Sony ICD-P17 Service Manual page 9

3. Sleep test
• Pressing the x•B key causes the set to enter the sleep state.
• Press any keys to exit the sleep state.
x • B
HOLD
SLEEP
4. Beep test
• Beep sound of 1.3 kHz or 2 kHz is output.
x • B
BEEP
STOP
•
•
•
2.0k
1.3k
•
•
•
5. RTC test
• Perform the connection test of the RTC, EEPROM.
x • B
RTC
STOP
(1) RTC EEPROM test
This test checks that any data is written and read to and from
specific registers (verify check) and that data is cleared.
(2) RTC clock function test
This test checks that the time is updated at intervals of 1 second
in the micro processor by the RTC.
• It determines whether a test result is OK or NG.
If NG, it indicates that either device of RTC or EEPROM was
found to be NG.
(All OKs: RTC OK/RTC NG: RTC BAD/EEPROM NG: EEP
BAD)
with
off
SOON
SLEEP
any keys
. / > (SELECT)
x • B (SET)
1.3k
ON ON
1.3k 2.0k
STOP
STOP
ON
RTC
6. Key entry test
• When the any key is pressed, the entry key and the A/D
converted value (hexadecimal) of the two channel keys are
displayed.
KEY IN0 is displayed on the upper side and KEY IN1 on the
lower side.
• When the STOP key is pressed, the A/D value of the key is
displayed while the key is depressed. When the key is released,
the screen returns to the test menu.
x • B
KEY
STOP
7. Battery remaining power test
• The detected A/D value (hexadecimal) of the battery remaining
power is displayed.
x • B
BATT
STOP
8. LED test
• LED ( OPR : orange) are all turned on.
x • B
LED
STOP
ICD-P17
OFF
KEY,OFF
u
AA
BATT
ON
LED
9