JVC KD-S821R Service Manual page 48

CD servo control section
5
4
3
2
1
A
KD-S821R
R504
20k
LD
LD
VCC
SW4 VCC
VF SW4
SW3 VF
SW3
VB
VB
SW1
SW1
VA
VA
SW2
SW2
VE
GND VE
VC
LOADING- VC
LOADING-
LOADING+
MD LOADING+
MD
REST
REST
VREF
SPINDLE+ VREF
FOCUS- SPINDLE+
SPINDLE- FOCUS-
FOCUS+ SPINDLE-
FEED+ FOCUS+
TRACKING+ FEED+
TRACKING+
FEED-
FEED-
TRACKING-
TRACKING-
CN501
QGB2027M1-26S
R533
VREF C533 56p
6.8k
C521
R534 R532 R531
0.01
47k 15k 2.2k
VCC
C522
0.01
R521 47k
VC
R522 47k
VA R523 47k
VB R524 47k
VE R525 100k
VF R526 100k
MD
LD
C523
0.01
C525
0.01
B C
KD-S821R
R508
20k
FO
SP
R507
8.2k
D501
DSK10C
R501
8.2k
R506 D502
DSK10C
0
IC501
LA6567
Q501
C503
2SB1322
22/16
R502
5.6k
R503
2.4k
GND
C571
TP1 100/6.3
RF
TP2
VREF
C572 100/6.3 R-CH
C573
0.01 L-CH
BUS0 BUCK
BUS1 CCE
BUS2
IC521
BUS3
TA2109F
RST
R545
10k
C543
1/50
C541 100/6.3
C526
100/6.3
C542 0.01
R528 22
R527 22
Q521
2SB1322
2-4
D E
R586
R584 33K
R581
C582 4.7/25 R585 12K 1.5K
C584
R-CH
24K 120P
C581
820P
IC581
NJM4565M
C591
820P
C595
100/10
R591 C594
C592 4.7/25 R595 12K
120P
L-CH R596
24K R594 33K
1.5K
C562 0.047
C561 0.047
C564 0.01
C563
C560 0.047
100/6.3
C559
0.047
R554
RFGC
3.3k
C558
C557
R553 15k 560p
100/6.3
C556
R552 1.5k 3300p
TE
SBAD
FE
RFRP
C555 0.033
C554
R551 10k 0.01
C552 0.01 C553
100/6.3 RF
C551 2700p
C550 0.01
C549
100/6.3
R550 C548
33k 0.015
IC541
R549 470k TC9462F
R548 68k
C545
0.01 R546 R547
C544 C546 10k 47k
100/6.3
C547 47p
100/6.3
CD signal
F G
9V
CD.R
GND
CD.L
REST
SW1
SW2
SW3
SW4
LM0
LM1
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
RST
CD8V
GND
H