Panasonic PalmSight PV-L750 Service Manual page 198

8
TO MAIN I
FORCED ACCELERATION 16
CAP FG 28
70
CTL PULSE(-)
CTL PULSE(+) 69
7 TO MAIN VIII
AUDIO HEAD 171
AUDIO HEAD 172
AUDIO HEAD 173
AUDIO ERASE HEAD 174
GND 175
176
GND
CONTROL ERASE HEAD 177
6
TO AUDIO CONTROL
HEAD UNIT
FP1
/CAPSTAN UNIT
1
GND
CONTROL HEAD(-) 2
CONTROL HEAD(+) 3
4
CONTROL ERASE HEAD
5
GND
GND 6
AUDIO ERASE HEAD 7
5 AUDIO HEAD 8
AUDIO HEAD 9
TP6220
AUDIO HEAD 10
GND 11
GND 12
VMR 13 C2001
0.1
CAP FG(+) 14
R2001
15
C2003
1500
0.1
VH- 16
H1+ 17
H1-
18
4
H2+ 19
H2- 20
H3+ 21
H3- 22
VH+ 23
MAIN COIL 2 24
MAIN COIL 3 25
MAIN COIL 1 26
Z
LOADING MOTOR 0 27
R2002
LOADING MOTOR 1 28
C2007
3
22/6.3V
R2003
R2004
TO MAIN I
3300 100
260
LOADING MOTOR 1
LOADING MOTOR 0
259
2
TO MAIN IX
CAP SW 75
TRIANGLE WAVE 76
CAP VM 77
REG +4.5V 78
1
UNLESS OTHERWISE SPECIFIED;
WATTAGE OF RESISTORS IS 1/16W.
A A A B
14 13 12 11 10 9 8
DRIVE DRIVE DRIVE
IC2002
UN224-TX
CAP MOTOR
DRIVE DRIVE DRIVE DRIVE
1 2 3 4 5 6 7
C2002
0.1
C2005
0.01
Z
C2006
0.01
Z
C2004
0.01
Z
R2008 0.33
C2011 C2012
0.33 0.047
C2040
10/16V
C2008
0.033
C D E
REC AUDIO SIGNAL
R2031
100
R2032
10K
14 13
DRIVE
IC2003
UN224-TX
CYL MOTOR
DRIVE
DRIVE
1 2
R2013
3300
C2010
0.068
IC2001
AN3897FH
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
R2011
CYL/CAP MOTOR
22K DRIVE CTL DRIVE CTL
DRIVE CONTROL
CAP
33 16
VM
34 15
CYL VM
35 14
TORQUE
36 13
LOGIC SATURATION
37 12
DETECT
TORQUE
38 11
LOGIC
39 SATURATION 10
DETECT
40 9
41 8
DIRECTION
42 7
43 DRIVE SWITCH 6
44 5
TORQUE
45 TORQUE 4
COMMAND
46 DIRECTION 3
TORQUE
C2013
47 CONTROL 2
COMMAND
0.047
48 1
C2022
0.047
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
R2022
220
R2037
R2012 R2010
180K 1K
Z
C2016
R2016 R2021
330P
680K 10K
C2015
R2014 R2015
1500P
680K 6800
Z
C2039
R2036 Z
G
F
NOTE:
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
PB AUDIO SIGNAL
TP6212
Z
C2043
R2046
C2031 C2030 C2042 C2041
0.1 0.1
R2045 R2044
C2032
0.1
12 11 10 9 8
R2025
DRIVE DRIVE R2029
100
390
R2028
390
DRIVE DRIVE
R2030 R2026
470 82
3 4 5 6 7
C2027
0.1
Z
C2028
0.1
Z
C2025
0.01
Z
C2029
0.1
R2023
C2024
0.33
1
Z
C2021
0.047
C2023
0.1
C2017
1
H I J
COMPARISON CHART
OF MODELS & MARKS
MODEL MARK
PV-L750 A
----- B
PV-L780 C
PV-L850 D
Not Used Z
TO MAIN I
2 CAP DIRECTION CTL
18 CAP SPEED ERROR
9 CAP TORQUE LIMIT
71 REG +4.5V
29 V-REF
Z
TO MAIN VII
153
CYL FG(+)
154 CYL FG(-)
155
CYL PG
156
MAIN COIL 2
157
VH-
158
VH+
159
VH+
160
VH+
161
VH+
162 H1-
163
H1+
164
H2-
165 H2+
166
MAIN COIL 3
167
H3-
168
VH-
169
H3+
170
MAIN COIL 1
R2027
470
TO MAIN IX
96 CYL VM
TO MAIN I
15 CYLINDER ON(L)
25 CYL SPEED ERROR
27 CYL PG
26 CYL FG
LSJB8026
K L