Sony PCS-1500 Service Manual page 169

V.35-1
#ow[|]04000006[|]00↓
#ow[|]14900010[|]AA↓
#ow[|]14900010[|]55↓
Confirm that the registers can
be re-writable by performing
the above described commands.
If the registers are not re-writable,
replace IC105
#ow[|]14900010[|]FF↓
Next, check the LED indicator
on the front panel using the
(*1)
network tool
LED indicators of
ER and RS turn on?
LED indicators
of CRQ and DPR
turn on?
V.35-4
PCS-1500/1500P
(*1) : Sony Part Number : J-6387-400-B
NO
Transceiver block is defective
YES
[Replace IC200 and C210 to
C214] [Replace FL210 and
FL211]
V.35-1
NO
Transceiver block is defective
YES
[Replace IC201 and C215 to
C219] [Replace FL217 and
FL218]
V.35-1
4-2. Self-diagnostics Function
4-39