Sony HCD-GT111 / HCD-GT222 / HCD-GT444 / HCD-GT555 / MHC-GT111 / MHC-GT111BP / MHC-GT222 / MHC-GT444 / MHC-GT555 Service Manual ▷ View online
HCD-GT111/GT222/GT444/GT555
17
TUNER STEP CHANGE
(Except GT111: AEP, Russian/GT222: AEP, Russian/
GT444: AEP, Ruissian, UK/GT555: Russian models)
(Except GT111: AEP, Russian/GT222: AEP, Russian/
GT444: AEP, Ruissian, UK/GT555: Russian models)
The step interval of AM channels can be toggled between 9 kHz
and 10 kHz. This mode is not available for Saudi Arabian, Euro-
pean and Russian models.
Procedure:
1. Press
and 10 kHz. This mode is not available for Saudi Arabian, Euro-
pean and Russian models.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Press [TUNER/BAND] button repeatedly to select the “AM”.
3. Press
3. Press
[
?/1
] button to turn off the system.
4. Press [ENTER] button and [
?/1
] button simultaneously. The
system turns on automatically. The message “AM 9K STEP”
or “AM 10K STEP” appears on the fl uorescent indicator tube
and thus the channel step is changed.
or “AM 10K STEP” appears on the fl uorescent indicator tube
and thus the channel step is changed.
CD SERVICE MODE
This mode let you move the CD sled motor freely. Use this mode
when you want to clean the optical pick-up.
Procedure:
1. Press
when you want to clean the optical pick-up.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Press [CD] button to select CD function.
3. Press [
3. Press [
x
] button, [METER MODE] button, and [OPEN/
CLOSE] button simultaneously.
4. The CD service mode is activated. The message “SERVICE
MODE” appears on the fl uorescent indicator tube.
5. With the disc in stop status, press [
M] to move the optical
pick-up to outside track, or press [
m] to move to inside track.
The message “SLED OUT” or “SLED IN” appears on the fl uo-
rescent indicator tube.
rescent indicator tube.
6. To turn on or off the laser, press [
>] button. The message
“LD ON” or “LD OFF” appears on the fl uorescent indicator
tube.
tube.
7. To release from this mode, press [
?/1
] button.
CD AGING MODE
This mode can be used for operation check of CD section.
If an error occurs, the aging operation would stops and the status is
displayed. If there were no error occurs, the aging operation would
continue repeatedly.
Procedure:
1. Press
If an error occurs, the aging operation would stops and the status is
displayed. If there were no error occurs, the aging operation would
continue repeatedly.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Select CD function.
3. Load three discs on the disc tray.
4. Press [PLAY MODE] button on the remote repeatedly to select
3. Load three discs on the disc tray.
4. Press [PLAY MODE] button on the remote repeatedly to select
the “ALL DISCS” mode, and press the [REPEAT] button on
the remote repeatedly to select “REPEAT OFF” mode.
the remote repeatedly to select “REPEAT OFF” mode.
5. Press
[
x
] button, [METER MODE] button and [DISC SKIP/
EX-CHANGE] button simultaneously.
6. Aging operation is started.
7. To release from this mode, press [
7. To release from this mode, press [
?/1
] button or disconnect the
power cord to turn off the system.
• Aging mode sequence:
CD ERROR CODE MODE
Display the CD error code when an error occurred
Procedure:
1. Press
Procedure:
1. Press
[
x
] button, [METER MODE] button and [DISC 1] but-
ton simultaneously to enter the error code display mode.
2. The
fl uorescent indicator tube displays the number of total er-
ror.
3. Each time [
m] or [M] button is pressed, display change as
below.
START (from
Disc 1)
Disc Chucking
TOC Reading
Play first track for 2
seconds
Play last track for 2
seconds
EX-CHANGE open/
close
Open the disc tray
Disc skip
Close the disc tray
Change the disc tray
HCD-GT111/GT222/GT444/GT555
18
• Display of no disc errore
D*$$%%&&##00
D* : The number of no disc error (“0” is latest one)
(Press [
>] button to display next error)
$$ : Error type
01 : Focus error
02 : GFS error
03 : Setup error
%% : Not used
&& :
&& :
00 : No disc judgment without chucking retry.
01 : No disc judgment after chucking retry.
## : The state when judged as no disc
01 : Stop
02 : Setup
03 : TOC reading
04 : Access
05 : Playback
06 : Pause
07 : Manual search (Play)
08 : Manual search (Pause)
CD REPEATS 5 LIMIT OFF MODE
The number of repeat for CD playback is 5 times when the repeat
mode is “REPEAT ALL”. This mode enables CD to repeat play-
back for limitless times.
Procedure:
1. Press
mode is “REPEAT ALL”. This mode enables CD to repeat play-
back for limitless times.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Select
CD
function.
3. Press
[
x] button, [CD] button and [DISC 1] button simultane-
ously to enter the CD repeat 5 limit off mode and the fl uores-
cent indicator tube displays “LIMIT OFF”.
cent indicator tube displays “LIMIT OFF”.
4. To release from this mode, operate the cold reset. (Refer to the
“COLD RESET”)
CD SHIP MODE (WITH MEMORY CLEAR)
This mode moves the optical pick-up to the position durable to
vibration and clears all data including preset data stored in the EE-
PROM to initial conditions during the next AC-In. Use this mode
when returning the set to the customer after repair.
Procedure:
1. Press
vibration and clears all data including preset data stored in the EE-
PROM to initial conditions during the next AC-In. Use this mode
when returning the set to the customer after repair.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Select
CD
function.
3. Press
[
x] button, [DISC 1] button and [
?/1
] button simultane-
ously. The system turns off automatically.
4. After the “STANDBY” blinking display fi nishes, a message
“MECHA LOCK” is displayed on the fl uorescent indicator
tube and the CD ship mode is set.
tube and the CD ship mode is set.
CD SHIP MODE (WITHOUT MEMORY CLEAR)
This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Select
CD
function.
3. Press [DISC SKIP/EX-CHANGE] button and [
?/1
] button si-
multaneously. The system turns off automatically.
4. After the “STANDBY” blinking display fi nishes, a message
“MECHA LOCK” is displayed on the fl uorescent indicator
tube and the CD ship mode is set.
tube and the CD ship mode is set.
4. To clear the error record, operate the cold reset. (Refer to the
“COLD RESET”)
5. To release from this mode, press the [
?/1
] button or disconnect
the power plug to turn off the system.
• Display of total error
EM**ED**
EM** : The number of mechanical errors.
ED** : The number of no disc errors after chucking the disc.
ED** : The number of no disc errors after chucking the disc.
• Display of mechanical errors
M*$$%%&&##00
M* : The number of mechanical error (“0” is latest one)
(Press [
>] button to display the next error)
$$ : Not used
%% : Loading related error (Second fi gure is not used)
%% : Loading related error (Second fi gure is not used)
D : Stop by the problem other than mechanical problem
while
closing.
E : Stop by the problem other than mechanical problem
while
opening.
C : Stop by the problem other than mechanical problem
while chucking up.
F : Stop by the problem other than mechanical problem
while chucking down.
&& : Emerging error
01 : Stop while chucking up.
02 : Stop while chucking down.
03 : Time-out of EX-CHANGE open.
05 : Time-out of EX-CHANGE close.
## : Not used
Display of
Total Error
Total Error
Display of
Mechanical
Errors
FF button
AMS (+)
button
AMS (+)
button
AMS (–)
button
AMS (–)
button
FR button
FF button
FR button
Display of
No Disc
Errors
HCD-GT111/GT222/GT444/GT555
19
CD TRAY LOCK MODE
This mode let you lock the disc tray. When this mode is activated,
the disc tray will not open when [OPEN/CLOSE] button or [DISC
SKIP/EX-CHANGE] button is pressed. The message “LOCKED”
will be displayed on the fl uorescent indicator tube.
Procedure:
1. Press
the disc tray will not open when [OPEN/CLOSE] button or [DISC
SKIP/EX-CHANGE] button is pressed. The message “LOCKED”
will be displayed on the fl uorescent indicator tube.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Select CD function.
3. Press
3. Press
[
x] button and [OPEN/CLOSE] button simultaneously
and hold down until “LOCKED” or “UNLOCKED” displayed
on the fl uorescent indicator tube (around 5 seconds).
on the fl uorescent indicator tube (around 5 seconds).
FACTORY PRESET
This mode is use to load all the factory use preset frequencies into
FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM 1-
FM 20 and AM 1-AM10 are set to the minimum frequency.
Procedure:
1. Press
FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM 1-
FM 20 and AM 1-AM10 are set to the minimum frequency.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Press [TUNER/BAND] button, [
x] button, and [DISC 1] but-
ton simultaneously and the message “FACTORY” appears
on the fl uorescent indicator tube. The function is changed to
TUNER automatically.
on the fl uorescent indicator tube. The function is changed to
TUNER automatically.
VACS DISPLAY
This mode is used to check the VACS level.
Procedure:
1. Press
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Press [ERASE] button, [
x] button and [ENTER] button si-
multaneously.
3. The
fl uorescent indicator tube displays “VACSA”. “A” repre-
sents Conventional VACS (Triggered by signal level)
4. To release from this mode, do the step 2 again.
METER SWITCH TOUCH COUNT DISPLAY
This mode is used to display the total count of meter pointer touch
initial switch and max switch.
Procedure:
1. Press
initial switch and max switch.
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Press
[
x] button, [ENTER] button and [DISPLAY] button si-
multaneously.
3. The
fl uorescent indicator tube displays “IxxxxxMyyyyy”.
“I” represents the Initial Switch touch.
“xxxxx” represents the total count of Initial Switch touch.
(Maximum Value of “xxxxx” = 65535)
“M” represents the Max Switch touch.
“yyyyy” represents the total count of Max Switch touch.
(Maximum Value of “yyyyy” = 65535)
“xxxxx” represents the total count of Initial Switch touch.
(Maximum Value of “xxxxx” = 65535)
“M” represents the Max Switch touch.
“yyyyy” represents the total count of Max Switch touch.
(Maximum Value of “yyyyy” = 65535)
4. To release from this mode, do the step 2 again. The fl uorescent
indicator tube displays “MODE OUT”.
METER TEST MODE
This mode is used to check the meter device.
Procedure:
1. Press
Procedure:
1. Press
[
?/1
] button to turn on the system.
2. Press
[
x] button, [ENTER] button and [METER MODE] but-
ton simultaneously.
3. Meter Backlight LEDs, Meter Pointer LEDs, Power Illumina-
tor LEDs and fl uorescent indicator tube are lighted up.
4. When you want to perform count total step from Initial Switch
to Max Switch operation mode, press [
M] button. The me-
ter pointer will move from Initial Switch to Max Switch and
fi nally move back to the middle position. The total step count
information appears on the fl uorescent indicator tube. “xxx
STP yy” is shown.
fi nally move back to the middle position. The total step count
information appears on the fl uorescent indicator tube. “xxx
STP yy” is shown.
“xxx” represents the total step.
(Value of “xxx” should between 430 steps to 470 steps)
“yy” represents the status of total step count.
(If total step between 430 steps to 470 steps, “yy” is OK,
Else “yy” is NG)
5. When you want to perform count total step from Max Switch
(Value of “xxx” should between 430 steps to 470 steps)
“yy” represents the status of total step count.
(If total step between 430 steps to 470 steps, “yy” is OK,
Else “yy” is NG)
5. When you want to perform count total step from Max Switch
to Initial Switch operation mode, press [
m] button. The me-
ter pointer will move from Max Switch to Initial Switch and
fi nally move back to the middle position. The total step count
information appears on the fl uorescent indicator tube. “xxx
STP yy” is shown.
fi nally move back to the middle position. The total step count
information appears on the fl uorescent indicator tube. “xxx
STP yy” is shown.
“xxx” represents the total step.
(Value of “xxx” should between 430 steps to 470 steps)
“yy” represents the status of total step count.
(If total step between 430 steps to 470 steps, “yy” is OK, else
(Value of “xxx” should between 430 steps to 470 steps)
“yy” represents the status of total step count.
(If total step between 430 steps to 470 steps, “yy” is OK, else
“yy” is NG).
6. To release from this mode, do the step 2 again. The fl uorescent
indicator tube displays “TST MODE OUT”.
HCD-GT111/GT222/GT444/GT555
20
SECTION 5
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
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 demag-
netizer. (Do not bring the head magnetizer close to the erase
head.)
head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to the
4. After the adjustments, appiy suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
• Torque
Measurement
Mode
Torque Meter
Meter Reading
FWD
CQ-102AS
2.0 – 8.0 mN • m
(20 to 80 g • cm)
(0.28 – 1.12 oz • inch)
FWD
Back Tension
Back Tension
CQ-102C
0.15 – 0.6 mN • m
(1.5 to 6 g • cm)
(0.021 – 0.083 oz • inch)
FF
CQ-201AS
5 – 17.7 mN • m
(50 to 177 g • cm)
(0.7 – 2.48 oz • inch)
REV
CQ-201B
5 – 17.7 mN • m
(50 to 177 g • cm)
(0.7 – 2.48 oz • inch)
• Tape Tension Measurement
Mode
Tension Meter
Meter Reading
FWD
CQ-403A
more than 80 g
(more than 2.82 oz)
Click on the first or last page to see other HCD-GT111 / HCD-GT222 / HCD-GT444 / HCD-GT555 / MHC-GT111 / MHC-GT111BP / MHC-GT222 / MHC-GT444 / MHC-GT555 service manuals if exist.