DOWNLOAD Sony CMT-SE7 / HCD-SE7 Service Manual ↓ Size: 13.23 MB | Pages: 127 in PDF or view online for FREE

Model
CMT-SE7 HCD-SE7
Pages
127
Size
13.23 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-se7-hcd-se7.pdf
Date

Sony CMT-SE7 / HCD-SE7 Service Manual ▷ View online

9
HCD-SE7
History
Displays the accumulated recording time.
When the accumulated recording time is more than 1 minute, displays the hour and minute
When less than 1 minute, displays “Under 1 min”
The display time indicates the time when the laser is set to high power more, which is about 1/4 of the actual
recording time.
Displays the accumulated playback time.
When the accumulated playback time is more than 1 minute, displays the hour and minute
When less than 1 minute, displays “Under 1 min”
Displays the accumulated rotating time of the spindle motor.
When the accumulated rotating time is more than 1 minute, displays the hour and minute
When less than 1 minute, displays “Under 1 min”
Displays the accumulated number of retry errors during recording and playback.
Displays “r 
 p 
”. 
  after “r” is the number of errors during recording. 
 after “p” is the number of errors during
playback.
This is displayed in hexadecimal from 00 to FF.
Displays the total number of errors.
Displays “total 
”. This is displayed in hexadecimal from 00 to FF.
Displays the past ten rrors.
Displays “0X ErrCd@@”.
X is the history number. The younger the number, the more recent is the history (00 is the latest). @@ is the error
code.
Select the error history number by pressing the  
.
 “R”  or  
>
 “R”   Stick.
Displays the past five retry addresses.
Displays “
 ADRS 
”, 
 is the history number, 
 is the cluster with the retry error.
Select the error history number by pressing the  
.
 “R”  or  
>
 “R”   Stick.
Mode for erasing the error and retry address histories.
Procedure
1. Press the  CLOCK/TIMER SET “R”  button when displayed as “er refresh”.
2. When the display changes to “er refresh?”, press the  ENTER/YES “R”  button
When “Complete!!” is displayed, it means erasure has completed.
Be sure to check the following after executing this mode.
*
Data has been erased.
*
Perform recording and playback, and check that the mechanism is normal.
Mode for erasing the accumulated recording time and accumulated playing time.
Procedure
1. Press the  CLOCK/TIMER SET “R”  button when displayed as “tm refresh”.
2. When the display changes to “tm refresh?”, press the  ENTER/YES “R”  button.
When “Complete!” is displayed, it means erasure has completed.
Mode for erasing the accumulated time of op rec tm, op play tm.
Use these histories as a guide line for the time of replacement of the optical pick-up. If the optical pick-up has
been replaced, perform this procedure and erase the past history.
Procedure
1. Press the  CLOCK/TIMER SET “R”  button when displayed as “op change”.
2. When the display changes to “op change?”, press the  ENTER/YES “R”  button.
When “Complete!” is displayed, it means erasure has completed.
Mode for erasing the accumulated spdl rp tm time.
Use these histories as the guide line for the time of replacement of the spindle motor. If the spindle motor has been
replaced, perform this procedure and erase the past history.
Procedure
1. Press the  CLOCK/TIMER SET “R”  button when displayed as “spdl change”
2. When the display changes to “spdl change?”, press the  ENTER/YES “R”  button.
When “Complete!” is displayed, it means erasure has completed.
Display
op rec tm
op play tm
spdl rp tm
retry err
total err
err history
retry adrs
er refresh
tm refresh
op change
spdl change
Items of Error History Mode Items and Contents
10
HCD-SE7
Table of Error Codes
  Error Code
10
11
12
20
21
22
23
24
30
31
40
41
42
43
50
51
60
Description
Could not perform loading
The changer error occurred
Loading switches combined incorrectly
Timed out without reading the top of PTOC
Could read top of PTOC, but detected error
Timed out without accessing UTOC
Timed out without reading UTOC
Error in UTOC
Could not start playback
Error in sector
A cause of retry occurred during normal recording
Retried due to DRAM overflow
Retry occurred during TOC writing
Retry aborted during S.F editing
Other than access processing, and could not read
address.
Focus NG occurred and overran.
High speed synchronize recording of unlock retry.
11
HCD-SE7
SECTION  1
SERVICING  NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output several times.
DISC SLOT LOCK
The disc slot lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the  ?/1  button to turn the set on.
2. Press the [FUNCTION] button to set DVD function.
3. Insert a disc.
4. Press the DVD 
x  
stick and the  
(DVD) button simulta-
neously for five seconds.
5. The message “LOCKED” is displayed and the slot is locked.
Releasing Procedure :
1. Press the  DVD 
stick and the  
(DVD) button simulta-
neously for five seconds again.
2. The message “UNLOCKED” is displayed and the slot is
unlocked.
Note:
When “LOCKED” is displayed, the slot lock is not released by
turning power on/off with the  ?/1  button.
Note 1:
Regarding the notification symbol “R”
Because the number of the operating buttons of this product
are limited, some operations require use of the operating
buttons of the remote commander (RM-SE7 supplied with
the product). When a specific operation requires use of the
operating buttons of the remote commander (RM-SE7), “R”
is added to the specific operating procedure in this manual.
Example  MENU/NO  “R”  The  MENU/NO  button  of remote
commander.
Note 2:
Incorrect operations may be performed if the test mode ia not
entered properly.
In this case, press the  ?/1  button to turn the power off, and
retry to enter the test mode.
Note 3:
If the disc tray does not open and the message “LOCKED”
appears, press the DVD x tick and the  Z  (DVD) button
simultaneously for 5 seconds or longer.
Then remove your fingers from the above stick and the button.
The message “UNLOCKED” appears for 2 seconds and the disc
tray opens.
• SERVICE POSITION-1 (DVD MECHANISM DECK)
Extension cable
 (J-1501-103-A)(1.00mm/ 29P/ 300L)
front panel section
DVD mechanism deck
(CDM77A-DVBU20E)
Connect the DMB03 board (CN501) and the RF board (CN002) with the extension cable (29-pins) (J-1501-103-A).
12
HCD-SE7
• SERVICE POSITION-2 (MD MECHANISM DECK)
MD mechanism deck
(MDM-7S2D)
• SERVICE POSITION-3 (REG BOARD)
Extension cable
 (J-1501-011-B)(1.25mm/ 19P/ 300L)
MAIN board
REG board
keep here open.
Slant the MAIN board using the extension cable (19-pins) (J-2501-011-B), and check the MAIN board.
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