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VP-1 BOARD VIDEO PRE-AMP CIRCUIT DIAGRAM
VP-1
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pasos
01822
eget
PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
u
cle
281538
BUFFER
THIS NOTE
IS COMMON
FOR
PRINTED
WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
"sais sare
(In addition to this, the necessary note Is printed in
i 022 Lee
each block.)
RI822
2.2K
@igo2
2862839
[2]
2.3
Q1B02
OE, F>
28C283
01806
2SC2839<E, F>
1.6
IC181
orrd
REA
REC/PRE
AMP
e For printed wiring boards.
°
O— : indicated a lead wire mounted on the component side.
I
ae
rigor
cone 022 C1602
9
For schematic diagrams.
'
Caution when replacing chip parts.
.
New parts must be attached after removal of chip.
ts
Z
Be careful not to heat the minuts side of tantalum capacitor,
cra0s ot
mao 0
5
because it is damaged by the heat.
— TIDES HEAD.
Loon
i2i7y
&
=
3K
[RF SW]
[ee
All resistors are in ohms, 1/4W unless otherwise noted.
u
cwias
=
I
I
Chip resistor are 1/10W unless otherwise noted.
'
Ri809
RiBIO
1OOP
10K
15K
All capacitors are in uF unless otherwise noted. pF: yw yu F.
50V
or less are
not indicated
except
for electrolytics
and
Gao
4
R1808°
2.4K
All variable and adjustable resistors have characteristic curve
re
B, unless otherwise noted.
nase
mya
Tea),
'
N18)
1
=
.
cia4
41810
+E} : nonflammable resistor.
[8
a ap
oem
8. 8/16(08)
ANS385NK
A
: panel designation
10
—,
nese
3:3,_ezsion
SC536<F, G>
,
,
tP-1 Boao [Rec clea t}—|
$s
He ciass
we
(@ynr
:
BUFFER
: adjustment for repeair
cut
{wot | 4}
or 801
100/16
An
eisiz
Pit
aigus
Oa gue
Rradas a139
+
ag}
i¢]
.
;
(See page 46) eee
wrzg.t¢,czse.ty | |
a
0. 001
F501
prec
i
[___ate ¥]
t e
&
1834
(REC._1]
: B+Line
R1806
Lovers
eB rtins
f:
ot
'sou | 'n200
om
01
ea
bPaaie oe
é
'
E
(FP
01817
=
R1837
: IN/OUT direction of (+, -) B LINE.
tr
Tale
atl
aX) idee.
843 cays
=
als
Circled numbers refer to waveforms.
;
390P
ssop
| 2.0
2208
2,412.0)
0.1
l
Voltages are dc between ground and measurement points.
g) 2,412.0)
=
=
1,7gf
QIBIt
(L4Y"|
25A608<F, G>
R151
1K
2BiGde
Switch
Readings are taken with a color-bar signal input.
Readings are taken with a digital multimeter (DC10MQ ).
Ri84d
Py
ee
Voltages are taken with a VOM (Input impedance 10MQ ).
Voltage
variations
may
be noted
due to normal
production
e = Signal path
ADO
>|
>| >!
SS
sa
tolerances.
Note:
Note:
The components identified
Les composants
identifiés par
by mark A\ or dotted tine | une
marque A sont
critiques
with
mark A\ are
critical
pour la sécurité.
for safty.
Ne les remplacer que par une
Replace only with partnum- | piéce portant le numéro spéci-fié.
ber specified.
VOLTAGE ; PLAY(REC) MODE
-
o2
rr
VP-1 BOARD
When
indicating parts by refer-
ence number, please include the
CN181
A-8
Q1803
B-4
lerey- ce Met lal - 9
CN182
A-1
Q1804
B-3
CN183
B-7
Q1806
B-3
Q1809
A-4
D1801
A-7
Q1810
A-4
D1802
B-2
Q1811
B-8
Q1812
B-8
1C181
A-6
Q1821
B-2
Q1822
B-1
Q1802
B-4
Q1823
A-8
Q1824
B-2
— 89 —
| PRE AMP
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