TEAC AG-790-A Service manual
Effective : Sep. 2005
NOTES
●
PC boards shown are viewed from parts side.
●
The p ar ts with no re fe re nc e number or n o parts num be r in the
exploded views are not supplied.
●
As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
●
Parts marked with this sign are safety critical components. They
must
be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
CONTENTS
1 SPECIFICATIONS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・2
3 EXPLODED VIEWS AND PARTS LIST
9
4 PC BOARDS AND PARTS LIST
13
5 REMOTE CONTROL LAYOUT
20
・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
AG-790A Versions
AG-790A
AM/FM STEREO Receiver
2 IC SPECIFICATIONS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・3
T/C,EUR,UK,230E,HKG
6 INCLUDED ACCESSORIES
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
21
1 SPECIFICATIONS
－2－
AG-790A
Amplifier Section
Output Power . . . . . . . . . . . . . . . . . . . . . . . . . .100 + 100 watts RMS (0.9 % THD, 1 kHz, 8 ohms)
Total Harmonic Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 % (at 80 watts,1 kHz)
Input Sensitivity/Impedance . . . . . . . . . . . . . . . . . . PHONO: 6.5 mV/22 kohms, LINE: 230 mV/22 kohms
Frequency Response . . . . . . . . . . . . . . . PHONO: 20 Hz to 20 kHz, ±3 dB, LINE: 20 Hz to 35 kHz, –3 dB
Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . PHONO: 75 dB (IHF-A), LINE: 90 dB (IHF-A)
Tone Control . . . . . . . . . . . . . . . . . . . . . . . BASS: ±10 dB at 100 Hz, TREBLE: ±10 dB at 10 kHz
Loudness Control (Volume at –40 dB Position) . . . . . . . . . . . . . . . . . . . . . . . . +4 dB at 100 Hz
FM Tuner Section (Without notes 98.1 MHz, 65 dBf)
Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 MHz to 108.0 MHz (100 kHz steps)[T/C]
87.5 MHz to 108.0 MHz (50 kHz steps)[EUR,UK,230E,HKG]
Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mono: 10 dBμV/m
50 dB Quieting Sensitivity . . . . . . . . . . . . . . . . . . . . . . . Mono: 15 dBμV/m, Stereo: 33 dBμV/m
Capture Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8 dB
Image Rejection Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 dB
AM Suppresion Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 dB
Harmonic Distortion (1 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . Mono: 0.5 %, Stereo: 0.5 %
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hz to 15 kHz, –3 dB
Stereo Separation (1 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 dB
Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mono: 70 dB, Stereo: 65 dB
RDS Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .YRS [EUR,UK]
NO[T/C,230E,HKG]
AM Tuner Section
Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530 kHz to 1,720 kHz (10 kHz steps)[T/C]
522 kHz to 1,620 kHz, 9 kHz steps [EUR,UK,230E,HKG]
Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB/m
Total Harmonic Distortion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 % at 100 dB/m
Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 dB at 100 dB/m
General
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 V AC, 60 Hz [T/C]
230 V AC, 50 Hz [EUR,UK,230E,HKG]
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 W
AC Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unswitched x 2, Total 100 W max (1 A max)
Dimensions (W x H x D). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435 x 144 x 330 mm
Weight (net). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4 kg
Standard Accessories
AM Loop Antenna x 1
FM Antenna x 1
Owner’s manual x 1
Remote Control Unit x 1
Battery (AA, R6, UM-3) x 2
Design and specifications are subject to change without notice.
Illustrations may differ slightly from production models.
2 IC SPECIFICATIONS
－3－
AG-790A
－4－
AG-790A
TTDDAA77331188DD ((IICC2233))
BBLLOOCCKK DDIIAAGGRRAAMM
－5－
NNJJMM44555566AA ((IICC2255))
AG-790A
－6－
AG-790A
NNJJMM22006688 ((IICC2211,,IICC2222))
－7－
CCDD44006666BB ((IICC2244))
AG-790A
AG-790A
TRANSISTOR, REGULATOR IC BLOCK DIAGRAM
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