DOWNLOAD Sony HCD-GN1200D / MHC-GN1200D Service Manual ↓ Size: 7.31 MB | Pages: 108 in PDF or view online for FREE

Information of Emergency History.

1.  Enter DVD Service Mode.

2.  Select “3. Emergency History” by pressing [3] button on the 

remote commander. The screen will appear as follows.

Emg.History Check

Laser Hours               CD         999h        59min

1.    01   05   04   04                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

DVD      999h

59min

Next    Next Page        Prev   Prev Page

0    Return to top Menu

3.  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.

4.  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 

 or 

 on the remote com-

mander.  “Error code” consists of the following (a), (b) and 
(c).

(a) 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 off error code is as follows.
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
52. Open kick spindle error
51: Spindle stop error
60: Focus on error
61: Seek fail error
62: Read Qdata/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type

 (b) Parameter of error code

Example of Error code

1.    01   05   04   04                00   92   46   00

       00   00   00   00                00   00   23   45

This is the detail of error code.

 (c) Time of error code

Example of Error code

1.    01   05   04   04                00   92   46   00

       00   00   00   00                00   00   23   45

This is the laser time when an error occured.

5.  How to clean laser hours
 Press 

 DISPLAY

 button and then press [CLEAR] button.

 

Both CD and DVD data are cleared.

Emg.History Check

Laser Hours               CD

0h        0min

1.    01   05   04   04                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

DVD      0h        0min

Next    Next Page        Prev   Prev Page

0    Return to top Menu

6.  How to clean Emergency History
 

Press [DVD TOP MENU] button and then press [CLEAR] 
button.

 

The error code for all emergency history would be reset.

Emg.History Check

Laser Hours               CD         999h        59min

1.    00   00   00   00                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

DVD      999h

59min

Next    Next Page        Prev   Prev Page

0    Return to top Menu

7.  To return to the Top Menu of Remocon Diagnosis Menu, press 

[0] button on the remote commander.

Press [DVD MENU] button and then press [CLEAR] button on the 
remote commander.

Emg.History Check

Laser Hours               CD         999h        59min

Initialize setup data...

DVD      999h

59min

Next    Next Page        Prev   Prev Page

0    Return to top Menu

Information of fi rmware version.

1.  Enter DVD service Mode.

2.  Select “4. Version Information” by pressing [4] button on the 

remote commander. The screen will appears follows.

Version information

Firm   (Main)        : Ver.  xxxxx

Firm   (Sub)

:   xxxxx

RISC    :   xxxxx

8032 :   xxxxx

Audio DSP      :   xxxxx

Servo DSP      :   xxxxx

0    Return to top Menu

3.  To return to the Top Menu of Remocon Diagnosis Menu, press 

[0] button on the remote commander.

• Display

Display on fl uorescent indicator tube,

 

         [GC ERR01]

 

When “GC ERR01” message appears, all LEDs lights up  and 
set becomes hang. 

 

Set does not respond to any main unit keys or remote controller 
keys.

 

• 

What to do

1.  Please check the model resistor value and replace with correct 

parts.

2.  Plug in the set. The error message shall not be appear.

Precaution
1.  Clean the following parts with a denatured alcohol-moistened 

swab:

  record/playback heads 

pinch rollers

  erase head 

rubber belts

 capstan 

idlers

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 

parts adjusted.

5.  The adjustments should be performed with the rated power 

supply voltage unless otherwise noted.

Mode

Torque meter

Meter reading

FWD

CQ-102C

2.9m N • m to 6.9m N • m

 30 to 70 g • cm 

(0.42 – 0.97 oz • inch)

FWD
back tension

CQ-102C

0.15m N • m to 0.59m N • m 

2 to 6 g • cm 

(0.03 – 0.08 oz • inch)

REV

CQ-102RC

2.9m N • m to 6.9m N • m

 30 to 70 g • cm 

(0.42 – 0.97 oz • inch)

REV
back tension

CQ-102RC

0.15m N • m to 0.59m N • m 

2 to 6 g • cm 

(0.03 – 0.08 oz • inch)

FF/REW

CQ-201B

4.8m N • m to 16.7m N • m 

49 to 170 g • cm

 (0.68 – 2.36 oz • inch)

Procedure:
1.  Turn the power on.
2.  Input the following signal from Signal Generator to FM 

antenna input directly.

  
*  Carrier Freq  : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
 

Deviation     : 75 kHz

 

Modulation   : 1 kHz

 

ANT input    : 35 dBu (EMF)

 

Note:  Please use 75 ohm “coaxial cable” to connect SG and the set. You 

cannot use video cable for checking.

 

Please use SG whose output impedance is 75 ohm. 

  
3.  Set to FM tuner function and tune A, B and C signals.
4. Confi rm “TUNED” is lit on the display for A, B and C 

signals.

  
The mark of “TUNED” means “The selected station signal is 
received in good condition.”

OUT (75 7)

P-4-A100

10 kHz, –10 dB

Azimuth Adjustment

0 dB=0.775V

1.   Demagnetize the record/playback head with a head demagne-

tizer.

2.   Do not use a magnetized screwdriver for the adjustments.
3.   After the adjustments, apply suitable locking compound to the 

parts adjusted.

4.   The adjustments should be performed with the rated power 

supply voltage unless otherwise noted.

5.   The adjustments should be performed in the order given in this 

service manual. (As a general rule, playback circuit adjustment 
should be completed before performing recording circuit ad-
justment.)

6.  The adjustments should be performed for both L-CH and 

RCH.

7.   Switches and controls should be set as follows unless other-

wise specifi ed.

  Perform this adjustments for both decks 

Procedure:
1.  Mode:  Playback

Pin  (L-CH)

Pin  (R-CH)

Pin  (GND)

2.  Turn the adjustment screw and check output peaks. If the peaks 

do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.