Troubleshooting; It Keeps Being Turned Off - Samsung YP-C1 Service Manual

6. Troubleshooting

1. It keeps being turned off

Is the core voltage 1.5V and is
24MHZ OSC CHECK
Is a picture displayed on the
Is the switch in the Hold position?
Is the remaining battery charge
Recover the firmware to connect
6-1
‹
VCC 3.0V?
YES
YES
LCD?
YES
YES
enough?
YES
to the computer.
NO
Check JFET3 drain source voltage.
NO
Check X-TAL1 crystal oscillates at 24Mhz.
Check the connectivity of the LCD connector.
Check that the HOLD switch on the top of the unit is
Replace the batteries.
Check L2 and
set to On.
Samsung Electronics