Panasonic RC-Q500 Service Manual Download Page 1

Order No. MD0005083C2

FM-LW Digital Clock Radio

RC-Q500

Colour

(S)..........Silver Type

EP....East Europe

SPECIFICATIONS

 

 RADIO

Frequency Range

FM

65-108 MHz

LW

148.5-285 kHz

Intermediate Frequency

LW

459 kHz

FM

10.7 MHz

Sensitivity

FM

15 dB/50 mW

LW

56 dB/m/50 mW

 

 GENERAL

Power requirement

AC

230 - 240 V, 50 Hz

Power consumption

5 W

Memory back-up battery for 

clock

9 V (6 F22/6LR61, S-006P)

Power output

300 mW (RMS...Max.)

Speakers

8 cm (16 

 )

Dimensions (W x H x D)

231 x 60 x 153 mm

Weight

689 g without batteries

Notes: 

1. Weight and dimensions shown are approximate.

2. Design and specifications are subject to change without notice.

Summary of Contents for RC-Q500

Page 1: ...MHz Sensitivity FM 15 dB 50 mW LW 56 dB m 50 mW GENERAL Power requirement AC 230 240 V 50 Hz Power consumption 5 W Memory back up battery for clock 9 V 6 F22 6LR61 S 006P Power output 300 mW RMS Max Speakers 8 cm 16 Dimensions W x H x D 231 x 60 x 153 mm Weight 689 g without batteries Notes 1 Weight and dimensions shown are approximate 2 Design and specifications are subject to change without noti...

Page 2: ... This section describes the procedures for checking the operation of the major printed circuit boards and replacing the main components 2 For assembly after operation checks or replacement reverse the respective procedures Special reassembly procedures are described only when required 3 Select items from the following index when checks or replacement are requirements Checking Procedure for each ma...

Page 3: ...Step 1 Remove 6 screws Step 2 Remove the volume knob Step 3 Remove the top cabinet in the direction of arrow Step 4 Release the 2 claws in the direction of arrow ...

Page 4: ...by pressing down the connector Note Please switch AL1 and AL2 to the left side when assemble back the set 1 2 How to set a dial pointer Step 1 Install the dial pointer and align the pointer to the 0 point as shown above ...

Page 5: ... 5 Output of signal generator should be no higher than necessary to obtain an output reading AM IF ALIGNMENT Signal Generator or Sweep Generator Radio Dial Setting Indicator Electronic Voltmeter or oscilloscope Adjustment Shown in Fig 1 Remarks Connections Frequency Fashion a loop of several turns of wire and radiate signal into loop of receiver 455 kHz 30 Mod at 400 Hz Point of non interference o...

Page 6: ...t maximum output by L5 moving along ferrite 297 kHz CT2 LW ANT Trimmer Adjust maximum output 1 Fix antenna coil with wax after completing alignment FM IF ALIGNMENT Signal Generator or Sweep Generator Radio Dial Setting Indicator Electronic Voltmeter or oscilloscope Adjustment Shown in Fig 1 Remarks Connections Frequency Connect to test point TP3 through ceramic capacitor Negative side to test poin...

Page 7: ... present proper tuning is the outer frequency BATTERY BACK UP CIRCUIT ADJUSTMENT NOTE Disconnect AC power cord DC Power Supply Frequency Counter Adjustment Point Remarks Connections Voltage Side TP5 Side TP4 9 V Side TP9 Side TP10 VR1 Adjust VR3 for 2400 15 Hz on frequency counter reading 3 4 5 3 Connect 1 pF capacitor to the test point TP9 4 Amplify its output signal by using AF Amp 5 Measure the...

Page 8: ...3 Type Illustration of IC s Transistors and Diodes 4 Wiring Connection Diagram ...

Page 9: ...5 Terminal Functions of ICs IC1 LM8652 Clock LSI ...

Page 10: ...ge control circuit Q1 19 20 19 ALARM1 OUTPUT 20 ALARM2 OUTPUT O Outputs an alarm signal H level when alarm time matches the current time When this pin is momentarily grounded VDD the alarm output stops 21 ALARM DISPLAY I When a high signal is applied to this pin the contents of alarm 2 is displayed and the setting input is enabled When a low signal is applied the above applies instead to alarm 1 2...

Page 11: ...ep mode By turning on S2 the input is VDD low signal and the mode is now switch to the doze mode 25 50 60 Hz INPUT I Input terminal for noise filter circuit 26 MODE I Terminal to input mode selection VDD 12 hour 60 HzOPEN 12 hour 50 Hz VSS 24 hour 50 Hz 27 TIME SET I Input terminal for time setting and dinner adjustment modes VSS Dimmer Timer lock OPEN Bright Time lock VDD bright Time set 28 VDD G...

Page 12: ...scilloscope on the basis of chassis Accordingly there may arise some error in voltage values and waveforms depending upon the internal impedance of the tester or the measuring unit FM No Mark Clock Importance safety notice Components identified by mark have special characteristics important for safety Furthermore special parts which have purposes of fire retardant resistor high quality sound capac...

Page 13: ...columns specify the areas or colour Refer to the cover page for area or colour Parts without these indications can be used for all areas Capacitor values are in microfarads F unless specified otherwise P Pico farads pF F Farads Resistance value are in ohms unless specified otherwise 1K 1 000 OHM The marking RTL indicates that the Retention Time is limited for this item After the discontinuation of...

Page 14: ...ian French Cz Czech Da Danish Du Dutch En English Fr French Ge German It Italian Ko Korean Po Polish Ru Russian Sp Spanish Sw Swedish Co Traditional Chinese Cn Simplified Chinese 8 1 Cabinet 8 1 1 Cabinet Parts Location ...

Page 15: ...W M 14 XYN26 C8 SCREW M 15 4HCR21532 LED DISPLAY M 8 2 Electrical Parts List Ref No Part No Part Name Description Remarks P C B REPT0006A MAIN P C B M INTEGRATED CIRCUITS IC1 LM8562 IC CLOCK LSI M IC50 TA8164P IC TUNER M IC51 TA7368P IC POWER AMP M IC100 TC74HC4060AP IC COUNTER OSC M TRANSISTORS Q1 2SD734FAA TRANSISTOR M Q2 2SC4641TAA TRANSISTOR M Q4 2SD734FAA TRANSISTOR M Q101 2SC4641TAA TRANSIST...

Page 16: ... SW5 EVQ21405R SW RADIO ON M SW6 EVQ21405R SW ALARM 1 DISP ADJ M SW7 EVQ21405R SW ALARM 2 DISP ADJ M SW8 EVQ21405R SW TIME SET FWD M SW9 EVQ21405R SW TIME SET REV M SW10 EVQ21405R SW TIME SET FAST M SW11 RSS2B035 B SW ALARM 1 M SW12 RSS2B035 B SW ALARM 2 M SW50 RSS2B019 B SW BAND M CONNECTOR CP1 RJS2T5ZA CONNECTOR M COILS TRANSFORMERS L51 RLQY30S1W F FM COIL M L53 RLD4Y54W F FM OSC COIL M L54 RL02...

Page 17: ...S2TJ560T 56 1 4W M R20 ERDS2TJ334T 330K 1 4W M R50 ERDS2TJ270T 27 1 4W M R51 ERDS2TJ392T 3 9K 1 4W M R52 ERDS2TJ563T 56K 1 4W M R53 ERDS2TJ223T 22K 1 4W M R54 ERDS2TJ102T 1K 1 4W M R55 ERDS2TJ104T 100K 1 4W M R56 ERDS2TJ151T 150 1 4W M R57 ERDS2TJ101T 100 1 4W M R58 ERDS2TJ104T 100K 1 4W M R59 ERDS2TJ820T 82 1 4W M R60 ERDS2TJ102T 1K 1 4W M R101 ERDS2TJ102T 1K 1 4W M R102 ERDS2TJ222T 2 2K 1 4W M R...

Page 18: ...0DC5 5 50V M C54 ECCR1H080DC5 8 50V M C55 ECCR1H040CC5 4 50V M C56 ECFR1C473MR 0 047 16V M C57 ECBT1C122MR5 1200P 16V M C58 ECBT1H180JC5 18 50V M C59 ECBT1C472MR5 4700P 16V M C60 ECKR1H151KB5 150 50V M C61 ECEA1CU330B 33 16V M C62 ECBT1C122MR5 1200P 16V M C63 ECEA0JU101B 100 6 3V M C64 ECBT1C103NS5 0 01 16V M C65 ECEA1HU0R1B 0 1 50V M C66 ECBT1H102KB5 1000P 50V M C67 ECEA1AU470B 47 10V M C68 ECEA1...

Page 19: ...0P 16V M 8 3 Packing Materials Accessories Parts List Ref No Part No Part Name Description Remarks PACKING MATERIALS P1 RPK1385 GIFT BOX M P2 RPHW0001 PROTECTIVE PAD M P3 XZB30X25A04 MIRAMAT M ACCESSORIES A1 RJA23YB U AC CORD M A2 RQTT0249 2E O I BOOK M 8 4 Packaging ...

Page 20: ...LM8562 2SD734FAA 2SC4641TAA TA8164P TC74HC4060AP TA7368P RVD1SS133TA RVD1SR35TR RVDMTZ10BTA RVDMTZ5R1BTA Ca A Cathode Anode Ca A Cathode Anode SVC251SPA AC RVDTZ6R8BTA ...

Page 21: ...ï Ýëê Ýêë Îëí Îïé Îëï Ýêì Ýëç Îëë Îëð Îëè Ýëè Ýèï Ýëé Ýèí ÖÐïí Îêð Ýêï Ýêî Ýèì Ýêí Ôëï Îëé Ýêé Ýêç Ýêè Îëê Ýêê Ýéð Ýïé Îí ÍÉé ÍÉê ÍÉë ÍÉì ßÔßÎÓî ßÔßÎÓï ÑÒ ÑÚÚ ÍÉí ÍÔÛÛÐ Îîð Ýîð Îïè Îïë Üè Ýïî Îç Ýïï Ýïð ÖÐïð Ýïì Ýïè Ýïç Üïï Îïê Ýïë Ýîï Îïç Üç Ýì ÖÐê Ýïê ÖÐë Ôì Ôí Ýí Üí Îïðï Üïðï Ýïðï Îïðë Üïð ÖÐç Ïïðî Ýïðé Îïðì Îïïî Îïðî Îïðí Ýïðê Ýïðî Ïïðí Ýç Üë ÖÐè ÍÉî ÜÑÒÛ Îè Ýê Üì Ýë Îî Üî Ýî ÖÐé Üï Ýï Îì Îë Ü...

Page 22: ... B C81 390P C82 1000P C85 220P C65 50V0 1 VR50 EVJF8AF20A14 R54 1K C17 1000P C66 1000P R17 3 9M C67 10V47 C68 10V47 R18 22K C18 0 01 D11 RVD1SS133TA C19 0 01 R19 56 C69 6 3V220 C70 6 3V220 CP1 RJS2T5ZA SPEAKER BATT 9V C16 0 01 D9 RVD1SS133TA C21 1000P D10 RVDMTZ6R8BTA C15 10V47 R16 18K C14 0 022 R15 2 2K SW11 AL1 RSS2B035 B SW12 AL2 RSS2B035 B Q2 2SC4641TAA Q2 Q1 2SD734FAA Q1 C20 1500P R20 330K D8...

Page 23: ...Printed in Singapore P000500200 PRT H K E J ...

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