Technics SL-HD550, Service Manual

Page: 36 / 63

/FLOCK
/TLOCK
76
RSEL
44 ARF
46
DRF
47
41
52
PLLF
48
EFM
53
PCK
14
SQCK
80
SSEL
73
9
MLD
68
MSEL
75
OUTR
PWM
(R)
OUTL
PWM
(L)
MLD
MN662790RSC
IC702
SERVO PROCESSOR / DIGITAL SIGNAL PROCESSOR
DIGITAL FILTER / D/A CONVERTER
PSEL
78
7
+B2
4 50 60
DV
DD
1
AV
DD
2
V
DD
79 80
SSEL
78
PSEL
IOSEL
CLVS
CRC
BLKCK
/CLDCK
SBCK
SUBC
DEMPH
A/D
CONVERTER
INPUT PORT
SERVO TIMING
GENERATOR
DSL
/
PLL
VCO
5 74 51 57
DVss1
A
Vss1
A
Vss2
Vss
16K
SRAM
SERVO
CPU
D/A
CONVERTER
OUTPUT
PORT
VCO
70
66
67
13
62
56
55
BLKCK
SBCK
SUBC
SQCK
SUBQ
15
SUBQ
PLLF2
DSLF
MCLK MCLK
MDATA
8
MDATA
STAT
17
STAT
VCOF2
54
VCOF
49
BYTCK
61
SMCK
19
FCLK
63
CSEL
20
MSEL
79
X2
59 59
X1 FE TE RFENV
32 33 34
FE TE RFENV
TRCRS
VDET
BDO
37 35 39
BDO
/RFDET
OFT
38 36
/RFDET OFT
10 43 40
SENSE WVEL LDON
LDON
FBAL FBAL
TBAL TBAL
FOD FOD
TRD TRD
TVD TVD
VREF VREF
TRV
KICK
DSLF2 DSLF2
DMUTE
BCLK
SRDATA
LRCK
PC PC
ECS ECS
ECM ECM
IPFLAG
FLAG
11
12
30
31
28
27
22
29
21
26
42
16
1
3
2
23
25
24
64
65
6
TX
AV
DD
1
72
V
CC
5V
77 71
/TEST
18
/RST
+B2
+B2
DSLF2
45
IREF
+B2
+B2
+B2
X701
(33.8688MHz)
/RST
+B2
INTERPORATION/
SOFT MUTING/
DIGITAL
ATTENUATION
DIGITAL AUDIO
INTERFACE
DIGITAL AUDIO
INTERFACE
CIRC
ERROR
CORRECTION/
DEINTERLEA
VE
EFM
DEMDULA
TION/
SYNC
INTERPOLA
TION
SUBCODE
DEMODULA
TION
SUBCODE
BUFFER
CD-TEXT
BUFFER
DIGIT
AL
DEEMPHASIS
8
TIMES
O
VERSAMPLING/
DIGIT
AL
FIL
TER
1
BIT
D
A
C
PWM
LOGIC
MICRO
COMPUTER
INTERFACE
TIMING
GENERATOR
PITCH CONTROL
SWITCH-
ING
Q702
Rch
+B2