Sony FWD-50PX1 (English: pgs. 52-97), Service Manual

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3-4
FWD-50PX1
5. Detecting the EEPROM error
If communication with EEPROM is not established
correctly, “NG” is displayed on the corresponding item.
(1) EEP ID :
ID CODE error
(2) EEP Save : Data write error
(3) EEP Load : Data read error
6. Detecting decrease of the watch backup
power voltage and detecting abnormal
oscillation
If the watch IC does not work correctly, “NG” is displayed
on the corresponding item.
(1) RTC Init : Watch initialization error
(2) FTC VDET : Watch power voltage error (1.8 V or
less)
(3) RTC XSTOP : Watch oscillator error
Service Mode
Service Status
Warning Status
EEP ID
: OK (1)
EEP Save : OK (2)
EEP Load : OK (3)
RTC Init : OK
RTC VDET : OK
RTC XSTOP : OK
PDP Init : OK
DEC Init : OK
DC Init : OK
Power Off : OK
Service Mode
Service Status
Warning Status
EEP ID
: OK
EEP Save : OK
EEP Load : OK
RTC Init : OK (1)
RTC VDET : OK (2)
RTC XSTOP : OK (3)
PDP Init : OK
DEC Init : OK
DC Init : OK
Power Off : OK
7. Detecting chroma decoder initialization error
(1) DEC Init : In the case of the chroma decoder unit
initialization error, “NG” is displayed.
8. Detecting abnormal voltage of the internal
power supply and shutting power supply
down
(1) DC Init : When the internal power supply (digital
system 5 V, digital system 3.3 V or analog
system 6 V) does not start up, “NG” is
displayed.
If any one of these power supplies does not
start up, the shutting-down operation is
activated and this indication is stored in log
after the PDP unit returns to the normal
operation.
Service Mode
Service Status
Warning Status
EEP ID
: OK
EEP Save : OK
EEP Load : OK
RTC Init : OK
RTC VDET : OK
RTC XSTOP : OK
PDP Init : OK
DEC Init : OK (1)
DC Init : OK
Power Off : OK
Service Mode
Service Status
Warning Status
EEP ID
: OK
EEP Save : OK
EEP Load : OK
RTC Init : OK
RTC VDET : OK
RTC XSTOP : OK
PDP Init : OK
DEC Init : OK
DC Init : OK (1)
Power Off : OK