Sony HCD-M700 Service Manual ▷ View online
31
HCD-M700
Function
MD N X
x
M
m
PLAY MODE/DIRECTION
REC MODE
MD Z
REPEAT
CLEAR“R”
5-1.
Operating the Continuous Playback Mode
1.
Entering the continuous playback mode
(1) Set the disc in the unit. (Whichever recordable discs or discs for playback only are available)
(2) Press the MD
(1) Set the disc in the unit. (Whichever recordable discs or discs for playback only are available)
(2) Press the MD
.
“R” or MD
>
“R” button to display “CPLAY 1MODE” (C34).
(3) Press the ENTER/YES “R”
button to change the display to “CPLAY1MID”.
(4) When access completes, the display changes to “C =
AD =
)”.
Note:
The numbers “ ” displayed show you error rates and ADER.
2.
Changing the parts to be played back
(1) Press the ENTER/YES “R” button during continuous playback to change the display as below.
(1) Press the ENTER/YES “R” button during continuous playback to change the display as below.
When pressed another time, the parts to be played back can be moved.
(2) When access completes, the display changes to “C =
AD =
)”.
Note:
The numbers “ ” displayed show you error rates and ADER.
3.
Ending the continuous playback mode
(1) Press the
(1) Press the
MENU/NO “R”
button. The display will change to “CPLAY 1MODE” (C34).
(2) Press the Z (MD) button and take out the disc.
Note:
The playback start addresses for IN, MID, and OUT are as follows.
IN
: 40h cluster
MID : 300h cluster
OUT : 700h cluster
OUT : 700h cluster
5-2.
Operating the Continuous Recording Mode (Use only when performing self-recording/playback check)
1.
Entering the continuous recording mode
(1) Set a recordable disc in the unit.
(2) Press the MD
(1) Set a recordable disc in the unit.
(2) Press the MD
.
“R” or MD
>
“R” button to display “CREC 1MODE” (C35).
(3) Press the ENTER/YES “R” button to change the display to “CREC 1MID”.
(4) When access completes, the display changes to “CREC 1(
(4) When access completes, the display changes to “CREC 1(
)” and “ MD ” lights up.
Note:
The numbers “ ” displayed shows you the recording position addresses.
2.
Changing the parts to be recorded
(1) When the ENTER/YES “R”
(1) When the ENTER/YES “R”
button is pressed during continuous recording, the display changes as below.
When pressed another time, the parts to be recorded can be changed. “
MD ” goes off.
(2) When access completes, the display changes to “CREC 1(
)” and “
MD ” lights up.
Note:
The numbers “ ” displayed shows you the recording position addresses.
3.
Ending the continuous recording mode
(1) Press the
(1) Press the
MENU/NO “R”
button. The display changes to “CREC 1MODE” (C35) and “ MD ” goes off.
(2) Press the Z (MD) button and take out the disc.
Note 1:
The recording start addresses for IN, MID, and OUT are as follows.
IN
: 40h cluster
MID
: 300h cluster
OUT
: 700h cluster
Note 2:
The MENU/NO “R” button can be used to stop recording anytime.
Note 3:
Do not perform continuous recording for long periods of time above 5 minutes.
Note 4:
During continuous recording, be careful not to apply vibration.
6. Functions of Other Buttons
“CPLAY 1MID” t “CPLAY 1OUT” t “CPLAY 1IN”
“CREC 1MID” t “CREC 1OUT” t “CREC 1IN”
Contents
Sets continuous playback when this is pressed in the STOP state. When this is pressed during continu-
ous playback, tracking power servo turns ON/OFF.
ous playback, tracking power servo turns ON/OFF.
Stops continuous playback and continuous recording
The sled moves to the outer circumference only when this is pressed
The sled moves to the inner circumference only when this is pressed
Switches the spindle servo mode (CLV S y CLV A)
Switches the pits or grooves each time the button is pressed
Ejects the disc
Releases the test mode
Clears the setting of pits and groove, and judges pits and groove again.
When it is pressed while servo is turning on, the recording starts from present position.
z MD
32
HCD-M700
7. Automatic Self-diagnosis Function
This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up.
To perform this test mode, the laser power must first be checked.
Perform AUTO CHECK after the laser power check and Iop Compare.
To perform this test mode, the laser power must first be checked.
Perform AUTO CHECK after the laser power check and Iop Compare.
Procedure:
1.
Display “AUTO CHECK” and press the ENTER/YES “R” button. If “LDPWR
” is displayed, it means that the laser power
check has not been performed. In this case, perform the laser power check and Iop Compare (C27), and then repeat from step1.
2.
If a disc is in the mechanical deck, it will be ejected forcibly.
“DISC IN” will be displayed in this case. Load a test disc (MDW-74/GA-1) which can be recorded.
“DISC IN” will be displayed in this case. Load a test disc (MDW-74/GA-1) which can be recorded.
3.
If a disc is loaded at step 2, the check will start automatically.
4.
When “XX CHECK” is displayed, the item corresponding to XX will be performed.
When “06 CHECK” completes, the disc loaded at step 2 will be ejected. “DISC IN” will be displayed. Load the check disc (TDYS-1).
When “06 CHECK” completes, the disc loaded at step 2 will be ejected. “DISC IN” will be displayed. Load the check disc (TDYS-1).
5.
When the disc is loaded in step 4, the check will automatically be resumed from “07 CHECK”.
6.
After completing to “12 CHECK”, check OK or NG will be displayed. If all items are OK, “CHK ALL OK” will be displayed. If any
item is NG, it will be displayed as “NG:xxxx”.
item is NG, it will be displayed as “NG:xxxx”.
When “CHK ALL OK” is displayed, it means that the optical pick-up is normal. Check the operations of other parts (spindle motor, sled
motor, etc.).
When displayed as “NG:xxxx”, it means that the optical pick-up is faulty. In this case, replace the optical pick-up.
motor, etc.).
When displayed as “NG:xxxx”, it means that the optical pick-up is faulty. In this case, replace the optical pick-up.
33
HCD-M700
Other faults are suspected.
Check the mechanism parts (spindle motor, sled motor, etc.).
Check the mechanism parts (spindle motor, sled motor, etc.).
Start
NG
NG
NG
OK
OK
OK
Laser Power Check
6-2.
(See page 36)
6-3.
(See page 36)
6-4.
(See page 37)
Iop Compare
Auto Check
Replace optical pick-up or MDM-7B4M
MD SECTION
Note 1:
About “R”
As this unit has only a few buttons, some operations require the use of remote commander (RM-SM700E/provided with unit) buttons. These
operations are indicated as “R” in this manual.
Example:
As this unit has only a few buttons, some operations require the use of remote commander (RM-SM700E/provided with unit) buttons. These
operations are indicated as “R” in this manual.
Example:
MENU/NO “R”
...Press the
[MENU/NO]
button of the remote commander.
Note 2:
Incorrect operations may be performed if the MD test mode is not entered properly.
In this case, press the
In this case, press the
?/1
button to turn the power off, and retry to enter the MD test mode.
1. Parts Replacement and Adjustment
If malfunctions caused by optical pick-up such as sound skipping are suspected, follow the following check.
Check before replacement
SECTION 5
ELECTRICAL ADJUSTMENTS
34
HCD-M700
Flow Chart for Adjustment
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
Start
IC195 replacement
OP or IC195 replacement
IC101, IC195 or D101
replacement
OP, IC190 or IC195
replacement
After turning the power off and on, initialises the non-volatile
memory (EEPROM).
memory (EEPROM).
7. Initial setting of adjustment value (See page 39)
9. Temperature compensation offset adjustment (See page 39)
10. Laser power adjustment (See page 39)
OP, IC102, IC190 or IC195
replacement
OP, IC101, IC151 or IC195
replacement
OP replacement
Spindle motor replacement
6-4. Auto check (See page 37)
End
11. Iop NV save (See page 40)
12.Traverse adjustment (See page 40)
13. Focus bias adjustment (See page 41)
16. Auto gain control output level adjustment (See page 42)
13. Focus bias adjustment (See page 41)
16. Auto gain control output level adjustment (See page 42)
In Err display mode, write OP change iop
In Err display mode, Spdl change
•Abbreviation
OP: Optical pick-up
OP: Optical pick-up
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