Sony DWT-B30, Service Manual

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3-15 (E)
DWT-B30
3-4.
Checking when Replacing or Removing Parts
When replacing or removing parts, perform adjustments and checks according to the following table.
O
:
Perform adjustments and checks referring to applicable sections.
_
:
No checking is needed.
t .
“Repair” is required when a board and parts (including onboard parts) have been replaced.
.
“Remove” is required when a board or parts, have been replaced.
Cabinet parts
Remove/Replace
Remove/Replace
DPR-396 board
Remove
Replace
Remove
Replace
CN-4078 board
CN4148 board
Remove
Replace
LED-498 board Remove
Replace
Remove
Replace
Battery terminal
assembly
TX-172 board
Remove/Replace
RM-215 board
CN-4088 board
Antenna
Organic EL
Parts indicator
element
Parts
Refer to section 4-2-1.
DC Current Measurement
4-2-2.
RF Performance Check
4-2-3.
Audio Circuit Performance Check
4-2-4. RF Remote Performance Check 4-3-1. Sound Output Check 4-3-2. Radio W
ave Check
4-3-3. Indicator Lighting Check 4-3-4. RF Remote Operation Check
1. Measurement of transmission power 2. Check of transmission frequency 3. Measurement of BER (bit error rate) 4.
Chec
k o
f spec
tr
um
ma
sk
(UC
/CE
mo
del
only
)
5. Measurement of spurious
Remove
Replace
Remove
Replace
5-4. Firmware Update