Panasonic CQ-R223W manual Troubleshooting continued, Specifications, Radio, General, Cassette Tape

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Troubleshooting (continued)

Specifications

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❐Radio

Trouble

Much noise in FM stereo and monaural broadcasts.

Preset station is reset.

Cause/Step

The antenna ground lead is not connected properly.

➡Connect the antenna ground lead properly.

The radio antenna is not extended enough.

➡Extend fully the radio antenna.

Battery cable is not correctly connected.

➡Connect the battery cable to the terminal that is always active.

❏ General

Power Supply	: 12 V DC (11 V – 16 V) Test Voltage 14.4 V, Negative ground
Maximum Power Output	: 50 W ⋅ 4 (at 4Ω )
Tone Action	: Bass ; ± 12 dB at 100 Hz
	Treble; ± 12 dB at 10 kHz
Current Consumption	: Less than 2.5 A (tape mode, 0.5 W 4-speaker)
Pre-Amp Output Voltage	: 2.0 V (CD Play mode; 1kHz 0 dB)
Speaker Impedance	: 4 Ω (4 - 8 Ω acceptable)
Dimensions	: 178(W) ⋅ 50(H) ⋅ 155(D) mm

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❐Cassette Tape

Trouble

No sound.

Tape sound quality is poor.

High tones are improperly emphasized.

Reproduction of high tones is poor.

Wow and flutter level is very high.

Cause/Step

Blank tape is inserted in the unit.

➡Insert recorded tape into the unit.

Heads are dirty.

➡Clean heads. (Ask a service representative for advice.)

Poor quality tape.

➡Use better quality tape.

Dolby B NR tape plays with Dolby B NR off.

➡Set Dolby B NR to ON.

Metal type tape plays with normal mode.

➡Change Normal mode to Metal mode.

Non-Dolby B NR tape plays with Dolby B NR on.

➡Set Dolby B NR to OFF.

Normal type tape plays with Metal mode.

➡Change Metal mode to Normal mode.

Heads are magnetized.

➡Demagnetize heads. (Ask a service representative for advice.)

Tape running mechanism is dirty or out of order.

➡Clean tape running mechanism, or repair it. (Ask a service representative for advice.)

Weight : 1.4 kg

❏AM Radio

Frequency Range	: 531 – 1 602 kHz
Useable Sensitivity	: 28 dB µV (S/N 20 dB)

❏FM Stereo Radio

Frequency Range	: 87.5 - 108.0 MHz
Useable Sensitivity	: 13.2 dB µV (S/N 30 dB)
Stereo Separation	: 35 dB (at 1 KHz)

❏Tape Player

Reproduction System	: 4-track, 2-program stereo
Tape Speed	: 4.76 cm/sec
FF/REW Time	: Less than 110 sec (C-60)
Frequency Response	: 35	- 14 000 Hz ±3 dB (normal)
	: 35	- 17 000 Hz ±3 dB (metal)
Wow and Flutter	: 0.12 % (WRMS)
Signal/Noise Ratio	: 52 dB (Dolby B NR OFF)
	: 62 dB (Dolby B NR ON)

Note: Specifications and design are subject to modification without notice due to improvements in technology.

❐Remote Control

Trouble

Buttons are invalid for operation.

Cause/Step

Battery poles (+) (–) are reversed.

➡Insert the battery correctly.

Wrong battery.

➡Check the battery.

Battery has run down.

➡Replace the battery.

Remote control is in the wrong direction.

➡Direct the remote control at sensor (REMOTE) on the panel.

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol Aare trademarks of Dolby Laboratories Licensing Corporation.

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