Au-250 - Sony BVP-900P Maintenance Manual

C
+v
S400
CN1
D
VR, 46-B2 54 INCOM 1 MIC IN (X)
VR, 46-A2 53 INCOM 1 MIC IN (Y)
S1
(1/2)
CN1
VR, 46-B1 56 INCOM 1 MIC ON IN
C
+v
S500
CN1
D
VR, 46-B4 48 INCOM 2 MIC IN (X)
VR, 46-A4 47 INCOM 2 MIC IN (Y)
CN1
VR, 46-B3 50 INCOM 2 MIC ON IN
CN1
CN1607, 43-B3 66 MIC 1 IN (X)
CN1607, 43-A3 65 MIC 1 IN (Y)
D801, D802
RECT
5V
PH1
CN1
CN1607, 43-B1 69 MIC 1 12V ON IN
CN1
MB, 15-A10 72 MIC (X) OUT
MB, 15-B10 71 MIC (Y) OUT
T800
Q804, 805
D803, D804
D-D CONV.
TRANS
DRIVER
RECT
CN1 DC-DC CONV
CN1607, 43-B6 60 MIC 2 IN (X)
CN1607, 43-A6 59 MIC 2 IN (Y)
PH2
CN1
CN1607, 43-B4 63 MIC 2 12V ON IN
CN1
AT120, 1-52 4 SER 2 DATA IN
AT120, 1-51 5 SER 2 LD IN
AT120, 1-57 3 SER CK IN
AT120, 1-82 86 AU DIAG OUT
Q800
+
BUFF
IC803
CN1
2 4
CN1607, 43-B2 68 MIC/L LINE INV
CN1
AT120, 1-27 87 CHU DATA IN
CN1
CN1607, 43-A1 70 MIC 1 48V ON IN
CN1
CN1607, 43-A4 64 MIC 2 48V ON IN
CN1
MB, 15-A12 76 VTR MONITOR IN

AU-250

AU-250
Block Diagram
Q400, Q401
IC400 ( 1/2 )
IC400 (2/2)
IC401
+ 7
AMP AMP
5
S401
+ —
0
Q500, Q501
IC500 ( 1/2 )
IC501
IC500
+ 7
AMP AMP
5
S501
+ —
0
Q600, Q601 Q602, Q603
IC600
POWER MIC/LINE 1
Q11 BUFF
SWITCH LEVEL SELECT
9
Q700, Q701
POWER
SWITCH
Q12
IC800
42
SERIAL / 8
43
PARALLEL
44
CONV.
33
Q9
Q801
DRIVER
CP800
Q10
1 MIC POWER 3
DC/DC CONV.
3-12
Block Diagram
IC402 (1/2) IC402 (2/2) Q404, Q405
Q402, Q403
1 + INCOM 1
AMP LIMITER MODULATOR
AMP
RV400
LV400
INCOM 1 INCOM1
DEV
FREQ
SET
IC502(1/2) Q502, Q503 IC502 (2/2) Q506, Q504
INCOM 2
1 +
AMP LIMITER MODULATOR
AMP
RV500
LV500
INCOM 2 INCOM2
DEV FREQ
SET
IC601 (2/2)
IC601 (1/2)
Q610, Q611 Q612, Q613
Q604, Q605
AMP
LIMITER MODULATOR
RV600
Q606-Q609 LV600
MIC1
Q611,Q614 MIC1
Q615 DEV FREQ
MIC GAIN
SET
IC353
CONT
1 7
+
S351
MIC MONITOR
ON/OFF
IC701
Q712, Q713
Q710, Q711
Q704, Q705
MODULATOR
AMP LIMITER
Q706-Q709 RV700
LV700
Q711,Q714 MIC2
MIC2
DEV
Q715 FREQ
MIC GAIN
SET
CONT
4
IC801
4
IC802
GAIN
CONT
Q850-Q852
+
MODULATOR
X850
IC850, IC851
LV850
FREQ
SET
OSC
32.768kHz
3-12
TP400
CF400 IC21
FL20 IC22
BPF
MIX AMP LPF AMP
( 7.1MHz )
TP20
AUDIO RF IN/OUT
W20
AU0 RF
CF500 TP500
BPF
( 7.4MHz )
Q28,Q29 IC20
3 4
BUFF AMP
CF600 TP600
BPF
( 6.2MHz )
CF700 TP700
BPF
( 6.7MHz )
TP850
CF850
BPF
(5.6MHz)
CN1
82 MPX FILTER
IC350 (3/4)
6 7
+
AMP
BVP-900
BVP-900P