Sony PCS-1500 Service Manual page 181

Firmware SRAM
Workarea SRAM
The system has passed
PCS-1500/1500P
A-6
NO
PASSED?
YES
error occurs when
diagnostics is performed
IC803 to IC812, or their
NO
PASSED?
YES
"workarea SRAM this
NO
all the tests
IC800, IC758 or their peripheral
YES
BRI-2
Replace IC801
The same
NO
again
YES
peripheral
Replace IC802
Perform the
YES
Diag" again,
Passed?
NO
NO
IC800 [39] =
12.288 MHz?
IC750, X750 or their peripheral
YES
4-2. Self-diagnostics Function
Re-start from the
beginning
Re-start from the
beginning
4-51