Yamaha DVD-S830 Service Manual page 6

A B
DVD-S830
1
SERVO BLOCK DIAGRAM
IC5201
(FEP)
2
CRFHP1
CRFHP2
OPTICAL PICK UP UNIT
3
RFINP
46
RFINN
47
4
VIN5
51
VIN6
52
VIN7
53
PHOTO DETECTOR
VIN8
54
B1 B2 VIN1
58
A1 A2
A4 A3
HEAD
B4 B3 VIN2
AMP
59
VIN3
60
5
VIN4
61
VIN9
62
VIN10
63
LASER DIODE Q5111
LPCO1
6
LD DRIVE 2
LPC1
1
LASER DIODE Q5115
LPCO2
4
LD DRIVE
LPC2
3
7
34
C D
REFNV
PEAK 49
TESTSG
43
DCAGC
31
+
HOLD
-
DCFLT
36
RSCL S LINE
NW
DET
LEVEL
CONT.
FLTOP FLTOP
34
+
-
AGC FLTON FLTON
35
CONT.
FC BOOST
+
CONT. CONT.
ENV
- SAG
DET.
-
+
LPF VGA EQ
BDO BDO
22
DET.
+
GD
-
CONT.
LEVEL
CONT.
MIRROR
DET. OFTR
21
LEVEL
CONT.
DPDOFT
DET.
+
-
LEVEL
POFLT
CONT.
AMP
- FS
AMP AMP 13
+
AMP
FBAL
AMP
AMP
-
FE
14
+
HPF FBAL
EQ 7
DEFFER-
COMP.
ENTIAL
TEFLT
PHASE
HPF
DET.
EQ
COMP.
-
HPF TEFLT TE
EQ 11
DEFFER-
COMP. +
ENTIAL
PHASE
HPF DET.
EQ
COMP.
AMP
AMP
RFTE
TBAL 12
AMP
AMP
TBAL
8
AMP
AMP
SEN
18
LPC
AMP
REG SCK
19
LOGIC
STDIO
20
E F G
RF SIGNAL
IC2501
IC2001
(MOTOR DRIVE)
(DSC/ODC)
120 AD3
82 TSTSG
TRVSIN TRIN
TRS-DRV 67 26
-
BIAS1 +
111 ARF TRIN VIN1
DAC 0 114 2
110 NARF
FOIN VIN2
DAC 1 115 3
SPDIN VIN3
SPDRV 68 23
52 BDO
DMV OPOUT
AD5 122 6
51 OFTR
-
FROM LDIN
24 +
IC6001-27,28PIN
AMP AMP
BIAS2
FG1
FG 69
FG2 FG UNIT
FG ENB 56
119 AD2 MUTE3 CH3
TILTP 70 27
MUTE
117 AD0
MUTE12 CH1,2
TILT 71 9
66 FBAL MUTE
118 AD1
IC3001
98 RFDIF
(AV DECORDER)
HDD8 172
81 STD0
168
65 TBAL
166
78
164
76
160
158
73 STD7
151
HDD15 149
55 PWM3
54 PWM2
IN SW
53 PWM1 PWM5 61
H I
MOTOR DRIVE SIGNAL TRACKING ERROR SIGNAL FOCUS ERROR SIGNAL
VO4+
15
-
+
LEVEL
VO4-
SHIFT 16
-
+
OPIN+
4
VO3+
17
-
+
LEVEL
VO3-
SHIFT
18
-
+
OPIN-
5
+
-
IC2501-11,12,13,14
7.2Vp-p(20usec./div.)
-
VO1+
+ 14
LEVEL
VO1-
SHIFT 13
- -
+ +
VO2+
12
VO2-
- 11
+
LEVEL
SHIFT
-
-
+ +
LD CNT
CNT 28
MUTE4
CH4
20
MUTE
FROM
P6005-1PIN
(TRAY OPEN SW.)
SW2501
J
M2502
TRAVERS MOTOR
M2501
SPINDLE MOTOR
OPTICAL PICK UP UNIT
ACTUATOR
TRACKING
COIL
ACT T+
ACT T-
FOCUS
COIL
ACT F+
ACT F-
IC6001
(OPERATION CPU)
TRAY/TRV
47 TRAY/TRV SW
TRAYMUT
31 TRAY-MUTE
TRAY-SW-
37 TRAY OPEN
TRV-SW+
38 TRAY CLOSE