CARE AND MAINTENANCE

TROUBLESHOOTING TIPS

RECEIVER/TUNER OPERATION

STEREO indicator is off.

Adjust the antenna.

The signal is too weak. Connect an external antenna.

The signal is Mono. Severe hum or noise.

The signal is too weak. Connect an external antenna.

Adjust the antenna.

REMOTE CONTROL OPERATION

The remote control does not operate the unit.

Another function is selected on the remote. Press the correct function button.

No batteries installed. (Included with your system) Install the batteries before attempting to operate the remote. Be sure to match the + and - ends of each battery to the symbols shown in the remote battery compartment.

The batteries are exhausted. Replace all batteries.

The remote is not pointed at the remote control sensor on the main unit or there is an obstacle between the remote and the main unit.

The remote control is too far from the main unit.

Move closer.

GENERAL

No audio.

Make sure the MUTE indicator on the front panel is off.

Make sure the speakers are turned on.

Check the connections.

Check the power cord connection. No audio from one channel.

Adjust the balance control.

Check the speaker wire connection or connecting cable. Noise when the TV is turned on.

The TV is too close to the audio system. Specific instruments sound displaced.

Check the connection between the receiver and the speakers.

The sound does not match the video.

Press the function button for the video source.

CLEANING THE EXTERIOR

Disconnect the system from AC power before cleaning the exterior of the system with a soft dust cloth.

EQUIPMENT SPECIFICATIONS

AMPLIFIER SECTION

Left/Center/Right (at 8 Ω):

RV-9968

20 watts/20 watts/20 watts

RV-9978

50 watts/50 watts/50 watts

 

0.9% THD @ 1 KHz

Rear Surround (at 16 Ω):

RV-9968

10 watts/10 watts

RV-9978

25 watts/25 watts

 

1.0% THD @ 1 KHz

Muting Attenuation:

50dB

Frequency Response

40-20 kHz +/– 3 dB

VIDEO SECTION

Input (Sensitivity/Impedance): 1 Vp-p/75Ω

Output (Level/Impedance):

1 Vp-p/75 Ω

Frequency Response:

10 Hz to 6MHz at +/- 3 dB

Signal to Noise Ratio:

40 dB

 

Crosstalk @ 3.58 MHz:

40 dB

 

AM TUNER SECTION

 

 

Frequency Response:

80 Hz -2 kHz +/– 6 dB

Usable Sensitivity:

800 uV/m @ S/N 20 dB

Signal to Noise :

38 dB

 

Image Ratio:

27 dB @ 1000 kHz

IF Rejection:

35 dB

 

FM TUNER SECTION

 

 

Frequency Response:

40 Hz-15 kHz +/– 3 dB

Quieting

24 dBu

Signal to Noise:

60 dB (stereo)/65 dB(mono)

Image Ratio:

40 dB

 

IF Rejection:

50 dB

 

Specifications are based on nominal measurements.

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RCA RV-9978, RV-9968 manual Care and Maintenance, Troubleshooting Tips, Cleaning the Exterior, Equipment Specifications

RV-9978, RV-9968 specifications

The RCA RV-9978 and RV-9968 are both notable models in the realm of vintage television receivers, showcasing the technological advancements of their era. Designed and manufactured by RCA, these models reflect the company's commitment to quality and innovation in television technology during the 1970s and 1980s.

The RCA RV-9978, known for its striking aesthetics and robust design, is a color television that attracted a lot of attention due to its high-quality picture and sound. One of its main features is the 25-inch screen, which offered a vibrant display that drew viewers into the experience of their favorite shows and movies. The RV-9978 incorporates advanced color fidelity technology, providing enhanced color reproduction that was ahead of its time. Furthermore, the model features a built-in tuner capable of receiving both UHF and VHF signals, allowing users to enjoy a wide array of channels.

In terms of audio, the RV-9978 includes integrated stereo speakers that deliver rich sound quality, giving a more immersive experience. It also boasts a remote control feature, which, during its release, was considered a breakthrough innovation. The design includes easily accessible controls for channel selection and volume adjustment, enhancing user experience and functionality.

On the other hand, the RCA RV-9968 is often celebrated for its compact design and portability. This model is geared towards users seeking flexibility, as it combines a smaller screen size, typically 19 inches, with lightweight construction. The RV-9968 maintains excellence in picture quality and sound output, ensuring viewers do not sacrifice performance for convenience. Like the RV-9978, it also supports both UHF and VHF signals.

Additional characteristics of the RV-9968 include a front-loading cassette, enabling users to play videos directly from tapes, a sought-after feature at the time. Its simplicity in navigation and user-friendly interface appeals to a broad audience, making it a popular choice for families and casual viewers alike.

Both models epitomize RCA's technological prowess during their period, with features reflecting a blend of practicality, innovation, and attention to quality. Collectively, the RV-9978 and RV-9968 stand as testaments to RCA’s influence on television technology, influencing future designs and setting standards that would be echoed in modern devices.