DOWNLOAD Sony HCD-GN1000D / MHC-GN1000D Service Manual ↓ Size: 6.38 MB | Pages: 106 in PDF or view online for FREE

Model
HCD-GN1000D MHC-GN1000D
Pages
106
Size
6.38 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-gn1000d-mhc-gn1000d.pdf
Date

Sony HCD-GN1000D / MHC-GN1000D Service Manual ▷ View online

17
HCD-GN1000D
3-21. MOTOR (LD) BOARD
3-20. MOTOR (TB) BOARD
6
Remove the two solderings of motor.
8
MOTOR (TB) board
7
table motor assy (M741)
5
two screws
     (+BTTP (M2.6))
4
3
wire (flat type) (CN742)
1
stopper
2
stopper
table
2
Remove the two solderings of motor.
4
MOTOR (LD) board
1
belt (loading)
5
loading motor assy (M751)
3
two screws
     (+BTTP (M2.6))
18
HCD-GN1000D
SECTION 4
TEST MODE
2. The DVD ring indicators, the line below DVD ring indicators
and TAPE A and B indicators flash synchronously on the
fluorescent indicator tube. The function is changed to TV.
* Check of Amplifier
1. Press  [EQ BAND] button repeatedly until a message “GEQ MAX”
appears on the fluorescent indicator tube. GEQ increases to its
maximum.
2. Press  [EQ BAND] button repeatedly until a message “GEQ MIN”
appears on the fluorescent indicator tube. GEQ decreases to its
minimum.
3. Press  [EQ BAND]  button repeatedly until a message “GEQ
FLAT” appears on the fluorescent indicator tube. GEQ set to
flat.
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 fluorescent indicator
tube.
5. When the [MASTER VOLUME] knob is turned counter-clockwise
even slightly, the sound volume decreases to its minimum and
a message “VOLUME MIN” appears on the fluorescent
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 (Automatic
Logic Control) is turned on.
2. During recording, press  m  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 during
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
 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
RAM to initial conditions.
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Press 
x
  button,  [ENTER]  button and 
?/1
  button
simultaneously.
3. The message “COLD RESET” appears on the fluorescent
indicator tube. Then, the fluorescent indicator tube becomes
blank for while, and the set is reset.
[VACS ON/OFF]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Press 
x
 button and 
[ILLUMINATION]
 button simultaneously.
The message “VACS OFF” or “VACS ON” appears on the
fluorescent indicator tube.
[TUNER STEP CHANGE]
• The step interval of AM channels can be toggled between 9 kHz
and 10 kHz.
This mode is not available for Saudi Arabia model.
[PANEL TEST  MODE]
• This mode is used to check the fluorescent indicator tube, LEDs,
buttons, MASTER VOLUME knob, OPERATION DIAL knob,
model, destination, software version and VACS level.
Procedure:
1. Press 
x
 button, 
[ENTER]
 button and 
[DISC 2]
 button
simultaneously.
2. All LEDs and segments in fluorescent indicator tube are lighted up.
3. When you want to enter to the software version display mode,
press 
[DISC 1]
 button. The model information appears on the
fluorescent indicator tube. Press 
[DISC 1]
 button again to view
the destination information.
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.
5. When 
[DISC 3]
 button is pressed while the version numbers
are being displayed except model and destination, the date of
the software creation appears. When 
[DISC 3]
 button is pressed
again, the display returns to the software version display. When
[DISC 1]
 button is pressed while the date of the software creation
is being displayed, the date of the software creation is displayed
in the same order of software version display.
6. Press 
[DISC 2]
 button, the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
“K0 V0 J0”.
Each time a button is pressed, “K” value increases.  However,
once a button has been pressed, it is no longer taken into account.
“J” value increaes in the manner of 0,1,2,3... if 
[OPERATION
DIAL]
 knob is turned clockwise, or it decreases in the manner
of 0,9,8,7... if 
[OPERATION DIAL]
 knob is turned counter-
clockwise.
“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
counter-clockwise.
8. When 
[DISC 3]
 button is pressed after all LEDs and segments
in fluorescent indicator tube light up, the fluorescent indicator
tube displays “VACS A+B  F APC”. A is conventional VACS
level which is triggered by signal level. B is Thermal VACS
level which is triggered by the temperature F is shown if the fan
is turned in high speed and vice-versa. C is VACS level which
is trigger by APVACS (Abuse Protection VACS).
The signal level, which will trigger VACS A is shown in the
center area of the fluorescent indicator tube.
9. When 
[EX-CHANGE/DISC SKIP]
  button is pressed after all
LEDs and segments in fluorescent indicator tube light up,
alternate segments in fluorescent indicator tube and LED would
light up. If you press 
[EX-CHANGE/DISC SKIP]
 button again,
another half of alternate segments in fluorescent indicator tube
and LEDs would light up.  Pressing 
[EX-CHANGE/DISC SKIP]
button again would cause all LED and segments lights up.
10. 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 sections
of Amplifier and Tape.
Procedure:
• To enter Common Test Mode
1. Press 
x
  button, 
[ENTER]
  button and 
[DISC 3]
  button
simultaneously.
19
HCD-GN1000D
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Press [TUNER/BAND] button repeatedly to select the “AM”.
3. Press 
?/1
 button to turn off the system.
4. Press  [ENTER]  button and 
?/1
  button simultaneously. The
system will turn on automatically. The message “AM 9k STEP”
or “AM 10k STEP” appears on the fluorescent indicator 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
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.
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Select DVD function.
3. Press 
x
 button, [SOUND FLASH] button and 
?/1
 button
simultaneously during “DVD NO DISC” condition. The
system will turn off automatically.
4. After the “STANDBY” blinking display finishes, a message
“MECHA LOCK” appears on the fluorescent indicator tube and
the DVD ship mode is set.
[DVD 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 
?/1
 button to turn on the system.
2. Select DVD function.
3. Press  [DVD]  button and 
?/1
  button simultaneously during
“DVD NO DISC” condition. The system will turn off
automatically.
4. After the “STANDBY” blinking display finishes, a message
“MECHA LOCK” appears on the fluorescent indicator tube and
the DVD ship mode is set.
[DVD TRAY LOCK MODE]
• This mode is used to lock the disc tray. When this mode is
activated, the disc tray will not open when [OPEN/CLOSE]
button or [EX-CHANGE/DISC SKIP] button is pressed. The
message “LOCKED” appears on the fluorescent indicator tube.
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Select DVD function.
3. Press 
x
 button and [OPEN/CLOSE] button simultaneously
and hold down until “LOCKED” or “UNLOCKED” appears
on the fluorescent indicator tube (around 5 seconds).
[TV/SAT SWITCHING]
• This mode let you switch from TV to SAT and vice-versa.
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Select TV function.
3. Press  [TV/SAT]  button and 
?/1
  button simultaneously.  The
function will change to SAT. Press the same buttons again to
change from SAT to TV.
[DVD COLOR SYSTEM]
• This mode let you change the color system of the video output
from PAL to NTSC or vice-versa.
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Select DVD function.
3. Press 
?/1
 button again to turn off the system.
4. Press   X   button and 
?/1
 button simultaneously. The system
will turn on automatically.
5. The message “COLOR PAL” or “COLOR NTSC” appears on
the fluorescent indicator tube.
[REMOTE COMMANDER DISABLE MODE]
• 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
“RemoteDisable” appears on the fluorescent 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 supply is
cutoff.
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Press 
x
  button,  [FLANGER]  button and [DISC 2]  button
simultaneousl untill“RemoteDisable” or “RemoteEnable”
appears on the fluorescent indicator tube.
[TCM OFFLINE MODE]
• This mode is used to prevent the system from turning off
automatically when TCM is not connected. Therefore,
measurements 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 
?/1
 button simultaneously. The system will
turn on automatically.
2. The message “TCM OFFLINE” will appears on the fluorescent
indicator tube.
• To release from TCM Offline Mode, perform “COLD RESET” or
turn off the power supply.
[MTK FIRMWARE DISPLAY]
• This mode is used to display the MTK firmware version.
• Procedure:
1. Press 
?/1
 button to turn on the system.
2. Press [DVD] button to switch to DVD function.
3. Press 
?/1
 button again to turn off the system.
4. Press 
x
 button and 
?/1
 button.
The system turns on automatically.
5. The version of MTK firmware appears on the TV screen.
 [MTK OFFLINE]
• 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 MTK.
• Procedure:
1. Press 
?/1
 button to turn on the system.
2. Press 
x
  button,  [FLANGER]  button and [DISC 1]  button
simultaneously and the message “MTK OFFLINE” appears on
the fluorescent indicator tube.
20
HCD-GN1000D
[DVD SERVICE MODE]
• This mode let you make diagnosis and adjustment easily by us-
ing the remote commander and TV. The instructions, diagnostic
results, etc. are given on the on-screen display (OSD).
Procedure:
1. Press 
?/1
 button to turn on the system.
2. Select DVD function.
3. Press 
x
 button and [OPEN/CLOSE] button simultaneously
and then turn [MASTER VOLUME] knob clockwise.
4. The message “SERVICE IN” appears on the fluorescent
indicator tube and the Top Menu of Remocon Diagnosis Menu
appears 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 
?/1
  button to turn off the
system.
[EXECUTE IOP MEASUREMENT]
In order to execute IOP measurement, the following standard
procedures must be followed.
1. Enter DVD Service Mode.
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. Tray Aging 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:
$ 4 
Change 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.
Ver. 1.3
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