Read Sony DCR-DVD406E / DCR-DVD408 / DCR-DVD408E / DCR-DVD506E / DCR-DVD508 / DCR-DVD508E / DCR-DVD808 / DCR-DVD808E / DCR-DVD908 / DCR-DVD908E (serv.man5) Service Manual online
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DCR-DVD406E/DVD408/DVD408E/DVD506E/DVD508/DVD508E/DVD808/DVD808E/DVD908/DVD908E_ADJ
Sensor
Purpose
Trouble Symptom
Cause
Repair
Faulty OP
Replace the MD block
Faulty Driver IC
Replace the MD board
Faulty connection of flexible
board
board
Check flexible board
Faulty OP
Replace the MD block
Faulty sensor, Faulty
connection of flexible board
connection of flexible board
Temperature sensor
t Replace the MD block
Dew sensor
t Check flexible board
Shock sensor
t Replace the MD board
t Replace the MD block
Dew sensor
t Check flexible board
Shock sensor
t Replace the MD board
OP age-based change
Replace the MD block
Faulty operation of
mechanism
mechanism
Replace the MD block
Faulty DSP IC
Replace the MD board
Faulty RF IC
Replace the MD board
Seek
Purpose
Trouble Symptom
Cause
Repair
Check the seek performance
OP age-based change
Readjust
Faulty mechanism
Replace the MD block
Faulty DSP IC
Replace the MD board
Faulty RF IC
Replace the MD board
Read
Purpose
Trouble Symptom
Cause
Repair
Check the read performance
OP age-based change
Readjust
LPP Error Rate, RF Jitter
Faulty mechanism
Replace the MD block
Faulty DSP IC
Replace the MD board
Faulty RF IC
Replace the MD board
Write
Purpose
Trouble Symptom
Cause
Repair
Check the write performance
OP age-based change
Readjust
Faulty mechanism
Replace the MD block
Faulty DSP IC
Replace the MD board
Faulty RF IC
Replace the MD board
Check operation of OP
(Focus, Tracking, Sled,
Spindle)
(Focus, Tracking, Sled,
Spindle)
Check the emission of laser
diode
diode
During LPP/ADIP Error Rate,
RF Jitter
RF Jitter
The following diagnosis is performed with DVD-R, DVD-RW and DVD+RDL
The diagnosis of DVD+RDL is performed with L0/L1 layer each layer.
The diagnosis of DVD+RDL is performed with L0/L1 layer each layer.
Check various sensors
(Dew sensor, Temperature
sensor, Shock sensor)
(Dew sensor, Temperature
sensor, Shock sensor)
(Seek between 2 points)
x
5
x
2 patterns
t Calculation of
average time
average time
Disc type check
(only DVD-R)
(only DVD-R)
2-6-2.
Diagnosis
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