Sony CMT-M373NT / HCD-M373 Service Manual ▷ View online
9
HCD-M373
Table of Error Codes
Error Code
Description
10
11
12
20
21
22
23
24
30
31
40
41
42
43
50
51
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.
10
HCD-M373
SECTION 1
SERVICING NOTE
Disc Tray Lock
The disc tray lock function for the antitheft of a demonstration disc in the store is equipped.
Procedure:
1.
Procedure:
1.
Press the ?/1 button to turn the set on.
2.
Select the function “CD”.
3.
A disc is put in and a tray is closed.
4.
Press two buttons of x and Z (CD) simultaneously for five seconds.
5.
The message “LOCKED” is displayed and the tray is locked. (Even if turning power on/off, the tray is still locked.)
6.
Press two buttons of x and Z (CD) simultaneously for five seconds again.
7.
The message “UNLOCKED” is displayed and the tray is unlocked.
Service Position-1 (Checking TC Section)
Note 1:
About “R”
As this unit has only a few buttons, some operations require the use of remote commander (RM-SM100EW/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.
As this unit has only a few buttons, some operations require the use of remote commander (RM-SM100EW/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 test mode is not entered properly.
In this case, press the ?/1 button to turn the power off, and retry to enter the test mode.
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 two buttons of
x
and Z (CD) at the same for
5 seconds or longer.
Then the lock is released, the message “UNLOCKED” appears for 2 seconds and the disc tray opens.
Then the lock is released, the message “UNLOCKED” appears for 2 seconds and the disc tray opens.
MAIN BOARD
TC BOARD
cassette mechanism deck
(CMAL1Z-236A)
(CMAL1Z-236A)
11
HCD-M373
Service Position-2 (Checking CD Mechanism and MD Mechanism Section)
Service Position-3 (Checking Power Supply Section)
Connect the POWER board (CN985) and the AMP board (CN805) with the extension cable (6P)(J-2501-229-A).
MAIN BOARD
DIGITAL BOARD
MD mechanism deck section
(MDM-7S2D)
(MDM-7S2D)
CD mechanism deck section
(CDM55A-30BBD61B)
(CDM55A-30BBD61B)
MAIN BOARD
POWER BOARD
jig (6P) (J-2501-229-A)
AMP BOARD
REG BOARD
12
HCD-M373
Jig For Checking BD (MD) Board Waveform
The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items
to be performed are shown as follows.
to be performed are shown as follows.
I+3V : For measuring Iop (Check the deterioration of the optical pick-up laser)
Iop
Iop
: For measuring Iop (Check the deterioration of the optical pick-up laser)
GND : Ground
TE
TE
: TRK error signal (Traverse adjustment)
FE
: Focus error signal
VC
: Reference level for checking the signal
RF
: RF signal (Check jitter)
I+3V
CN105
Iop
TE
VC
GND
FE
RF
I+3V
Iop
Iop
GND
TE
FE
VC
RF
FE
VC
RF
I+3V
Iop
GND
TE
FE
VC
RF
Iop
GND
TE
FE
VC
RF
1
7
for MDM-7S2D
Click on the first or last page to see other CMT-M373NT / HCD-M373 service manuals if exist.