Sharp 27DV-S100 Service Manual page 74

Pin No. Terminal name I/O
44 EQF I
45 MDI1 I
46 LDO1 O Drive output 1
47 P1TN I
48 P1TP I
49 P1FN I
50 P1FP I
51 LDP1 I
52 P1DI I
53 P1CI I
54 P1BI I
55 P1AI I
56 GNDR –
57 LDP2 I
58 P2AI I
59 P2BI I
60 P2CI I
61 P2DI I
62 GNDS –
63 P2FP I
64 P2FN I
• Block Diagram
P1FN 49
P1FP 50
LDP1 51
P1DI
52
P1CI 53
P1BI
54
P1AI 55
GNDR
56
LDP2 57
P2AI
58
P2BI
59
P2CI
60
P2DI
61
GNDS
62
P2FP
63
P2FN
64
Operation function
Frequency adjustment
Monitor input 1
TE–input (DVD)
TE+input (DVD)
FE–input (DVD)
FE+input (DVD)
APC polarity 1
D input (DVD)
C input (DVD)
B input (DVD)
A input (DVD)
GND terminal (RF)
APC polarity 2
A input (CD)
B input (CD)
C input (CD)
D input (CD)
GND terminal (Servo)
FE+input (CD)
FE–input (CD)
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
APC1
sel-RF
R-gain
Adjust
sel-PD
F-gain
Adjust
F-gain
Adjust
sel-PD
sel-PD
T-gain
Adjust
APC2 Vref
1 2 3 4 5 6 7
Terminal DC Voltage(TYP.)
VrD
–
–
VrA
VrA
VrA
VrA
–
VrA
VrA
VrA
VrA
–
–
VrA
VrA
VrA
VrA
–
VrA
VrA
Output
Amp
DC
EQ
FB
RF Ripple
creation
mode-IC
FEB
sel-FE
FE-gain
FE creation
Adjust
DPDB
sel-TE
TEB
DPD-TE
creation
TE-gain
sel-DPD
Adjust
mode-TE
3Beam-TE
creation
TEB Level
detect
sel-LVL
TCC1
constant
VrA
tcc1 (BUS) adjustment
BUS
8 9 10 11 12 13 14 15 16
75
27DV-S100
27DV-CS10
Remarks
When EQF is raised, shift to the
high frequency side occurs.
Adjusting range: GND - Vdd
Positive polarity when this terminal
is connected to Vcc.
Positive polarity when this terminal
is connected to Vcc.
32 RFS
31 VccR
RFOp
30
29 RFOn
RPP
28
27 RPB
RPO
26
25 RPZ
NC
24
VccS
23
DFTN
22
FEO
21
TEO
20
LVL
Time 19
VccP
18
VCKF
17