Sony MDS-PC1 Service Manual page 7

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
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)
@@####** $$
Fluorescent display tube display
@@: Parts No. (name of area named on TOC)
## : Cluster
}
Address (Physical address on disc)
** : Sector
$$ : Track mode (Track information such as copyright information of each part)
Reading the Retry Cause Display
Higher Bits
Hexadecimal
8 4 2
Bit
b7 b6 b5 b4 b3 b2 b1 b0
Binary
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 1
0 1 0
1 0 0
:Information such as type of disc played, part played, copyright.
Lower Bits
Hexa-
1 8 4 2 1
decimal
01
0 0 0 0 1
02
0 0 0 1 0
0 0 1 0 0 04
08
0 1 0 0 0
10
1 0 0 0 0
20
0 0 0 0 0
0 0 0 0 0 40
80
0 0 0 0 0
Cause of Retry
shock When track jump (shock) is detected
Discontinuous address
When ADIP address is not continuous
When ADER was counted more than five times
ader5
continuously
DIN unlock
When DIN unlock is detected
FCS incorrect When not in focus
IVR rec error
When ABCD signal level exceeds the specified range
CLV unlock
When CLV is unlocked
Access fault When access operation is not performed normally
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Occurring conditions