SLV-M10HF
4-5
MA-335 (REC/PB AMP) SCHEMATIC DIAGRAM
— Ref. No.: MA-335 Board; 1,000 Series —
4-6
4-7
MA-335
REC/PB AMP, VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER
FR-139
(MODE CONTROL)
DM-81
(OPERATION SWITCHES)
POWER BLOCK SR821
AJ-2
(LINE-2 IN)
AN-17
FRONT
SMARTFILE
SENSOR
AN-16
INNER SMARTFILE
SENSOR/WRITER
MA-335
BOARD
1
IC260
4
REC
2
IC260
#º
REC
CN261
1
REC
3
IC260
@•
REC
20mV/Div
0.1
µ
sec/div
0.5V/Div
0.1
µ
sec/div
1V/Div
0.1
µ
sec/div
4
IC260
@™
PB
200mV/Div
0.1
µ
sec/div
5
IC260
!•
REC/PB
2.3Vp-p
H
6
IC260
!¶
REC/PB
CN261
3
REC/PB
5Vp-p
30Hz
MA-335 BOARD
CJ570
A-3
CN101
C-7
CN102
E-2
CN103
I-4
CN162
J-12
CN163
I-12
CN165
G-11
CN260
B-9
CN261
B-7
CN301
B-4
CN302
B-5
CN341
B-10
CN423
C-12
CN603
H-1
CNJ980
A-2
CNJ981
A-1
D103
F-6
D107
G-8
D109
F-4
D161
J-8
D370
C-10
D379
A-11
D502
C-1
D503
C-2
D504
C-2
D560
B-3
D561
A-10
D611
J-3
D612
J-3
D614
J-3
D702
F-12
D801
D-9
D802
D-9
D980
A-2
D981
A-2
D982
B-1
D983
A-1
D984
A-1
IC100
G-6
IC101
I-3
IC140
H-11
IC141
A-5
IC161
I-9
IC201
D-5
IC202
E-5
IC260
B-8
IC301
B-5
IC340
B-10
IC360
B-11
IC500
C-1
IC501
D-1
IC601
E-12
IC733
H-13
IC871
I-6
IC980
B-1
PH101
H-8
PH102
H-4
Q101
F-1
Q102
F-10
Q103
F-5
Q140
H-10
Q201
C-3
Q204
C-3
Q205
C-3
Q208
D-4
Q209
E-4
Q210
E-5
Q211
D-6
Q214
D-6
Q260
B-7
Q301
C-5
Q331
C-6
Q379
A-11
Q386
A-11
Q387
A-11
Q502
B-2
Q503
B-2
Q505
D-1
Q560
B-3
Q603
J-2
Q604
J-3
Q605
J-4
Q606
J-2
Q731
H-13
Q801
B-8
Q802
E-10
Q803
E-9
Q804
E-9
Q805
E-9
Q806
E-8
Q807
E-8
Q808
E-8
Q809
D-8
Q810
E-8
Q851
C-8
Q852
C-8
Q853
D-8
Q854
D-8
Q855
D-8
Q856
D-8
Q857
D-8
Q871
I-5
Q872
I-5
Q873
I-5
Q874
I-5
Q875
H-5
• For printed wiring boards.
•
b
: Pattern from the side which enables seeing.
Caution :
Pattern face side:
Parts on the pattern face side
(Conductor Side)
seen from the pattern face are
indicated.
Pattern face side:
parts on the parts face side seen
(Component Side) from the parts face are indicated.
• For schematic diagrams.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
capacitor, because it is damaged by the heat.
• All resistor are in ohms, 1/4W unless otherwise noted.
Chip resistor are 1/10W unless otherwise noted.
k
Ω
: 1000
Ω
, M
Ω
, : 1000k
Ω
.
• All capacitors are in
µ
F unless otherwise noted. pF :
µ
µ
F. 50V or less are not indicated except for electrolytics
and tantalums.
•
C
: panel designation.
•
: internal component.
•
A
: B+ Line.
*
•
B
: B– Line.
*
•
J
: IN/OUT direction of (+,–) B LINE.
*
• Circled numbers refer to waveforms.
*
• Readings are taken with a color-bar signal input.
• Voltage are dc between ground and measurement
points.
*
• Readings are taken with a digital multimeter (DC10M
Ω
).
*
• Voltage variations may be noted due to normal production
tolerances.
*
When indicating parts by reference number, please
include the board name.
•
*
: indicated by the color red.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
REC/PB AMP
MA-335 (1/10)
DC PB
SP CH1
REC BIAS
SP CH1
PRE AMP IN
SP CH1
REC AMP
OUT SP
PRE AMP IN
SP CH2
REC BIAS
SP CH2
DC PB
SP CH2
GND
REC BIAS
EP CH2
DC PB
EP CH2
PRE AMP IN
EP CH2
REC AMP
OUT EP
PRE AMP IN
EP CH1
REC BIAS
EP CH1
DC PB
EP CH1
REC CURR.
DET
MAIN VCC
REC Y+C IN
PB FM AGC
OUT
ENV DET
OUT
AGC DET
PB FM AGC
IN
GND
PRE AMP OUT
REC AMP IDLE ADJ
CHROMA 30
OUT
SSB CLK
SSB DATA
SYNC IN
SW30 IN
VCC
A-HEAD PULSE
EP/SP
PB-FM OUT
RECMUTE
REC
GND
BUFF IN
BUFF OUT
REC FM IN
AGC FIL
T
REC MODE
REC OUT
GND
REC-CURR-ADJ
VCC
REC BIAS
REC OUT
CH1-IN
PSW2
FIL
T2
PB GND
CH2-IN
FIL
T1
NC
PSW1
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T E L
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5
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
