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RQT7790

15

Specifications

1. Damage requiring service

—The unit should be serviced by

qualified service personnel if:
(a)The AC power supply cord or AC adaptor has been damaged;

or

(b)Objects or liquids have gotten into the unit; or
(c)The unit has been exposed to rain; or
(d)The unit does not operate normally or exhibits a marked change

in performance; or

(e)The unit has been dropped or the cabinet damaged.

2. Servicing

—Do not attempt to service the unit beyond that

described in these operating instructions. Refer all other servicing
to authorized servicing personnel.

3. Replacement parts

—When parts need replacing ensure the

servicer uses parts specified by the manufacturer or parts that
have the same characteristics as the original parts. Unauthorized
substitutes may result in fire, electric shock, or other hazards.

Product Service

Product information

For product information or assistance with product operation:

In the U.S.A., refer to “Customer Services Directory” on the
back page.

In Canada, contact the Panasonic Canada Inc. Customer Care
Centre at 905-624-5505, or visit the website (www.panasonic.ca),
or an authorized Servicentre closest to you.

AMPLIFIER SECTION 

AK230

   

FTC output power

THD 10%, both channels driven

100 Hz – 10 kHz

69 W per channel (5 

)

  Total FTC power

138

 

W

RMS output power
  THD 10%, both channels driven

1 kHz

100 W per channel (5 

)

  Total RMS power

200 W

FM/AM TUNER, TERMINALS SECTION

Preset station

FM 15 stations

AM 15 stations

Frequency Modulation (FM)

Frequency range

87.9 – 107.9 MHz (200 kHz steps)

87.5 – 108.0 MHz (100 kHz steps)

Sensitivity

2.5 

Ø

V (IHF)

S/N 26 dB

2.2 

Ø

V

Antenna terminal(s)

75

 

 (unbalanced)

Amplitude Modulation (AM)

Frequency range

520 – 1710 kHz (10 kHz steps)

Sensitivity

S/N 20 dB (at 1000 kHz)

560 

Ø

V/m

Audio performance (Amplifier)

Input sensitivity/Input impedance

Aux

250 mV, 14.7 k

Phone jack

Terminal

Stereo, 3.5 mm (

1

/

8

˝) jack

SPEAKER SECTION 

AK230

Type

2 way, 2 speaker system (Bass reflex)

Speaker(s)

Woofer

16 cm (6

1

/

2

˝) cone type

Tweeter

6 cm (2

3

/

8

˝) cone type

Impedance

Input power (IEC)

100 W (Max)

Output sound pressure level

81 dB/W (1.0 m)

Cross over frequency

4 kHz

Frequency range

35 Hz–28 kHz (–16 dB)
50 Hz–26 kHz (–10 dB)

Dimensions (WxHxD)

220 x 330 x 201 mm
(8

21

/

32

˝ x 13˝ x 7

29

/

32

˝)

Mass

2.7 k

g

 (6.0 lb.)

GENERAL

Power supply

AC 120 V, 60 Hz

Power consumption

AK330

 : 238 W

AK230

 : 165 W

Dimensions (WxHxD)

  250 x 330 x 341 mm

(9

27

/

32

˝ x 13˝ x 13

7

/

16

˝)

Mass

AK330

: 7.1 k

g

 (15.7 lb.)

AK230

: 6.9 k

g

 (15.2 lb.)

Operating temperature range

+5 to +35

 

°C (+41 to +95

 

°F)

Operating humidity range

5 to 90

 

% RH (no condensation)

Power consumption in standby mode

AK330

: 0.38 W

AK230

: 0.34 W

Note:

1. Specifications are subject to change

without notice.
Mass and dimensions are approximate.

2. Total harmonic distortion is measured by

the digital spectrum analyzer.

3.

AK330

 The labels “HIGH” and “LOW”

on the rear of the speakers refer to High
frequency and Low frequency.

AMPLIFIER SECTION 

AK330

  

FTC output power

THD 10%, both channels driven

100 Hz–3 kHz

(Low channel)

64 W per channel (5 

)

3 kHz–10 kHz

(High channel) 60 W per channel (5 

)

Total Bi-Amp power

248 W

RMS output power

THD 10%, both channels driven

1 kHz

(Low channel)

90 W per channel (5 

)

10 kHz

(High channel) 90 W per channel (5 

)

Total Bi-Amp power

360 W

If the surfaces are dirty

To clean this unit, wipe with a soft, dry cloth.

Never use alcohol, paint thinner or benzine to clean this unit.

Before using a chemically treated cloth, read the instructions that
came with the cloth carefully.

Maintenance

For a cleaner, crisper sound

Clean the heads regularly to assure good quality playback and
recording.
Use a cleaning tape (not included).

4. Safety check

—After repairs or service, ask the servicer to

perform safety checks to confirm that the unit is in proper working
condition.

CASSETTE DECK SECTION

Track system

4 track, 2 channel

Heads

Record/playback

Solid permalloy head

Erasure

Double gap ferrite head

Motor

DC servo motor

Recording system

AC bias 100 kHz

Erasing system

AC erase 100 kHz

Tape speed

4.8 cm/s (1

7

/

8

 ips)

Overall frequency response
(+3 dB, –6 dB at DECK OUT)

NORMAL

35 Hz–14 kHz

S/N

50 dB (A weighted)

Wow and flutter

0.18% (WRMS)

Fast forward and rewind time

Approx. 120 seconds with

C-60 cassette tape

DISC SECTION

Discs played [8 cm (3˝) or 12 cm (5˝)]

(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3 formatted

disc)

(3) MP3

Bit rate

MP3

32 kbps–320 kbps

Sampling frequency

MP3

32 kHz, 44.1 kHz, 48 kHz

CD

44.1 kHz

Decoding

16 bit linear

Digital filter

8 fs

D/A converter

MASH (1 bit DAC)

Pickup

Wavelength

780 nm

Beam Source

Semiconductor laser

Audio output (Disc)

Number of channels

2 (Stereo) (FL, FR)

SPEAKER SECTION 

AK330

Type

3 way, 3 speaker system (Bass reflex)

Speaker(s)

Woofer

16 cm (6

1

/

2

˝) cone type

Tweeter

6 cm (2

3

/

8

˝) cone type

Super tweeter

Piezo type

Impedance

HIGH

 5 

LOW

Input power (IEC)

HIGH

 90 W (Max)

LOW

90 W (Max)

Output sound pressure level

83 dB/W (1.0 m)

Cross over frequency

2.6 kHz, 10 kHz

Frequency range

37 Hz–23 kHz (–16 dB)
44 Hz–22 kHz (–10 dB)

Dimensions (WxHxD)

240 x 330 x 230 mm

(9

7

/

16

˝ x 13˝ x 9

1

/

16

˝)

Mass

3.2 k

g

 (7.1 lb.)

Summary of Contents for SA-AK230

Page 1: ...cs and tracks Play Mode function 7 Program play 8 Repeat play 8 Marking a track 8 INTRO function Album scan 9 Title search function 9 Radio 10 Cassettes 11 Setting the time 11 Timers 12 Sound quality sound field 13 Other functions 13 External unit connections 13 Using an external unit 13 Using headphones not included 13 Auto off function 13 Convenient functions 13 Troubleshooting guide 14 Specific...

Page 2: ...our hearing Guard against this by setting your equipment at a safe level BEFORE your hearing adapts To establish a safe level Start your volume control at a low setting Slowly increase the sound until you can hear it comfortably and clearly and without distortion Once you have established a comfortable sound level Set the dial and leave it there Taking a minute to do this now will help to prevent ...

Page 3: ... rain or moisture does not operate normally or has been dropped IMPORTANT SAFETY INSTRUCTIONS Please check and identify the supplied accessories Use numbers indicated in parentheses when asking for replacement parts As of October 2004 Only for U S A To order accessories refer to Accessory Purchases on the back cover AC power supply cord 1 pc K2CB2CB00018 FM indoor antenna 1pc RSA0006 L Supplied ac...

Page 4: ...ide AK230 Speakers are designed identically so that no left or right channel orientation is necessary Note Keep your speakers at least 10 mm 13 32 away from the system for proper ventilation These speakers do not have magnetic shielding Do not place them near televisions personal computers or other devices easily influenced by magnetism You cannot take the front net off the speakers Caution Use th...

Page 5: ...utton SHIFT To use functions labeled in orange While pressing SHIFT press the corresponding button For buttons AUTO OFF CLOCK TIMER and rPLAY REC Dimmer Play timer record timer button DIMMER rPLAY REC 12 13 _ CD display Clock timer button CD DISP CLOCK TIMER 7 11 Numbered character buttons X X X X X10 1 9 0 A Z SPACE 7 10 CD skip search tape fast forward rewind tune preset channel select time adju...

Page 6: ...ill be ignored Some MP3 may not be played due to the condition of the disc or recording Recordings will not necessarily be played in the order you recorded them Lower case letters will be displayed as upper case MP3 information CD Do not use irregularly shaped discs attach extra labels and stickers use discs with labels and stickers that are coming off or with adhesive exuding from under labels an...

Page 7: ...bered buttons to select the track in the current album To select a 2 digit track press 10 once then the two digits To select a 3 digit track press 10 twice then the three digits Play starts from the selected track To stop play Press L CLEAR When playback ends The current play mode will be retained in memory until it is changed even if the unit is turned off Final disc For example if play starts fr...

Page 8: ...P3 Preparation 1 Press DISC and then 1 5 to select the disc 2 Press L CLEAR 1 Press PROGRAM PGM appears 2 Press ALBUM or to select the album To select an album directly press the numbered buttons after pressing ALBUM or To select a 2 digit album press 10 once then the two digits To select a 3 digit album press 10 twice then the three digits 3 Press g REW 3 or f 4 FF to select the track To select a...

Page 9: ... mode Blinks to indicate album title search mode INTRO function Album scan MP3 You can find an album by listening to the first track of all albums in the current disc for 10 seconds each Remote control only Preparation Press J CD and then L CLEAR 1 Press INTRO INTRO function starts INTRO function is cancelled after playing the first track in the last album on the current disc 2 While your desired ...

Page 10: ...wn PLAY MODE again to cancel the mode MONO is also cancelled if the frequency is changed To receive FM broadcasts allocated in 0 1 MHz steps Main unit only Hold down TUNER BAND The display changes in a few seconds to show the current minimum FM frequency Continue to hold down the button until the minimum frequency changes The step is changed Repeat the above to change the step back Note After chan...

Page 11: ...rotected cassette Cover the hole with adhesive tape To erase a tape 1 Press TAPE and then L STOP 2 Insert the recorded tape into deck 2 Ensure there is no tape in deck 1 3 Press a REC Selection of tapes for recording Use normal position tapes High position and metal position tapes can be used but this unit will not be able to record or erase them correctly Preparation Wind up the leader tape so re...

Page 12: ...t is on To change the play record times Do steps 1 2 and 4 To change the source or volume 1 Press SHIFT rPLAY REC to clear the timer indicator from the display 2 Make changes to the source or volume 3 Do steps 3 to 4 To check the settings Press SHIFT CLOCK TIMER while the unit is on to select rPLAY or rREC The settings are shown in the following order Play timer on time off time source volume Reco...

Page 13: ...xternal unit s instruction manual External unit connections An analog player with a built in phono equalizer can be connected For details refer to the instruction manual of the units which are to be connected When units other than those described above are to be connected please consult your audio dealer Analog player not included Rear panel of this unit L R R L Auto off function Remote control on...

Page 14: ...he antenna are incorrect If you are using an indoor antenna change to an outdoor antenna The TV antenna wire is too close to the unit Separate the antenna wire of the TV set from the unit Poor quality sound Recording is not possible Clean the heads If the erasure prevention tabs have been removed cover the holes with adhesive tape The display is wrong or play won t start Cannot perform all disc ra...

Page 15: ...0 7 1 kg 15 7 lb AK230 6 9 kg 15 2 lb Operating temperature range 5 to 35 C 41 to 95 F Operating humidity range 5 to 90 RH no condensation Power consumption in standby mode AK330 0 38 W AK230 0 34 W Note 1 Specifications are subject to change without notice Mass and dimensions are approximate 2 Total harmonic distortion is measured by the digital spectrum analyzer 3 AK330 The labels HIGH and LOW o...

Page 16: ... Authorized Servicer or damage that is attributable to acts of God THERE ARE NO EXPRESS WARRANTIES EXCEPT AS LISTED UNDER LIMITED WARRANTY COVERAGE THE WARRANTOR IS NOT LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THIS PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY As examples this ex cludes damages for lost time travel to and from the servicer loss of media or i...

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