Sharp XL-520H Service Manual page 17

SW701
CD EJECT
FEL2
4
FOCUS
OFFSET
3 FEL1
VR803
2 FHLD
FEI
1
0 FEO
9 FEN
8 FEP
DFIN
7
SBAD
6
CD+5V
RFRP
5
2VRO
4
VRO
3
RFI
2
RFO
1
801
3 2 1 TP801
TEST POINT
(S+6.2V)
5V
Q861
REGULATOR
40 37 36 34 33 32 30 28 27 26 25
2VREF
41
FOCUS TIMING
42 SEL
GENERATOR
TRACKING
43 FCSI
SERVO
FKIC
44
CONTROL
BUCK
47 FEI
SERVO BUS3
48 TESH
STATUS
BUS2
49 TEOF
BUS1
50 SBAD
BUS0
51 RFRP
GNDD
52 VREF
RFI VDDD
53 16K RAM
54 GNDA
58 VDDA GNDA
CORRECT
59 PDCNT
AUDIO OUT
GNDA
65 67 75 77 78 79 80
IC802
3
J801
DIGITAL
2
OUT TO
X801
1
MD/DAT
Figure 17 BLOCK DIAGRAM (2/4)
PU IN
D-GND
RESET
RST
21
BUCK
19
CCE
CCE
18
BUS3
17
BUS2
16
BUS1
15
BUS0
14
13
G-GND
12
7
CD L-CH
LO 6
CD R-CH
RO 2
1
A-GND
– 17 –
XL-520H,520E/CP-520,520E
M 12V
1
D GND
2
VCL
3
VCE
4
VDI
5
CL
6
DO
7
CE
8
DI
9
10
M GND
20
S+6.2V
19
A GND
18
R-CH
17
L-CH
16
P MUTE
15
A 12V
14
P CONT
13
CD+B
12
R-MUTE
11
FM ST
10
SD
9
REC
8
B-CAN
7
BIAS
6
5
4
3
2
1
µ-CON5V
Q906
SWTCHING
TAPE MOTOR
SWTCHING
DRIVER
Q905 Q904
M-12V
SWTCHING
Q903
Q902 Q901
SOLENOID
DRIVER
7 6 5 4 3 2 1 BI901
7 6 5 4 3 2 1
CNS901
7 6 5 4 3 2 1 CNP901
SW902
FW901
SW901
PH901
RECORD
PREVENTION
M901
TAPE
SWTCHING
CAM
+ –
M
SOL901
SOLENOID