Internal Structure Of The Pick-Up; Block Diagram Of The Pick-Up (Hop-7232Tl) - LG RCT689H Service Manual

INTERNAL STRUCTURE OF THE PICK-UP

1. BLOCK DIAGRAM OF THE PICK-UP (HOP-7232TL)

CD-VR
DVD-V
R
DVD-LD
CD-LD
C6
C7
Disc side
EF4
8
EF1
9
Ao
10
Bo
11
EF2
12
RF+
13
RF-
14
IC2 FM
-
5
+
In
6
High Out High Gain ¡ High
Low Gain ¡ Low
7
Low Out
-
8
+
Vref
C5
C4
C3
C2
IC1
LDD
14 13 12 11 10 9
15
ENBL W1dis+
16
Vdd2
17
IOut2 W2dis+
18
Gnd
19
IOut1
20
Vdd1 W3dis+
21
OutSel
22
23 24 25 26 27 28
R11
C9
C8
FB2
IC3
OEIC
Gnd
7
F4 F1
Do
6
F3 F2
C18
Vcc
5
C19
D A
Vc
4
C B
Co
3
E4 E1
EF3
2
E3 E2
Sw
1
Top View
5-25
4
Out
R14 0
3
SW
R15 0
2
C16
Gnd
Rd
1
Vcc
C17
R8
R7
R6
R5
R4
C1
8
R3
7
6
W1dis-
5
R2
4
W2dis-
Gnd 3
2
1
W3dis-
R1
R12
C15
R16
Thermist
C10 C11
FB1
Tilt-
1
Tilt+
2
TR-
3
TR+
4
AF-
5
AF+
6
Gnd(FM)
7
FM
8
Vref
9
SelCD
10
Vcc(FM)
11
ENBL
12
IR
13
I1
14
I2
15
I3
16
Gnd(LDD)
17
W1DIS
18
W1DISN
19
Vdd(LDD)
20
W2DIS
21
W2DISN
22
Gnd(LDD)
23
W3DIS
24
W3DISN
25
Vdd(LDD)
26
OSCEN
27
OSCENN
28
Gnd(Temp)
29
Temp
30
Gnd(OEIC)
31
RF-
32
RF+
33
Vc(OEIC)
34
E2+F2
35
C
36
A
37
E1+F1
38
E4+F4
39
D
40
B
41
E3+F3
42
Gnd(OEIC)
43
Vcc(OEIC)
44
GainSw
45