DOWNLOAD Sony DCR-DVD403 / DCR-DVD403E / DCR-DVD803 / DCR-DVD803E (serv.man3) Service Manual ↓ Size: 1.04 MB | Pages: 82 in PDF or view online for FREE

Model
DCR-DVD403 DCR-DVD403E DCR-DVD803 DCR-DVD803E (serv.man3)
Pages
82
Size
1.04 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie / SECTION 6 ADJUSTMENTS
File
dcr-dvd403-dcr-dvd403e-dcr-dvd803-dcr-dvd803e-sm3.pdf
Date
PREV: Sony DCR-DVD403 / DCR-DVD403E / DCR-DVD803 / DCR-DVD803E (serv.man2) Service Manual

Sony DCR-DVD403 / DCR-DVD403E / DCR-DVD803 / DCR-DVD803E (serv.man3) Service Manual ▷ View online

6-61
DCR-DVD403/DVD403E/DVD803/DVD803E
2-8-2.
Diagnosis
Terms
FE: Focus Error
TE: Tracking Error
PD: Photo Detector
BLER: Block Error Rate
Wobble: Meander of a guide groove made in a disc in advance. The address information, etc. can be obtained by the wobble.
DPP: Differential Push Pull (A method for detecting the TE)
-R Seek
Purpose
Check the seek performance
when DVD-R disc is used
(Seek between 2 points) x 6 x 2
patterns = Total time
Trouble Symptom
Cause
MD block
MD board
Repair
Replace and readjust
Replace and readjust
-R Read
Purpose
Check the read performance
when DVD-R disc is used
RF Jitter (DSP Jitter), BLER,
LPP Error
Trouble Symptom
Cause
OP age-based change
MD board
Repair
Readjust
Readjust
-R Write
Purpose
Check the write performance
when DVD-R disc is used
Wobble Jitter, RF Jitter (DSP
Jitter), BLER
Trouble Symptom
Cause
OP age-based change, Faulty
mechanism
Repair
Readjust
Jitter NG 
→
 Replace MD
Jitter OK, Wobble NG 
→
Readjust 
→
 NG 
→
 Replace MD
-RW Seek
Purpose
Check the seek performance
when DVD-RW disc is used
(Seek between 2 points) x 6 x 2
patterns = Total time
Trouble Symptom
Cause
Repair
-RW Read
Purpose
Check the read performance
when DVD-RW disc is used
RF Jitter (DSP Jitter), BLER,
LPP Error
Trouble Symptom
Cause
Repair
-RW Write
Purpose
Check the write performance
when DVD-RW disc is used
Wobble Jitter, RF Jitter (DSP
Jitter), BLER
Trouble Symptom
Cause
Repair
Sensor
Purpose
Check various sensors
(Dew sensor, Temperature
sensor, Shock sensor)
Disc type check
Trouble Symptom
Cause
CPU port broken
Faulty sensor
Both mechanism and board
Repair
Replace the board
Temperature sensor 
→
 OP
Dew sensor 
→
 Connector
Shock sensor 
→
 WG5, Sensor
6-62
DCR-DVD403/DVD403E/DVD803/DVD803E
+RW Seek
Purpose
Check the seek performance
when DVD-RW disc is used
(Seek between 2 points) x 6 x 2
patterns = Total time
Trouble Symptom
Cause
Repair
+RW Read
Purpose
Check the read performance
when DVD-RW disc is used
RF Jitter (DSP Jitter), BLER,
ADIP Error
Trouble Symptom
Cause
Repair
+RW Write
Purpose
Check the write performance
when DVD-RW disc is used
Wobble Jitter, RF Jitter (DSP
Jitter), BLER
Seek Check
Read/Write
Trouble Symptom
Specification of seek time
Specification of RF Jitter,
BLER, etc.
Cause
Repair
2-axis operation check
Purpose
Trouble Symptom
Cause
MD block
Driver IC
WG5
Repair
Additional power output check
Purpose
Read power, Write power
Trouble Symptom
Cause
Check flexible board
OP
RF IC
Repair
6-63
DCR-DVD403/DVD403E/DVD803/DVD803E
2-8-3.
Power Adjust
Terms
FE: Focus Error
TE: Tracking Error
PD: Photo Detector
BLER: Block Error Rate
Wobble: Meander of a guide groove made in a disc in advance. The address information, etc. can be obtained by the wobble.
DPP: Differential Push Pull (A method for detecting the TE)
Preset & Power Meter
Purpose
Initialize adjustment data
Power meter Q8230 initialization
Trouble Symptom
Cause
Faulty Flash IC
Faulty connection to power
meter
Repair
Replace the Flash IC
Check connection to power
meter, Check power supply
Read Power
Purpose
Adjust the read power
Trouble Symptom
Cause
Faulty connection to power
meter
Faulty installation of power
sensor jig
OP
RF IC
Repair
Check connection to power
meter, Check power supply
Check installation of power
sensor jig
Check flexible board, Replace
MD block
Replace IC
R Write Power
Purpose
Adjust the DVD-R write power
Trouble Symptom
Cause
Faulty connection to power
meter
Faulty installation of power
sensor jig
OP
RF IC
WG
Repair
Check connection to power
meter, Check power supply
Check installation of power
sensor jig
Check flexible board, Replace
MD block
Replace IC
Replace IC
R OFF Power
Purpose
Adjust DVD-R OFF power
(cooling power)
Trouble Symptom
Cause
Faulty connection to power
meter
Faulty installation of power
sensor jig
OP
RF IC
WG5
Repair
Check connection to power
meter, Check power supply
Check installation of power
sensor jig
Check flexible board, Replace
MD block
Replace IC
Replace IC
RW Erase Power
Purpose
Adjust the erase power of
DVD-RW/DVD+RW
Trouble Symptom
Cause
Faulty connection to power
meter
Faulty installation of power
sensor jig
OP
RF IC
WG5
Repair
Check connection to power
meter, Check power supply
Check installation of power
sensor jig
Check flexible board, Replace
MD block
Replace IC
Replace IC
6-64
DCR-DVD403/DVD403E/DVD803/DVD803E
ANMON & RW Bias Power
Purpose
Adjust the constant for laser
power staring characteristic
when DVD-R writing starts.
Adjust bias power of DVD-RW/
DVD+RW
Trouble Symptom
Cause
Faulty connection to power
meter
Faulty installation of power
sensor jig
OP
RF IC
WG5
Repair
Check connection to power
meter, Check power supply
Check installation of power
sensor jig
Check flexible board, Replace
MD block
Replace IC
Replace IC
RW Peak Power
Purpose
Adjust peak power of
DVD-RW/DVD+RW
Trouble Symptom
Cause
Faulty connection to power
meter
Faulty installation of power
sensor jig
OP
RF IC
Repair
Check connection to power
meter, Check power supply
Check installation of power
sensor jig
Check flexible board, Replace
MD block
Replace IC
Shock Sensor
Purpose
Check operation of Shock
sensor
Trouble Symptom
Cause
Faulty sensor
CPU port broken
Repair
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