Sharp DV-550U Service Manual page 19

SRV Step Test( )
Step Test Mode
SRV Step Test( )
ErrDisplay0 ErrDisplay1
DD000200 00000000
DDT step 1 operation
ErrDisplay0 ErrDisplay1
DD000201 00000000
'STILL'
'PLAY' or 'STILL'
'PLAY'
DDT step 2 operation
ErrDisplay0 ErrDisplay1
DD000202 ********
'STILL'
'PLAY' or 'STILL'
'PLAY'
DDT step 3 operation
ErrDisplay0 ErrDisplay1
DD000203 ********
'STILL'
'PLAY' or 'STILL'
'PLAY'
DDT step 4 operation
ErrDisplay0 ErrDisplay1
DD000204 ********
'STILL'
'PLAY' or 'STILL'
'PLAY'
DDT step 5 operation
ErrDisplay0 ErrDisplay1
DD000205 ********
'STILL'
'PLAY' or 'STILL'
'PLAY'
DDT step 6 operation
ErrDisplay0 ErrDisplay1
DD000206 ********
'STILL'
'PLAY' or 'STILL'
ex. DVD mode
ErrDisplay0 ErrDisplay1
DD00E201 EEEEEEEE
(for error)
ErrDisplay0 ErrDisplay1
DD00E202 EEEEEEEE
(for error)
ErrDisplay0 ErrDisplay1
DD00E203 EEEEEEEE
(for error)
ErrDisplay0 ErrDisplay1
DD00E204 EEEEEEEE
(for error)
ErrDisplay0 ErrDisplay1
DD00E205 EEEEEEEE
(for error)
ErrDisplay0 ErrDisplay1
DD00E206 EEEEEEEE
(for error)
'PLAY'
10-4
DDT step 1 operation
Executed till focus of DDT is turned on.
DDT step 2 operation
Track balance adjustment and track
thread on are executed.
DDT step 3 operation
After RF gain is adjusted for a certain
time, the just focus is adjusted.
After end, RF gain adjustment is started
again.
DDT step 4 operation
Focus gain is adjusted.
DDT step 5 operation
Track gain is adjusted.
DDT step 6 operation
On the 2-layer disc, the just focus
adjustment and focus gain adjustment
of layer 1 are done.
On CD, interrupt of SUB-Q is allowed,
TOC is read/set, and mute is turned off.
Servo adjustment value
Reading-out mode
AdjDisplay( )
(0xFF00)
DV-550U