Panasonic RF-D10EB User manual

© Panasonic Corporation 2014. All rights reserved.
Unauthorized copying and distribution is a violation of
law.
PSG1401003CE
DAB-FM Radio
Model No. RF-D10EB
RF-D10EG
RF-D10GN
Product Color: (K)...Black Type
(W)...White Type (EG, GN)
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Caution for AC Mains Lead (For EB only)----------- 4
1.3. Before Repair and Adjustment ------------------------- 4
1.4. Protection Circuitry ---------------------------------------- 4
1.5. Caution For Fuse Replacement------------------------ 4
1.6. Safety Part Information----------------------------------- 5
2 Warning -------------------------------------------------------------- 6
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices---------- 6
2.2. Service caution based on Legal restrictions -------- 7
3 Service Navigation ----------------------------------------------- 8
3.1. Service Information --------------------------------------- 8
4 Specifications ----------------------------------------------------- 9
5 Location of Controls and Components ------------------10
6 Self Diagnostic Mode ------------------------------------------11
7 Disassembly and Assembly Instructions ---------------12
7.1. Disassembly flow chart----------------------------------13
7.2. Types of Screws ------------------------------------------13
7.3. Main Parts Location Diagram--------------------------14
7.4. Disassembly of Rear Cabinet Block -----------------15
7.5. Disassembly of Power P.C.B., Battery (-)
P.C.B. and Battery (+) P.C.B.-------------------------- 16
7.6. Disassembly of D-AMP P.C.B.------------------------ 17
7.7. Disassembly of Volume P.C.B. ----------------------- 18
7.8. Disassembly of Main P.C.B. --------------------------- 19
7.9. Disassembly of Top Key P.C.B and
Headphone P.C.B. --------------------------------------- 22
7.10. Disassembly of Speaker (SP1) ----------------------- 25
8 Service Position ------------------------------------------------- 26
8.1. Checking of Power P.C.B. ----------------------------- 26
8.2. Checking of D-AMP P.C.B. ---------------------------- 27
8.3. Checking of Main P.C.B. (Side A) ------------------- 28
8.4. Checking of Main P.C.B. (Side B) ------------------- 30
9 Wiring Connection Diagram--------------------------------- 33
10 Schematic Diagram -------------------------------------------- 35
10.1. Schematic Diagram Notes ----------------------------- 35
10.2. MAIN CIRCUIT ------------------------------------------- 37
10.3. D-AMP, VOLUME, LED & HEADPHONE
CIRCUIT---------------------------------------------------- 38
10.4. TOP KEY / POWER / BATTERY (-) /
BATTERY (+) CIRCUIT--------------------------------- 39

2
11 Printed Circuit Board ------------------------------------------ 40
11.1. MAIN P.C.B. ----------------------------------------------- 40
11.2. DAMP / VOLUME / LED / HEADPHONE
P.C.B.-------------------------------------------------------- 41
11.3. TOP KEY / POWER / BATTERY (-) /
BATTERY (+) P.C.B.------------------------------------- 42
12 Appendix Information of Schematic Diagram --------- 43
12.1. Voltage Measurement & Waveform Chart --------- 43
13 Exploded View and Replacement Parts List ----------- 47
13.1. Exploded View and Mechanical replacement
Parts List --------------------------------------------------- 47
13.2. Electrical Replacement Parts List-------------------- 51

3
1 Safety Precautions
1.1. General Guidelines
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify
the original design without permission of manufacturer.
2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal
injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.
3. 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.
4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
5. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. measure the resistance value, with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1MΩand 5.2MΩ. When the exposed metal does not have a return path to the chas-
sis, the reading must be
1.1.2. Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15μF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1-1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
Figure 1-1

4
1.2. Caution for AC Mains Lead (For EB only)
1.3. Before Repair and Adjustment
Caution :
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
• Current consumption at AC 240V, at 50Hz during power on at volume minimum, (Selector : AUX mode) should be ~200 mA. (For
EB/EG/GN)
• Current consumption at AC 120V, at 60Hz during power on at volume minimum, (Selector : AUX mode) should be ~200 mA. (For
P/PC)
1.4. 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.
• Sound 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.
1.5. Caution For Fuse Replacement

5
1.6. 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, Exploded View & 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.
Safety Ref. No. Part No. Part Name & Description Remarks
10 RYKN0119C-K BACK CABINET ASS'Y GN-K
10 RYKN0119C-W BACK CABINET ASS'Y GN-W
26 RGNN0183 NAME PLATE EB-K
26 RGNN0184B NAME PLATE EG-W
26 RGNN0184A NAME PLATE EG-K
A1 K2CQ2YY00119 AC CORD EG-K EG-W
A1 K2CT2YY00097 AC CORD EB-K
A1 K2CJ2DA00014 AC CORD GN-K GN-W
A2 RQTN0172 O/I BOOK(En) EB-K
A2 RQTN0173 O/I BOOK(En/Ge/It/Fr/Du/Da/Cz/Sw/No) EG-K EG-W
A2 RQTN0174 O/I BOOK(En) GN-K GN-W
VA901 ERZE08A471CS VARISTOR
T901 RTPN1I1E06-G TRANSFORMER EG-K EG-W
T901 RTPN1I1G07-G TRANSFORMER EB-K GN-K GN-W
F901 K5G312Y00007 FUSE
JK901 K2AA2B000014 AC INLET
R206 ERJ2GEYJ105V 1M 1/16W

6
2Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi-
tive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-
trostatically Sensitive (ES) Devices.
The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge
(ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped 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 equipped with ES devices, place the assembly on a conductive surface such as alumi-
num foil, to prevent electrostatic charge buildup 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 sufficient 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, aluminum foil or compara-
ble 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) suf-
ficient to damage an ES device).

7
2.2. Service caution based on Legal restrictions
2.2.1. 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
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%
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)

8
3 Service Navigation
3.1. Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with original service
manual.

9
4 Specifications
Power supply
AC AC 230 V to 240 V, 50 Hz (For EB/GN)
AC AC 230 V, 50 Hz (For EG)
Battery DC 6 V (4 x R14/LR14, C)
Power consumption 7 W
Frequency range 7 W (100 Hz, 6 Ω)
FM 87.50 MHz to 108.00 MHz (50 kHz steps)
DAB/DAB+ BAND III 5A to 13F
(174.928 MHz to 239.200 MHz)
Terminal
Headphones Stereo, 3.5 mm jack (16 Ω)
Speaker Stereo, 3.5 mm jack
Full range 10 cm (4 Ω)
Output power 2 W (RMS 10% THD)
Battery life 2 W (RMS 10% THD)
FM Approx. 9 H (Manganese R14 battery)
Approx. 30 H (Alkaline LR14 battery)
DAB/DAB+ Approx. 12 H (Manganese R14 battery)
Approx. 40 H (Alkaline LR14 battery)
Dimensions (W x H x D): 251 mm x 138 mm x 91 mm
Mass:
With batteries Approx. 1.3 kg
Without batteries Approx. 1.0 kg
Operating temperature
range
0 °C to +40 °C
Operating humidity
range
35% to 80 % RH (no condensation)
Power consumption in
standby mode
0.6 W (approximate)
Note:
• Specifications are subject to change without notice.
Mass and dimensions are approximate.

10
5 Location of Controls and Components

11
6 Self Diagnostic Mode
This unit is equipped with features of service mode & doctor mode setting for checking the functions & reliability.
Here is the procedures to enter into Self Diagnostic Mode.
Step 1 : Turn on the unit.
Step 2 : Press [MENU] button and turn the jog [TUNER/SELECT] to the left or right.
Step 3 : Select [SYSTEM] and press [ENTER] button.
Step 4 : Turn the jog [TUNER/SELECT] to select [Factory Reset] and press [ENTER] button.
Step 5 : Press and hold [Preset 2], followed by the sequence to press [DISPLAY]→[AUTOTUNE]→[MENU] →[ENTER].
The software version is shown on the display. (The software version shown below is an example. It will be revised when there is an
update)
To exit the Self Diagnostic Mode
• Unplug the AC cord.

12
7 Disassembly and Assembly Instructions
• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo-
nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in this service
manual)
• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.
• During the disassembly and/or assembly process, please handle with care as there may be chassis components with
sharp edges.
• Avoid touching heatsinks due to its high temperature after prolong use.
• Be sure to use proper service tools , equipments or jigs during repair.
• Select items from the following indexes when disassembly or replacement are required.
•Disassembly of Rear Cabinet Block
•Disassembly of Power P.C.B., Battery (-) P.C.B. and Battery (+) P.C.B.
•Disassembly of D-AMP P.C.B.
•Disassembly of Volume P.C.B.
•Disassembly of Main P.C.B.
•Disassembly of Top Key P.C.B and Headphone P.C.B.
•Disassembly of Speaker (SP1)

13
7.1. Disassembly flow chart
The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the ser-
vicing.
To assemble the unit, reverse the steps shown in the chart below.
7.2. Types of Screws

14
7.3. Main Parts Location Diagram

15
7.4. Disassembly of Rear Cabinet
Block
Step 1 : Remove 5 screws.
Step 2 : Lift up Rear Cabinet Block.
Caution : Do not exert too much force as it may damage
the wiring within.
Step 3 : Release 3P Wire from the ribs.
Step 4 : Detach it from the connector (CN901) on the Power
P. C . B . .
Step 5 : Remove the Rear Cabinet Block.

16
7.5. Disassembly of Power P.C.B.,
Battery (-) P.C.B. and Battery
(+) P.C.B.
• Refer to “Disassembly of Rear Cabinet Block”
Step 1 : Remove 2 screws.
Step 2 : Remove the 2P wire from the slots and ribs as shown.
Step 3 : Release the catch..
Step 4 : Lift up the Power P.C.B., Battery (+) P.C.B.and Battery
(-) P.C.B. as arrow shown.
Step 5 : Remove the Power P.C.B., Battery (+) P.C.B.and Bat-
tery (-) P.C.B.

17
7.6. Disassembly of D-AMP P.C.B.
• Refer to “Disassembly of Rear Cabinet Block”
Step 1 : Detach the 8P wire from connector (CN602) on D-
AMP P.C.B..
Step 2 : Desolder the 1P wire at (CK602) on the D-AMP P.C.B..
Step 3 : Desolder the 1P wire at (CK600) on the D-AMP P.C.B..
Step 4 : Desolder the 1P wire at (W25) on the D-AMP P.C.B..
Step 5 : Desolder the 1P wire at (W24A) on the D-AMP P.C.B..
Step 6 : Desolder the 1P wire at (W27) on the D-AMP P.C.B..
Step 7 : Desolder the 2P wire at (P603) on the D-AMP P.C.B..
Step 8 : Desolder the 5P wire at (P606A) on the D-AMP P.C.B..
Step 9 : Remove 2 screws.
Step 10 : Upset the D-AMP P.C.B. as arrow shown.
Step 11 : Detach the 22P FFC from connector (CN601) on the
D-AMP P.C.B..
Step 12 : Remove D-AMP P.C.B..

18
7.7. Disassembly of Volume P.C.B.
• Refer to “Disassembly of Rear Cabinet Block”
Step 1 : Remove the 2 Rotary Knobs.
Step 2 : Remove 2 screws.
Step 3 : Remove 1 screw.
Step 4 : Detach the 8P wire from connector (CN602) on the D-
AMP P.C.B..
Step 5 : Lift up the Main Chassis Block.
Step 6 : Remove 1 screw.
Step 7 : Release the Volume P.C.B..

19
Step 8 : Desolder the 5P wire at (P606B) on the Volume P.C.B..
Step 9 : Remove the Volume P.C.B.. 7.8. Disassembly of Main P.C.B.
• Refer to “Disassembly of Rear Cabinet Block”
• Refer to (Step 1) - (Step 5) “Disassembly of Volume P.C.B.”.
Step 1 : Detach the 22P FFC from connector (CN601) on the
D-AMP P.C.B..
Step 2 : Upset the Main Chassis Block.

20
Step 3 : Remove 2 screws.
Step 4 : Slightly lift up the Main P.C.B. as shown.
Step 5 : Release the catches and remove the Front Button from
the Main P.C.B..