2136 and 2137 Voltages
Voltages (Power Supply cables connected to System Board and Devices)
| +5 Vdc | 4.9 to 5.25 Vdc |
|---|---|
| -5 Vdc | -4.75 to -5.25 Vdc |
| +12 Vdc | 11.52 to 12.6 Vdc |
| -12 Vdc | -10.92 to -13.2 Vdc |
2137 - Power Supply - Map
+---+
|001| START
+---+
- Power off the system unit.
- Check the power cord for continuity. Replace if necessary.
- Check for the correct line voltage from the power outlet, and
verify that the voltage selector switch (if present) is set to
the correct voltage.
- Power on the system unit.
+---+
|002|
+---+
DOES THE POWER SUPPLY FAN RUN?
(YES, go to Step 003, NO, go to Step 004)
+---+
|003|
+---+
DOES THE SYSTEM FAIL TO SHUT OFF WHEN THE ON/OFF SWITCH IS PRESSED?
(YES, read ahead, NO, go to Step 004)
- You might have a damaged on/off switch cable assembly.
- Disconnect the on/off switch cable assembly connector
from the power supply connector and take an ohm reading.
- Go to Step 007.
+---+
|004|
+---+
- Disconnect the power cord from the back of the system unit.
- Disconnect all power and switch cable connectors from the
system board and power supply.
- Disconnect the power connectors to all drives.
- Make a connection (jumper) between the black and white wires
of the 3-pin standby power control cable.
- Connect any one of the power connector to system board or drive
as power load for driving up power supply.
- Reconnect the power cord.
+---+
|005|
+---+
DOES THE POWER SUPPLY FAN RUN?
(YES, read ahead, NO, go to Step 009)
- With the system powered on and the power supply fan running,
check the voltages of the power supply connectors for the
system board and all drive connectors.
See System Board/HDD/FDD Power-connectors on left screen side.
+---+
|006|
+---+
ARE THE VOLTAGES CORRECT AND DOES THE FAN RUN?
(YES, read ahead, NO, go to Step 009)
- The power supply is working normally.
- If you suspect the on/off switch cable assembly, see Step 003.
- If the fan continues to run when all connectors are plugged
plugged back in, go to 'Undetermined Problems'.
- If the fan stops running when a drive connector is plugged
back in, go to 'Factory-Installed Drive Devices'.
+---+
|007|
+---+
DO YOU HAVE AN OHM READING WHEN THE SWITCH IS PRESSED AND HAVE
AN OPEN READING WHEN THE SWITCH IS RELEASED)
(YES, read ahead, NO, go to Step 008.)
- Replace the on/off switch cable assembly.
+---+
|008|
+---+
- Replace the system board
- END.
+---+
|009|
+---+
- Replace the power supply.
- END.
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