If it is a NW-A1000 I have a copy of the service manual please download it from
HERE from deposit files..will be active until 29th November 2009, let me know if you need it for longer.
Goto page 9 section 4 TEST MODE.
1. Press HOLD to put the player in hold mode.
2. Hold down LINK and press in order UP, DOWN, OPTION, UP, DOWN, RIGHT, LEFT, RIGHT, LEFT, LEFT, PLAY/PAUSE, OPTION.
3. Press HOLD to turn hold off. You will now be in test mode.
4. Press RIGHT to display menu items
5. Press the UP,DOWN to select the POWER
6. Press RIGHT to select V CHK
7. Press the PLAY key START is displayed and all the power lines will be started.
TP9027: 1.10 ± 0.05 V T
P9023: 1.3 ± 0.1 V
TP9026: 1.8 ± 0.1 V
TP9031: 3.0 ± 0.1 V
TP9018: 3.0 ± 0.1 V
TP9028: 3.3 ± 0.1 VT
P9024: 5.0 ± 0.2 V
You can check these on the main board to see it all are present if one is missing this will be why your walkman wont hold any charge.
LOL
×