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XL-505H,505E,507E/CP-505,505E,507
IC801 VHiTA2065F/-1:Servo Amp. (TA2065F)
38
TPO
39
TPI
40
10k
TNI
41
10k
TNO
42
30k
FNI
43
FN
30k
FPI
44
FP
LDO
45
MDI
46
5k
5k
RFN
47
500
RFT
48
1
IC601 VHiLA4600//-1:Power Amp. (LA4600)
ch1 input
Small signal
GND
ch2 input
37
36
35
34
10k
10k
68µF
TS
20k
TE
25k
20k
20k
ADD
25µA
RFRP
BOTTOM
20k
PEAK
20k
2
3
4
5
Figure 40-1 BLOCK DIAGRAM OF IC
Standby
7
Standby switch
10
ch1
Input
amp.
R
R
Nf1
RF
9
amp.
R
Nf2
R
ch2
Input
amp.
8
Pop sound preventing block
6
P.P
Figure 40-2 BLOCK DIAGRAM OF IC
33
32
31
30
47k
47k
TS2
24k
12k
TS1
680k
6
7
8
9
Pre-
drive
amp.
f1
TSD protector
f2
Pre-
drive
amp.
– 40 –
29
28
27
26
20k
180k
FMS
47k
BGR
2.8k
LD
10k
3 STATE
DET
MD
FSOSC
100k
FE
33PF
20k
10
11
12
13
V
CC
4
Output
1
amp.
2
Output
3
amp.
Ripple filter
5
Filter
25
DMEO
24
DMEN
23
68k
DMEP
22
SEL
21
V
20
CC
GND
19
1.5k
OSCI
18
COSC
17
FSO
16
FS
FSN
15
70k
14
ch1 output
Large signal
GND
ch2 output
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