RCA Victor TRK-12, Manual

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TRK9, TRK90, TRKI2, TRKI20
TELEVISION RECEIVER
Electrical Specifications
RCA TUBE COMPLEMENT
In KC-4,
( I ) RCA.
( 2) RCA.
( 3) RCA
( 4) RCA
( H RCA
( 6). RCA-
( 7) RCA
( 8) RCA
Kfl
9) RCA
(10) RCA-
(11) RCA
(12) RCA
RCA
KC-4B (TRK-12) and KC-4A, KC-4C (TRK-9) Video Chassis:
6 A C 7/1852.. . . . . . . . . . . . . . . . . . . . . . . 1st Det.
6 J 5 .. . ................... ..........-................... . . Oscillator
6 A B 7 / 1 8 5 3 . . . . . . : . . . . . . . . . . . . . . . 1st Pix. IF .
6AB7/1853........................
2nd Pix. I.F.
6A B7/1853.................................... .. 3rd Pix. I.F.
6AB7/1853......................................... 4th Pix. I.F.
6A C 7/1852.. . . . . . . . . . . . . . . . . . . 5th Pix. I.F.
6 H 6 ................
Pix. 2nd Dct.
6F8-G............................................... AVC or Limiter
6 A C 7/1852.. . . . . . . . . . . . . . . . . . . Video Amp.
6 H 6 .......................
D.C. Restorer
12AP4/1803-P4 (TRK-12) or
9AP4/1804-P4 (T R K -9 ).......... Kinescope
(13) RCA-6SK7........................................ .. 1st Sound I.F.
(14) RCA -6AB7/1853.. . . . . . ’. . . . . . . . . . . 2nd Sound I.F.
(15) R C A -6H 6................................. Sound 2nd Det.'AVC
(16) RCA-6N7.................... jV .. . . . . . , 1st Sync. Sep.-Amp.
(17) R CA '6Y 6'G ............. ............. . . . . . . . . . 2nd Sync. Sep.
(18) R C A -6N 7..i f .................................. ............ Sync. Amp.
(19) RCA'6N7 .................................. Hor. Osc.-Discharge
(20) RCA -6L6....................... ....... . .........
H or. O utput
(21) RCA-5V4G (60 cycles) or
RCA'25Z6 (50 c y c l e s ) . . . . . . . ........... H or. Damping
(22) RCA-6N7....................... Vert. Osc.-Discharge
(23) R C A '6 J5 .. . . . . . . . . . . . . . . . . . . . . . . . . . . Vert. O utput
In KK-7, KK'7D (TRK-12) and KK-7A, KK-7E (TRK-9) Television Socket Power Units:
(24) RCA-5T4............................. Low Voltage Rectifier (25) RCA-2V3-G. . . . . . . .
In KC-4F, KC-4J (TRK-120) and KC-4H (TRK-90) Video Chassis:
High Voltage Rectifier
( 1) RCA-6AC7/1852................................ 1st Det.
( 2) R C A -6J5....................... Oscillator
( 3) RCA-6AB7/1853................. 1st Pix. I.F.
( 4) RCA-6AB7/1853......... 2nd Pix. I.F.
( 5) RCA-6AB7/1853........................... 3rd Pix. I.F.
-( 6) RCA-6AB7/1853............. 4th Pix. I.F.
( 7) RCA -6AC7/1852.. . . . . . . . . . . ------- . . . 5th Pix. I.F.
( 8) R C A -6H 6............................. .................... Pix. 2nd Det.
( 9) RCA-6SQ7 ................. . . . . . . . ............. ...
Limiter
(10) RCA-6AC7/1 8 5 2 . . . . . . .......... Video Amp.
(11) RCA-12AP4/1803-P4 (TRK-120) or
RCA-9AP4/1804-P4 (T R K -90).............. Kinescope
Note: An RCA-6H6 D.C. Restorer is added in some TRK-
(12) RCA -6SK 7.. . . . . . . . . . . . . . . . . . . . . . . 1st Sound I.F;
(13) R CA -6AB7/1853............ ..
2nd Sound I.F.
(14) RCA-6H6........... .. Sound 2nd Det.-AVC
(15) RCA-6N7. . . . . . . . . . . . . . . . . . . 1st Sync. Sep.-Amp.
(16) RCA-6Y6-G.. . . . . . . . . . . ; . . . . . . . . . 2nd Sync. Sep.
(17) R C A -6N 7.. . . . . . . . . . . . . . . . . . . . . . . . . . Sync. Amp.
(18) R C A -6N 7................................... Hor. Osc.-Discharge
(19) RCA-6L6......... ......................
H or. O utput
(20) RCA-5V4-G (60 cycles) or
RCA-25Z6 (50 c y c l e s ) ....................... H or. Damping
(21) RCA-6N7........... ........................... Vert; Osc.-Discharge
(22) R CA -6J5.. . . . . . . . . . . . . . . . . . . . . . . . . Vert. O utput
120, TRK-90.
In KK-7F,. KK-7J (TRK-120) and KK-7H (TRK-90) Television Socket Power Units:
(23) RCA-5U4G (60 cycles, without D.C. Restorer),
RCA-5T4 (60 cycles, with D.C. Restorer), or
RCA-5T4 (50 cycles)............... Low Voltage Rectifier
TELEVISION CHANNELS (Selector Switch Positions)
1 . . . . . . . . . . . . 50 to 56 me. 3 . . . . . . . . . . . 66 to 72 me.
2 ...................... 60 to 66 me. 4 . . . . . . . . . . . 78 to 84 me.
5 ........................84 to 90 me.
PICTURE SIZE (Approximate Mask Dimensions)
TRK-9, TRK-90............................... I p x 7>/4 in.
TRK-12, TRK-120.......................................7% x m in.
(24) RCA-2V3-G................................. High Voltage Rectifier
Overall Video Band W id th .. . . . . . . . . . . . . . . . . . . . . . 4 me.
Scanning. . . . . . . . . . . . . . . . . . . . . . . . . . Interlaced, 525 line
Horizontal (Line) Scanning Frequency
(Sawtooth W av e). . . . . . . . . . . . . . . . . . . . . . 15,750 cps
Vertical (Field) Scanning Frequency
(Sawtooth W av e). . . . . . . . . . . . . . . . . . . . 60 cps
Frame Frequency (Picture Repetition R a te ) .. . . . . . . 30 cps
Note: 7 his sayięc- note includes all chant/cs that have been incorporated since initial production, including deletion of
the 44-50 in.c. channel and addition o f the 60-66 m.c. channel.
IM P O R T A N T P R E C A U T IO N S
A good ground should be connected to the re­
ceiver at all times.
Always wear gloves and shatter-proof goggles
when handling Kinescope tubes.
Do not eliminate the protection afforded by the
interlock switches.
ALW AYS replace the shield can over the 2V3-G
high voltage rectifier. The most dangerous portion
of the H.V. supply is the plate lead of the 2V3-G
tube.
Do not measure any voltages on the video chassis
unless the primary leads of the high voltage trans­
former have been unsoldered from the supply line,
and taped.
Use -only one hand when working on the video
or high voltage SPU chassis, and always connect a
shorting lead to ground (first)* then to the high
side of both high voltage filter capacitors.
Make no voltage measurements on the high volt-
age (7,300 volts) SPU chassis.
W ork on a television receiver should not be at­
tempted by anyone who is not thoroughly familiar
with the precautions necessary when working on
high voltage equipment.