Sony HCD-EC68 / HCD-EC78 / MHC-EC68 / MHC-EC78 Service Manual ▷ View online
HCD-EC68/EC78
5
CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION
MAIN board
MAIN board
C626 (EC68/EC78: E2, E3, E51, MX, AR),
C678 (EC78: AEP, RU)
C678 (EC78: AEP, RU)
C622 (EC68/EC78: E2, E3, E51, MX, AR),
C677 (EC78: AEP, RU)
C677 (EC78: AEP, RU)
In checking the MAIN board, make a capacitor discharge
of C622, C676, C677 and C678 for electric shock prevention.
of C622, C676, C677 and C678 for electric shock prevention.
800
Ω/2W
800
Ω/2W
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)
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)
2-688-622-01 BELT (MAIN)
HOW TO DISTINGUISH TAPE MECHANISM DECK (EXCEPT EC68: UK MODEL)
Two kinds of tape mechanism decks installed by this set exist.
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.
below.
motor
Metal part: TCM-J1
Mold part: CS-21SC-900TP
Mold part: CS-21SC-900TP
tape deck
• Abbreviation
AR :
AR :
Argentina
model
E2
: 120V AC area in E model
E3
: 240V AC area in E model
E51
: Chilean and Peruvian models
MX
: Mexican model
RU :
Russian
model
HCD-EC68/EC78
6
SECTION 2
GENERAL
This section is extracted
from instruction manual.
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
1)
TAPE
.
Component
2)
(connected
using an audio cord)
FUNCTION
repeatedly until “AUDIO
IN” appears.
IN” appears.
1)
Except for the UK model.
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.
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)
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)
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)
Press CD (or FUNCTION repeatedly)
.
2
Place a disc.
Press
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
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.
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
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
Press
(play) (or CD (play) on the unit)
.
To exchange other discs during playback, press
EX-CHANGE
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
MP3 disc
(select folder) +/–
.
Select a track or file
/ (go back/go forward)
(or
(or
/ on the unit)
.
Find a point in a
track or file
track or file
Hold down
/ (rewind/fast
forward)
during playback, and
release the button at the desired
point.
point.
Select Repeat Play
REPEAT
repeatedly until
“REP” or “REP1” appears.
To change the play mode
Press 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 “
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 “
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.
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.
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.
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.
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
Press TUNER/BAND
repeatedly.
2
Select the tuning mode.
Press TUNING MODE
Press TUNING MODE
repeatedly until “AUTO”
appears.
3
Tune in the desired station.
Press +/– (or TUNING +/– on the unit)
Press +/– (or TUNING +/– on the unit)
.
Scanning stops automatically when a station is tuned
in, and then “TUNED” and “ST” (for stereo programs)
appear.
in, and then “TUNED” and “ST” (for stereo programs)
appear.
To stop automatic scanning
Press
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
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)
+/– on the unit)
repeatedly to tune in the desired
station.
To reduce static noise on a weak FM stereo
station
Press FM MODE
station
Press FM MODE
repeatedly until “MONO” appears
to turn off stereo reception.
Playing a tape (Except for the UK
model)
model)
1
Select a tape function.
Press TAPE (or FUNCTION repeatedly)
Press TAPE (or FUNCTION repeatedly)
.
2
Insert a tape.
Press
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.
slack in the tape to avoid damaging the tape or the
tape deck.
3
Start playback.
Press
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*
forward*
/ (rewind/fast forward)
on the unit.
* Be sure to press
(stop/eject) on the unit after the tape has
been wound or rewound to the end.
Note
Do not turn off the system during playback or recording.
Changing the display
To
Press
Change
information on the
display*
information on the
display*
DISPLAY
repeatedly when the
system is turned on.
Change Display
mode (See below.)
mode (See below.)
DISPLAY
repeatedly when the
system is turned off.
* For example, you can view CD/MP3 disc information, such as;
track or file number during normal play.
track or file name (“ ”) during normal play.
artist name (“ ”) during normal play.
album or folder name (“
track or file name (“ ”) during normal play.
artist name (“ ”) during normal play.
album or folder name (“
”) during normal play.
total playing time while the player is stopped.
The system offers the following display modes.
Display mode
When the system is off,
Power Saving
Mode
Mode
1)
The display is turned off to conserve
power. The timer and clock continue
to operate.
power. The timer and clock continue
to operate.
Clock
2)
The clock is displayed.
1)
You cannot set the clock in Power Saving Mode.
2)
The clock display automatically turns to Power Saving Mode after
eight seconds.
eight seconds.
Notes on the display information
Characters that cannot be displayed appear as “_”.
The following are not displayed;
total playing time for an MP3 disc.
remaining playing time for an MP3 file.
remaining playing time for an MP3 file.
The following are not displayed correctly;
elapsed playing time of an MP3 file encoded using VBR (variable
bit rate).
folder and file names that do not follow either the ISO9660
Level 1, Level 2 or Joliet in the expansion format.
The following 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 information for MP3 files when ID3 version 1 and
ID3 tag information for MP3 files when ID3 version 1 and
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
single MP3 file).
priority when both ID3 version 1 and version 2 tags are used for a
single MP3 file).
up to 15 characters of ID3 tag information using uppercase letters
(A to Z), numbers (0 to 9), and symbols (‘< > * + , – / @ [ \ ] _).
* Except for the UK model
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.
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
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
as sunshine, fire or the like.
To set the clock
1
Turn on the system.
Press
Press
(on/standby)
to turn on the system.
2
Select the clock set mode.
Press CLOCK/TIMER SET
Press CLOCK/TIMER SET
. The hour indication
flashes. If “PLAY SET” flashes, press
/
repeatedly to select “CLOCK,” and then press ENTER
.
3
Set the time.
Press
Press
/
repeatedly to set the hour, then
press ENTER
. The minute indication flashes.
Use the same procedure to set the minutes.
Note
The clock settings are lost when you disconnect the power cord or if a
power failure occurs.
power failure occurs.
*
Using optional audio components
To connect an optional headphones
Connect headphones to the PHONES jack
Connect headphones to the PHONES jack
on the
unit.
To connect an optional component
Connect additional audio source components to the
AUDIO IN jack
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.
system, and then select the AUDIO IN function.
HCD-EC68/EC78
7
Creating your own CD program
(Program Play)
(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
When programming MP3 files, press
+/–
repeatedly to select the desired folder, and then select
the desired file.
the desired file.
Selected track or file number
Total playing time of the
selected track
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
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
Press PLAY MODE
repeatedly until “PGM”
disappears while the player is stopped.
To delete the last track or file of the program
Press CLEAR
Press CLEAR
while the player is stopped.
To view program information, such as total
track number of the program
Press DISPLAY
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.
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.
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.
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 (Except for the
UK model)
UK model)
Use a TYPE I (normal) tape only.
You can record just the portions you like from a sound
source, including connected audio components.
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
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
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.”
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
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.
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
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.
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
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.
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.
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)
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.
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 /
Press /
repeatedly to set the hour, then
press ENTER
.
The minute indication flashes. Use the procedure
above to set the minutes.
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
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.
will not play.
To activate or check the timer again
Press CLOCK/TIMER SELECT
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
Repeat the same procedure as above until “OFF” appears,
and then press ENTER
.
To change the setting
Start over from step 1.
Start over from step 1.
Tip
The Play Timer setting remains as long as the setting is not cancelled
manually.
manually.
HCD-EC68/EC78
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
(Page
9)
3-3. TOP PANEL (EC68: UK MODEL)/TOP PANEL BLOCK (EXCEPT EC68: UK MODEL)
(Page
(Page
9)
3-4. TAPE MECHANISM DECK
(EXCEPT EC68: UK MODEL)
(Page
10)
3-6. FRONT
PANEL
SECTION
(Page
(Page
11)
3-5. MAIN
BOARD
(Page
10)
3-7. BACK PANEL BLOCK
(Page
(Page
11)
3-8. CD
MECHANISM BLOCK
(Page
12)
3-11. OP BASE ASSY
(KSM-213D)
(Page
(KSM-213D)
(Page
13)
3-9. BU
BLOCK
(Page
12)
SET
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