Motorola 17K1BE, Service Manual

Page: 24 / 30

SERVICE MANUAL SUPPLEMENT
( S U P P L E M E N T TO T S - 1 7 2 S E R V I C E M A N U A L S 5 4 P 7 0 2 1 7 4 & 5 4 P 7 0 2 1 9 1 )
CHASSIS
TS-I72A
N O T E : T h is S e r v i c e M a n u a l s u p p le m e n t c o n t a in s s c h e m a t ic
d ia g r a m & s u p p le m e n t a r y p a r t s l i s t c o v e r i n g the T S -1 7 2 A
T V c h a s s i s . A lig n m e n t d a ta , s e r v i c e a d ju s t m e n t s , e t c . ,
f o r th is c h a s s i s a r e i d e n t ic a l (w ith the e x c e p t io n sh o w n b e ­
lo w ) w ith that f o r the T S -1 7 2 and w ill b e fo u n d in the T S -1 7 2
S e r v i c e M a n u a l, P a r t N o . 5 4 P 7 0 2 1 7 4 .
CH A SSIS T S -1 7 2 A - S a m e a s T S -1 72 e x c e p t t e s t s o c k e t w i r ­
in g r e v is e d .
R E V IS E D H O R I Z O N T A L O S C I L L A T O R A D J U S T M E N T
(F O R T S -1 7 2 A )
T h e H o r iz o n t a l H o ld c o n t r o l sh o u ld h a v e a s y n c r a n g e o f a p ­
p r o x i m a t e l y 180 d e g r e e s . If the c o n t r o l i i s t o o c r i t i c a l , a d ­
ju s t a s f o l l o w s :
1. S h o r t ou t H o r iz o n t a l O s c i l l a t o r c o i l L - 2 3 . T h is m a y b e
d o n e b y s h o r t in g the 2 p in s o f the r e c e p t a c l e (t e r m i n a l s t r i p
in s o m e s e t s ) on t o p o f the c h a s s i s .
2. W ith the c e n t e r in g l e v e r , m o v e the p ic t u r e to the le ft
s o that the r ig h t e d g e o f the r a s t e r c a n b e s e e n . A d ju s t the
H o r iz o n t a l H o ld c o n t r o l to a b o u t the m id d le o f it s r a n g e and
n ote the w id th o f the b la n k in g p u ls e .
(T h e b la n k in g p u ls e
a p p e a r s a s a g r a y b a r at the r ig h t e d g e o f the p i c t u r e ) .
3. R e m o v e s h o r t f r o m H o r iz o n t a l O s c i l l a t o r c o i l .
4 . A d ju s t H o r iz o n t a l O s c i l l a t o r c o i l u n til the s a m e a m ou n t
o f b la n k in g p u ls e c a n b e s e e n a s w a s n o t e d in S te p 2.
REPLACEMENT PARTS LIST SUPPLEMENT
N O T E : W h en o r d e r i n g p a r t s , s p e c i f y m o d e l and c h a s s i s n u m b e r o f s e t in a d d itio n to p a r t n u m b e r and d e s c r i p t i o n o f p a r t .
T h e fo llo w in g p a r t s a r e r e p la c e m e n t s f o r o r a d d itio n s to , the o r i g i n a l it e m s l i s t e d in the T S -1 7 2 S e r v i c e M a n u a ls ( p a r t n o s .
5 4 P 7 0 2 1 74 & 5 4 P 7 0 2 I 9 1)
Ref.
No. Part
Number
Description
List
Price
CHASSIS PARTS
Resistors
R-105 6R6326
Transformers
ELECTRICAL
100 10% £W............ doz 1.20
T-1 1X702893
Mixer IF: with cores & mtg
nuts (when 6AG5 used in
IF’s ) ....................
.85
Ref.
No.
T-2
Tubes
Part
Number
1X703335
V-5 6AG5
or 6CB6
or 6BC5
Description
3rd IF: with core, mtg nut,
C35, & colored leads (when
Xtal used as detector)....
3rd IF amp
m
List
Price
1.25
P R I C E S S U B J E C T T O C H A N G E W I T H O U T N O T I C E
4 5 4 5 A U G U S T A B O U L E V A R D
&rftC.
C H I C A G O 51. I L L I N O I S
PART NO.
54P7 10250
Price 10 Cents
PRINTED m u . S. A.
Scanned by mbear2k - Jan 2012