Read Sony CHC-CV40 / HCD-CV40 Service Manual online
52
52
HCD-CV40
• Waveforms
– BD Board –
– MAIN Board –
3.2 Vp-p
30.5 s
2.9 Vp-p
1 V/DIV, 40 ns/DIV
62 ns
1 V/DIV, 10 s/DIV
9
IC401
qa
(XCOUT)
q;
IC401
qd
(XOUT)
– TC Board –
12.1 Vp-p
12.8 s
qa
Q642 collector
(TAPE REC mode)
5 V/DIV, 4 s/DIV
IC102
AN41020A
• IC Block Diagrams
– BD Board –
100 mV/DIV, 20 s/DIV
1
IC103
qg
(RFAC)(CD Play mode)
200 mV/DIV, 400 ns/DIV
1.1 Vp-p
2
IC103
qk
(TE)(CD Play mode)
3
IC103
qh
(FE)(CD Play mode)
100 mV/DIV, 20 s/DIV
0.4 Vp-p
0.3 Vp-p
– VIDEO Board –
1 V/DIV, 100 ns/DIV
4
IC505
<zb/>
(XTAO)
1 V/DIV, 10 ns/DIV
5
IC505
<z,x>
(C4M)
1 V/DIV, 20 ns/DIV
6
IC505
<x/m>
(CLKB)
8
IC307
5
(OUTSAG),
6
(OUT)
(AV test mode)
7
IC505
u;
(DRCK)
1 V/DIV, 10 ns/DIV
1 V/DIV, 20 s/DIV
3.8 Vp-p
3.1 Vp-p
3.6 Vp-p
29.5 ns
236 ns
3.6 Vp-p
37 ns
2.3 Vp-p
H
18.5 ns
IC103
CXA2581N-T4
RW/ROM
RW/ROM
EQ ON/OFF
VOFST
VOFST
DVC
VC
VC
VC
RW/ROM
VC
DVC
30
29
28
+
–
+
–
DVC
VCC
DVC
27
26
25
24
RW/ROM
EQ
23
22
21
20
19
RFAC
VCA
VCC
+
–
DVC
+
–
+
–
RW/ROM
VC
RW/ROM
DVC
+
–
3
A
B
C
D
B
C
C
A
A
A
B
C
C
D
B
C D
D
+
–
1
2
APC AMP
5
6
7
8
9
4
RFAC
SUMMING
AMP
RW/ROM
APC-OFF
(Hi-Z)
RW/ROM
(H/L)
VOFST
VC
RW/ROM
+
–
10
11
GM
GM
18
17
16
B
D
A
C
13
14
15
12
EQ IN
LD
PD
GND
A
B
C
D
AC SUM
E
F
DVCC
DVC
RFAC
SW
DC OFST
RFDCI
RFDCO
VC
RFC
VFC
BST
RFG
VCC
CEI
CE
TE BAL
TE
FEI
FE
1
2
3
4
5
6
7
9
8
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
16
17
18
19
20
15
14
13
12
11
10
PGND1
PGND1
DIRECTION
DETECTION
DIRECTION
DETECTION
RESET CIRCUIT
.STANDBY
.BAND-GAP
.SVCC
DIRECTION
DETECTION
DIRECTION
DETECTION
PVCC/2
PVCC/2
PVCC/2
PVCC1
PVCC1
VO2+
VO1+
VO1-
IN1+
IN1-
OPO1
OPO2
SGND
IN2+
IN2-
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
VO2-
PGND2
PGND2
ST
ANDBY
PVCC2
PVCC2
VO3-
VO4-
VO4+
VREF
IN4
IN4R
IN3+
SVCC
OPO3
IN3-
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
VO3+
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