Sony HCD-GZR777D / MHC-GZR777D (serv.man2) Service Manual ▷ View online
HCD-GZR777D
21
[TCM OFF LINE MODE]
• This mode prevents the system from tuning off automatically
when TCM is not connected. Therefore, measurements can be
done even when TCM is not connected during production.
done even when TCM is not connected during production.
Procedure:
1. Press the [
?/1
] button to turn on the system and enter the clock
display or demonstration mode.
2. Press the [REC TO TAPE] button, [DISC 3] button and [
?/1
]
button simultaneously. The system will turn on automatically.
3. The message “TAPE MECHA OFF LINE” appears on the
fluorescent indicator tube.
• To release from TCM OFF LINE Mode
1. To release from this model, press the [
?/1
] button.
[PANEL TEST MODE]
• This mode is used to check the fluorescent indicator tube,
LEDs, button, MASTER VOLUME dial OPERATION DIAL
ring, system software version, DVD lib version, model name
and destination.
ring, system software version, DVD lib version, model name
and destination.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [
x
] button, [DISC 3] button and [USB] button simul-
taneously.
3. Power illuminator LEDs and segment in fluorescent indicator
tube are lighted up.
4. When you want to enter to the system software version display
model, press the [DISC 1] button. The system software version
appears on the fluorescent indicator tube.
appears on the fluorescent indicator tube.
Press the [DISC 1] button again, the DVD lib version appears
on the fluorescent indicator tube.
on the fluorescent indicator tube.
5. Press the [DISC 2] button the mode name and destination on
the fluorescent indicator tube.
6. Press the [DISC 3] button the key encode test mode is acti-
vated.
7. In the key encode test mode, the fluorescent indicator tube dis-
plays “KEY 0 0 0 0 0”.
Each time a button pressed, change the each numbers.
• To release from Panal Test Mode
1. To release from this mode, press the [
x
] button, [DISC 3] but-
ton and [USB] button simultaneously.
[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 cus-
tomer after repair.
tomer after repair.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [DVD] button, to set the “NO DISC” mode.
3. Press the [
3. Press the [
N
] button and [
?/1
] button simultaneously.
The system will turn off automatically.
4. After the “STANDBY” blinking display finishes, a message
“LOCK” appears on the fluorescent indicator tube and the
DVD ship mode is set.
DVD ship mode is set.
• To release from DVD Ship Mode
1. To release from this model, press the [
?/1
] button.
[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 after the power supply is turned
off. Use this mode when returning the set to the customer after
repair.
the RAM to initial conditions after the power supply is turned
off. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [DVD] button, to set the “NO DISC” mode.
3. Press the [TUNING –] button, [DISC 3] button and [
3. Press the [TUNING –] button, [DISC 3] button and [
?/1
] but-
ton simultaneously.
4. After the “STANDBY” blinking display finishes, a message
“COLD RESET” appears on the fluorescent indicator tube and
the DVD ship mode is set.
the DVD ship mode is set.
• To release from DVD Ship Mode
1. To release from this model, press the [
?/1
] button.
[DISC THEFT PREVENTION MODE]
• This mode let you lock the disc tray. When this mode is acti-
vated, the disc tray will not open.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [DVD] button.
3. Press the [
3. Press the [
x
] button and [OPEN/CLOSE
Z
] button simulta-
neously and hold down until “LOCKED” or “UNLOCKED”
appears on the fluorescent indicator tube (around 5 seconds).
appears on the fluorescent indicator tube (around 5 seconds).
• To release from Disc Theft Prevention Mode
1. This mode will not be deselected only by turning the power
off. To exit from the mode, perform the above item 3 again.
[DVD COLOR SYSTEM MODE]
• This mode let you change the color system of the video output
from PAL to NTSC or vice-versa.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [DVD] button.
3. Press the [
3. Press the [
?/1
] button to turn off the system.
4. Press the [DISPLAY] button to switch the mode the clock dis-
play or demonstration mode.
5. Press the [
X
] button and [
?/1
] button simultaneously.
The system will turn off automatically.
6. The message “COLOR PAL” or “COLOR NTSC” appears on
the fluorescent indicator tube.
• To release from DVD Color System Mode
1. Once the color system has been selected, the mode is fixed
there after. If you wish to change the mode again, perform the
above item 4 again.
above item 4 again.
[DVD FIRMWARE VERSION MODE]
• This mode is used to display the DVD firmware version.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [DVD] button.
3. Press the [
3. Press the [
?/1
] button to turn off the system and enter the
clock display or demonstration mode.
4. Press the [
x
] button and [
?/1
] button simultaneously.
5. The version of DVD firmware appears on the on-screen dis-
play on TV.
HCD-GZR777D
22
• To release from DVD Firmware Version Mode
1. To release from this mode, press the [
?/1
] button.
[MTK REBOOT AVOIDANCE MODE]
• This mode is used to display the MTK Reboot Avoidance.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [DVD] button.
3. Press the [DVD] button, [OPEN/CLOSE
3. Press the [DVD] button, [OPEN/CLOSE
Z
] button and [TUN-
ING +] button simultaneously.
4. The message “MTK DBG” appears on the fluorescent indica-
tor tube.
• To release from MTK Reboot Avoidance Mode
1. To release from this mode, press the [
?/1
] button.
[AM TUNER STEP CHANGE]
• The step interval of AM channels can be toggled between 9
kHz and 10 kHz.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [TUNER/BAND] button repeatedly to select the
“AM”.
3. Press the [
?/1
] button to turn off the system.
4. Press the [TUNING +] button and [
?/1
] button simultane-
ously. The system will turn on automatically.
5. The message “AM 9K STEP” or “AM 10K STEP” appears on
the fluorescent indicator tube and thus the channel step change.
[VIDEO/SAT FUNCTION CHANGE]
• This mode let you change from VIDEO to SAT and vice-versa.
Procedure:
1. Press the [
?/1
] button to turn on the system.
2. Press the [VIDEO/SAT] button.
3. Press the [VIDEO/SAT] button and [
3. Press the [VIDEO/SAT] button and [
x
] button simultaneously.
The function will change to SAT.
4. Press the same button again to change from SAT to VIDEO.
[DVD SERVICE MODE]
• This mode let you make diagnosis and adjustment easily by
using the remote commander and the TV. The instructions, di-
agnostic results, etc. are given on the on-screen display.
agnostic results, etc. are given on the on-screen display.
• TEST DISC LIST
Be sure to use the DVD disc that matches the signal standards
of your region.
• CD
of your region.
• CD
YEDS-18 (Part No.: 3-702-101-01)
PATD-012 (Part No.: 4-225-203-01)
• DVD SL (Single Layer)
NTSC : HLX-503 (Part No.: J-6090-069-A)
HLX-504 (Part No.: J-6090-088-A)
PAL : HLX-506 (Part No.: J-6090-077-A)
• DVD DL (Double Layer)
NTSC : HLX-501 (Part No.: J-6090-071-A)
HLX-505 (Part No.: J-6090-089-A)
PAL : HLX-507 (Part No.: J-6090-078-A)
• Procedure to enter to DVD Service Mode:
1. Press the [
?/1
] button to turn on the system.
2. Press the [DVD] button.
3. Press the [
3. Press the [
x
] button and [OPEN/CLOSE
Z
] button simultane-
ously and then turn the [MASTER VOLUME] dial clockwise.
4. The message “SERVICE IN” appears on the fluorescent in-
dicator tube and the Top Menu of Remocon Diagnosis Menu
appears on the on-screen display on the TV. The model name,
main unit’s micom version information (IF-con) and DVD
firmware version information (Syscon) are displayed at the
bottom of the on-screen display.
appears on the on-screen display on the TV. The model name,
main unit’s micom version information (IF-con) and DVD
firmware version information (Syscon) are 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
4. Version Information
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History
4. Version Information
Model Name
IF-con
Syscon
IF-con
Syscon
: SVX2D_ME
: Ver. 01.00 (0000)
: Ver. 1.200
: Ver. 01.00 (0000)
: Ver. 1.200
5. To execute each function, press its number by using numeric
button on the remote commander.
6. To release from this mode, press the [
?/1
] button to turn off
the system.
• Execute IOP Measurement
In order to execute IOP measurement, the following standard
procedures must be followed.
procedures must be followed.
1. From the Top Menu of Remocon Diagnosis Menu, select “2.
Drive Manual Operation” by pressing the [2] button on the
remote commander. The following screen appears on the on-
screen display.
remote commander. The following screen appears on the on-
screen display.
Drive Manual Operation
1. Servo Control
2. Track/Layer Jump
3. Manual Adjustment
4. Mecha test mode
5. MIRR time Adjust
0. Return to Top Menu
2. Track/Layer Jump
3. Manual Adjustment
4. Mecha test mode
5. MIRR time Adjust
0. Return to Top Menu
2. Select “3. Manual Adjustment” by pressing the [3] button on
the remote commander. The following screen appears on the
on-screen display.
on-screen display.
Manual Adjust
1. Track Balance Adjust:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eg Boost Adjust:
6. Iop:
7. TRV. Level:
8. S curve (FE) Level:
9. RFL (PI) Level:
0. MIRR Time:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eg Boost Adjust:
6. Iop:
7. TRV. Level:
8. S curve (FE) Level:
9. RFL (PI) Level:
0. MIRR Time:
O
o Change Value
RETURN Return to previous menu
HCD-GZR777D
23
3. Select “6. Iop:” by pressing the [6] button on the remote com-
mander.
4. Wait until a hexadecimal number appears in the on-screen dis-
play as below:
Manual Adjust
1. Track Balance Adjust:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eg Boost Adjust:
6. Iop. ED
7. TRV. Level:
8. S curve (FE) Level:
9. RFL (PI) Level:
0. MIRR Time:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eg Boost Adjust:
6. Iop. ED
7. TRV. Level:
8. S curve (FE) Level:
9. RFL (PI) Level:
0. MIRR Time:
O
o Change Value
RETURN Return to previous menu
5. Convert data from hexadecimal to decimal by using conver-
sion table.
6. Please find the label on the rear of the BU (Base Unit).
The default IOP value is written in the label.
7. Subtract between these two values.
8. If the remainder is smaller than 93 (decimal), then it is OK.
8. 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-
tive and need to be change.
tive and need to be change.
9. Press the [RETURN] button on the remote commander to re-
turn to previous menu.
10. Press the [0] button on the remote commander to return to the
Top Menu of Remocon Diagnosis Menu.
11. Press the [
?/1
] button to turn off the system.
• Check Emergency History
To check the emergency history, please follow the following
procedure.
procedure.
1. From the Top Menu of Remocon Diagnosis Menu, select “3.
Emergency History” by pressing the [3] button on the remote
commander. The following screen appears on the on-screen
display.
commander. The following screen appears on the on-screen
display.
Emg. History Check
1. 01 05 04 04
Laser Hours
CD
999h
59min
DVD
999h
59min
00 92 46 00
00 00 00 00
00 00 23 45
2. 02 02 01 01
00 A9 4B 00
00 00 00 00
00 00 23 45
Next Next Page
Prev Prev Page
O Return to Top Menu
2. You can check the total time when the laser is turned on during
playback of DVD and CD from the above menu. The maxi-
mum time, which can be displayed are 999h 59min.
mum time, which can be displayed are 999h 59min.
3. You can check the error code of latest 10 emergency history
from the above menu. To view the previous or next page of
emergency history, press the [
emergency history, press the [
.
] button or [
>
] button on
the remote commander. The error code consists of
• Error Code
Example of Error code
1. 01 05 04 04
00 92 46 00
00 00 00 00
00 00 23 45
The meaning of error code is as below:
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 Changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33: TE sensor adjustment error
34: TE loop gain adjustment error
35: FE loop gain adjustment error
36: Bad jitter after adjustment
40: Focus NG
42: Focus layer jump NG
51: Spindle stop error
52: Open kick spindle error
60: Focus on error
61: Seek fail error
62: Read Q data/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type
• Parameter of error code
This is the detail of error code.
Example of Error code
1. 01 05 04 04
00 92 46 00
00 00 00 00
00 00 23 45
• Time of error code
This is the laser time when an error occurred.
Example of Error code
1. 01 05 04 04
00 92 46 00
00 00 00 00
00 00 23 45
To clear the Laser Hours
Press the [ DISPLAY] button and then press the [CLEAR] but-
ton. The data for both CD and DVD data are reset.
ton. The data for both CD and DVD data are reset.
Emg. History Check
1. 01 05 04 04
Laser Hours
CD
0h
0min
DVD
0h
0min
00 92 46 00
00 00 00 00
00 00 23 45
2. 02 02 01 01
00 A9 4B 00
00 00 00 00
00 00 23 45
Next Next Page
Prev Prev Page
O Return to Top Menu
HCD-GZR777D
24
To clear the Emergency History
Press the [DVD TOP MENU] button and then press the [CLEAR]
button.
The error code for all emergency history would be reset.
button.
The error code for all emergency history would be reset.
Emg. History Check
1. 00 00 00 00
Laser Hours
CD
999h
59min
DVD
999h
59min
00 00 00 00
00 00 00 00
00 00 00 00
2. 00 00 00 00
00 00 00 00
00 00 00 00
00 00 00 00
Next Next Page
Prev Prev Page
O Return to Top Menu
To clear the Initialize Setup Data
Press the [DVD/TUNER MENU] button and then press the
[CLEAR] button on the remote commander.
[CLEAR] button on the remote commander.
Emg. History Check
Initialize setup data...
Laser Hours
CD
999h
59min
DVD
999h
59min
Next Next Page
Prev Prev Page
O Return to Top Menu
To return to the Top Menu of Remocon Diagnosis Menu
Press the [0] button on the remote commander.
• Check Version Information
To check the version information, please follow the following
procedure.
procedure.
1. From the Top Menu of Remocon Diagnosis Menu, select “4.
Version information” by pressing the [4] button on the remote
commander. The following screen appears on the on-screen
display.
commander. The following screen appears on the on-screen
display.
Version information
O Return to Top Menu
Firm (Main) : Ver. xxxxx
Firm (Sub) : xxxxx
RISC : xxxxx
8032 : xxxxx
Audio DSP : xxxxx
Servo DSP : xxxxx
Firm (Sub) : xxxxx
RISC : xxxxx
8032 : xxxxx
Audio DSP : xxxxx
Servo DSP : xxxxx
To return to the Top Menu of Remocon Diagnosis Menu, press
the [0] button on the remote commander.
the [0] button on the remote commander.
SECTION 4
MECHANICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback head
pinch roller
erase head
rubber belts
capstan
idler
2. Demagnetize the record/playback head with a head demagne-
tizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
4. After the adjustments, apply 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-102C
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 to 0.98 oz • inch)
FWD
back tension
back tension
CQ-102C
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 to 0.08 oz • inch)
FF/REW
CQ-201B
6.96 N • m to 14.02 N • m
71 to 143 g • cm
(0.98 to 1.99 oz • inch)
FWD tension
CQ-403A
9.80 N • m
100 g or more
(3.53 oz or more)
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