Sony DVW-A500P Maintenance Manual page 117

CAPSTAN FG VCC
304-3 1-4 CAPSTAN
MOTOR BLOCK
CAPSTAN DRIVE
303-6 1-6
CAPSTAN CURRENT
302-48 SS(2/3),124-35A
M007
SP37AA
M
FG
CAPSTAN MOTOR DIR
302-59 SS(2/3),124-39B
305-9 1-7
1-8
CAPSTAN MOTOR VCC
304-15
LOADING MOTOR(-)
303-4 920-3 M003
M
THREADING
LOADING MOTOR(+)
303-3 920-1 MOTOR
CCM-15(T)
POSITION MOTOR(-)
M002
304-7 920-3
M
REEL SHIFT
POSITION MOTOR(+)
MOTOR
304-8 920-1
CCM-15(R)
CC UP/DOWN MOTOR(+)
304-9 + CASSETTE
M
UP/DOWN
CC UP/DOWN MOTOR(-)
304-10 - MOTOR
SE-228(S)
926-4
RM1
S-REEL MOTOR(-) S-REEL FG
321-8
DME
926-1
RM-82(S)
SE-228(T) 926-4
RM1
T-REEL FG
DME
926-1
M005 RM-82/141(T)
S-REEL MOTOR
- RM141;Betacam
923-6
M PB SYSTEM
S-REEL MOTOR(+) +
321-9 923-5
RM-82(S)
TR-78(2/2)
T-REEL MOTOR(+)
322-10
S-TENSION 1-1
SENSOR AMP 1-6
TR-79(2/2)
T-TENSION
SENSOR
M006
T-REEL MOTOR
+
923-4
M
T-REEL MOTOR(-) -
322-7 923-7
RM-82/141(T)
RM141;Betacam
PB SYSTEM
DVW-A500/500
DVW-A500P/500P
DVW-A510/510
DVW-A510P/510P
DVW-CA510/CA510P
Lot(a) ONLY
IC26,IC28,IC55
CAPSTAN FG(A) 26-3 28-1 CAPSTAN FG(A)NORM
1-2 304-4 SHAPER
1-3
IC27,IC29
27-7 CAPSTAN FG(A)ANA
27-5
SHAPER 29-1
27-3
CAPSTAN FG(A) DUTY
Lot(a) ONLY
IC26,IC28,IC55
CAPSTAN FG(B) 26-5 28-7 CAPSTAN FG(B)NORM
304-5 SHAPER
IC27,IC29
27-8 CAPSTAN FG(B)ANA
27-10
SHAPER 29-7
27-12
CAPSTAN FG(B) DUTY
IC35,IC36
35-7 S REEL FG 1 PROBE
S REEL FG 1 35-5 FG
923-13 321-1 36-7 SHAPED S REEL FG(A)
SHAPER
36-6
S REEL FG(A) DUTY
IC36
S REEL FG 2 3 FG 1 SHAPED S REEL FG(B)
923-10 321-4
SHAPER
2
S REEL FG(B) DUTY
IC37,IC38
37-7 T REEL FG 1 PROBE
T REEL FG 1 37-5 FG
923-13 322-1 38-7 SHAPED T REEL FG(A)
SHAPER
38-6
T REEL FG(A) DUTY
IC38
T REEL FG 2 3 FG 1 SHAPED T REEL FG(B)
923-10 322-4
SHAPER
2
T REEL FG(B) DUTY
IC33,IC34
THREADING FG SENSOR 34-2 SHAPED THREADING FG
SHAPER
PTC-54,904-2 305-31
34-1
33-5
LOADING FG DUTY
S TEN ADJ
IC41
10
1
15 IC40
S TENSION SENSOR(+) 2 3
305-32 TENSION 1
S TENSION SENSOR(-) 2
HN-181,215-4 305-33 DET
5
S TENSION SENSOR GND S TENSION OFFSET
305-36
IC32
T TENSION SENSOR(+) 3
1-7 305-34 TENSION 1
T TENSION SENSOR(-) 2
1-6 305-35 DET
5
T TENSION OFFSET
TENSION SENSOR CUR
DR-200 DR-200
Q400
CTL GAIN
SS(2/3),124-30B 302-37
Q405
H:CTL PLAY
IC44
2
1
3
5
H002
CTL HEAD
CTL HEAD(X)
302-15 SS(2/3),124-19A 304-17
CTL HEAD(Y)
304-18
Lot(b)(c)ONLY
Lot(a);13V Through
Q406
302-52 SS(2/3),124-37A
CAPSTAN FG(A)
302-17 SS(2/3),124-20A
Q401
H:CTL REC
SS(2/3),124-17A 302-11
302-16 SS(2/3),124-19B
IC39
REC CTL 14 15
SS(2/3),124-18B 302-14
302-53 SS(2/3),124-37B
CAPSTAN FG(B)
302-18 SS(2/3),124-20B
Q403
L:DRUM REC EN
SS(1/3),124-23B 302-24
TOP SENSOR
TAPE TOP SENSOR(X)
001-1 304-20
305-28 HN-181,215-9
302-19 SS(2/3),124-21A
END SENSOR
TAPE END SENSOR(X)
001-1 304-22
302-20 SS(2/3),124-21B
305-29 HN-181,215-8
302-21 SS(2/3),124-22A
302-22 SS(2/3),124-22B
302-13 SS(2/3),124-18A
S-TENSION
H;CTL PALY
302-54 SS(2/3),124-38A
L;THREAD END
L;UNTHREAD END
L;METAL/H;OXIDE
T-TENSION
302-55 SS(2/3),124-38B
302-49 SS(2/3),124-35B
3-65 (a) 3-65 3-65 3-65 (a)
IC100
5
4
3 HPF
9 IC50
10
2
15
1
Lot(a);13V
Lot(b)(c);15V
IC50
IC44 IC48
9
IC48 11 5
15 3 12 4 5 7
1 14 3 BUFF
DC
AMP
2 13
FILTER
10
10 11 IC47 12 13
IC44
9
4 8 NOISE
FILTER 15 12
SHAPE
7
6
CTL REC D.C.
5
AMP BIAS
13V
2 1
Q407
Q402
IC49
5
6
4
Q404
IC45
8 6
OSC DET
14 3
FILTER
IC46
8 6
OSC DET
14 3
FILTER
Lot(c) ONLY
DEGAUSSING HEAD DRIVE CIRCUIT
TP911
5V IC913,936
IC934 C914,R914 IC913,936 IC936
RV911 DECAY VOLTAGE POLARITY
BUFF
ERASE LEVEL
GENERATOR SWITCHER
L;CHARGE
Q951 IC932,937 IC931,933,935,938,950
PHASE DEMAGNETIZATION
DRUM PG
SHIFTER CONTROL LOGIC
DRUM FG
Q932
D/A DET
This block diagram corresponds to the production lots
of Lot No.302 and higher.
Circuit sections that any midway change occured are
shown using the abbreviation mentioned below.
abbrev. Lot No. Board No.
Lot(a) 302-306 1-648-559-11
Lot(b) 307-402 1-648-559-12
Lot(c) 403-911 1-648-559-13,14
CTL SIG
302-9 SS(2/3),124-16A
IC49
IC50
11 13
14 SWITCHED CTL
12 302-10 SS(2/3),124-16B
11
REC GUARD
304-2 BRUSH ASS'Y,B
TAPE BEGIN
302-7 SS(2/3),124-15A
TAPE END
302-8 SS(2/3),124-15B
Lot No;405-
TP900
DEGAUSSING
HEAD
Q911-916
ERASE(X)
DRIVER 304-24
ERASE(Y)
304-36
1
ERASE(X)
DUS-772
901-3 NC
ERASE(Y)
901-2 NC
Betacam PB
SYSTEM ONLY
Servo Drive
DR-200
DVW-A500/500
DVW-A500P/500P
DVW-A510/510
DVW-A510P/510P
DVW-CA510/CA510P