Panasonic PV-DF204 Service Manual page 170

DVD I BLOCK DIAGRAM
DVD MECHANISM UNIT DVD SUB C.B.A.
SW+3.3V
SW8952
CLOSE
SW8953
OPEN
A
TP8954
CN9852
LOADING 2
TP8955
MOTOR
CN9852
1
P8901
V-REF
21
Q8906 TP8903
P8901
HFM
4
TP8906
Q8905
TP8816
P8901
FOCUS 26
TP8817
ACTUATOR
P8901
25
TP8818
P8901
TRACKING
24
TP8819
ACTUATOR
P8901
23
TP8802
D
P8801
TRAVERSE
2
TP8801
C
MOTOR
P8801
1
P8801
5
P8801
6
P8801
SPINDLE
7
MOTOR
P8801
8
P8801
9
P8801
10
10
TP8805
P8801
11
TP8806
P8801
12
TP8807
P8801
13
DVD MAIN C.B.A.
CN8951 P8802
4 4
CN8951 P8802
5 5
IC8801 (SERVO DRIVER)
CN8951 P8802
46
3 3 LOADING LEVEL
MOTOR DRIVE SHIFT
CN8951 P8802
45
2 2
TP8923
SW+5V
TP8925
31
FOCUS
37
ACTUATOR
DRIVE
36
33
35 TRACKING
ACTUATOR
DRIVE
34
47
TRAVERSE LEVEL
MOTOR DRIVE SHIFT
48
4
5
HALL AMP
6
/REVERSE
7 PROTECT
8
9
10
DUTY
MATRIX
11
CONTROL
18
IC8001 (DVD SIGNAL PROCESSOR/DVD MICROCONTROLLER)
TRAY CLOSE DETECT(L)
66
TRAY OPEN DETECT(L)
67
127 V-REF(H)
77 HFMON
TP8809
B
LOADING MOTOR CONTROL
21 78
22
23
TP8810
FOCUS MOTOR CONTROL
24 148
29
28
TP8811
TRACKING MOTOR CONTROL
26 147
TP8815
TRAVERSE MOTOR CONTROL
53 75
52
E
TP8814
CURRENT MOTOR
19
DETECTOR VM+6V
TP8808
SPINDLE MOTOR CONTROL
20 76
3,19,25,50
VCC +6V
VCC 54 +5V
TP8009
P8401
DVD READY(L) DVD READY(L)
71
5
TP8010
P8401
DVD RESET(L) DVD RESET(L)
73
7
TP8005
P8401
HOST READY(L) 82 HOST READY(L)
1
TP8008
P8401
DVD SERIAL DATA 0 70 DVD SERIAL DATA 0
4
TP8007
P8401
DVD SERIAL DATA 1 DVD SERIAL DATA 1
69
3
TP8006
P8401
DVD SERIAL CLOCK DVD SERIAL CLOCK
68
2
TP8011 TP8523 TP8813
1 V
P8402
M VM+6V
M VM+6V
4
P8402
ACT VM+5V
ACT VM+5V
3
P8402
SW+5V SW+5V
10
P8402
SW+3.3V SW+3.3V
8,9 1 V
1 V
B
1 V
1 V
C
2 V
D
2 V
E
IC8004 (EEPROM)
2 2
I C SERIAL CLOCK 59 6 I C SERIAL CLOCK
I 2 C SERIAL DATA I 2 C SERIAL DATA
60 5 1 V
VCC
+D3.3V 8
DVD I BLOCK DIAGRAM
PV-DF204/PV-DF2004/PV-DF2004-K/PV-DF274/PV-DF2704/PV-DF2704-K
FROM/TO
SYSTEM CONTROL
BLOCK DIAGRAM
A
V1 2.3 Vp-p
10 s
(During Loading)
V1 2.3 Vp-p
10 s
10 us
(During Unloading)
V1 1.0 Vp-p
10 s
(During Loading)
V1 1.0 Vp-p
10 s
(During Unloading)
V1 1.8 Vp-p
5 ms
V1 2.0 Vp-p
5 ms
V1 0.5 Vp-p
5 ms