Panasonic RR-QR230E Bedienungsanleitung

Power requirement : DC 3.0 V (2 AAA size/LR03

batteries)

Power output : 300 mW (max.)

Frequency response : 300 Hz to 5,000 Hz (HQ mode)

300 Hz to 3,400 Hz (FQ mode)

300 Hz to 2,700 Hz (SP mode)

S/N : 37 dB (HQ mode)

Output jack : Earphone, ø 3.5 mm; 0.5 mW 16

Ω

Input jack : Mic, ø 3.5 mm; 0.56 mV plug in

power

Speaker : 20 mm 8 Ω

1 Safety Precautions 3

1.1. GENERAL GUIDELINES 3

1.2. Protection Circuitry 3

rights reserved. Unauthorized copying and

distribution is a violation of law.

RR-QR230E

Colour

(K)..........Black Type

Dimensions (W x H x D) :

Max dimensions : 39.3 mm x 105.5 mm x 17.2 mm

Cabinet dimensions : 38.8 mm x 105 mm x 14 mm

Mass :

With drycell batteries : Approx. 60 g

Without batteries : Approx. 37 g

Operational temperature range : 0°Cto40°C

Memory capacity : 64 MB

Battery life : [Whenusedat25°Conaflat,

stable surface]

Notes :

1. Specifications are subject to change without notices.

1.3. Safety Part Information 3

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices 4

IC Recorder

Specification

CONTENTS

Page Page

ORDER NO. MD0703032CE

3 Handling the Lead-free Solder 5

3.1. Service caution based on legal restrictions 5

4 Operating Procedures 6

4.1. Components of IC Recorder 6

4.2. Test Mode 7

5 Assembling and Disassembling 13

5.1. Notes 13

5.2. Disassembly flow chart 13

5.3. Main Parts Location Diagram 14

5.4. Disassembly of Rear Cabinet Assembly 15

5.5. Disassembly of the Main P.C.B 16

5.6. Disassembly of the LCD Spacer 16

5.7. Disassembly of the Speaker 17

6 Voltage Measurement & Waveform Chart 18

6.1. Voltage Measurement 18

6.2. Waveform Chart 20

7 Wiring Connection Diagram 21

8 Block Diagram 23

9 Notes Of Schematic Diagram 25

10 Schematic Diagram 27

11 Printed Circuit Board Diagram 31

12 Illustration of IC's, Transistors and Diodes 33

13 Exploded Views 34

13.1. Cabinet Parts Location 34

13.2. Packaging 35

14 Replacement Parts List 36

RR-QR230E

1 Safety Precautions

1.1. GENERAL GUIDELINES

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or

damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly

installed.

3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.2. Protection Circuitry

The protection circuitry may have operated if either of the following conditions are noticed:

No sound is heard when the power is turned on.

Stops during a performance.

The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are

“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.

If this occurs, follow the procedure outlines below:

1. Turn off the power.

2. Determine the cause of the problem and correct it.

3. Turn on the power once again after one minute.

Note:

When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

1.3. Safety Part Information

Safety Parts List:

There are special components used in this equipment which are important for safety.These parts are marked by in the

Schematic Diagrams & Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer’s

specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer.

Table 1

Reference No. Part No. Part Name & Description Remarks

ICP2 D4FBR7500008 IC RESETTABLE FUSES [M]

RR-QR230E

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called

Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and

semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage

caused by electro static discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equiped assembly, drain off any ESD on your

body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,

which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equiped with ES devices, place the assembly on a conductive surface such as aluminium

foil, to prevent electrostatic charge build up or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can

generate electrical charge to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most

replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or

comparable conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material

to the chassis or circuit assembly into which the device will be installed.

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the

brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD)

sufficient to damage an ES device).

RR-QR230E

3 Handling the Lead-free Solder

3.1. Service caution based on legal restrictions

3.1.1. General description about Lead Free Solder (PbF)

The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this

equipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin

(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that

of the normal solder.

Definition of PCB Lead Free Solder being used

The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.

(See right figure)

Service caution for repair work using Lead Free Solder (PbF)

The lead free solder has to be used when repairing the equipment for which the lead free solder is used.

(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)

To put lead free solder, it should be well molten and mixed with the original lead free solder.

Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.

Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt

the lead free solder.

Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30

degrees C (662±86°F).

Recommended Lead Free Solder (Service Parts Route.)

The following 3 types of lead free solder are available through the service parts route.

RFKZ03D01K-----------(0.3mm 100g Reel)

RFKZ06D01K-----------(0.6mm 100g Reel)

RFKZ10D01K-----------(1.0mm 100g Reel)

Note

* Ingredient: Tin (Sn), 96.5%, Silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%

RR-QR230E

4 Operating Procedures

4.1. Components of IC Recorder

4.1.1. Basic control operation on Quick Search Dial

RR-QR230E

4.2. Test Mode

4.2.1. Operation Check Mode

This unit is equipped with the functions to check it to record or playback usually, the display of LCD and USB connection.

Caution!

When the checking operation is performed, all recorded data will be cleared.

Note:

When there are no available items of any track, the unit can not be operated to check it to record and playback.

To continue record and playback check, erase unneeded items.

For operation check mode, external microphone (not included), earphone (not included) and computer are necessary.

Note:

−

− −

− You can use a condenser microphone without a built-in power supply. Plug type: 3.5mm (1/8in) monaural.

−

− −

− Hearphone: Plug type; 3.5mm (1/8in) monaural.

4.2.2. To Enter into test mode

1. Set to [HOLD] mode.

2. Installed batteries into unit.

3. Press & hold down the [ERASE] switch, follow by the [STOP] switch & [REW] button.

Note:

The item 3 shown above should be operate within 3 seconds.

4. After all segment of LCD Lights up, the unit is entered to Operation Check Mode. During the Operation Check Mode, the

Recording LED is blinking.

5. To cancel test mode, power off the unit by remove batteries

4.2.3. Test Mode

Note:

The LCD indications shown below are examples of test mode with the folder A and no recording data.

1. Enter into test mode, check all segment of LCD lights up.

Fig. 1

RECORDING INDICATOR: Flashing

2. Release the HOLD mode, by sliding [HOLD] switch down.

3. Check the display of LCD is displayed as shown below.

Fig.2

RECORDING INDICATOR: Flashing

4. Rotate the jog to the right [JOG +]

5. Check the display of LCD is displayed as shown below.

RR-QR230E

Fig.3

RECORDING INDICATOR: Flashing

6. Rotate the jog to the left [JOG -].

7. Check the display of LCD is displayed as shown below.

Fig.4

RECORDING INDICATOR: Flashing

8. Press the [REC/PAUSE] button.

9. Check the display of LCD is displayed as shown below.

Fig.5

10. Press the [STOP] switch.

11. Check the display of LCD is displayed as shown below.

Fig.6

12. Press the [FOLDER/MENU] switch.

13. Check the display of LCD is displayed as shown below.

RR-QR230E

Fig.7

Checking for model No

14. Press [ERASE] button.

Fig.8

Checking for software version

15. Press the [FF] switch.

16. Check the display of LCD is displayed as shown below.

Fig.9

17. Press the [VOL +] switch.

18. The recording begining(HQ-MONOURAL), Make sure that LCD recording level indication moves.

Input signal: Piano reproduction sound

Fig.10

19. Make it a non-signal input and level meter should not move.

20. Press the [VOL +].

21. It changes into the built-in stereo microphone (HQ-STEREO).

It confirmed that the file no. advances.

(input signal: Piano reproduction sound)

RR-QR230E

Fig.11

22. Insert the external microphone.

23. It changes into the external-microphone.

It confirmed that the file no. advances.

24. Record a sound source signal (L: 400Hz, R: 1kHz/1mV) from external microphone.

Fig.12

25. Press the [REW] switch.

26. Check the display of LCD is displayed as shown below.

(The File No. is displayed)

Note: Please delete everything and start over from scratch when the number of files is different.

Fig.13

27. Remove the external microphone.

28. Press the [VOL -] switch.

The sound recorded by item.17 is reproduced.(Vol.:max.)

29. The time counter of LCD advances and it checks that sound comes out from the speaker.

Fig.14

30. Press the [VOL -] switch.

The sound recorded by item.21 is reproduced.

31. The time counter of LCD advances and it checks that sound comes out from the speaker.

RR-QR230E

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