Sony CSD-MP100 User manual

1
SERVICE MANUAL
CSD-MP100
CD STEREO RADIO CASSETTE RECORDER
Other Specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
SPECIFICATIONS
Radio section
Frequency range
FM: 87.5 - 108 MHz
US, CND model:
AM: 530 - 1,710 kHz
TW, AUS, KR model:
AM: 531 - 1,611 kHz
AEP, UK, E4, E15, SP model:
AM: 531 - 1,611 kHz (9 kHz step)
530 - 1,610 kHz (10 kHz step)
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 sec. with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 10,000 Hz
Ver 1.0 2003. 06
9-877-441-01
2003F04-1
© 2003. 06
AUDIO POWER SPECIFICATIONS (US model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 8-ohm loads, both channels driven from
150 - 6,300 Hz; rated 1.5 W per channel-
minimum RMS power, with no more than 10%
total harmonic distortion in AC operation.
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
CD Model Name Using Similar Mechanism CFD-S200
Section CD Mechanism Type KSM-213RDP
Optical Pick-up Name KSS-213R
TC Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type MF-MP100
– Continued on next page –
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation

2
General
Speaker
Full range: 10 cm dia.,
4 Ω, cone type (2)
Power output
2.0 W + 2.0 W (at 4 Ω, 10%
harmonic distortion)
Power requirements
For CD stereo radio cassette recorder:
US, CND, TW model:
120 V AC, 60 Hz
E4 model
200 - 240 VAC, 50/60 Hz
E15 model
220 - 240 VAC, 50/60 Hz
AEP, UK,AUS, SP model:
230 V AC, 50 Hz
KR model:
220 V AC, 60 Hz
9 V DC, 6 size D (R20) batteries
For remote control:
3 V DC, 2 size AA (R6) batteries
Power consumption
AC 10 W
Battery life
For CD stereo radio cassette recorder:
FM recording
Sony R20P: approx. 13.5 h
Sony alkaline LR20: approx. 24 h
Tape playback
Sony R20P: approx. 7.5 h
Sony alkaline LR20: approx. 15 h
CD playback
Sony R20P: approx. 2.5 h
Sony alkaline LR20: approx. 7 h
Dimensions
Approx. 390 ×170 ×259.5 mm (w/h/d)
(15 3/8 ×6 3/4 ×10 1/4 inches) (incl. projecting parts)
MassApprox. 4 kg (8 lb. 13 oz.) (incl. batteries)
Supplied accessories
AC power cord (1)
Remote control (RM-Z1S002) (1)
Design and specifications are subject to change without
notice.
CSD-MP100
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270˚C during
repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMESSCHÉMATIQUESET LALISTE DES PIÈCESSONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
•Abbreviation
CND : Canadian model
E4 : AC 200-240V area in E model
E15 : AC 220-240V area in E model
TW : Taiwan model
AUS:Australian model
SP : Singapore model
KR : Korean model
This Compact Disc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT mark is located at the
bottom.
CLASS 1 LASER PRODUCT
LUOKAN 1 LASER LAITE
KLASS 1 LASER APPARAT
AEP, UK, E, AUS model

3
CSD-MP100
About“MP3”
What is the MP3
MP3 (MPEG 1Audio Layer-3) is a standard technology and format
for compressing a sound sequence. The file is compressed to about
1/10 of its original size.
Sounds outside the range of human hearing are compressed while
the sounds we can hear are not compressed.
Playable “MP3”files on the player
You can only play MP3 files recorded by following requirements.
Usable media
CD-Rs and CD-RWs
Usable disc format
You can use ISO 9660 Level 1, Level 2 and Joliet extension format
discs. In some cases, MP3 files that are recorded in a format other
than these formats may not play normally or the file and folder
names may not be displayed correctly.
The major specifications of the usable disc format are as follows:
•Maximum directory steps: 8
•Usable characters for a file/folder name: A - Z, a - z, 0 - 9 and
_ (underscore)
•Maximum number of characters for a file name: 16 (8) includ-
ing quotation marks and a 3-character extension code
Notes
•When naming, be sure to add the file extension “mp3” to the file
name.
•If you put the extension “mp3” to a file other than an MP3 file,
the player cannot recognize the file properly and will generate
random noise that could damage your speaker.
•The file name does not correspond to the ID tag.
The usable number of folders/files
•Maximum number of folders and files: 512 (in total)
Settings for compression software and writing software
•To compress a source for an MP3 file, we recommend setting
the transfer bit rate of the compression software to “44.1 kHz”,
“128 kbps” and “Constant Bit Rate”.
•To record up to the maximum capacity, set to the “halting of
writing”.
•To record at one time up to the maximum capacity on media that
has nothing recorded it, set to “Disc at Once”.
Notes for saving files on the media
When the disc is inserted, the player reads all the files on that disc.
If there are many folders or non-MP3 files on the disc, it may take a
long time for play to begin or for the next MP3 file to start play.
Do not save unnecessary folders or files other than MP3 ones in the
disc to be used for MP3 listening.
We recommend that you do not save other types of files
or unnecessary folders on a disc that has MP3 files.
About“ID3 tag”
ID3 tag is a format for adding certain information (track title, artist
name and album title, etc.) to MP3 files.
This player conforms to Version 1.1 of the ID3 tag information,
“track title”, “artist name” and “album title” can be displayed.
Note
If you use a version other than 1.1, ID3 tag information will not be
displayed correctly.

4
TABLE OF CONTENTS
1. SERVICING NOTES......................................................... 5
2. GENERAL............................................................................ 6
3. DISASSEMBLY
3-1. Cabinet Rear Assy ............................................................... 9
3-2. Chassis CD Assy ................................................................. 9
3-3. Main Board, Tape Board ................................................... 10
3-4. Tape Mechanism Deck ...................................................... 10
3-5. Cassette Lid Assy .............................................................. 11
3-6. Display Board ................................................................... 11
3-7. CD Block Assy .................................................................. 12
3-8. CD/MP3 Board ................................................................. 12
3-9. Optical Pick-up ................................................................. 13
3-10. Tuner Board....................................................................... 13
3-11. Power Trans Board ............................................................14
3-12. HRP301, HE301, Pinch Roller Arm Assy......................... 14
3-13. M301, Belt ........................................................................15
4. MECHANICAL ADJUSTMENTS............................... 16
5. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 16
Tuner Section......................................................................... 17
CD Section ............................................................................ 18
6. DIAGRAMS
6-1. IC Pin Description............................................................. 19
6-2. Block Diagram – CD Section –......................................... 23
6-3. Block Diagram – Main Section –...................................... 24
6-4. Circuit Boards Location .................................................... 25
6-5. Printed Wiring Board – CD Section –............................... 26
6-6. Schematic Diagram – CD Section –.................................. 28
6-7. Printed Wiring Board – Tuner Section – ........................... 29
6-8. Schematic Diagram – Tuner Section – .............................. 30
6-9. Printed Wiring Board – Main Section – ............................ 31
6-10. Schematic Diagram – Main Section (1/2) – ...................... 32
6-11. Schematic Diagram – Main Section (2/2) – ...................... 33
6-12. Printed Wiring Board – Tape Section –............................. 34
6-13. Schematic Diagram – Tape Section – ...............................35
6-14. Printed Wiring Board – Display Section – ........................ 36
6-15. Schematic Diagram – Display Section –........................... 37
6-16. Printed Wiring Boards – Power Supply Section – ............ 38
6-17. Schematic Diagram – Power Supply Section –................. 40
6-18. IC Block Diagrams............................................................ 41
7. EXPLODEDVIEWS
7-1. Main Board Section ..........................................................44
7-2. Cabinet Front (1) Section ..................................................45
7-3. Cabinet Front (2) Section ..................................................46
7-4. Chassis CD Section ...........................................................47
7-5. Cabinet Rear Section......................................................... 48
7-6. Tape Mechanism Section ..................................................49
7-7. CD Mechanism Section ....................................................50
8. ELECTRICAL PARTS LIST......................................... 51
CSD-MP100

5
CSD-MP100
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the lid (CD), use
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1
SECTION 1
SERVICING NOTES
PRECAUTIONTO REPLACE OPTICAL BLOCK
(KSM-213RDP)
solder
Bodyorclotheselectrostaticpotentialcouldruinlaserdiode
in the optical block.Be sure ground body and workbench,
and use care the clothes do not touch the diode.
1) After the connection, remove solder shown in the right figure.

6
CSD-MP100 SECTION 2
GENERAL This section is extracted
from instruction manual.
PAUSE
STOP/EJECT FF REW PLAY REC

7
CSD-MP100

8
CSD-MP100
•The equipment can be removed using the following procedure.
SECTION 3
DISASSEMBLY
3-1. CABINET REAR ASSY
(Page 9)
3-2. CHASSIS CD ASSY
(Page 9)
SET
3-3. MAIN BOARD,
TAPE BOARD
(Page 10)
3-5. CASSETTE LID ASSY
(Page 11)
3-10. TUNER BOARD
(Page 13)
3-4. TAPE MECHANISM DECK
(Page 10)
3-6. DISPLAY BOARD
(Page 11)
3-11. POWER TRANS BOARD
(Page 14)
3-7. CD BLOCK ASSY
(Page 12)
3-13. M301, BELT
(Page 15) 3-12. HRP301, HE301, PINCH ROLLER ARM ASSY
(Page 14)
3-8. CD/MP3 BOARD
(Page 12)
3-9. OPTICAL PICK-UP
(Page 13)

9
CSD-MP100
3-2. CHASSIS CD ASSY
3-1. CABINET REAR ASSY
Note : Follow the disassembly procedure in the numerical order given.
1 knob RTRY VOL
2 cover (BATT)
9 cabinet rear assy
MAIN board
7 CN101
8 CNP1
4 two screws
(+
BVTP 3 x 25 )
3 two screws
(+
BVTP 3 x 10 )
5 three screws
(+
BVTP 3 x 25 )
6
5 chssis CD assy
cabinet front assy
1 CN604
MAIN board
4
3 two screws
(+
BVTP 3 x 10
)
2 CN401
(flat type)

10
CSD-MP100
3-4.TAPE MECHANISM DECK
3-3. MAIN BOARD,TAPE BOARD
1 CN201
8 CN301
2 CN302
3 CN601
(flat type)
4 CN603
(flat type)
5 CN602
(flat type)
6 screw
(+ BVTP 3 x 10 )
9 two screws
(+ BVTP 2.6 x 10
)
qa two screws
(+ BVTP 2.6 x 10 )
qd TAPE board
qf MAIN board
qs two holders (PWB)
0 Removal the solders.
7
4 tape mechanism deck
cabinet front assy
1
2 two screws
(+
BVTP 2.6 x 10
)
3 two screws
(+
BVTP 2.6 x 10 )

11
CSD-MP100
3-6. DISPLAY BOARD
3-5. CASSETTE LID ASSY
2 damper
3 cassette lid assy cabinet front assy
4 cassette spring T
1 screw
(+
BVTP 2.6 x 10
)
3 DISPLAY board
1 three screws
(+ KTP 3 x 10
)
2 three screws
(+ KTP 3 x 10 )

12
CSD-MP100
3-8. CD/MP3 BOARD
3-7. CD BLOCK ASSY
3 CD cover
chassis CD assy
6 CD block assy
two claws
two claws
5 two vibration proof rubbers
4 two vibration proof rubbers
2 two screws
(
2.6 x 10 )
1 two screws
(
2.6 x 10 )
1 screw
(+
BVTT 2 x 6 )
2 Remove the two solderings of motor.
3 Remove the two solderings of motor.
4 connector
5 CD/MP3 board
CD mechanism

13
CSD-MP100
3-9. OPTICAL PICK-UP
3-10.TUNER BOARD
1 gear (A)
claw
5 sled shaft
6 optical pick-up
4
2 screw
(+
PWB tapping (M2) )
3 screw
(+
PWB tapping (M2) )
1 screw
(+ B 2.6 x 10
)
2 telescopic antenna
3 screw
(+ BVTP 3 x 10 )
4 two claws
6 TUNER board
holder (PWB TU)
5

14
CSD-MP100
3-12. HRP301, HE301, PINCH ROLLER ARM ASSY
3-11. POWER TRANS BOARD
1 CN102
2 CN103
3 four screws
(+
BVTP 3 x 20 )
5 two screws
(screw (2.6))
6 POWER TRANS board
4 transformer shield
1 pinch roller arm ass
y
2 HE301
(ERASE head)
claw
claw
6 HRP301 (REC/PB head)
5 screw
(azimuth)
3 screw
(+B bind)
4 lug plate
7 azimuth spring

15
CSD-MP100
3-13. M301, BELT
1 screw (MB)
5 two screws
(motor coller)
2
6
M301
(sub motor assy)
motor bracket
3 RF belt
4 main belt

16
CSD-MP100
SPEAKER, L-CH (SP301)
set
4
Ω
test tape
WS-48A
(3 kHz, 0 dB)
digital frequency
counter
TAPE SECTION 0 dB = 0.775V
• Standard Output Level
Output terminal SPEAKER L-CH (SP301)
load impedance 8 Ω
output signal level 0.25 V (–10 dB)
•TestTape
Type Signal Used for
WS-48A 3 kHz, 0 dB tape speed adjustment
Tape Speed Adjustment
Procedure:
Mode: playback
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagne-
tizer. (Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power
supply voltage (9V) unless otherwise noted.
Torque Measurement
Mode Torque meter Meter reading
2.95 – 6.86 mN • m
FWD CQ-102C (30 – 70 g • cm)
(0.42 – 0.97 oz • inch)
FWD 0.15 – 0.53 mN • m
Back Tension CQ-102C (1.5 – 5.5 g • cm)
(0.021 – 0.076 oz • inch)
more than 5.88 mN • m
FF CQ-201B (more than 60 g • cm)
(more than 0.83 oz • inch)
more than 5.88 mN • m
REW CQ-201B (more than 60 g • cm)
(more than 0.83 oz • inch)
TapeTension Measurement
Mode Tension meter Meter Reading
FWD CQ-403A more than 100 g
(more than 3.53 oz)
SECTION 5
ELECTRICAL ADJUSTMENTS
SECTION 4
MECHANICAL ADJUSTMENTS
Adjust so that the value on the digital frequency counter is
3,000 Hz.
Specification Value:
Digital frequency counter
2,940 to 3,060 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,970 to 3,030 Hz.
Adjustment Location:
Tape speed adjustment
control inside motor

17
CSD-MP100
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz
FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 87.5 MHz 108 MHz
Reading on Digital voltmeter 1.3 ± 0.3 V 3.0 ± 0.2 V
Adjustment Part <confirmation> L2
FMTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
87.5 MHz 108 MHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
530 kHz 1,710 kHz
(US, CND) (US, CND)
531 kHz 1,611 kHz
(Except US, CND) (Except US, CND)
Reading on
Digital voltmeter 1.0 ± 0.05 V 5.3 ± 0.7 V
Adjustment Part L4 <confirmation>
AMTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 CT3
620 kHz (US, CND) 1,400 kHz (US, CND)
621 kHz (Except US, CND) 1,404 kHz (Except US, CND)
digital
voltmeter
100 kΩ
TP (VT)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
TP (FM IN)
FM RF signal
generator
0.01
µ F
set
TUNER SECTION 0 dB = 1 µV
•FM Section
Setting:
BAND button: FM
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
•AM Section
Setting:
BAND button: AM
30% amplitude
modulation by
400 Hz signal
•Connecting Level Meter (FM and AM)
•Connecting DigitalVoltmeter (FM and AM)
•Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
Adjustment Location: See page 18.
SPEAKER, L-CH (SP301)
set
4
Ω
level meter
(range: 0.5–5 V ac
)

18
CSD-MP100
Q701
R708
R709
R711
R729
R730
R745
C701
C705
C706
C740
C710
C711
C712
C713 C714
C716
C717
C718
C719
C720
C721
R710
R755
R759
R724
R725
R726
R727
R728
R73
R7
3
R
C708
C746
C742
C743
C744
C761
C762
C763
C
7
R763
R764
R723
IC
701
C707
C715
C709
— CD/MP3 board (side B) —
TP
(RF) TP (VREF)
Adjustment Location:
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC701 pin 4and pin qa (or
TP (RF) and TP (VREF)).
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the NX(CD) button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
Test Point:
RF level :
0.85 ±0.2 Vp-p
VOLT/DIV : 50 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope forAC range
and raise vertical sensitivity.
L4
TP (FM IN)
(CONDUCTOR SIDE)
CT1
IC1 IC2
CT3
L1
L2
T2
T1
L3
– MAIN board (component side) –
L4
AM
FREQUENCY
COVERAGE
ADJUSTMENT
L2
FM
FREQUENCY
COVERAGE
ADJUSTMENT
CT3, L3
AM
TRACKING
ADJUSTMENT
CT1, L1
FM
TRACKING
ADJUSTMENT
T1
AM
IF
ADJUSTMENT
T2
FM
IF
ADJUSTMENT
TP (VT)
(CONDUCTOR SIDE)

19
CSD-MP100
1LRSY I CD L/R clock input
2ADDATA O Audio data output
3ADBCK O Audio bit clock output
4ADLRCK O Audio L/R clock output
5C2FIN I CD C2 error flag input
6VSS — Ground
7CKIN I System clock (16.9344 MHz) input
8VSS — Ground
9CKOUT O Clock (384Fs) output for external DF/DAC.
10 VSS — Ground
11 DVDD1 — Digital power supply pin for I/O.
12 PW I CD subcode data serial input
13 SBSY I CD subcode block synchronized signal input
14 SFSY I CD subcode frame synchronized signal input
15 SBCK O Serial clock output for CD subcode transfer. (Not used. (Open))
16 AVDD — Analog (PLL) power supply pin
17 VPRFR — VCO oscillation range setting pin
18 VCOC I VCO control voltage input
19 VPDO O VCO charge pump output
20 AVSS — Analog ground
21 DVDD2 — Power supply pin for internal logic.
22 VSS — Ground
23 to 30 MDATA0 to 7 I/O DRAM data bus 0 to 7
31 DVDD3 — Digital power supply pin for I/O.
32 VSS — Ground
33 to 40 MDATA8 to 15 I/O DRAM data bus 8 to 15
41 RASB O Row Address Strobe signal output (L: active)
42 WEB O Data Write Enable signal output (L: active)
43 CASLB O Column Address Strobe signal output (for lower byte, L: active)
44 CASUB O Column Address Strobe signal output (for upper byte, L: active)
45 OEB O Output enable signal output (L: active)
46 to 49 MADRS12 to 9 O DRAM address output 12 to 9 (Not used. (Open))
50 MADRS8 O DRAM address output 8
51 DVDD4 — Digital power supply pin for I/O.
52 VSS — Ground
53 to 60 MADRS7 to 0 O DRAM address output 7 to 0
61 DVDD5 — Power supply pin for internal logic.
62 VSS — Ground
63 STREQ I/O MP3 data request flag output (H: active)/DRAM data request flag input (H: active)
(Not used. (Open))
64 STCK I/O MP3 data transfer clock input/DRAM data transfer clock output (Not used. (Open))
65 STDAT I/O MP3 data serial input/DRAM data serial output (Not used. (Open))
66 FSYNC O MP3 frame synchronized signal input (H: active) (Not used. (Open))
67 CRCF O CDROM-CRC flag output (H: active)/DRAM data output enable signal output
(H: active) (Not used. (Open))
68 DVDD6 — Power supply pin for internal logic.
69 VSS — Ground
70 WOK I DRAM write OK input (at CD-DA, H: active)/DRAM data request flag input
(at CD-ROM, H: active)
SECTION 6
DIAGRAMS
6-1. IC PIN DESCRIPTIONS
• IC1001 LC78684E (MP3 DECODER, CD-ROM DECODER, ANTI-SHOCK CONTROLLER) (CD/MP3 BOARD)
Pin No. Pin Name I/O Pin Description

20
CSD-MP100
Pin No. Pin Name I/O Pin Description
71 CNTOK O Data connecting point detection completion flag output (at CD-DA, H: active)/DRAM
data serial output (at CD-ROM, H: active) (Not used. (Open))
72 OVF O DRAM write discontinue flag output (at CD-DA, H: active)/DRAM data transfer
clock output (at CD-ROM, H: active) (Not used. (Open))
73 CMDOUT O Command serial data output (Nch open drain output pin)
74 CMDIN I Command serial data input
75 CL I Command serial clock input
76 CE I Command enable input (H: active)
77 INTB O Interrupt signal output (L: active)
78 RESB I System reset input (L: active)
79 DATAIN I CD serial data input
80 DATACK I CD bit clock input