Denon DN-T645 Service Manual page 24

AN8785SB
(IC202)
1 28
7 22
8 21
14 15
AN22002A
(IC203)
1
32
16 17
L: All mute
Hiz: ch2,4 ON
[ Loading ] [ Traverse ]
H: Active
Standby PVcc2 D2- D2+ D4-
M
16 10 12 11
18
Standby
Band-gap
Vcc/Vref
- + - + - +
Reser Circuit
1.25V
- +
7
9 8
IN2+
ch.4 SW
0.1µ
(2.5V)
H:2.5V
L or
:Vref
IN2-
HIZ
RFN
4
RFOUT
RF_EQ
A
+
C
-
A
32
AMP
B
C
+
31
D
-
B
30
AMP
D
29
F
-
27
AMP
E
E
- F
28
AMP
VREF
17
24
[ Others ]
[ Spindle ] [ Focus ]
D4+ D3- D3+ PVcc3 D1- D1+
M M
17 14 13 1
19 28
- + - + - + - + - +
- + - + - +
switch
21 15 20 23
IN3 IN1
IN4 PGnd2 PGnd1
CAGC ARF CBD0 BD0 C0FTR 0FTR
5 6 7 8 11 12
AGC BD0
NRFDET
GCA BCA
SUB
GCA BCA
SUB
GCA BCA
BCA
GCA
24 26 25
GND
DN-T645/625
[ Tracking ]
D5- D5+ PVcc1
26 25
24
Protection
Circuit
4
IN-
- +
- +
5
IN+
3
OUT
- +
6
Vref
27 2 22
IN5 SVcc SGnd-Fin
13 14
0FTR
9
CEA
3TENV
10
3TOUT
15
NRFDET
FEN
22
-
23
FEOUT
TEN
21
-
20
TEOUT
TEBPF
19
VDET
VDET
18
-
2
LD
PD
1
16 3
VCC
24