Commodore 1702 Service Manual download pdf (Page 16)

•

1'10

piduye

T30i

---,

take~off

transf.

,----

c302

Br-~~

conQenser

.open:

colD\"

beccmcs

$rk

'short;

color

R!oi---.,

Dumpi~

~is~nce

"open

:c%Y

error

4Vp-p

C303

N:.c

smoomlnj

•

open

~clor

R3,-3

Emmire~

...

-tGn~1e

Cou~in3

Cl)ndens~r

.open:

coloy

"sheet:

picture.

c30S

--...,

K i

\l~

smocil\,'i

.:yw

"\:

ltO

~Ior

's~rt\

C304i:C305

180

-.45/50

R328

R302.R303

Co\Oy

c:orrec.tloh

(bleeder

feS'StllllC~)

color

'R3Dl

open:

faint

'R303

nDf!Tl:

color

·r

dink

R304,

R3DS,

R322

tl\'\t

c.orrectlon.

(bleeck.r

..-n\S~)

·R304

ore"':

Yec:\

ro.steY'

be.comes

lnDihel11'o...

'R:30!)

'f"'l

Hed

bf.CDtneS

"ftl,,,t.

beCCl'les

...

e \:)ecomes vic,e.,-.

·R311.

titlt

doeS

!\Of:

nc-U

R.321

____

AAr...rIK

___

10.7V C

316

z:::

10116

R316

22K

·only

tnDl1Ocln·omAtic.

·no ccioY,

edDY

-fad~

away

·no

monochroma.tic..

+.d-

IC301

HAII247

B.P

AMP,

ACC,KI

TINT,

APC,

VCO

a COLOR

OEM

· fnultr

tint

"c.cicr

no;SE!

• cclor el'"rcr

faulty

color

sync.

. czlcr

beat

·dc.

..•

.----c306

Diff4e~n"ti4TeS,'5rnc.

si~

",,\,

a,"'cl

clela.ys

fho.o;e

of- pllise.

'OI'en : r-o"coloY

. short :

1'0

pIC

tttYl!.

dark

yaster

TP~5°1

0301:!:

S2473H

~5~6

C306

180

0302_.

ER,

1 S 2

3 H

,-c~r-.-:.::I

5::.:.1.:.55:,:5::.,

0303-0308

W06-A,W06-8,151555

R310

L351

330

~~-+----------~~.-~

or 1512473

0307

R311

330

~----------~------.-~~-+-~

0306

I I R312 3301

G~53--~~~I~~~I--r-~I-~

R314

•

J30g

2.2K

-:-

..!...

R322

10K

030'1,

R307.R30!i'-L.----.

For

phase

shOt

C310,C311,C312

---,

'By"

p'l~'"

condl!nser

.---I.~-,

Foy

noise

prevention

.shon::

c:oloY'

errOl"

'C30'7

short

:5C~n

bec..::m'!s

bei'.1ht

\:I."t

ccjOl"

'00'7

opt'll

}

obtain~

"R307

open

:no

color

"R301?

cpen

(ootp'lt

"IT;..

ba.se-~TCu.ncied

with

T6rect to

\U7'O\i"o."c:e

sl'y,a.I)

<:310

shan'

caree.n

Y'IsteY

C311

shcrt:

red

ro.S

teY

·c312.

short:

bilAe.

ra.s!er

130 I. c 3

&>,R3o'7,

c309 -

3.s8MH~

filhr

·'('3ot

o~n

,';hoT"t }

·c308

op~"

:tlO

colo

...

'R30'1

open

3017

ope

...

sho~t

G3\3,C

314,

R3\3.

R~\4

APC

s",ooth~,,:}

'C313

Shod}

.c314

shOTt

:1\0 color

. R 3

i4-

open.

L351,L31>2.

L3S3

;,h

t"re:tu'!n"ff:

~Y"

L?S

opQ.n:

ydlcw

fictu.re

· L

~52

:cpM;c.rictLlI't.

· L 3

S"3

,,~"

m<l:1',enta

ftC.tun~

COLOR

DEM. CIRCUIT

"f..301.R315;1~3

1.6.

R3f'7

R3i'iLR321,C316

Su.~r-scene

ccnh-ol

'R~15

open.

316

open

Got\t~st

'R31'T

oru'

becomes

.R32\

open weo.k

·(.31b

short

·xaot

open

CIRCUIT NOTES

Although speciflcally written on the

170

1 monitor, most circuit theories

apply

the

1702

also. Refer to the

1702

schematic

for

differences

com-

ponent values and Identification.

D302.---...,

Be"'" I:",iter

diode

. short :

br;~h+et1.

R310,R3i \,R3i2

----,

pl"t'tection reSistor

'R310

"pet:

yellow

i';ct

......

'R311

·R312.

cpen: cyanic p;cture

open. :

1Tla.'Jhent~

pIC

ure

D303

.......

D308

Roted,on.

frt,.,,,

CRT

SFrki"~

·E>303

short:

bllA4e

picture

"i)

304

short:

....

pIC

Tt.U'e

,-£)30 S

short:

~reet'\

fic

rure

1 1

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 52 53

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Commodore 1702 Service Manual Page 16

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