Sanyo MCD-Z110F Service Manual page 9

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I
IC BLOCK DIAGRAM & DESCRIPTION
ICI 102
LA9250M((Analog
Single Processor)
6
'w
II
TE
7
LG$'9
8
1
4s
2
47
..?
4s
4
4s
44
43
42
41
s
40
10
39
71
38
37
11
3s
13
3s
44
34
Ss
15
16
I
I
I
I
I
1 1
1
1
1
I
1
,
.
17
18
19
20
212223
24
25 2s
27
No.
Pin Name
Function
1
FTN2
P!ck-up photo-diode connection pin. Addad to FTN! Pm to generate the
RF signal, subtracted from FTN 1 pm to generate the FE signal.
2
FTN 1
Pmk-uD vhotodlode connection oin.
I
3
I
E
Pick-up photo-diode connecfico pin. Subtracted from F pinto generate
the TE signal.
I
4
F
Pick-up phatodtie
connection pin,
5
TB
TE signal DC compment
input pin.
6
TE-
PIN which connect the TE sgnal gain setting resistor between this pin
and TE oin,
7
TE
TE signal output pin.
8
TSEI
TES(Track
Error Sense)comparator
input pin. The TE signal is input
thorough a band-pass frlter.
9
Scl
Shock detection input pin.
10
TH
Tracking gam time constant setting pin.
11
TA
TA amplifier output pin.
12
TD-
Pin for conflgumrg the tracking phase compensation constant between
the TD and VR pm.
13
TD
Tracking phase compensation setting pin.
14
JP
Tracking jump signal(kick pulse) amplitude setting pin.
15
TO
Tracking control signal output pm.
16
NC
No connecticm
17
FD
Fixusmg control signal output pin.
18
FD-
Pin for canfigunng the focusing phase between the FD and FA pins.
19
FA
Pin for configuring the focusing phase compensation constant the FD-
and FA- tins.
2)
FA-
Pm for configuring the focusing phase compensation mnsfant between
the FAS and FE pins.
21
FE
FE signal output pin.
z
FE-
Pin wlvch connects the FE signal setting resistor between this pln and
FE pin.
1
1
a
.9
I Inverted ouiput of CLV pin signal.
24 I
SPG ]
12-cm sDlndle mode aain settirra res!star connection gin.
Z5
I
sP-
ISpindle phase compensation constant pin, afong with SPD pin.
a
SPD
I Soindle
control sional outmd Din.
.=,
!
27
I
S4EQ
]-"
Sled phase compensation constant connection pin.
a
SLD
Sled control sgnal oulput pin.
29
SL-
Input pm for sled movement signat from microprocessor.
3)
SL+
Input pm for sled movement signal from microprocessor.
31
Osc
Pin
for setting oscillating frequency.
32
NC
No connection.
28
2S%
3? 32
No.
PIN NAME
Function
?3
SLOF
Sled servo off control input pin.
24
TGRF
Pin for setting the function oiioft, whkh function is tracking gain
following to RF level.
26
sFa
Switch control pin for spindle 8cm/12cm mode.
.36
EFBAL
E/F balance control signal input.
37
FSTA
Focus search control signal input.
J
I 33
[
fASER
lLaser otioff control inmh
I
33
NC
No connactlan.
43
TJP
Input pm for tracking jump signal from DSP.
41
TGL
Input pm for tracking gain control signal from DSP. Gain is low when
TGL is high.
42
TOFF
Input pin far tracking off control signal from DSP. Tracking servo is off
when TOFF is high.
43
TES
OutDut Din for TES sianal to DSP.
I
44
I
HFL
The High Frequency Level is used to determine 'whether the main beam
is positioned over a pit or over the mirrored surface.
45
CLV
Input pm for CLV error signal from DSP.
46
GND
GND
47
RF
RF output pin.
46
RF-
RF gain setting and EFM signal 3T compensation constant setting pin,
afana with the RF Din.
49
SLC
Shce Level Control is an output pm that control the date slice level used
by the DSP for the RF wave-form.
9
SLI
Input pin used by DSP far controlling the date sfice level.
I
54
I
TBC
Tracking Balance Control; =F balance adjustment variable range
setting pm.
I
I
55
I
FSS
Focus Search Selecc focus search mede(+-search
/ + search vs. the
reference voltage) switching pin.
I
53
Vcc
Vcc
57
REFI
By-pass capacitor connection pin for reference voltage.
58
VR
Reference vokage outpui pin.
Et2
LF2
DISC defect detection time constant setting pm.
63
PHI
RF signal peak hold capacitor connection pin.
61
BH1
RF stanal bottom hold caoacltor connection oin.
16?1
LDD
!APC CirCUltOutDut Din.
I
63
I
LDS
IAPC ctrcult Input pin.
64
NC
No connection.
L
-8-

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