Sherwood RX-4109B/B Скачать руководство пользователя страница 8

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Symptom

Power On Failure.

A) AC-Cord check.

1. FLT does not light up.

B) Power Trans ( Main/ST-BY ) check.

2. ST-BY LED does not light up.

C) Fuse's disconnection check.

FUSE (101 )

D) Connector's disconnection or disjuction.

Change or close insertion of the connector.

CP ( 503 )

E) Inferior Stany-By switch.

SW ( SW402 )

F) µ-COM I.C check.

1. µ-COM IC B+( 5 )V check.

IC301 Pin No. ( 12 )

Fuse Disconnection.

A) Inferior transformer.

(Power On)

B) AMP Drive Transistor out ( POWER TR )

Q ( 306L/R, 307L/R )

C) AMP Drive I.C out ( POWER TR )

Q ( 305L/R )

Key Disorder.

A) KEY's being pushed check.

SW ( 400 ~ 417 )

B) KEY data check.

IC301 Pin No.( 29, 30 )

C) µ-COM I.C inferior.

IC301

1. µ-COM IC B+( 5.5 )V check

IC301 Pin No. ( 12 )

Power Off in 2~3 sec.

A) Drive I.C out ( POWER TR )

Q ( 306L/R, 307L/R )

after Power On.

B) Drive Transistor out ( POWER TR )

Q ( 305L/R )

C) Protection circuit check.

1. Output DC check.

R ( 537, 532 )

2. µ-COM I.C protection terminal check.

I.C301 Pin No. ( 1 )

Bump Sound.

A) POWER MUTE transistor's out and inferior.

Q ( 315, 314L/R )

( During Input-Select Switch's change. )

µ-Com Front Mute Control PORT check.

IC301 Pin No. ( 15 )

Sounds from Speaker.

A) HEADPHONE JACK connection inferior.

JACK ( 301 )

when Headphone's connected .

B) DRIVER I.C inferior.

1. µ-Com H/P IN/OUT control "PORT"check.

IC400 Pin No. (3 )

Bass Control Failure.

A) TONE VOLUME IC check.

IC601

Treble Control Failure.

1. Signal IN/OUT terminal.

I.C Pin No. ( 7, 31 )

2. IC voltage check ( +10 )V

I.C Pin No. ( 35 )

3. IC control data check.

I.C Pin No. ( 1, 2, 36 )

AMP Sound dead.

A) Signal Mute TR's inferior.

Q ( 319, 314L/R )

1. L / R Channel dead.

B) Connector disconnection & disjunction.

FPC ( 101 )

2. LEFT Channel dead.

Changer or close insertion of the connector.

3. RIGHT Channel dead.

C) Speaker wire's disjuction.

Close insertion of the speaker wire.

D) Signal switching IC check.

I.C ( 601 )

1. IC voltage check ( +10 )V

I.C Pin No. ( 35 )

2. Switching IC control data check.

I.C Pin No. ( 1, 2, 36 )

3. Switching IC signal IN/OUT check.

I.C Pin No. ( 7, 31 )

Cause and Remedy

TROUBLESHOOTING

Ref NO.

Содержание RX-4109B/B

Страница 1: ......

Страница 2: ...BLOCK DIAGRAM Model RX 4109B B ...

Страница 3: ...WIRING DIAGRAM Model RX 4109B B PCB1 MAIN PCB2 FRONT PCB2 1 POWER S W PCB1 1 H P PCB2 2 SPK A B PCB1 4 PHONO TUNER ASS Y ...

Страница 4: ...ND REMOCON Avref P_CHECK FLT PLL CLK RESET PLL_DI FLMDO FLT PLL DA_OUT VREC FUNC_DA TREC FUNC_CLK REGC FLT_CE GND PLL_CE VDD FUNC_CE NC ST BY_RLY FLT B TUNED NC L_MUTE ST BY_LED CIRCUIT DESCRIPTION 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ...

Страница 5: ......

Страница 6: ...itance for internal operation 11 GND GND 12 VDD 5V power supply I 13 NC 14 Tuned Input for detecting TUNED condition Tuned signal in Low Tuned OK I 15 L MUTE Output for Front L R MUTE O 16 ST BY LED Output to drive standby LED O 17 NC open 18 FLT B ST_BY RLY Output for power relay FLT ON OFF Output for power relay FLT ON OFF O 19 LC75343_CE Output for chip enable of LC75343 IC O 20 PLL_CE Tuner PL...

Страница 7: ...Level 3 Adjust Point 98 1 60 75 ohm unbalance 40 FM 47 Load 98 1 60 MW 47kΩ kΩ Load 999 74 30 180 60 280 100 mV 25 6 dBu 1 3 1 4 No 9 5uH 1kHz S0160BL 25 12 0 5V Above the receiving Frequency M W F M 522 1620kHz 87 5 108 0MHz ITEMS SPECIFICATION 1 1 kHz dBu TEST CONDITION T P 1 5 Adjustment 1 2 SVR01 UNIT Specification No Non Adjust 98 1 TEST ITEMS MOD T L dBu 999 SVR02 Non Adjust 30 55 15 25 min ...

Страница 8: ...ion terminal check I C301 Pin No 1 Bump Sound A POWER MUTE transistor s out and inferior Q 315 314L R During Input Select Switch s change µ Com Front Mute Control PORT check IC301 Pin No 15 Sounds from Speaker A HEADPHONE JACK connection inferior JACK 301 when Headphone s connected B DRIVER I C inferior 1 µ Com H P IN OUT control PORT check IC400 Pin No 3 Bass Control Failure A TONE VOLUME IC chec...

Страница 9: ... Clock Pin 5 6 7 8 9 C STEREO adjustment inferior D FM MUTE adjustment inferior AM Failure A AM V T voltage inferior AM OSC BLACK COIL B TUNER PACK check PACK401 MAIN 1 TUNER PACK 12V check Pin 4 2 PLL control data check DATA CE Clock Pin 5 6 7 8 9 C TUNER B voltage inferior D AM OSC COIL inferior E u COM IC IC301 MAIN 1 u COM IC 5V check I C Pin No 12 2 u COM control DATA check I C Pin No 20 24 2...

Страница 10: ...RE FM 1 E605010070001S BATTERY AAA 2 G670001R50210S CABINET CHASSIS A SW ENCODER 1 G121123070010S B SW TACT 1 G180000270010S C WINDOW DISPLAY 1 K530121300010S D JACK D6 5 1 G402040161330S E STOPPER 1 4380040162010S F CORD ASS Y 1 L068125100020S G MODULE NJL34H380A 38KHz 1 E940343800010S H KTD1510 NPN 2 J503151000020S I 2SD947F NPN 2 J503947F00000S J KTB2510 PNP 2 J501251000010S K TER BOARD SCREW 8...

Страница 11: ...BACK 1 3207210866D00S 14 CABINET COVER TOP 1 3007041236060S 15 FOOT GOLD H STAMPING ASSY 2 4007040201040S 16 FOOT PL 2 4000040201010S 17 HOLDER FL PC HK 3250 1 432004078301AS 18 SPACER KNOB 6 4300040561010S 19 HEAT SINK POWER 1 2120200088020S 20 HEAT SINK REG TR 24X45 2 2120044298010S 21 FELT BLACK STRIP 2 2690040057010S SCREWS S1 SCREW 2S 3 8 B TYPE ZNW BH 33 B020030081B10S S2 SCREW 2S 3 8 ZnY WA...

Страница 12: ...EXPLODED VIEW Model RX 4109B B ...

Страница 13: ...100 pF 50V K 4 D010101167160S C304L R CERAMIC HIK DISC 220 pF 50V J 2 D00422106D05CS C305L R CERAMIC T C DISC 33 pF 500V J 2 D00033006D050S C306L R ELECT GE 85C 100 uF 500V M 2 D040101082090S C308L R CERAMIC HIK AXIAL 0 001 uF 50V K 2 D005102177530S C309L R ELECT GE 85C 47 uF 10V M 2 D040470087070S C310 CERAMIC CHIP HIK 0 022 uF 50V Z 1 D011223597160S C310L R ELECT GE 85C 10 uF 10V M 2 D0401000870...

Страница 14: ...7 92MM 1 L108353280360S CP501A CN WAFER 2 5MM 3P 1 L102526700300S CP502 CN WAFER 7 92MM 1 L108353280290S CP503 CN WAFER 7 92MM 1 L108202000220S DIODES D101 D103 1SS133T SWITCHING 3 K000013300520S D111 D112 KDS4148U SWITCHING CHIP 2 K005041480030S D114 KDS4148U SWITCHING CHIP 1 K005041480030S D301L R 1SS133T SWITCHING 2 K000013300520S D302 D305 1SS133T SWITCHING 4 K000013300520S D307 1SS133T SWITCH...

Страница 15: ...114R CHIP THICK 3 3 kohm 1 16W J 1 C20003326M160S R115L R CHIP THICK 220 ohm 1 16W J 2 C20002216M160S R116L R CHIP THICK 10 kohm 1 16W J 2 C20001036M160S R119L CHIP THICK 3 3 kohm 1 16W J 1 C20003326M160S R119R CARBON FILM 3 3 kohm 1 5W J 1 C00003326P520S R121L R CHIP THICK 7 5 kohm 1 16W J 2 C20007526M160S R201 CARBON FILM 4 7 kohm 1 5W J 1 C00004726P520S R202 CARBON FILM 3 3 kohm 1 5W J 1 C00003...

Страница 16: ...0001526P520S R365 CHIP THICK 100 kohm 1 16W J 1 C20001046M160S R366 CHIP THICK 1 kohm 1 16W J 1 C20001026M160S R367 CHIP THICK 10 kohm 1 16W J 1 C20001036M160S R368 CHIP THICK 3 3 kohm 1 16W J 1 C20003326M160S R369 CHIP THICK 100 kohm 1 16W J 1 C20001046M160S R370 CARBON FILM 4 7 kohm 1 5W J 1 C00004726P520S R452 R453 CHIP THICK 10 kohm 1 16W J 2 C20001036M160S R454 CHIP THICK 47 kohm 1 16W J 1 C2...

Страница 17: ...N WIRE 1P 3 L045084006040S J318A CN WIRE 1P 1 L045084006040S J319 CN WIRE 1P 1 L045084006040S J321 J323 CN WIRE 1P 3 L045084006040S J324A CN WIRE 1P 1 L045084006040S J325 J326 CN WIRE 1P 2 L045084006040S J333 J341 CN WIRE 1P 9 L045084006040S J348 J349 CN WIRE 1P 2 L045084006040S J351 J367 CN WIRE 1P 17 L045084006040S J370 CN WIRE 1P 1 L045084006040S J371 CHIP THICK 0 ohm 1 16W J 1 C20000006M160S J...

Страница 18: ...HICK 91 kohm 1 16W J 2 C20009136M160S R703L R CHIP THICK 680 ohm 1 16W J 2 C20006816M160S R704L R CHIP THICK 560 kohm 1 16W J 2 C20005646M160S R705L R CHIP THICK 43 kohm 1 16W J 2 C20004336M160S R706L R CHIP THICK 560 ohm 1 16W J 2 C20005616M160S R707L R CHIP THICK 100 kohm 1 16W J 2 C20001046M160S R708L R CARBON FILM 100 ohm 1 5W J 2 C00001016P520S PCB1 5 ASSEMBLY P C BOARD CNT CP901 CN WAFER 2 0...

Страница 19: ... R441 CHIP THICK 3 3 kohm 1 16W J 1 C20003326M160S R442 CHIP THICK 8 2 kohm 1 16W J 1 C20008226M160S R443 CHIP THICK 2 2 kohm 1 16W J 1 C20002226M160S R444 CHIP THICK 4 7 kohm 1 16W J 1 C20004726M160S R445 CHIP THICK 1 5 kohm 1 16W J 1 C20001526M160S R446 R447 CHIP THICK 4 7 kohm 1 16W J 2 C20004726M160S R448 CHIP THICK 1 kohm 1 16W J 1 C20001026M160S R449 CHIP THICK 3 3 kohm 1 16W J 1 C20003326M1...

Страница 20: ...K RLY B FL B S W FLT DATA PLL CE PLL_CLK TUNED R OUT GND PLL_DI PLL_DO 12V GND L OUT H P RLY RMC VOL DN KEY1 5V6 GND 1 EXCLK 2 FLMDO 3 VOD 4 VSS 5 RST 6 TXD 7 RXD 8 P31 9 P32 SPK RLY A ST BY LED SCHEMATIC DIAGRAMS 1 PCB1 MAIN PCB1 4 PHONO ...

Страница 21: ...H P RLY RMC VOL UP ST BY LED KEY1 5V6 GND SPK RLY A FL B S W VOL DN FLT DATA FLT CLK FLT CE KEY2 GND 30V SPK RLY B SCHEMATIC DIAGRAMS 2 Model RX 4109B B PCB2 2 SPK A B PCB2 1 POWER S W PCB2 FRONT ...

Страница 22: ...43 SCHEMATIC DIAGRAMS 3 TUNER ASS Y Model RX 4109B B ...

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