Dvd P.w.board Operation(Signal); Circuit Block Of Anti-Defect; Start-Up Program; Disc Type Identification - Sanyo DVD-1500A Service Manual

DVD P.W.BOARD OPERATION(SIGNAL)

B. Circuit block of Anti-Defect
1+
RF

6. Start-up program

A. Disc type Identification
a. In the case of DVD Dual Disc
RF
FDO
FE
SPD
b. In the case of DVD Single Disc
RF
FDO
FE
SPD
Thold
TE
TE
Fhold
FE
FE
1+
TH
3 '
Defct
3
DEF
Def Inh from IC500
PH
PH
BH
BH
Zoom
CD laser
RF
FDO
FE
SPD
Zoom
CD laser
RF
FDO
FE
Peak 0
SPD
1+
TE
Trk EQ
FE
Fcs EQ
DEFECTO
DEFECTI
PH
PH
PH-BH
BH
DVD laser
RF
FDO
Zoom
FE
A : No peak
SPD
DVD laser
RF
FDO
Zoom
FE
Peak 1
SPD
Peak 0 < Peak 1
- 17 -
OR
B : Two peaks