Sanyo FISHER DVD-1500 Service Manual page 58

IC BLOCK DIAGRAM & DESCRIPTION
IC501 TA1254AF(RF SIGNAL PROCESSER)
48 47 46 45 44 43
P1FN 49
APC1
P1FP
50
LDP1 51
P1DI 52
sel-RF
P1CI R-gain
53
Adjustment
P1BI
54
P1AI
55
F-gain
GNDR 56
Adjustment
LDP2 57
F-gain
P2AI
58
Adjustment
sel-PD
P2BI
59
P2CI
60
P2DI 61
T-gain
GNDS 62 Adjustment
P2FP 63
APC2
P2FN
64
1 2 3 4 5 6
IC501 TA1254AF(RF SIGNAL PROCESSER)
PIN
SYM. I/O FUNCTION
NO.
1 GND - GND
2 I
P2TP TE+(CD)
3 P2TN I TE-(CD)
4 LDO2 O DRIVE
5 MDI2 I MONITOR
6 VrA O ANALOG VREF
7 VrD O DIGITAL VREF
8 Vdd I POWER SOURCE
9 DPAC - DPD AC COMBINATOIN CAPACITY 1
10 DPBD - DPD AC COMBINATION CAPACITY 2
11 DPD1 - DPD INTEGRAL CAPACITY 1
12 DPD2 - DPD INTEGRAL CAPACITY 2
13 SCB I CONTROL LINE(BIT CLOCK)
14 SCL I CONTROL LINE(LATCH SIGNAL)
15 SCD I CONTROL LINE(SERISL DATA)
16 I
VRCK REFERENCE CLOCK
17 VCKF - TIME CONSTANT
18 VccP - POWER SOURCE
19 LVL O SERVO ADDITION
20 TEO O TE
21 FEO O FE
22 DFTN I DPD DEFECT
23 VccS - POWER SOURCE(SERVO)
24 RPZ O RF RIPPLE CENTER VOLTAGE
25 RPO O RF RIPPLE
26 RPB O RF RIPPLE BOTTOM
27 RPP O RF RIPPLE PEAK
28 RFO O EQUALIZING RF
-
29 NC NO CONNECTION
30 - NO CONNECTION
NC
31 VccR - POWER SOURCE(RF)
32 DPDB I PIT DEPTH ADJ.
42 41 40 39 38 37 36 35 34 33
32
31
30
29
28
EQ
27
26
RF Ripple
Generation
mode-IC
25
sel-FE
24
FE
FTE-gain
Generation
Adjustment
23
sel-TE
22
sel-DPD
DPDTE
TE-gain
Generation
21
sel-LVL Adjustment
mode-TE
20
Level
3BTE
Detection
Generation 19
Time
18
Constant
BUS
Adjustment
17
7 8 9 10 11 12 13 14 15 16
PIN
TERM.
SYM.
V NO.
- 33
34
VrA
VrA 35
- 36
- 37
2.1[V] 38
- 39
40
- 41
- 42
- 43
- 44
2.2[V] 45
2.2[V] 46
2.2[V] 47
2.3[B] 48
- 49
- 50
VrD 51
VrD 52
VrD 53
- 54
- 55
VrD 56 GNDR
VrD 57
- 58
- 59
2.3[V] 60
- 61
- 62
- 63
VrD 64
IC701 TC9461F(DIGITAL SERVO SIGNAL PROCESSOR)
75 74
DPDB
DVDD 76
VccR
RD 77
NC
DVSS 78
DVR 79
LPF
NC
LO 80
RFO DVDD 81
TEST1 82
RPP
TEST2 83
TEST3 84
RPB
BUS0 85
RPO BUS1 86
MICRO-
COMPUTER
BUS2 87
INTERFACE
RPZ
BUS3 88
VDD 89
VssS
VSS 90
DFTN
BUCK 91
/CCE 92
FEO
TEST4 93
/TSMOD 94
TEO
/RST 95
LVL TEST0 96
/HSO 97
VccP
AUDIO OUTPUT
/UHSO 98
CIRCUIT
EMPH 99
VCKF
LRCK 100
1 2
I/O FUNCTION
TEB I TE BALANCE
I
FEB FE BALANCE
PSC I VRCK DIVIDING
Vcc2 - POWER SOURCE
NC - NO CONNECTION
EQD I GROUP DELAY CORRECTION
GND2 - GND
RFDC - DC FADE BACK
RFA O RF ALL ADDITION
EQB I BOOST ADJ.
EQF I FREQUENCY CONTROL
MDI1 I MONITOR
LDO1 O DRIVE
P1TN I TE-
P1TP I TE+
-
NC NO CONNECTION
P1FN I FE-
P1FP I FE+
LDP1 I APC POLARITY 1
P1DI I D(DVD)
P1CI I C(DVD)
P1BI I B(DVD)
P1AI I A(DVD)
- GND
LDP2 I APC POLARITY 2
P2AI I A(CD)
P2BI I B(CD)
P2CI I C(CD)
P2DI I D(CD)
- GND(SERVO)
GNDS
P2FP I FE+(CD)X
P2FN I FE-(CD)
- 73 -
73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57
1 BIT
SERVO
DAC
CLOCK
CONTROL
GENERATOR
DIGITAL
ROM
EQUALIZER
SDDRESS
CIRCUIT AUTOMATIC
A/D
CONTROL
RAM
CIRCUIT
CLV SERVO
16k RAM
CORRECT
CIRCUIT
SYNCHRONIZING
SIGNAL PROTECT
EFM DEMOJULATION
PWM
DIGITAL OUT
SUB CODE
DEMOJULATION
PLL TMAX
STATUS
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
TERM.
V
VrD
VrD
-
-
VrD
VrD
-
-
2.2[V]
VrD
VrD
-
-
VrA
VrA
-
VrA
VrA
-
VrA
VrA
VrA
VrA
-
-
VrA
VrA
VrA
VrA
-
VrA
VrA
56 55 54 53 52 51
50 DMO
49
FVO
48
FMO
PWM
47 TEBC
46 RFGC
45 VREF
44 TRO
D/A
43
FDO
42 TEZI
+
-
41 TEI
40 TSIN
39 SBAD
38 FEI
+
-
37 RFRP
36 RFZI
+
-
35 RFCT
34 AVDD
DATA 33 RFI
SLICER
32 SLCO
31 AVSS
30 VCOF
VCO
29 VCOREF
28 PVREF
+
27 LPFO
-
26 LPFN
20 21 22 23 24 25