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Model
HCD-EC68W MHC-EC68W
Pages
56
Size
3.08 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-ec68w-mhc-ec68w.pdf
Date

Sony HCD-EC68W / MHC-EC68W Service Manual ▷ View online

HCD-EC68W
5
CAPACITOR  DISCHARGE  FOR  ELECTRIC  SHOCK  PREVENTION
Tape Deck Name
Tape Deck Part No.
Belt Part No.
TCM-J1
A-1527-851-A
2-670-389-01 BELT (1)
3-214-817-01 BELT (FR)
CS-21SC-900TP
1-797-575-11
2-688-621-01 BELT (R/F)
2-688-622-01 BELT (MAIN)
HOW  TO  DISTINGUISH  TAPE  MECHANISM  DECK
Two kinds of tape mechanism decks installed by this set exist. 
Please do the repair exchange after confi rming which tape mechanism deck set of the repair according to how to distinguish the fi gure 
below.
motor
Metal part: TCM-J1
Mold part: CS-21SC-900TP
tape deck
MAIN board
(Left side view)
Note:
 Please take out the side panel (L) from a set refer to DISASSEMBLY (page 9).
MAIN board
C626
C622
In checking the MAIN board, make a capacitor discharge 
of C622, and C626 for electric shock prevention. 
800
Ω/2W
800
Ω/2W
HCD-EC68W
6
SECTION  2
GENERAL
This section is extracted 
from instruction manual.
Basic Operations
Selecting a music source
Press the following buttons (or press FUNCTION 
repeatedly).
To select
Press
CD
CD .
Tuner
TUNER/BAND .
Tape
TAPE .
Component
2)
 (connected 
using an audio cord)
FUNCTION  
repeatedly until “AUDIO 
IN” appears.
2)
If the component has the AVLS (Automatic Volume Limiter System) 
or BASS BOOST function, turn off the function to avoid distorted 
sound from the speakers.
Adjusting the sound
To adjust the volume
Press VOLUME +/– (or turn the VOLUME control on 
the unit) .
To add a sound effect
To
Press
Generate a more dynamic 
sound (Dynamic Sound 
Generator X-tra)
DSGX  on the unit.
Set the sound effect
EQ .
Playing a CD/MP3 disc
1
Select the CD function.
Press CD (or FUNCTION repeatedly) .
2
Place a disc.
Press 
 (open/close)  on the unit, and place a 
disc with the label side up on the disc tray. To place 
additional discs, slide the disc tray with your finger as 
shown below.
To close the disc tray, press 
 (open/close)  on the 
unit.
Do not force the disc tray closed with your finger, as 
this may damage the unit.
3
Select a disc.
If the discs are currently stopped, press DISC SKIP 
. To change discs while in other functions, press 
DISC 1 – 3  on the unit.
4
Start playback.
Press 
 (play) (or CD  (play) on the unit) .
To exchange other discs during playback, press 
EX-CHANGE  on the unit. 
To
Press
Pause playback
 (pause) . To resume play, 
press the button again.
Stop playback
 (stop) .
Select a folder on an 
MP3 disc
 (select folder) +/– .
Select a track or file
/ (go back/go forward) 
(or 
/ on the unit) .
Find a point in a 
track or file 
Hold down 
/ (rewind/fast 
forward)  during playback, and 
release the button at the desired 
point.
Select Repeat Play
REPEAT  repeatedly until 
“REP” or “REP1” appears.
To change the play mode
Press PLAY MODE  repeatedly while the player is 
stopped. You can select normal play (no display for all 
discs or “1 DISC” for a disc or “
” for all MP3 files 
in the folder on the disc), shuffle play (“SHUF” for 
all discs shuffle, “1 DISC SHUF” for one disc shuffle 
or “
SHUF*” for folder shuffle), or program play 
(“PGM”).
* When playing a CD-DA disc, 
 (SHUF) Play performs the same 
operation as 1 DISC (SHUF) Play.
Notes on Repeat Play
All tracks or files on a disc are played repeatedly up to five times. 
You cannot select “REP” and “SHUF” (all discs shuffle) at the same 
time.
“REP1” indicates that a single track or file is repeated until you stop 
it.
Notes on playing MP3 discs
Do not save other types of tracks or files or unnecessary folders on a 
disc that has MP3 files.
Folders that have no MP3 files are skipped.
MP3 files are played back in the order that they are recorded onto 
the disc.
The system can only play MP3 files that have a file extension of 
“.MP3”.
If there are files on the disc that have the “.MP3” file extension, 
but that are not MP3 files, the unit may produce noise or may 
malfunction.
The maximum number of:
folders is 150 (including the root folder).
MP3 files is 255.
MP3 files and folders that can be contained on a single disc is 300.
folder levels (the tree structure of files) is eight.
Compatibility with all MP3 encoding/writing software, recording 
device, and recording media cannot be guaranteed. Incompatible MP3 
discs may produce noise or interrupted audio or may not play at all.
Notes on playing multisession discs
If the disc begins with a CD-DA (or MP3) session, it is recognized 
as a CD-DA (or MP3) disc, and playback continues until another 
session is encountered.
A disc with a mixed CD format is recognized as a CD-DA (audio) 
disc.
Listening to the radio
1
Select “TUNER FM” or “TUNER AM.”
Press TUNER/BAND  repeatedly.
2
Select the tuning mode.
Press TUNING MODE  repeatedly until “AUTO” 
appears. 
3
Tune in the desired station.
Press +/– (or TUNING +/– on the unit) .
Scanning stops automatically when a station is tuned 
in, and then “TUNED” and “ST” (for stereo programs) 
appear.
To stop automatic scanning
Press
 (stop) .
To tune in a station with a weak signal
If “TUNED” does not appear and the scanning does
not stop, press TUNING MODE  repeatedly until
“MANUAL” appears, and then press +/– (or TUNING
+/– on the unit)  repeatedly to tune in the desired
station.
To reduce static noise on a weak FM stereo
station
Press FM MODE  repeatedly until “MONO” appears
Playing a tape
1
Select a tape function.
Press TAPE (or FUNCTION repeatedly) .
2
Insert a tape.
Press
 (stop/eject)  on the unit, and insert the
tape into the cassette holder. Make sure there is no
slack in the tape to avoid damaging the tape or the
tape deck.
3
Start playback.
Press
 (play)  on the unit.
To
Press
Pause playback
 (pause)  on the unit. To resume
play, press the button again.
Stop playback
 (stop/eject)  on the unit.
Rewind or fast
forward*
/ (rewind/fast forward) 
on the unit.
* Be sure to press
 (stop/eject)
been wound or rewound to the  end.
Note
Changing the display
To
Press
Change
information on the
display*
DISPLAY
 repeatedly when the
system is turned on.
Change Display
mode (See below.)
DISPLAY
 repeatedly when the
* For example, you can view CD/MP3 disc information, such as;
track o
track o
”) during normal play.
artist name (“
”) during normal play.
album or folder name (“
”) during normal play.
total playing time while the player is stopped.
Power Saving
Mode
1)
to operate.
Clock
2)
1)
You cannot set the clock in Power Saving Mode.
2)
eight seconds.
Notes on the display information
Characters that cannot be displayed appear as “_”.
llowing are not displayed;
total playing time for an MP3 disc.
rema
llowing are not displayed correctly;
ela
bit rate).
folder a
Level 1, Level 2 or Joliet in the expansion format.
llowing are displayed;
total playing time for a CD-DA disc when the play mode is
“1 DISC”.
remaining playing time for a track.
ID3 tag inf
version 2 tags are used (ID3 version 2 tag information display has
priority when both ID3 version 1 and version 2 tags are used for a 
up to 15 characters of ID3 tag information using uppercase letters
(A to Z), numbers (0 to 9), and symbols (‘< > * + , – / @ [ \ ] _).
This manual mainly explains operations using the 
remote, but the same operations can also be performed 
using the buttons on the unit having the same or similar 
names.
Before using the system
To use the remote
Slide and remove the battery compartment lid , and 
insert the two R6 (size AA) batteries (supplied), 
 side 
first, matching the polarities shown below. 
Notes on using the remote
With normal use, the batteries should last for about six months.
Do not mix an old battery with a new one or mix different types of 
batteries.
If you do not use the remote for a long period of time, remove the 
batteries to avoid damage from battery leakage and corrosion.
Batteries installed devices shall not be exposed to excessive heat such 
To set the clock
1
Turn on the system.
Press 
 (on/standby)  to turn on the system.
2
Select the clock set mode.
Press CLOCK/TIMER SET 
/ 
repeatedly to select “CLOCK,” and then press ENTER 
.
3
Set the time.
Press 
/  repeatedly to set the hour, then 
press ENTER 
Use the same procedure to set the minutes.
Note
power failure occurs.
Using optional audio components
To connect an optional headphones
Connect headphones to the PHONES jack  on the 
unit.
To connect an optional component
Connect additional audio source components to the 
AUDIO IN jack  on the unit using an analog audio 
cord (not supplied). Turn down the volume on the 
system, and then select the AUDIO IN function.
PRECAUCIÓN
NO ponga un disco aquí, porque podrá ocasionar un 
malfuncionamiento del sistema.
3
Select a disc.
If the discs are currently stopped, press DISC SKIP 
. To change discs while in other functions, press 
DISC 1 – 3  on the unit.
4
Start playback.
Press 
 (play) (or CD  (play) on the unit) .
To exchange other discs during playback, press 
EX-CHANGE  on the unit. 
To
Press
Pause playback
 (pause) . To resume play, 
press the button again.
Stop playback
 (stop) .
Select a folder on an 
MP3 disc
 (select folder) +/– .
Select a track or file
/ (go back/go forward) 
(or 
/ on the unit) .
Find a point in a 
track or file 
Hold down 
/ (rewind/fast 
forward)  during playback, and 
release the button at the desired 
point.
Select Repeat Play
REPEAT  repeatedly until 
“REP” or “REP1” appears.
To change the play mode
Press PLAY MODE  repeatedly while the player is 
stopped. You can select normal play (no display for all 
discs or “1 DISC” for a disc or “
” for all MP3 files 
in the folder on the disc), shuffle play (“SHUF” for 
all discs shuffle, “1 DISC SHUF” for one disc shuffle 
or “
SHUF*” for folder shuffle), or program play 
(“PGM”).
* When playing a CD-DA disc, 
 (SHUF) Play performs the same 
operation as 1 DISC (SHUF) Play.
Notes on Repeat Play
All tracks or files on a disc are played repeatedly up to five times. 
You cannot select “REP” and “SHUF” (all discs shuffle) at the same 
time.
“REP1” indicates that a single track or file is repeated until you stop 
it.
Notes on playing MP3 discs
Do not save other types of tracks or files or unnecessary folders on a 
disc that has MP3 files.
Folders that have no MP3 files are skipped.
MP3 files are played back in the order that they are recorded onto 
the disc.
The system can only play MP3 files that have a file extension of 
“.MP3”.
If there are files on the disc that have the “.MP3” file extension, 
but that are not MP3 files, the unit may produce noise or may 
malfunction.
The maximum number of:
folders is 150 (including the root folder).
MP3 files is 255.
MP3 files and folders that can be contained on a single disc is 300.
folder levels (the tree structure of files) is eight.
HCD-EC68W
7
Creating your own CD program 
(Program Play)
Use buttons on the remote to create your own program.
1
Press CD 
 to select the CD function.
2
Press PLAY MODE 
 repeatedly until “PGM” appears 
while the player is stopped.
3
Press DISC SKIP 
 to select a disc.
4
Press 
/ (or / on the unit) 
repeatedly until the desired track number appears.
When programming MP3 files, press 
 +/– 
repeatedly to select the desired folder, and then select 
the desired file. 
Selected track or file number
Total playing time of the 
selected track
5
Press ENTER 
 to add the track or file to the 
program.
6
Repeat steps 3 through 5 to program additional 
tracks or files, up to a total of 25 tracks or files.
7
To play your program of tracks or files, press 
 (or 
CD
 on the unit) .
The program remains available until you open the disc 
tray. To play the same program again, select the CD 
function, and then press 
 (or CD  on the unit) 
.
To cancel Program Play
Press PLAY MODE  repeatedly until “PGM” 
disappears while the player is stopped.
To delete the last track or file of the program
Press CLEAR  while the player is stopped.
To view program information, such as total 
track number of the program
Press DISPLAY  repeatedly.
Presetting radio stations
You can preset your favourite radio stations and tune 
them in instantly by selecting the corresponding preset 
number. 
1
Tune in the desired station (See “Listening to the 
radio”).
2
Press TUNER MEMORY 
.
Preset number
3
Press +/– (or TUNING +/– on the unit) 
 repeatedly 
to select your desired preset number.
If another station is already assigned to the selected 
preset number, the station is replaced by the new 
stations.
4
Press ENTER 
.
5
Repeat steps 1 through 4 to store other stations.
You can preset up to 20 FM and 10 AM stations. The 
preset stations are retained for about half a day even 
if you disconnect the power cord or if a power failure 
occurs.
6
To call up a preset radio station, press TUNING 
MODE
 repeatedly until “PRESET” appears, and 
then press +/– (or TUNING +/– on the unit) 
repeatedly to select the desired preset number.
Other Operations
Recording onto a tape
You can record just the portions you like from a sound 
source, including connected audio components.
Use buttons on the unit to control tape recording.
1
Insert a recordable tape into the cassette holder 
with the side you want to record facing up.
2
Prepare the recording source.
Select the desired source to record.
Place the disc you want to record and press DISC 
SKIP  to select a disc.
When recording a folder from an MP3 disc, press 
PLAY MODE  repeatedly to select “
,” and then 
press 
 +/–  repeatedly to select the desired 
folder.
To record only your favourite CD tracks or MP3 
files in your desired order, perform steps 2 to 5 of 
“Creating your own CD program.”
3
Start recording.
Press 
 (record) , and then start playing the 
desired recording source.
The CD starts playing automatically after 10 seconds 
have passed.
If there is noise while recording from the tuner, 
reposition the appropriate antenna to reduce the 
noise.
While recording, you cannot listen to other sources.
To stop recording
Press 
 .
Tip
We recommend that you press 
 first, and then press 

 to 
avoid noise being recorded when you stop recording.
Using the timers
The system offers two timer functions. If you use both 
timers, the Sleep Timer has priority. 
Use buttons on the remote to use the timer functions.
Sleep Timer:
You can fall asleep to music. This function works even if 
the clock is not set.
Press SLEEP  repeatedly. If you select “AUTO,” the 
system automatically turns off after the current disc or 
tape stops or in 100 minutes.
If the tape deck is still playing or recording at the set 
time, the system turns off after the tape deck stops.
Play Timer:
You can wake up to CD or tuner at a preset time. 
Make sure you have set the clock.
1
Prepare the sound source.
Press VOLUME +/– (or turn VOLUME on the unit) 
 to adjust the volume.
To start from a specific CD track or MP3 file, create 
your own CD program.
2
Press CLOCK/TIMER SET 
.
3
Press 
/  repeatedly to select “PLAY SET,” 
then press ENTER 
.
“ON TIME” appears, and the hour indication flashes.
4
Set the time to start playback.
Press 
/  repeatedly to set the hour, then 
press ENTER 
.
The minute indication flashes. Use the procedure 
above to set the minutes.
5
Use the same procedure as in step 4 to set the time 
to stop playback.
6
Select the sound source.
Press 
/  repeatedly until the sound source 
you want appears, then press ENTER . The display 
shows the timer settings.
7
Press 
  to turn off the system.
If the system is on at the preset time, the Play Timer 
will not play.
To activate or check the timer again
Press CLOCK/TIMER SELECT , press 
/ 
repeatedly until “PLAY SEL” appears, then press ENTER 
.
To cancel the timer
Repeat the same procedure as above until “OFF” appears, 
and then press ENTER .
To change the setting
Start over from step 1.
Tip
The Play Timer setting remains as long as the setting is not cancelled 
manually.
HCD-EC68W
8
SECTION  3
DISASSEMBLY
• 
This set can be disassembled in the order shown below.
3-1.  DISASSEMBLY  FLOW
3-2.  SIDE PANEL (L)/(R)
 (Page 
9)
3-3.  TOP PANEL BLOCK 
 (Page 
9)
3-4.  TAPE MECHANISM DECK
 (Page 
10)
3-6. FRONT 
PANEL 
 SECTION
 (Page 
11)
3-5. MAIN 
BOARD
 (Page 
10)
3-7.  BACK PANEL BLOCK
 (Page 
11)
3-8. CD 
MECHANISM BLOCK
 (Page 
12)
3-10. OP BASE ASSY
 (KSM-213D)
 (Page 
13)
3-9. BU 
BLOCK
 (Page 
12)
3-11. BELT (DLM3A)
 (Page 
13)
SET
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