Commodore 1701 - CHROMA OUTPUT CIRCUIT

CHROMA OUTPUT CIRCUIT
~
RI23,RI'2.2.RI24 ___ .....
X\ot
~~ .
bl",e
©~ShOTt
yo.ster
®~short
no blu.e
ope.n
Yo..steY"
RI2S',RI26.RI2.'1
u,r.a.t YeSistanc.e of base
'RlZS oren : ho b",\e raster
·~1'2.6, open.; no ~~e!l. r~ster
-RlzCf open! \10 ye.d rtlstl!:r
"R12.1. RIO'L Rill
D-r,ve adju5tm€:.nt
·RI2.1 opm: no biue Y'Ct5ter
'Rlo9 0pen;ho red raster
' RII! open: i'\o ~l"een raster
x 10Z
XI03
Rill, R1I3 . RI14 ----.
RIIS.Rllb,RII'1---.
L103.Llo2., LI04
nd
~reen
Olltput Tr colle.ctor ioad resister
CRT cathod 'reSistor and Tesist.:>'" for
j'l'riecti~ DI1tputTr frD'" CRT sparki"
'RII S' open: no blu.e. 'r11"5te.r
FYe'!uency chayt\c.terlst;c.
To-ster
no red
Yo..ster
'raster
110~ree.n.
'(llSter
RI21
150
• R,ll L open: SCTeen of bll.le
· RII:3 open :SCfecn of red
• R 114 opel1 :sc.reen of ~\'~ert
. RII b open: no red Ytlste.l"
.RII'7 open: no ~reen yaster
iCRT SOCKETi
I
I
J
I
VOl
: 370ES822(£ )
or
I 370FV822(E)
RI02 RII6 I ,
_5KB 3.3K RII2
~ Rlf7 112S 12K 2W ..... --+-+0....,.---.
3.3KI/2S I
158V {160Vl ;~ ~.~'R2
XI02 RI13 19~1 fr~
RED OUi'2K 2W ; r"l ! ~ ..." I (;r:- I ~lI.
RI031K i ~ LJ "'1.-._-
Rloa " R CUT OFf) (H) ~ "=
~- __ .JW\,--+--J 180 RI14 J-'I f:rQ~ I, l ~l~~
12K 2W L-.J -AC150
LJ,JVv- __ --I-~-,..,........:....--X-1 0 .... 3--" I (H)
RI05 GREEN OUT 7
L'0'
IK 180
r- ...... ""'N~~IG CUT OFFI ~
RtlO
180 RI06 n+ GE-3000A
;;:;::;:::::::::;"t~"'fv..~'-.....J 5 K B z: C 10 I T
I'" DRIVE! l~~I:'a _'. ~ !0I250;._R.,1~~~ET
I
RWT. Rlo8, Rlf 0
Cl
0
3.CI
D
4,C{o$'
R(OLRI03 , RIDS'
Rlo2,Rto4, Rlob
H B s",ooth,n~
co t'rl!.cti on.
t:",m~ter 'I"e sisto. hel!.
1: ",,,,ite O(esistol'\c.e
.oreh :sct\!en IS bY~ht
a.nd dr'll~s ta: I ftl
Yi~ht.
Ltol ------------~
K1h fre~ll~ncr ·filter
·open: screen IS bri~kt:
o,l'\d dya~5 t",i j to
y;~ht ,
F9
uenc
T ChClYnderiS1ic. cor~tjol1.
'Rlo'1 open; ho b (<.Ie y(\ ster
'RI~ open: no -red rQster
'~1I0 open : no 'jr-eel'\ raS ter
·C10..3 short :screen cf bi",e $O.turate
· clo4 sJ..ort :screen of red Slltl4yat~
'C IDS' s~rt :screen of ~reen SAtu.rate
Cut off a.djustrnent
·RIO I open O} weo..l-en
° Rlo2. open . i>lu ~ r~ster
• i<. 103 ~1. W'ea.ket\
'RI04open r yec{ ra.ster
'RloS opo!l\l wea.ken
·R.lo6 opo::tt f; ~re.et1 raster
CIRCUIT NOTES
Although specifically written on the
1701 monitor. most circuit theories
apply to the
1702 also. Refer to the
1702 schematic for differences in com-
ponent values
and identification.
12