Sony PCS-1500 Service Manual page 183

A-7
Cause of the
error is "PutByte
TIMEOUT"?
NO
Replace IC301 and IC302
A-9
LED indicator
that does not turn on or
flash is the following
LED?
STANDBY LED
Does not turn on
NO
Does not flash
NO
There is no problem
PCS-1500/1500P
YES
IC300 [33] = 40 MHz?
YES
IC300 and its peripheral
POWER LED
YES
D908, Q908 or their peripheral
YES
IC905, Q909, IC750 or their peripheral
NO
Replace X300
Does not turn on
NO
Does not flash
NO
There is no problem
4-2. Self-diagnostics Function
YES
D907, Q910, IC906 or their peripheral
YES
IC905, Q911 or their peripheral
4-53