High Voltage Power Supply, Chassis 120113B - Emerson 614 Service Manual

Emerson Radio
1) Added a single lug terminal strip between soc­
kets V-l and V -ll.
Transferred junction of R-66 (4.7K ), R-67
(2.2K ), and C-53 (.001 mfd. mica) from dum­
my lug under vertical output transformer to
new dummy lug terminal.
Transferred wiring from lug 8 of V I 1 socket
to the empty lug on terminal strip under verti­
cal output transformer.
Removed jumper wire connecting lugs 3 and
4 of V-6 socket.
Transferred jumper wire located between cen­
ter shield pin and lug 4 of V-6 socket to lug
3 of V-6 socket.
Transferred yellow lead from hig 5 to lug 3
of V-6 socket.
Removed yellow lead between lug 3 of V - l 3
socket and lug 2 of V -l7 socket.
8) Transferred R-51 (270K) from lug 2 of V-17
Socket to lug 3 of V - l 3 socket.
Cut jumper between center shield pin and lug
4 of V -l2 socket.
10) Transferred all wiring from lug 4 of V -l2 soc­
ket to lug 6 of V -l2 socket.
11) Transferred yellow lead from lug 8 to lug 6
of V - l 3 socket.
12) Removed spaghettied jumper between lugs 6
and 8 of V-13 socket.
13) Removed jumper wire between lugs 6 and 7
of V -l4 socket.
14) Transferred yellow lead from lug 7 to lug 3
of V-14 socket (lengthened wire).
15) Transferred jumper wire from lug 7 to lug 6
of V-14 socket.
16) Removed wire between lug 2 of V-16 socket
and lug 6 of V-14 socket.
17) Transferred R-99 (4.7 meg.) from lug 2 of V-
16 to lug 3 of V14 socket.
18) Transferred R-37 (4.7K ), from lug V-8 soc­
ket to the electrolytic shield lug (B -).
19) Transferred all wiring from lug 7 to lug 6 of
V-10 socket except the yellow lead between
lug 3 of V-8 socket and lug 7 of V-10 socket.
20) Added a yellow lead between lug 6 of V-10
socket and electrolytic shield lug (B -).
21) Removed jumper wire between lugs 6 and 7
of V-10 socket.
22) Inserted new leads between the
points:
Lugs 4 and 5 of V-6 socket to lug 8 of V-13
socket.
Lug 8 of V-13 socket to lug 2 of V-17 socket.
c) Lug 8 o f V-13 socket to lug 4 of V-12 socket.
d) Lug 4 of V-12 socket to lug 8 of V - l l socket.
e) Lug 8 of V -l socket to lug 7 of V-14 socket.
f) Lug 7 of V-14 socket to lug 2 of V-16 socket.
CODE M A RK IN G — TR IA N G LE 4 A : Same
h.
as for code marking Triangle 4, but includes built-
in (internal) antenna and following revisions:
1) Replaced jumper lead between pin 7 (cathode)
of V-9 and terminal strip with r.f. choke L-13,
part no. 705002.
20
2) Inserted C-17 (1500 mmf.) between pin 7 of
CODE M AR K IN G — T R IA N G LE 4 W : Same
as for code marking Triangle 4 > , but includes im­
proved mechanical focus
" wobble plate/' and'following revisions:
1) Removed end of R-26 (3.9K ) connected to
2) Transposed erid resistors R-51 (270K) and
3) Removed R-102
CODE M A RK IN G — TR IA N G LE 5: Includes
k. CODE M ARKIN G — TR IA N G LE 4N or 5 N :
Same as for code markings Triangle 4 or Trian­
gle 5, but with different horizontal output trans­
former T-9, part no. 738026, replacing part no.
738038, and following change:
1) R-102 (10K ) wired to B+ 180-volt point.
CODE M AR K IN G — Q P :
used in Models 644 and 647, may use a type 12-
QP4 in place of the type 12LP4 kinescope.
letters QP stamped next to the triangular code
marking denote the use of this tube.
nens used in such receivers will differ to the ex­
tent indicated below:
SYM BOL
L-10
L-8, L-9
V-25
-------
1-1
C-36, C-49
* C-81
*N ote that the m arkings on filter condenser C-36, C-49, part no.
925165 differ from those used on part no. 925162, shown in the
schematic diagram .
Circuit changes include the following:
1. C-81
2. C-63 (.0005 mfd.) returned to pin 5 of V -19, instead of B— .
following
Scanned by mbear2k - Jan 20121/17
Fig. 5-12— High Voltage Power Supply— Chassis 120113B
V-8 and chassis.
and centering using
chassis; rewired to B+ 125-volt point.
R-82 (470K) of V-17.
(10K ) from B +
point; rewired to B + 125-volt point.
all revisions listed under code markings tri­
angle 4, Triangle 4A, and Triangle 4W.
PART
12LP4
Focus coil 708025
708130 or
Deflection yoke
708130R
Kinescope
810003
Anode cap 440011
Ion trap 708086
(Double)
Filter condenser*
925162
(Electrolytic)
Condenser 923062
(.05 mfd.)
(.05 mfd.) disconnected from hor. size coil L-6.
HIGH V O tfA G E
R E C T IF IE R H O R It. 0 A M P E R
V-18
1B3 6T /0O I6
180-volt
Chassis 120113B,
The
The compo-
PART N O .
12QP4
708033
708036
810017
470490
708085
(Single)
925165
Not used
955298
1500
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