3-9
BVW-55
3-9
AU-262
Block diagram
Block diagram
AU-262
LONGITUDINAL AUDIO REC/PB
AU-262
LOT NO. 812-
APR-42,31-85
68
CN11
CH1 LNG REC SIG
2
1
CN300
CH1 HEAD (Y)
CH1 HEAD (X)
LAU CH1 HEAD
CN11
79,80
APR-42,31-97 TO 98
2
APR-42,31-100
CN11
64
CH 1/2
BIAS ON
TC INSERT
NR ON
82
APR-42,31-83
APR-42,32-3
90
ATT ON
APR-42,32-4
92
SLOW EQ ON
APR-42,32-7
94
METAL
93
SV-206,301-4
CN11
LTC PB/REC
CH1 BIAS CLK(X)
CN11
SV-206,301-7
97
98
SV-206,301-5
CN11
CH1 BIAS CLK(Y)
T/C CURRENT
CN11
SV-206,301-2
95
LAU CH2 HEAD
CH2 HEAD (X)
CH2 HEAD (Y)
CN300
4
5
72
APR-42,31-89
CN11
CH2 LNG REC SIG
99
100
CN11
CH2 BIAS CLK(X)
CH2 BIAS CLK (Y)
SV-206,301-8
SV-206,301-6
2
APR-42,31-79 TO 80
54,56
CN11
58,60
APR-42,31-81 TO 82
2
APR-42,31-95 TO 96
77,78
75,76
2
2
CN11
APR-42,31-99
63
62
APR-42,31-73
CN11
73
74
APR-42,31-92
APR-42,31-93 TO 94
APR-42,31-91
AMP
PB/
REC
CONT
PB/REC
IC300
Q300,301
Q302
S300
CH1 HEAD
TUNE
BIAS TRAP
CH1 INSERT
LV300
RV300
CH1 HEAD
DUMP
PB EQ
AMP
METAL
SEL
METAL
RESP(M)
CH1 FREQ.
RV302
RV301
CH1 FREQ.
RESP(O)
IC301
METAL
EQ
MUTE
ATT
SLOW
EQ
AMP
PB
PHASE
PB MUTE
METAL
ATT ON
SLOW
EQ ON
PHASE
OXIDE PB
RV303
METAL/
OXIDE
SELECT
METAL/OXIDE
RV304
METAL PB
PHASE
Q308-311
Q304
Q305
IC100
Q306
Q307
IC301
IC302,304,403
MUTE
BUF
Q108
Q107
PB MUTE
Q114
IC103
DOLBY
RV100
AGC
CONT
AGC
AMP
LIMIT
MUTE
SIGNAL
LEVEL
DETECT
IC100,101
Q100
Q102-106
Q101
IC102
IC106
LIM/AGC
LIMIT/AGC
RV101
CH1 DOLBY
LEVEL(EE)
MANUAL
IC106
BUF
IC103
CH1 EE/PB
(FET)
DOLBY
C
IC205
(LINE OUT)
(REC)
IC208
BUF
CN11
42
AFM-16,21-41
CH1 LNG PB SIG
EE/
PB
CONT
EE/PB
Q117,109
EQ
REC
METAL
RV103
RV104
METAL
FREQ.
Q112
RESP.
RESP.
FREQ.
METAL
RV105
R108
OXIDE
FREQ.
RESP.
RESP.
FREQ.
OXIDE
RV107
RV106
OXIDE
REC
EQ
Q111
OXIDE
METAL/
REC
PHASE
IC109
IC110
Q113,115
REC
METAL
RV109
METAL/OXIDE
SELECT
OXIDE
METAL/
RV110
OXIDE
REC
IC111
PHASE
PHASE
Q190,191
Q119
MUTE
CH1 REC
MUTE
IC501
AMP
+
IC501
BUF
CROSS
TALK
LV501
RV502
RY500
RELAY
DRIVE
CH1 PB/REC
BUF
IC503
IC504,Q512
RV503
RV504
TALK
CROSS
RV505
LV500
+
IC706
IC701
OR
TC INSERT
RV700
RV704
AMP
GATE
RV702
CH1 BIAS ON
IC507
REG
RV500
RV542
METAL/
OXIDE
SELECT
METAL/OXIDE
IC505,Q502
5V
CP REG +12V
CN11
T500
BUF
IC700
CH1
CH2
SAME THING AS THE ABOVE BLOCK DIAGRAM
37,38
POWER
CONT
IC903,Q907-916
39,40
CN11
CP REG -12V
POWER ON MUTE
36
CN11
APR-42,31-37
35
CP-316,601-6
HP-88,8-7
POWER
SW
Q926
POWER
ON/OFF
DET
Q922,923
Q917,918
IC904
6V
Q926
SW
POWER
-12V
+12V
ON/OFF
DRIVE
Q902,905,906
IC902
5V
PWM
CONT
5V
IC9OO
+12V
-12V
IC9OO
5V
CONT
PWM
5V
Q903,904,927
DRIVE
ON/OFF
CH2 LNG PB SIG
AFM-16,21-45
46
CN11
BUF
IC800
IC803-805
BUF
POWER
CONTROL
Q952,953
IC981
IC951-953
CH 1/2 REC MUTE
CH 1/2 PB MUTE
CH 1/2 EE/PB
CH 1/2 REC/PB
METAL/OXIDE
LIM/AGC
MANUAL
CH1 REC/PB
POWER
SW
POWER
SW
5V-4
-5V-4
Q951
Q954
5V-2
-5V-2
REG
IC907,Q900
6V
5V-2
-5V-2
-6V
IC907,Q901
REG
5V-2
Q180
AGC/LIM REF
RV180
REF
VOLTAGE
-5V-2
5V-2
Q292
Q293
-5V-6
5V-6
SW
POWER
SW
POWER
POWER
CONT
Q294,295
Q194,195
CONT
POWER
METAL/OXIDE
POWER
SW
POWER
SW
5V-5
-5V-5
Q193
Q192
5V-2
-5V-2
IC702
METAL/OXIDE
CH1 BIAS ON
-5V
S801
IC180,181
CP POWER OFF MUTE
D903
IC503
CV500
IC502
BUF
IC207
TP301
TP301
TP302
TP100
RV102
CH1 EE/ PB LEVEL
TP500
Summary of Contents for BVW-55
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