Sony CDX-540RF - Page 32

3232
INPUT
FWD
REV
VCC2
VLO–
VLO+
VO4+
VO4–
VO3+
VO3–
VO2+
VO2–
VO1+
VO1–
VCC1
VIN1
VIN1–A
VIN1+A
VIN1–B
S-GND
MUTE2
MUTE1
VIN4
VIN4–
VIN4+
VREF-IN
VIN1 (VREF)-SW
VREF-OUT (CH1)
REG-OUT
REG-IN
VIN3+
VIN3–
VIN3
VIN2+
VIN2–
VIN2
VIN1+B
OUTPUT
CONTROL
+
–
+
–
+
–
+
–
+
–
+
–
LEVEL
SHIFT
CH2-4
MUTE
THERMAL SHUT DOWN
CH1
MUTE
VIN1/VREF
SWITCH
5VREG
3
4
5
6
7
8
9
2
1
LEVEL
SHIFT
LEVEL
SHIFT
10
11
14
LEVEL
SHIFT
AMP-A
AMP-B
+
–
15
16
17
18
23
19
34
35
36
+
–
+
–
+
–
+
–
25
24
22
21
20
33
32
31
30
29
28
+
–
27
26
12
13
5 Vp-p
13.4 ms
4.4 Vp-p
83 ns
5.7 Vp-p
470 ns
• Waveforms
– RF Board –
1 IC101 qh (RFO) (CD play mode)
2 IC101 qf (FE) (CD play mode)
3 IC101 qd (TE) (CD play mode)
2 IC101 ia (BCK), is (BCKI)
(CD play mode)
3 IC101 ih (XTAI) (CD play mode)
4 IC101 wf (SCOR),
IC201 is (SCOR) (CD play mode)
5 IC201 ra (EXTAL) (CD play mode)
2 IC781 1 (XOUT) (CD play mode)
3 IC781 qa (FMIN) (CD play mode)
1.4 ± 0.3
Vp-p
Apporx.
63 mVp-p
Approx.
63 mVp-p
– MAIN Board –
1 IC101 uj (LRCK), uk (LRCKI)
(CD play mode)
5.6 Vp-p
22.8 µs
4.1 Vp-p
60 ns
– FM Board –
1 IC701 8 (38K) (CD play mode)
2.9 Vp-p
139 ns
240 mVp-p
11.3 ns
4.1 Vp-p
26.3 µs
• IC Block Diagrams
– RF Board –
IC101 CXA2596M-T6
IC201 LA6576L-TE-L
1
2
3
4
9
10
11
12
5
6
7
8
23
22
20
18
16
15
14
19
17
13
21
APC LD
AMP
APC PD
AMP
RF SUMMING
AMP
FOCUS ERROR
AMP
RF EQ
AMP
AGC
F I-V AMP
E I-V AMP
COMPARATOR
COMPARATOR
TRACKING
ERROR
AMP
HOLD
AGCVTH
LD
PD
VEE
VEE
VCC
F
E
VC
A
B
C
D
LC/PD
24 VCC
LD ON
AGCCONT
RFTC
RFO
RFE
FE
RF BOT
RF I
TE
HOLD SW