MDS-PC1 - Sony Audio Service Manual (repair manual). Page 7

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RETRY CAUSE DISPLAY MODE
* In this test mode, the causes for retry of the unit during recording and stop can be displayed on the fluorescent display tube. During
playback, the “track mode” for obtaining track information will be set.
This is useful for locating the faulty part of the unit.
* The following will be displayed:
During recording and stop :Retry cause, number of retries, and number of retry errors.
During playback
:Information such as type of disc played, part played, copyright.
These are displayed in hexadecimal.
Procedure:
1. Load a recordable disc whose contents can be erased into the unit.
2. Press the  MENU/NO  button. When “Edit Menu” is displayed on the fluorescent display tube, rotate the  AMS  dial to display “All
Erase?”.
3. Press the  YES  button. (Or press the  AMS  dial)
4. When “All Erase??” is displayed on the fluorescent display tube, the music calendar number blinks.
5. Press the  YES  button to display “Complete!!”, and press the  p  button immediately. Wait for about 15 seconds while pressing the button.
(The  AMS  dial can be pressed instead of the  YES  button for the same results.)
6. When the “TOC” displayed on the fluorescent display tube goes off, release the  p  button.
7. Press the  rREC  button to set the recording standby state. Then press the  ·P  button to start recording.
8. Press the  DISPLAY/CHAR  button and check the test mode display (Fig. 1).
9. To check the “track mode”, press the  ·P  button to start play. Then press the  DISPLAY/CHAR  button to display the test mode display
(Fig. 2), and check the display.
10. To exit the test mode, press the  1/u  button to turn OFF the power. When “TOC” disappears, disconnect the power plug from the outlet.
If the test mode cannot be exited, refer to “Forced Reset” on page 5.
Fig. 1 Reading the Test Mode Display (During recording and stop)
RTs@@c##e**
Fluorescent display tube display
@@: Cause of retry
## : Number of retries
** : Number of retry errors
Fig. 2 Reading the Test Mode Display (During playback)
@@####** $$
Fluorescent display tube display
@@: Parts No. (name of area named on TOC)
## : Cluster
** : Sector
$$ : Track mode (Track information such as copyright information of each part)
Reading the Retry Cause Display
Hexadecimal
Bit
Binary
Higher Bits
Lower Bits
8
4
2
1
8
4
2
1
b7 b6 b5 b4 b3 b2 b1 b0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
When track jump (shock) is detected
When ADIP address is not continuous
When ADER was counted more than five times
continuously
When DIN unlock is detected
When not in focus
When ABCD signal level exceeds the specified range
When CLV is unlocked
When access operation is not performed normally
Hexa-
decimal
shock
Discontinuous address
ader5
DIN unlock
FCS incorrect
IVR rec error
CLV unlock
Access fault
Cause of Retry
Occurring conditions
01
02
04
08
10
20
40
80
}
Address (Physical address on disc)
Page of 79
Display

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