Sony PMC-D305, Руководство по обслуживанию

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1.3
±
0.2 Vp-p
– 69 – – 70 –
4.8 Vp-p
16.9344 MHz
4.8 Vp-p
240 ns
6.7 Vp-p
280 ns
5 Vp-p
22.6
µ
s
Approx. 50 mVp-p
Approx. 50 mVp-p
36
PHD2 PHD1 PHD
33
LD
32
RF M
31
RF O
30
RF I
29
CP
28
CB
27
CC1
26
CC2
25
FOK
24 SENS
23 C. OUT
22 XRST
21 DATA
20 XLT
19 CLK
18 VCC
17 ISET
16 SL 0
15 SL M
14 SL P
13
12
TA O
TA M
11
FSET
10
TG2
9
TGU
8
SRCH
7
FE M
6
FE O
5
FLB
4
FGD
3
FDFCT
2
FEI
1
FEO
48 VC
47 TDFCT
46 TZC
45 ATSC
44 TEI
43 LPFI
42 TEO
41 VEE
40 EI
39 E
38 F
37 FE BIAS
+
+
–
+
+
–
+
–
+ –
+ – + –
+
– +
+
+
–
+
–
+
–
+
–
+
–
+ –
+
–
+
–
–
+
+
–
–
+
+
–
+
–
+
–
+
–
+ –
APC
–
–
–
–
LEVELS
FOK
MIRR
DFCT
RF IV AMP2
RF IV AMP1
FE AMP
F IV AMP
E IV AMP
TE AMP
FZC COMP
BAL1 BAL2 BAL3
TOG1 TOG2 TOG3
TTL
IIL
IIL
TTL
TTL
IIL
• IIL DATA RESISTOR • INPUT SHIFT RESISTOR
• ADDRESS DECODER
• OUTPUT DECODER
HPF COMP LPF COMP
TZC COMP
DFCT
DFCT
TM1
FS4
ATSC
• WINDOW COMP
• FCS PHASE
COMPENSATION
• TRACKING
• PHASE
COMPENSATION
• ISET
FS1
FS2
TM4
TM5
TM6
TM3
TM7
TG2
• F SET
TG1
TM2
+
–
TOG1-3 FS1-4 TG1-2 TM1-7 PS1-4
BAL1-3
35 34
• Waveforms
– CD Section –
1
IC701
#¡
(RFO)
200 mV/DIV, 500 ns/DIV
2
IC701
$¢
(TI)
100 mV/DIV, 100 ns/DIV
3
IC701
2
(FI)
100 mV/DIV, 100 ns/DIV
4
IC702
@º
(LRCK)
2 V/DIV, 10
µ
s/DIV
5 IC702 @™ (BCK)
2 V/DIV, 200 ns/DIV
6
IC702
@
∞
(XPCK)
2 V/DIV, 200 ns/DIV
7 IC702
#
∞
(XTAO)
2 V/DIV, 50 ns/DIV
• IC Block Diagrams
– CD Section –
IC701 CXA1782BQ
Note: This waveform is measured
between RFO and VC.