Sony RMT-V259M, Service Manual

Page: 67 / 117

SL
V
-SE850/SF900/SF950/SF990
4-25
4-26
BIAS
RP-238
2P
CN302
1
FE_HEAD
2
AU_GND
JL270 JL274
JS331
0
JL275 JL276
IC301
BA7755AF-E2
1 2 3 4
5 6 7 8
18k R317
L332
100uH
0.01u
C332
50V
B
27k
R332
1500p
B
C334
2SC4040-TL2-Q
Q331
100V
C335
0.047u
1.2mH
L331
UN2115-QRS(TX)
Q332
SB-N5510
T331
1
2
3
4
6
7
8
JS332
XX
10k
R335
B
0.01u
C323
B
0.01u
C322
JL301 JL302
T321
1 2 3
4 5 6
7 8
JL303
JL304
1
R323
*
R322
47 R321
16V 47u
C321
0.047
C324
100V
2SD879-AA
Q321
16V C331
100u
180
R324
0.1u
F
C370
12k
R370
PS331
0.125A
CN305
8P
1
NA_REC
2
A_HEAD_PB
3
B
IAS_VCC
4
GND
5
AU_GND
6
FULL_ERS
7
NA_5V
8
SW12V
3P
CN303
1
CTL(Y)
2
AU_GND
3
CTL(X)
XX
C333
12 R333 1/4W
7P
CN304
1
A_ERASE_HEAD
2
AU_GND
3
A_HEAD_REC
4
A_HEAD_PB
5
AU_GND
6
CTL(Y)
7
CTL(X)
1
A
JS322
XX
L322 100uH
1 2 1 2 3 4 5 6 7
VCC
NON FLAMMABLE RESISTOR FULL ERASE OSC
FULL ERASE OSC
BIAS/ERASE
OSC
BIAS/ERASE OSC
SE850/SF990 MODELS
Q331,332 FULL ERASE OSC
SF900/SF950 MODELS
ACE HEAD FULL ERASE HEAD
TO MA-388 BOARD(4/8) CN167 TO MA-388 BOARD(2/8) CN201
PB
XX MARK:NO MOUNT
SIGNAL P
A
T
H
IC301
B+
16
SIGNAL
BIAS
REC
HEAD SW
AUDIO
-REF
.NO.:1000 SERIES-
(SEE P
AGE 4-11)
RP-238 BOARD
(SEE P
AGE 4-7)
B+
B+
B
4
E
10
9
D
11
C
7
3
26
5
F
8
G
5.0
R2.7/ P5.0
R2.3/ P5.0
5.1
0
R3.4/
P0.2
2.4
R11.4/ P0.3 R0.4/ P0
R0.7/ P0.3
R11.8/ P0.3
R11.9/ P12.0
R0.2/ P12.0
ERASE AUDIO CTL
NO MARK:REC/PB MODE R :REC MODE P :PB MODE
AUDIO NORMAL
SIGNAL P
A
T
H
REC/PB
PB
Ser
vo ref.signal
REC
C324 R322 0.018u 5.6k SE850/SF990 0.047u 3.9k SF900/SF950
1
2
Note :
The components identified b
y
mar
k
0
or dotted
line with mar
k
0
are cr
itical f
or saf
ety
.
Replace only with par
t number specified.