Flowchart At Ng (Self-Diagnosis Failure) - Sony PCS-G70N Service Manual

4-1-5. Flowchart at NG (Self-diagnosis failure)

BT-01
Are the connection of
No
cable and connector, and
the communication setting
conditions correct?
Yes
No
Is the following prompt
displayed?
Yes
No
Is the command prompt
"command>"?
Yes
Check the power supply
No
Is FB101/CPU-382
+3.3 V (±10%)?
Yes
Check the power supply No
Is R117/CPU-382
+1.5 V (±10%)?
Yes
No
Check the clock
Is pin 5 of IC103/CPU-382
20 MHz?
Yes
Check the IC101/CPU-382,
or the peripherals.
4-8 (E)
Set correctly.
Check the followings
. Boot Data of flash
memory
(If erased, rewrite the data.)
. IC201, IC203/CPU-382,
or the peripherals
. IC302, IC402/CPU-382,
or the peripherals
. Bus buffers
(IC2209-IC2216/CPU-382)
or the peripherals
Not able to start Diag mode
(Start Diag mode directly by
turning on the power while
pressing [CTRL]+D keys.)
Check the
IC2404/CPU-382,
or the peripherals.
Check the
IC2403/CPU-382,
or the peripherals.
Check the
IC103, IC111/CPU-382,
or the peripherals.
PCS-G70N/G70NP/G70NP2
PCS-G70S/G70SP