Panasonic DoubleFeature PV-D4734S, Service Manual

Page: 108 / 170

DVD I BLOCK DIAGRAM
PV-D4734S/PV-D4744/PV-D4744S/PV-D4754S/PV-D4734S-K/PV-D4744S-K/PV-D4754S-K
DVD I BLOCK DIAGRAM
(During Unloading)
1 V
V1
2.3 Vp-p
10 s
B
C
A
(During Loading)
1 V
V1
2.3 Vp-p
10 s
V1
1.8 Vp-p
2 V 5 ms
2 V
V1
2.0 Vp-p
5 ms
1 V
V1
0.5 Vp-p
5 ms
C
B
(During Loading)
1 V
V1 1.0 Vp-p
10 s
(During Unloading)
1 V
V1 1.0 Vp-p
10 s
IC8801 (SERVO DRIVER)
LOADING
MOTOR
FOCUS
ACTUATOR
TRACKING
ACTUATOR
TRAVERSE
MOTOR
SPINDLE
MOTOR
DVD MECHANISM UNIT DVD SUB C.B.A. DVD MAIN C.B.A.
P8801
2
P8801
1
P8801
5
P8801
6
P8901
26
P8901
25
P8901
24
P8901
23
P8802
4
P8802
5
P8802
3
P8802
2
CN8951
4
CN8951
5
CN8951
3
CN8951
2
CN9852
2
CN9852
1
P8801
7
P8801
8
P8801
9
P8801
10
P8801
11
P8801
12
46
45
37
31
36
35
34
47
48
4
5
6
7
8
9
10
11
66
67
P8801
13
18
LOADING
MOTOR DRIVE
FOCUS
ACTUATOR
DRIVE
TRACKING
ACTUATOR
DRIVE
TRAVERSE
MOTOR DRIVE
HALL AMP
/REVERSE
PROTECT
MATRIX
DUTY
CONTROL
CURRENT
DETECTOR MOTOR
VM+6V
LEVEL
SHIFT
DVD READY(L)
DVD RESET(L)
HOST READY(L)
DVD SERIAL DATA 0
DVD SERIAL DATA 1
DVD SERIAL CLOCK
P8401
5
P8401
7
P8401
1
P8401
4
P8401
3
P8401
2
73
82
70
69
68
71
FROM/TO
SYSTEM CONTROL
BLOCK DIAGRAM
DVD READY(L)
DVD RESET(L)
HOST READY(L)
DVD SERIAL DATA 0
DVD SERIAL DATA 1
DVD SERIAL CLOCK
TRAY CLOSE DETECT(L)
TRAY OPEN DETECT(L)
78
LOADING MOTOR CONTROL
21
FOCUS MOTOR CONTROL
24
23
22
TRACKING MOTOR CONTROL
26
75
TRAVERSE MOTOR CONTROL
53
76
SPINDLE MOTOR CONTROL
20
148
147
CLOSE
OPEN
SW8952
SW8953
6
5
8
59
IC8004 (EEPROM)
60
I 2 C SERIAL CLOCK
I
2
C SERIAL DATA
VCC
I 2 C SERIAL CLOCK
I
2
C SERIAL DATA
IC8001 (DVD SIGNAL PROCESSOR/DVD MICROCONTROLLER)
LEVEL
SHIFT
28
29
33
19
P8901
21
P8901
4
V-REF
HFM
127
77
V-REF(H)
HFMON
P8402
4
P8402
3
P8402
10
P8402
8,9
M VM+6V
ACT VM+5V
SW+5V
SW+3.3V
52
54
3,19,25,50
A
+D3.3V
TP8009
TP8005
TP8010
TP8006
TP8011 TP8523 TP8813
TP8007
TP8008
SW+5V
SW+3.3V
SW+5V
M VM+6V
ACT VM+5V
SW+3.3V
TP8809
TP8808
TP8814
+6V VCC
+5V VCC
TP8906
Q8906
Q8905
TP8923
TP8954
TP8903
TP8925
TP8802
TP8801
FROM
POWER SUPPLY
BLOCK DIAGRAM