NW-MS6 - Sony Audio Service Manual (repair manual). Page 11

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11
NW-MS6
[Flow Chart of Operations in the Test Mode]
[Items to Check in the Test Mode]
1. ROM/RAM Self-check
After entering the test mode, ROM/RAM self-check is performed automatically in the first place. By entering the test mode with key input,
however, no RAM check is performed.
1
Result of the ROM/RAM check is OK:
The LCD back light turns on, and version and destination is displayed automatically.
2
Result of the ROM check is NG:
“BAD ROM” is displayed on the LCD, and the LCD back light keeps blinking.
3
Result of the RAM check is NG:
Nothing is displayed on the LCD, and the LCD back light keeps blinking
2. Display of Version and Destination
Version and destination are displayed as follows.
Every time the 
[DISPLAY]
 key is pressed, the display changes as “version and destination 
t LCD all lit t LCD all off t version and
destination...”.
Also, pressing the 
[VOLUME+]
 key changes the mode to writing destination, and if pressing the 
[VOLUME--]
 key, the unit goes into the
sleep mode.
Enter the test mode
1. ROM/RAM Self-check
2. Display of version
and destination
3. Writing destination
(Checking voltage and 
consumed electric current)
4. Checking the rated
voltage
5. Checking the LOW BATT
 voltage
6. USB self-check
7. RTC self-check
8. Sleep mode
(Checking consumed electric current)
Waking up with the normal mode
(Waking up with the test mode, if 
the short lands (SL0120) have 
been short)
[DISPLAY]
 key
[DISPLAY]
 key
[DISPLAY]
 key
[MENU]
 key
[MENU]
 key
[MENU]
 key
[MENU]
 key
[MENU]
 key
[VOLUME+]
 key
[VOLUME--]
 key
LCD all off
LCD all lit
any key
v1.00.03JP
display example
Page of 43
Display

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