Sony CDX-540RF - Compact Disc Changer System, Руководство по обслуживанию

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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
µ
s
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
µ
s
• 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