Read Sony NW-E2 / NW-E3 Service Manual online
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SECTION 3
TEST MODE
Setting the Test Mode
To enter the test mode, two methods are available :
1. Entering method with key input.
1. Entering method with key input.
Turn the HOLD switch to ON. While holding down the Bx key, press the following keys in the following order :
VOLUME +
VOLUME +
t VOLUME – t VOLUME – t VOLUME + t VOLUME – t MEGA BASS t MEGA BASS t DISPLAY
Note :
Push each key for less than 3 seconds.
2. Entering method by shorting the test point.
C758
6
R926
R812
3
3
R811
R810
R702
JC704
SL701
(TEST)
Q831
Q832
IC820
1
2
3
5
MAIN BOARD (SIDE A)
Solder brige the test point SL701 (TEST) on the main board and turn on the power.
Releasing the TEST mode
1. When test mode was entered with key input, turn off the power supply.
2. When test mode was entered by shorting the test point, turn off the power supply and open the solder brige of SL701 (TEST) on the main
2. When test mode was entered by shorting the test point, turn off the power supply and open the solder brige of SL701 (TEST) on the main
board.
Configuration of Test Mode
The test mode has the configuration given below.
Bx
: Stop/play key
(+)
: VOLUME + key
(–)
: VOLUME – key
LCD
Check
Ver. /
destination
display
All display
lit
(+)
(–)
All display
off
Flash memory
bad block
check
Bx
Bx
(+)
(–)
(+)
(–)
Destination
setting
Contrast
adjustment
(+)
(–)
Low voltage
check
(–)
(–)
Bx
Bx
(+)
(–)
High DC
detection
detection
check
Low DC
detection
check
(+)
(–)
(+)
Cukoo I/F
Connection
check
(+)
(+)
(–)
USB
check
Test mode
Short : Test mode
Open : Normal mode
Short : Test mode
Open : Normal mode
(
)
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