
R
CD
R
DZ5.1BSJ
CF352
AM IF
10
IF OUT
11
4
GND
76
STEREO
CF351
985
VCC
DET
FM/AM
OUT
18
SD
CL
DI
CE
4
5
3
FM
MPXIN
16
DO
6
17
VCO
X351
456 kHz
13
MO/ST
L
R
FM/AM
12
Q351
SWITCHING
14
15
17
MO/ST
10
98
10
15
11
AUDIO PROCESSOR
14
L
12
MUTE
21
IC601
LC75341M
DI
1
CE
2
CL
24
21
4
13
8
7
3
17
18
23
+B2
R
L
+B5
+B2
FM ST
+B4
+B5
+B3
SD
STB
CD+B
+B6
FROM C
SECTION
CNS105
CL
DO
FROM
SECTI
CD_6R2V
DI
CNS7
VOLT
654321
CE
CD+B
+
BIAS
OSC
Q801
L801
SW801
H
+B2
Figure 16 BLOCK DIAGRAM (3/4)
– 16 –
D_GND
7654321
FROM CDSECTION
M_GND
CD_6R2V
CHANEL_SW
CNS101
STB
MUTE
+5.6V
CNP101
+B3
5
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