Harman Kardon FL 8370 (serv.man3) Service Manual ▷ View online
FL8370
KB9223
M/M-97-P006
1997. 10. 17
PIN DESCRIPTION
Table 1. PIN DESCRIPTION
Pin No.
Symbol
Description
1
MCP
Capacitor connection pin for mirror hold
2
DCB
Capacitor connection pin for defect Bottom hold
3
FRSH
Capacitor connection pin for time constant to generate focus search waveform
4
DCC2
The input pin through capacitor of defect bottom hold output
5
DCC1
The output pin of defect bottom hold
6
FSET
The peak frequency setting pin for focus,tracking servo and cut off frequency of CLV
LPF
LPF
7
VDDA
Analog VCC for servo part
8
VCCP
VCC for post filter
9
GC2I
Amplifier negative input pin for gain and low pass filtering of DAC output CH2
10
GC2O
Amplifier output pin for gain and low pass filtering of DAC output CH2
11
CH2I
The input pin for post filter channel2
12
CH2O
The output pin for post filter channel2
13
CH1O
The output pin for post filter channel1
14
CH1I
The input pin for post filter channel1
15
GC1O
Amplifier output pin for gain and low pass filtering of DAC output CH1
16
GC1I
Amplifier negative input pin for gain and low pass filtering of DAC output CH1
17
RRC
The pin for noise reduction of post filter bias
18
VSSP
VSS for post filter
19
MUTEI
The input pin for post filter muting control
20
ISET
The input pin for current setting of focus search,track jump and sled kick voltage
21
VREG
The output pin of regulator
22
WDCK
The clock input pin for auto sequence
23
SMDP
The input pin of CLV control output pin SMDP of DSP
24
SMON
The input pin for spindle servo ON through SMON of DSP
25
SMEF
The input pin of provide for an external LPF time constant
26
FLB
Capacitor connection pin to perform rising low bandwidth of focus loop
21
FL8370
KB9223
M/M-97-P006
1997. 10. 17
27
FS3
The pin for high frequency gain change of focus loop with internal FS3 switch
28
FGD
Reducing high frequency gain with capacitor between FS3 pin
29
LOCK
Sled runaway prevention pin
30
TRCNT
Track count output pin
31
ISTAT
Internal status output pin
32
ASY
The input pin for asymmetry control
33
EFM
EFM comparator output pin
34
VSSA
Analog VSS for servo part
35
MCK
Micom clock input pin
36
MDATA
Micom data input pin
37
MLT
Micom data latch input pin
38
RESET
Reset input pin
39
MIRROR
The mirror output for test
40
FOK
The output pin of focus OK comparator
61
TGU
The capacitor connection pin for high frequency tracking gain switch
62
TG2
The pin for high frequency gain change of tracking servo loop with internal TG2 switch
63
FEBIAS
Focus error bias voltage control pin
64
DVEE
The DVEE pin for logic circuit
65
PD1
The negative input pin of RF I/V amplifier1(A+C signal)
66
PD2
The negative input pin of RF I/V amplifier2(B+D signal)
67
F
The negative input pin of F I/V amplifier (F signal)
68
E
The negative input pin of E I/V amplifier(E signal)
69
PD
The input pin for APC
70
LD
The output pin for APC
71
VR
The output pin of (AVEE+AVCC)/2 voltage
72
VCC
VCC for RF part
73
RF-
RF summing amplifier inverting input pin
74
RFO
RF summing amplifier output pin
Table 1. PIN DESCRIPTION (Continued)
Pin No.
Symbol
Description
22
FL8370
KB9223
M/M-97-P006
1997. 10. 17
75
IRF
The input pin for AGC
76
EQO
The output pin for AGC
77
RFI
Tne input pin for EFM comparision
78
EQC
The capacitor connection pin for AGC
79
EI
Feedback input pin of E I/V amplifier for EF Balance control
80
GND
GND for RF part
Table 1. PIN DESCRIPTION (Continued)
Pin No.
Symbol
Description
23
FL8370
KB9223
M/M-97-P006
1997. 10. 17
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
Table 2. Absolute Maximum Ratings
Characteristic
Symbol
Value
Unit
Supply Voltage
Vmax
6
V
Power Dissipation
PD
200
mW
Operating Temperature
T
OPR
-20 ~ +70
o
C
Storage temperature
T
STG
-55 ~ +150
o
C
Table 3. Electrical Characteristics
(Ta=25
(Ta=25
°
C, VDD = DVDD = VCC = +5V, VSS = DVSS = GND = VSSP = 0V )
Characteristic
Symbol
Test Conditions
Output
Min
Typ
Max
Unit
Supply Current High
ICCHI
VCC=6V,No load
-
20
40
60
mA
Supply Current Typ
ICCTY
VCC=5V,No Load
-
12
30
48
mA
Supply Current Low
ICCLO
VCC=3.4V,No Load
-
10
25
40
mA
RF Amp Offset Voltage
Vrfo
input open
pin 74
-80
0
+80
mV
RF Amp Voltage Gain
Grf
SG3 f=10KHz,40mVp-p,sine
pin 74
25.1
28.1
31.1
dB
RF THD
Grfmd
SG3 f=1KHz,40mVp-p,sine
pin 74
-
-
5
%
RF Amp Max. Output Voltage
Vrfpp1
SG3 DC 2.7V
pin 74
3.8
-
-
V
RF Amp Min. Output Voltage
Vrfpp2
SG3 DC 2.3V
pin 74
-
-
1.2
V
Focus Error Amp Offset Voltage
Vfeo1
input open
pin 59
-450
-250
-50
mV
Focus Error Amp Auto Offset
Voltage
Voltage
Vfeo2
WDCH=88.2KHz Pulse ,$841
pin 59
-35
0
35
mV
Focus Error Amp PD1 Voltage Gain
Gfe1
SG3 f=10KHz,32mVp-p,sine
pin 59
27
30
33
dB
Focus Error Amp PD2 Voltage Gain
Gfe2
SG3 f=10KHz,32mVp-p,sine
pin 59
27
30
33
dB
Focus Error Amp Voltage Difference
Gfe
∆
∆
Gfe1-
∆
Gfe1
pin 59
-3
0
+3
dB
Focus Error Amp Max. Output
Voltage
Voltage
Gfepp1
SG3 DC 2.7V
pin 59
4.4
-
-
V
Focus Error Amp Min. Output Volt-
age
age
Gfepp2
SG3 DC2.3V
pin 59
-
-
0.6
V
AGC Max Gain
Gagc
SG4 f=500KHz,20mVp-p,sine
pin 76
16
19
22
dB
AGC EQ Gain
Geq
Gain Difference of Gagc at
f=1.5MHz
f=1.5MHz
pin 76
0
1
2
dB
AGC Gain2
Gagc2
SG4 f=500KHz,0.5Vp-p,sine
pin 76
3.5
6
9
dB
AGC Cpmpress Ratio
Cagc
Gain Difference of Gagc2 at
0.1Vp-p
0.1Vp-p
pin 76
0
2.5
5
dB
AGC Frequency
Fagc
Gain Difference
SG4 f=1.5MHz,0.1Vp-p,sine
and f=500KHz,0.1Vp-p,sine
SG4 f=1.5MHz,0.1Vp-p,sine
and f=500KHz,0.1Vp-p,sine
pin 76
-1.5
0
2.5
dB
24
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