Zenith Y504B - Page 80

20YT20 & 20YT20Z CHASSIS LAYOUT
80
ITEM
NO.
PART'
NO.
DESCRIPTION
ITEM
NO.
PART
NO.
DESCRIPTION
Cl
22-3177
390 PF DISC ±10%
500 V
R7
63-6495
POTENTIOMETER
C2
22-4613
.001 F.T.
500 V
R8
63-3238
POTENTIOMETER 50K
C3
22-5321
36 PF DISC ±5%
500 V
R9
63-6066 820 OHMS +± 10%
1 W
C4
22-4613
.001 F.T. ±20%
500 V R10
63-6045
270 OHMS ± 10%
1 W
C5
22-3550
3.3 PF GIMMICK ±10%
Rll
63-5638
180 OHMS ± 10%
2 W
C6
22-4613 .001 F.T.
500 V
R12
63-6010
39 OHMS ± 10%
1 W
C7
22-5037
.005 MFD DISC ±20%
25 V
R13A
63-6854
C8
22-2428
1.8 PF GIMMICK ±10%
R13B
63-6854
DUAL LOUDNESS CONTROL
C9
22-3621
22 PF DISC ±5%
500 V
R14A
63-6861
TREBLE FRONT
CIO
22-5130
8 PF DISC ±5%
500 V
RUB
63-6861
TREBLE REAR
CH
C12
22-4613 .001 F.T.
500 V
R15A
R15B
63-6889
63-6889
DUAL BASS CONTROL
C13
22-4613
.001 F.T.
500 V
R16
63-6059
560 OHMS ± 10%
1 W
C14
22-3034
.05 MFD DISC ±20%
25 V
R17
63-6059
560 OHMS ± 10%
1 W
C15
22-4523
1.1 PF GIMMICK ±10%
R18
63-6063
680 OHMS ± 10%
1 W
C16
22-3034
.05 MFD DISC ±20%
25 V
R19
63-6063
680 OHMS ± 10%
1 W
C17 22-3034
.05 MFD DISC ±20%
25 V
R20
63-5325
1 OHM ± 10%
1 W
C18
22-3034
.05 MFD DISC ±20%
25 V
R21
C19
22-3034
.05 MFD DISC ±20%
25 V
R22
63-5325
1 OHM ± 10%
1 W
C20
22-5038
.005 DISC ±20%
25 V
R23
63-5325
1 OHM ± 10%
1 W
C21
R24
63-5325
1 OHM ± 10%
1 w
C22
22-4523
1.1 PF GIMMICK ±10%
C23
22-3675 10 PF DISC ±10%
500 V
T1
95-2236
1ST I.F. TRANSFORMER F.M. 10.7 MC
C24
22-3400
3.9 PF GIMMICK ±10%
T2
95-2437
2ND I.F. TRANSFORMER F.M. 10.7 MC
C25
22-3034
.05 MFD DISC ±20%
25 V
T3
95-2438
3RD I.F. TRANSFORMER F.M. 10.7 MC
C26
22-2428
1.8 PF GIMMICK ±10%
T4
95-2324
RATIO DETECTOR TRANSFORMER 10.7
C27
22-3034
.05 MFD DISC ±20%
25 V
T5
95-2316
TRAP COIL
C28 22-3034
.05 MFD DISC ±20%
25 V
T6
95-2234
2ND I.F. TRANSFORMER A.M..455 KC
C29
22-14
.0047 MFD DISC ±10%
500 V
T7
95-2436
3RD I.F. TRANSFORMER A.M. 455 KC
C30
22-3896
5 MFD ELECTROLYTIC
25 V
T8
95-2233
1ST I.F..TRANSFORMER \..M. 455 KC
C31
22-13 .0033 MFD DISC ±10%
500 V
T9
95-2439
38 KC TRANSFORMER
C32 22-14
.0047 MFD DISC ±10%
500 V
T10
95-2313
DOUBLER MIXER TRANSFORMER
C33 22-5037
.005 DISC±20%
25 V
Til
95-2315
INPUT MIXER TRANSFORMER
C34 22-2729
.001 DISC ±20%
25 V
T12
95-2433
POWER TRANSFORMER
C35
22-3177 390 PF DISC ±10%
500 V
T13
95-2431
DRIVER TRANSFORMER
C36 22-3177
390 PF DISC ±10%
500 V
T14
95-2431
DRIVER TRANSFORMER
C37
22-3448 10 MFD ELECTROLYTIC
15 V
LI
S-71997
C38
22-5018 Al MFD ±10%
50V
FM ANTENNA COIL ASSEMBLY
C39A
22-4674
TWO SECTIONS VARIABLE CAPACITOR
L2
S-68976
FM DETECTOR COIL ASSEMBLY
C39B
22-4674
TWO SECTIONS VARIABLE CAPACITOR
L3
20-1256
TRAP COIL
C39C 22-4674
TWO SECTIONS VARIABLE CAPACITOR
L4
S-62887
FM OSCILLATOR COIL ASSEMBLY
C39D
22-4674
TWOSECTIONS VARIABLE CAPACITOR
L5
IN T1
1ST I.F. PRI. 10.7 MC
C40
22-3033 .02 MFD DISC ±20%
25 V
L6
IN T1
1ST I.F..SEC. 10.7 MC
C41
22-5188 .1 MFD ±10%
50 V
L7
IN T2
2ND 1..F. PRI.. 10.7 MC
C42
22-3010
.01 MFD DISC ±20%
25 V
L8
IN T2
2ND I.F. SEC. 10.7 MC
C43 22-3034 .05 DISC ±20%
25 V
L9
IN T3
3RD I.F. PRI. 10.7 MC
C44
C45
C46
C47
C48
C49
C50
22-3034
22-3896
22-3034
22-3034
22-3034
22-3645
.05 DISC ±20%
5 MFD ELECTROLYTIC
.05 MFD DISC ±20%
.05 MFD DISC ±20%
.05 MFD DISC ±20%
1000 PF MICA CAP ±10%
25 V
25 V
25 V
25 V
25 V
100 V
LIO
Lil
L12
L13
L14
L15
L16
IN T3
IN T4
IN T4
IN T5
IN T6
IN T7
20-1422
3RD I.F..SEC. 10.7 MC
RATIO DET. PRI. 10.7 MC
RATIO DET. SEC. 10.7 MC
TRAP COIL MIXER
2ND I.F..AM. 455 KC
3RD I.F.AM. 455 KC
TRAP COIL 10.7 MC
C51
C52
22-3896
5 MFD ELECTROLYTIC
25 V
L17
L18
S- 73 253
149-333
AM ANTENNA ASSEMBLY
IRON CORE SLEEVE
C53
C54
22-13
.0033 MFD DISC±10%
500 V
L19
L20
S- 66580
IN T8
AM OSCILLATOR COIL ASSEMBLY
1ST AM I..F..PRI.. 455 KC
C55
C56
C57
22-3896
22-4121
5 MFD ELECTROLYTIC
.047 MFD DISC
25 V
200 V
L21
L22
L23
IN T8
IN T9
IN T10
1ST AM I..F..SEC. 455 KC
38 KC TRANSFORMER
DOUBLER MIXER TRANSFORMER
C58
22-3879
1000 MFD ELECTROLYTIC
50 V
L24
IN Til
INPUT MIXER TRANSFORMER
C59
22-5316
500 MFD ELECTROLYTIC
50 V
L25
149-333
IRON CORE SLEEVE
C60
C61
22-3034 .05 MFD DISC ±20%
25 V
PL 1
100-384
STEREO IND. BULB
C62 22-5167
1000 MFD ELECTROLYTIC
30 V
PL 2
PL 3
PL 4
100-249
PILOT LIGHT #1847
C63
C64
22-3973
22-3034
100 MFD ELECTROLYTIC
.05 MFD DISC ±20%
25 V
25 V
100-249
100-249
PILOT LIGHT #1847
PILOT LIGHT #1847
C65
C66
C67
22-3034
22- 3687
22-3687
.05 MFD DISC ±20%
1 MFD ELECTROLYTIC
1 MFD ELECTROLYTIC
25 V
50 V
50 V
51
52
85-920
85-892
6 POSITION BAND SWITCH
STEREO MONAURAL SWITCH
C68
C69
Al
105-78
R/C NETWORK
C70
C71
C72
C73
22-5018
Al MFD CAPACITOR ±10%
50 V
XI
103-47
SILICON DIODE
22-5018
22-5012
Al MFD CAPACITOR ±10%
.15 MFD ±10%
50 V
50 V
X2
X3
X4
103-23
103-74
103-23
DIODE
CRYSTAL DIODE
DIODE
DIODE
DIODE
DIODE
C74
C75
22-5012
22-3255
.15 MFD ±10%
330 PF ±10%
50 V
500 V
X5
X6
103-23
103-23
C76
22-3255 330 PF ±10%
500 V
X7
103-23
C77
C78
C79
22-3599
22-3599
22-3415
.015 MFD ±10%
.015 MFD ±10%
.0068 MFD ±10%
50 V
50 V
25 V
X8
X9
X10
212-71
212-71
103-96
SILICON RECTIFIER
SILICON RECTIFIER
ZENER DIODE
C80
C81
C82
22-3415
.0068 MFD± 10%
25 V
22-5249 .1 MFD ± 20%
100 V
C83 22-5249
.1 MFD ± 20%
100 V
C84 22-5056
.02 MFD DISC ± 20%
25 V
C85
22-5056
.02 MFD DISC ± 20%
25 V
C86
22-5012 .15 MFD ± 10%
50 V
C87 22-5012 .15 MFD± 10%
50 V
C88
22-3687 1 MFD ELECTROLYTIC
50 V
C89
22-3687
1 MFD ELECTROLYTIC
50 V
C90
C91
C92
22-2376
47 PF ± 10%
500 V
22-2376
47 PF ± 10%
500 V
C93 22-5315
300 MFD ELECTROLYTIC
35 V
C94
22-5315
300 MFD ELECTROLYTIC
35 V
R1
63-4143
100 OHMS ± 10%
1/4 W
R2
63-4213 2.2K OHMS ± 10%
1/4 W
R3
63-4196
1.8K OHMS ± 10%
1/4 W
R4 63-4231
12K OHMS ± 10%
1/4 W
R5
R6
63-4297
470K OHMS ± 10%
1/4 W