Sony HCD-GN1200D / MHC-GN1200D Service Manual ▷ View online
HCD-GN1200D
17
Remove the two solderings of motor.
MOTOR (TB) board
table motor assy (M741)
two screws
(+BTTP (M2.6))
(+BTTP (M2.6))
wire (flat type) (5core)
(CN742)
(CN742)
stopper
stopper
table
Remove the two solderings of motor.
MOTOR (LD) board
belt (loading)
loading motor assy (M751)
two screws
(+BTTP (M2.6))
(+BTTP (M2.6))
3-19. MOTOR (TB) BOARD
3-20. MOTOR (LD) BOARD
HCD-GN1200D
18
SECTION 4
TEST MODE
[PANEL TEST MODE]
• This mode is used to check the fl uorescent indicator tube,
• This mode is used to check the fl uorescent indicator tube,
LEDs, buttons, MASTER VOLUME knob, OPERATION
DIAL knob, model, destination, software version.
DIAL knob, model, destination, software version.
Procedure:
1. Press
1. Press
Y
button, [ENTER] button and [DISC 2] button
simultaneously.
2. All LEDs and segments in fl uorescent indicator tube are light-
2. All LEDs and segments in fl uorescent indicator tube are light-
ed up. All LEDs are lighted up in red color except for
C#
LED where the LED is lighted up in green color.
3. When you want to enter to the software version display mode,
press [DISC 1] button. The model information appears on the
fl uorescent indicator tube.
fl uorescent indicator tube.
4. Each time [DISC 1] button is pressed, the display changes
from MC version, GC version, SYS version, DVD version, ST
version, TC version, TA version, TM version in this order, and
returns to the model information display.
version, TC version, TA version, TM version in this order, and
returns to the model information display.
5. Press [DISC 2] button, the key check mode is activated.
6. In the key check mode, the fl uorescent indicator tube displays
6. In the key check mode, the fl uorescent indicator tube displays
“K 0 J0 V0”.
Turn the [OPERATIONAL DIAL] clockwise; “J” value in-
creases by one. Turn the [OPERATIONAL DIAL] counter-
clockwise; “J” value decreases by one. Each time a button is
pressed, “K” value increases. Press other keys on main unit to
check whether the key is detected. However, once a button has
been pressed, it is no longer taken into account.
creases by one. Turn the [OPERATIONAL DIAL] counter-
clockwise; “J” value decreases by one. Each time a button is
pressed, “K” value increases. Press other keys on main unit to
check whether the key is detected. However, once a button has
been pressed, it is no longer taken into account.
“V” value increases in the manner of 0,1, 2, 3 ... if [MASTER
VOLUME] knob is turned clockwise, or it decreases in the
manner of 0, 9, 8,7 ... if [MASTER VOLUME] knob is turned
counterclockwise.
manner of 0, 9, 8,7 ... if [MASTER VOLUME] knob is turned
counterclockwise.
7. When [EX-CHANGE/DISC SKIP] button is pressed after all
LEDs and segments in fl uorescent indicator tube light up, al-
ternate segments in fl uorescent indicator tube and LED would
light up. If you press [EX-CHANGE/DISC SKIP] button
again, another half of alternate segments in fl uorescent indica-
tor tube and LEDs would light up. Pressing [EX-CHANGE/
DISC SKIP] button again would cause all LED and segments
lights up.
ternate segments in fl uorescent indicator tube and LED would
light up. If you press [EX-CHANGE/DISC SKIP] button
again, another half of alternate segments in fl uorescent indica-
tor tube and LEDs would light up. Pressing [EX-CHANGE/
DISC SKIP] button again would cause all LED and segments
lights up.
8. To release from this mode, press three buttons in the same
manner as step 1, or disconnect the power cord.
[COMMON TEST MODE]
• This mode is used to check operations of the respective sec-
• This mode is used to check operations of the respective sec-
tions of Amplifi er and Tape.
Procedure:
• To enter Common Test Mode
1. Press
• To enter Common Test Mode
1. Press
Y
button, [ENTER] button and [DISC 3] button si-
multaneously.
2. The DVD ring indicators, the line below DVD ring indicators
and TAPE A and B indicators fl ash synchronously on the fl uo-
rescent indicator tube. The function is changed to TV.
rescent indicator tube. The function is changed to TV.
* Check
of
Amplifi er
1. Press [EQ BAND] button repeatedly until a message “GEQ
MAX” appears on the fl uorescent indicator tube. GEQ increas-
es to its maximum.
es to its maximum.
2. Press [EQ BAND] button repeatedly until a message “GEQ
MIN” appears on the fl uorescent indicator tube. GEQ decreas-
es to its minimum.
es to its minimum.
3. Press [EQ BAND] button repeatedly until a message “GEQ
FLAT” appears on the fl uorescent indicator tube. GEQ set to
fl at.
fl at.
4. When the [MASTER VOLUME] knob is turned clockwise
even slightly, the sound volume increases to its maximum and
a message “VOLUME MAX” appears on the fl uorescent indi-
a message “VOLUME MAX” appears on the fl uorescent indi-
cator tube.
5. When the [MASTER VOLUME] knob is turned counter-clock-
wise even slightly, the sound volume decreases to its minimum
and a message “VOLUME MIN” appears on the fl uorescent
indicator tube.
and a message “VOLUME MIN” appears on the fl uorescent
indicator tube.
* Tape
function
1. When a tape is inserted in Deck B and recording is started, the
function is changed to TV automatically. When [CD SYNC]
button is pressed during recording in function, ALC (Auto-
matic Logic Control) is turned on.
button is pressed during recording in function, ALC (Auto-
matic Logic Control) is turned on.
2. During recording, press
N
button will stop the recording
and the function is changed to TAPE B and rewind the tape in
Deck B until the recording start position and playback of the
tape in Deck B is started. If [REC PAUSE/ START] button is
pressed for a pause and pressed again to resume recording dur-
ing recording time, when the tape is rewind, the tape will be
rewind until the position where the pause is applied.
Deck B until the recording start position and playback of the
tape in Deck B is started. If [REC PAUSE/ START] button is
pressed for a pause and pressed again to resume recording dur-
ing recording time, when the tape is rewind, the tape will be
rewind until the position where the pause is applied.
* To release from Common Test mode
1. To release from this mode, press
1. To release from this mode, press
button.
2. The cold reset is enforced at the same time.
[COLD RESET]
• The cold reset clears all data including preset data stored in the
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
the set to the customer.
Procedure:
1. Press
1. Press
button to turn on the system.
2. Press
Y
button, [ENTER] button and
button simulta-
neously.
3. The message “COLD RESET” appears on the fl uorescent indi-
cator tube. Then, the fl uorescent indicator tube becomes blank
for while, and the set is reset.
for while, and the set is reset.
[VACS ON/OFF]
• This mode is used to switch ON and OFF the VACS (Variable
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press
1. Press
button to turn on the system.
2. Press
Y
button and [ILLUMINATION] button simultane-
ously. The message “VACS OFF” or “VACS ON” appears on
the fl uorescent indicator tube.
the fl uorescent indicator tube.
[TUNER STEP CHANGE]
• The step interval of AM channels can be toggled between 9
• The step interval of AM channels can be toggled between 9
kHz and 10 kHz.
This mode is not available for Saudi Arabia model.
Procedure:
1. Press
1. Press
button to turn on the system.
2. Press [TUNER/BAND] button repeatedly to select the “AM”.
3. Press
3. Press
button to turn off the system.
4. Press [ENTER] button and
button simultaneously. The
system will turn on automatically. The message “AM 9K
STEP” or “AM 10K STEP” appears on the fl uorescent indica-
tor tube and thus the channel step is changed.
STEP” or “AM 10K STEP” appears on the fl uorescent indica-
tor tube and thus the channel step is changed.
[DVD SHIP MODE (WITH MEMORY CLEAR)]
• This mode moves the optical pick-up to the position durable to
• This mode moves the optical pick-up to the position durable to
vibration and clears all data including preset data stored in the
RAM to initial conditions. Use this mode when returning the
set to the customer after repair.
RAM to initial conditions. Use this mode when returning the
set to the customer after repair.
HCD-GN1200D
19
Procedure:
1. Press
1. Press
button to turn on the system.
2. Select DVD function.
3. Press
3. Press
Y
button, [SOUND FLASH] button and
but-
ton simultaneously during “DVD NO DISC” condition. The
system will turn off automatically.
system will turn off automatically.
4. After the “STANDBY” blinking display fi nishes, a message
“MECHA LOCK” appears on the fl uorescent indicator tube
and the DVD ship mode is set.
and the DVD ship mode is set.
5. The Memory is clear after AC Power OFF.
[DVD SHIP MODE (WITHOUT MEMORY CLEAR)]
• This mode moves the optical pick-up to the position durable
• This mode moves the optical pick-up to the position durable
to vibration. Use this mode when returning the set to the cus-
tomer after repair.
tomer after repair.
Procedure:
1. Press
1. Press
button to turn on the system.
2. Select DVD function.
3. Press [DVD] button and
3. Press [DVD] button and
button simultaneously during
“DVD NO DISC” condition. The system will turn off auto-
matically.
matically.
4. After the “STANDBY” blinking display fi nishes, a message
“MECHA LOCK” appears on the fl uorescent indicator tube
and the DVD ship mode is set.
and the DVD ship mode is set.
[DVD TRAY LOCK MODE]
• This mode is used to lock the disc tray. When this mode is acti-
• This mode is used to lock the disc tray. When this mode is acti-
vated, the disc tray will not open when [OPEN/CLOSE] button
or [EX-CHANGE/DISC SKIP] button is pressed. The message
“LOCKED” appears on the fl uorescent indicator tube.
or [EX-CHANGE/DISC SKIP] button is pressed. The message
“LOCKED” appears on the fl uorescent indicator tube.
Procedure:
1. Press
1. Press
button to turn on the system.
2. Select DVD function.
3. Press
3. Press
Y
button and [OPEN/CLOSE] button simultaneously
and hold down until “LOCKED” or “UNLOCKED” appears
on the fl uorescent indicator tube (around 5 seconds).
on the fl uorescent indicator tube (around 5 seconds).
[TV/SAT SWITCHING]
• This mode let you switch from TV to SAT and vice-versa.
Procedure:
1. Press
• This mode let you switch from TV to SAT and vice-versa.
Procedure:
1. Press
button to turn on the system.
2. Select
TV
function.
3. Press [TV/SAT] button and
button simultaneously. The
function will change to SAT. Press the same buttons again to
change from SAT to TV.
change from SAT to TV.
[DVD COLOR SYSTEM]
• This mode let you change the color system of the video output
• This mode let you change the color system of the video output
from PAL to NTSC or vice-versa.
Procedure:
1. Press
1. Press
button to turn on the system.
2. Select DVD function.
3. Press
3. Press
button again to turn off the system.
4. Press
9
button and
button simultaneously. The sys-
tem will turn on automatically.
5. The message “COLOR PAL” or “COLOR NTSC” appears on
the fl uorescent indicator tube.
[REMOTE COMMANDER DISABLE MODE]
• This mode let you disable the remote commander reception.
• This mode let you disable the remote commander reception.
When this mode is activated, the system will not response if
the button on the remote commander is pressed. The message
“Remote Disable” appears on the fl uorescent indicator tube.
the button on the remote commander is pressed. The message
“Remote Disable” appears on the fl uorescent indicator tube.
This mode is essential for conducting test and repairing when
no interruption from the other remote commander is expected.
This mode is cancelled automatically when the AC power sup-
ply is turned off.
no interruption from the other remote commander is expected.
This mode is cancelled automatically when the AC power sup-
ply is turned off.
Procedure:
1. Press
1. Press
button to turn on the system.
2. Press
Y
button, [FLANGER] button and [DISC 2] button
simultaneousl untill“RemoteDisable” or “RemoteEnable” ap-
pears on the fl uorescent indicator tube.
pears on the fl uorescent indicator tube.
[TCM OFFLINE MODE]
• This mode is used to prevent the system from turning off au-
• This mode is used to prevent the system from turning off au-
tomatically when TCM is not connected. Therefore, measure-
ments can be done even when TCM is not connected during
production.
ments can be done even when TCM is not connected during
production.
• Procedure:
1. When the system is turned off, press [EQ BAND] button,
[TAPE A/B] button and
button simultaneously. The sys-
tem will turn on automatically.
2. The message “TCM OFFLINE” will appears on the fl uores-
cent indicator tube.
• To release from TCM Offl ine Mode, perform “COLD RESET”
or turn off the power supply.
[DVD FIRMWARE DISPLAY]
• This mode is used to display the DVD fi rmware version.
• This mode is used to display the DVD fi rmware version.
• Procedure:
1. Press
1. Press
button to turn on the system.
2. Press [DVD] button to switch to DVD function.
3. Press
3. Press
button again to turn off the system.
4. Press
Y
button and
button.
The system turns on automatically.
5. The version of DVD fi rmware appears on the TV screen.
5. The version of DVD fi rmware appears on the TV screen.
[DVD OFFLINE]
• This mode is used to enable audio output from the function
• This mode is used to enable audio output from the function
other than DVD function in order to check the audio output
from the system without connecting DVD.
from the system without connecting DVD.
This model is also used to prevent system enter protector mode
when DVD is not connected.
when DVD is not connected.
• Procedure:
1. When the system is turnd off, press
1. When the system is turnd off, press
Y
button, [FLANGER]
button and [DISC 1] button simultaneously and the message
“DVD OFFLINE” appears on the fl uorescent indicator tube.
“DVD OFFLINE” appears on the fl uorescent indicator tube.
• To release from DVD Offl ine Mode
To release from this mode, perform “COLD RESET” or turn
off the power supply.
off the power supply.
[VACS DISPLAY]
• This mode is used to check the VACS level.
• This mode is used to check the VACS level.
• Procedure:
1. Press
1. Press
button to turn on the system.
2. Press
Y
button, [SOUND FIELD] button and [DISC 2] but-
ton simultaneously.
3. The VACS Level Display, the fl uorescent indicator tube dis-
plays “VATB F APC”. “V” represent VACS , A represent
VACS level which is triggered by signal level, “T” represent
Thermal VACS NEO, B represent VACS level which is trig-
gered by temperature, “F” represent FAN is triggered by soft-
ware to turn in to high speed, “AP” represent APVACS (Abuse
VACS level which is triggered by signal level, “T” represent
Thermal VACS NEO, B represent VACS level which is trig-
gered by temperature, “F” represent FAN is triggered by soft-
ware to turn in to high speed, “AP” represent APVACS (Abuse
HCD-GN1200D
20
Protection VACS) and “C” represent APVACS level which is
triggered.
triggered.
[DVD SERVICE MODE]
• This mode let you make diagnosis and adjustment easily by
• This mode let you make diagnosis and adjustment easily by
using the remote commander and TV. The instructions, diag-
nostic results, etc. are given on the on-screen display (OSD).
nostic results, etc. are given on the on-screen display (OSD).
Procedure:
1. Press
1. Press
button to turn on the system.
2. Select DVD function.
3. Press
3. Press
Y
button and [OPEN/CLOSE] button simultaneously
and then turn [MASTER VOLUME] knob clockwise.
4. The message “SERVICE IN” appears on the fl uorescent indi-
cator tube and the Top Menu of Remocon Diagnosis Menu ap-
pears on the on-screen display on the TV. The model name and
revision number is displayed at the bottom of the on-screen
display.
pears on the on-screen display on the TV. The model name and
revision number is displayed at the bottom of the on-screen
display.
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History Check
4. Version information
Model name : XXXXX-XX
IF-con
: Ver.XX.XX(XXXX)
Syscon : Ver.X.XXX
5. To execute each function, press its number by using numeric
button on the remote commander.
6. To release from this mode, press button to turn off the sys-
tem.
[EXECUTE IOP MEASUREMENT]
In order to execute IOP measurement, the following standard
procedures must be followed.
procedures must be followed.
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History Check
4. Version information
Model name : XXXXX-XX
IF-con
: Ver.XX.XX(XXXX)
Syscon : Ver.X.XXX
2. Select “2. Drive Manual Operation” by pressing [2] button on
the remote commander. The screen will appear as follows.
Drive Manual Operation
1. Servo Control
2. Track/Layer Jump
3. Manual Adjustment
4. Mech test mode
5. MIRR time adjust
0. Return to top Menu
3. Select “3. Manual Adjustment” by pressing [3] button on the
remote commander. The screen will appear as follows.
Manual Adjust
1. Track Balance Adjust :
2. Track Gain Adjust :
3. Focus Balance Adjust :
4. Focus Gain Adjust :
5. Eq boost Adjust :
6. Iop :
7. TRV. Level :
8. S curve (FE) Level :
9. RFL(PI) Level :
0. MIRR Time :
Y9Change value
RETURN Return to previous menu
4. Select “6.Iop” by pressing [6] button on the remote
commander.
5. Wait until a hexadecimal number appear as follows.
commander.
5. Wait until a hexadecimal number appear as follows.
Manual Adjust
1. Track Balance Adjust :
2. Track Gain Adjust :
3. Focus Balance Adjust :
4. Focus Gain Adjust :
5. Eq Boost Adjust :
6. Iop :
ED :
7. TRV. Level :
8. S curve (FE) Level :
9. RFL(PI) Level :
0. MIRR Time :
Y9Change value
RETURN Return to previous menu
6. Convert data from hexadecimal to decimal using conversion
table.
7. Please
fi nd the label on the rear of the BU (Base Unit).
The default IOP value is written in the label.
8. Subtract between these two values.
9. If the remainder is smaller than 93 (decimal), then it is OK.
However if the value is higher than 93, then the BU is defec-
tiveand need to be change.
tiveand need to be change.
10. Press
0 RETURN
button on the remote commander to return
to previous menu.
11. Press [0] button on the remote commander to return to the Top
Menu of Remocon Diagnosis Menu.
12. Press
button to turn off the set.
Click on the first or last page to see other HCD-GN1200D / MHC-GN1200D service manuals if exist.