3
1. The heavy notes on the schematic denote the primary
signal path.
2. Unless otherwise noted, all voltages indicated on the
schematics are measured under the following conditions:
a. AC input at 120 volts, 50/60Hz.
b. All voltages are +/-10% with respect to ground. A
high impedance (10 megaohm) voltmeter must be used.
3. Unless otherwise specified:
a. Resistor values are in ohms.
b. Capacitor values are microfarads (uF).
c. Inductor values are in microhenries (uH).
4.
On PC board drawings, Square pad indicates:
a. Polarized Capacitors - Positive
b. Diodes - Cathode
c. Others - Pin 1
5.
WARNING
Parts marked with the symbol have critical
characteristics. Use only replacement parts recom-
mended by the manufacturer.
NOTES
Stereo Separation
45dB at 100Hz
45dB at 1,000Hz
35dB at 10,000Hz
SCA Rejection
65dB
AM Tuner
Sensitivity
20uV External Antenna Input
Signal To Noise Ratio
48dB at 30% modulation
58dB at 100% modulation
Harmonic Distortion
0.5% maximum at 50% modulation
Frequency Response
50Hz to 6kHz NRSC
Adjacent Channel Selectivity
45dB minimum IHF
Image Rejection
65dB minimum from 540Hz to 1,600kHz
IF Rejection
80dB minimum
PERFORMANCE SPECIFICATIONS con’t
C45
Summary of Contents for C45
Page 4: ...4 REAR VIEW TOPVIEWWITHCOVERREMOVED SECTION LOCATION ...
Page 5: ...5 6 BLOCK DIAGRAM C45 ...
Page 6: ...7 8 BLOCK DIAGRAM con t ...
Page 7: ...INTERCONNECT 1 9 10 C45 ...
Page 8: ...NOTES 11 12 ...
Page 9: ...13 15 14 C45 MAIN 749850 SH 1 OF 5 2A ...
Page 10: ...16 18 17 MAIN 749850 SH 2 OF 5 2B ...
Page 11: ...MAIN 749850 SH 3 OF 5 2C 19 20 C45 ...
Page 12: ...MAIN 749850 SH 4 OF 5 2D 21 22 ...
Page 14: ...25 26 MAIN 749850 PCB 2 ...
Page 15: ...DISPLAY 749851 SH 1 OF 2 3A 27 28 C45 ...
Page 17: ...DISPLAY 749851 PCB 3 31 32 C45 ...
Page 19: ...6 CHANNEL 749852 PCB 4 35 36 C45 ...
Page 21: ...DATA 749854 SCH and PCB 6 39 40 C45 ...
Page 23: ...TUNER 049084 SCH 8 43 44 C45 ...
Page 24: ...45 46 TUNER 049084 PCB 8 RAA1 SECTION 9 Rev B ...
Page 26: ...49 50 NOTES ...
Page 37: ...EXPLODED VIEW 61 62 C45 ...
Page 38: ...63 64 EXPLODED VIEW con t ...
Page 40: ...NOTES 66 ...
Page 41: ...REPACKING INSTRUCTION C45 67 ...