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KEH-P4830R,P4800R

7.2 DISASSEMBLY

Removing the Tuner Amp Unit(Fig.2)

Removing the two screws.

Removing the three screws.

Removing the screw.

Unbend the tabs at three locations

indicated by arrow until straight.

Remove the Tuner Amp Unit.

Removing the Case(not shown)

1. Remove the two screws.

2. Remove the Case.

Removing the Cassette Mechanism Module

(not shown)

1. Remove the four screws.

2.Disconnect the connector, and then removing the

Cassette Mechanism Module.

Removing the Panel Unit(Fig.1)

Remove the two screws.

Disengage the stopper at two locations

indicated and remove the Panel Unit.

Fig.1

Fig.2

Panel Unit

Tuner Amp Unit

Содержание KEH-P4800R

Страница 1: ...RDS TUNER KEH P4830R X1M EW Service Manual CONTENTS 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 2 3 SCHEMATIC DIAGRAM 8 4 PCB CONNECTION DIAGRAM 20 5 ELECTRICAL PARTS LIST 30 6 ADJUSTMENT 36 7 GENERAL INFORMATION 38 7 1 PARTS 38 7 1 1 IC 38 7 1 2 DISPLAY 42 7 2DISASSEMBLY 43 7 3BLOCK DIAGRAM 44 8 OPERATIONS AND SPECIFICATIONS 45 NOTE See the separate manual CX 631 CRT1640 for the casset...

Страница 2: ... and safely repair complex products such as those covered by this manual Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty If you are not qualified to perform the repair of this product properly and safely you should not risk trying to do so and refer the repair to a qualified service technician 2 EXPLODED VIEWS AND PARTS LIST 2 1...

Страница 3: ...8 15 Owner s Manual CRD2779 16 Installation Manual CRD2780 17 Passport CRY1013 18 Warranty Card CRY1087 19 Case Assy CXB3520 NOTE Parts marked by are generally unavailable because they are not in our Master Spare Parts List Screws adjacent to mark on the product are used for disassembly PACKING SECTION PARTS LIST Mark No Description Part No Mark No Description Part No Owner s Manual Installation M...

Страница 4: ...4 KEH P4830R P4800R 2 2 EXTERIOR ...

Страница 5: ...See Contrast table 2 37 Button 1 6 CAC5785 38 Button See Contrast table 2 39 Button See Contrast table 2 40 Button See Contrast table 2 41 Button Eject CAC5793 42 Button Display CAC5788 43 Button See Contrast table 2 44 Button See Contrast table 2 45 Spring CBH2103 46 Cover See Contrast table 2 47 Housing CNV5528 48 Keyboard Unit See Contrast table 2 49 LCD LCD1901 See Contrast table 2 50 Connecto...

Страница 6: ...EQ CAC6136 CAC6135 40 Button CAC5797 CAC5783 43 Button Cross CAC5799 CAC5786 44 Button A B CAC5801 CAC5787 46 Cover CNS5131 CNS5130 48 Keyboard Unit CWM6257 CWM6110 49 LCD LCD1901 CAW1542 CAW1506 56 Grille Unit CXB4063 CXB4062 66 Panel Unit CXB3022 CXB3021 67 Door CAT1835 CAT2028 6 KEH P4830R P4800R 2 3 CASSETTE MECHANISM MODULE 2 CONTRAST TABLE KEH P4830R X1M EW and KEH P4800R X1M EW have the sam...

Страница 7: ...ENC1417 27 Lever ENC1448 28 Arm ENC1488 29 Motor EXM1031 30 Belt ENT1027 31 Gear ENV1347 32 Collar ENV1508 33 Gear ENV1350 34 Flywheel ENV1500 35 Worm Gear ENV1439 36 Worm Wheel ENV1440 37 Gear ENR1028 38 Lever ENV1442 39 40 Gathering PCB ENX1037 41 Gathering PCB ENX1042 42 Switch S1 ESG1004 43 Motor Unit M2 EXA1485 44 Chassis Unit EXA1511 45 Pinch Holder ENV1485 46 Pinch Holder ENV1486 47 Reel Un...

Страница 8: ... A b A a A b A b A a Large size SCH diagram Guide page Detailed page 4R7 16 223 B 4R7 16 FM AM TUNER UNIT TAPE 9dBs FM 15 5dBs AM 26dBs For resistors and capacitors in the circuit diagrams their resistance values or capacitance values are expressed in codes Ex Resistors Code Practical value 123 12k ohms 103 10k ohms Capacitors Code Practical value 103 0 01uF 101 10 100uF 10V B D KEYBOARD U C DECK ...

Страница 9: ...NER AMP UNIT CD 2 2dBs FM 9 6dBs AM 0 9dBs TAPE 4dBs CD 10 3dBs FM 35 6dBs AM 25 1dBs TAPE 22 0dBs CD 36 3dBs SYSTEM CONTROLLER IP BUS DRIVER ELECTRONIC VOLUME POWER AMP RESET 8V REGULATER VDD SWITCH A A IP BUS CEK1136 TAPE 4 2dBs CN1901 UNIT 332 16 A A b ...

Страница 10: ...10 KEH P4830R P4800R A 1 2 3 4 B C D 1 2 3 4 4R7 16 4R7 16 FM AM TUNER UNIT FM 15 5dBs AM 26dBs IP B PM2007A A a A a A b ...

Страница 11: ... resistors and capacitors in the circuit diagrams their resistance values or capacitance values are expressed in codes Ex Resistors Code Practical value 123 12k ohms 103 10k ohms Capacitors Code Practical value 103 0 01uF 101 10 100uF 10V D CN1901 KEYBOARD UNIT C DECK UNIT A a A a A b ...

Страница 12: ...0R A 1 2 3 4 B C D 1 2 3 4 TUNER AMP UNIT FM 9 6dBs AM 0 9dBs TAPE 4dBs CD 10 3dBs FM 35 6dBs AM 25 1dBs TAPE 22 0dBs CD 36 3dBs IP BUS DRIVER ELECTRONIC VOLUME POWER AMP RESET A A CEK1136 TAPE 4 2dBs 332 16 A a A b A b ...

Страница 13: ...13 KEH P4830R P4800R 5 6 7 8 A B C D 5 6 7 8 4972A CD 2 2dBs M CONTROLLER 8V REGULATER VDD SWITCH IP BUS A b A a A b ...

Страница 14: ...14 KEH P4830R P4800R A 1 2 3 4 B C D 1 2 3 4 3 2 FM AM TUNER UNIT B 3 1 2 FM AM TUNER UN B ...

Страница 15: ...15 KEH P4830R P4800R 5 6 7 8 A B C D 5 6 7 8 B ER UNIT A ...

Страница 16: ...16 KEH P4830R P4800R A 1 2 3 4 B C D 1 2 3 4 CAW1542 P4830R X1M EW CAW1506 P4800R X1M EW 3 3 KEYBOARD UNIT C ...

Страница 17: ...17 KEH P4830R P4800R 5 6 7 8 A B C D 5 6 7 8 C KEYBOARD UNIT IL1901 1905 CEL1610 P4830R X1M EW CEL1605 P4800R X1M EW 40mA 14V EW EW EDIT TA PTY LOCAL BSM C CN601 A ...

Страница 18: ... 16 R283 0R0 R284 0R0 R282 0R0 C253 330P C254 330P C252 330P C251 330P R281 0R0 R255 220 C256 R01 R258 1K R301 18K R273 1K R274 1K R271 1K R272 1K R290 0R0 C403 R068 R403 82K C402 4700P C401 R33 R402 16K R401 4R7K R323 0R0 R257 1K C255 R01 C272 R1 C313 100P R386 0R0 R285 0R0 HD1 HEAD ASSY EXA1506 TEST TAPE NCT 150 400Hz 200nWb m RL RR FR FL Signal GND C302 R1 C302 R1 C301 R1 R304 R302 16K 16K R305...

Страница 19: ...tes the switch position 68 K 16K R351 1K R352 1K R353 1K R354 1K R373 0R0 R355 270K C352 3900P R362 180 C351 R22 C353 R01 C354 R01 R374 0R0 C356 R01 C355 R1 D352 1SS355 M1 MOTOR UNIT MAIN MOTOR EXA1490 S1 LOAD ESG1004 S2 ESG1004 70µs MODE SENSE EGN1 EGN1005 EGN2 EGN1006 FWD END SENSE EGN3 EGN1006 REV END SENSE M2 MOTOR UNIT SUB MOTOR EXA1485 Power GND E F ...

Страница 20: ...M 4 1 TUNER AMP UNIT NOTE FOR PCB DIAGRAMS 1 The parts mounted on this PCB include all necessary parts for several destination For further information for respective destinations be sure to check with the schematic diagram 2 Viewpoint of PCB diagrams Capacitor Connector P C Board Chip Part SIDE A SIDE B A ...

Страница 21: ...21 KEH P4830R P4800R 5 6 7 8 A B C D 5 6 7 8 A SIDE A B CN251 D ...

Страница 22: ...22 KEH P4830R P4800R A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...

Страница 23: ...23 KEH P4830R P4800R 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...

Страница 24: ...24 KEH P4830R P4800R A 1 2 3 4 B C D 1 2 3 4 4 2 FM AM TUNER UNIT B SIDE A B A FM AM TUNER UNIT ...

Страница 25: ...25 KEH P4830R P4800R 1 2 3 4 A B C D 1 2 3 4 B SIDE B B FM AM TUNER UNIT ...

Страница 26: ...KEH P4830R P4800R A 1 2 3 4 B C D 1 2 3 4 EDIT 4 3 KEYBOARD UNIT C C KEYBOARD UNIT 26 SIDE A ...

Страница 27: ...27 KEH P4830R P4800R 1 2 3 4 A B C D 1 2 3 4 C C KEYBOARD UNIT CN601 A SIDE B ...

Страница 28: ...28 KEH P4830R P4800R A 1 2 3 4 B C D 1 2 3 4 4 4 CASSETTE MECHANISM MODULE D D A HEAD ASSY M2 M1 DECK UNIT CN602 D DECK UNIT SIDE A SIDE B E ...

Страница 29: ...29 KEH P4830R P4800R 1 2 3 4 A B C D 1 2 3 4 Fig 20 F E E PCB UNIT REEL PCB SIDE A SIDE B E F LOAD SW S1 70µ SW S2 MODE SENSE EGN1 1 4 7 1 2 3 4 5 6 E PCB UNIT D CN253 F ...

Страница 30: ... 325 RS1 10S821J R 326 RS1 10S821J R 327 RS1 10S223J R 328 RS1 10S223J R 333 RS1 10S101J R 334 RS1 10S101J R 335 RS1 10S223J R 336 RS1 10S223J Unit Number CWM6246 KEH P4830R X1M EW CWM6245 KEH P4800R X1M EW Unit Name Tuner Amp Unit MISCELLANEOUS IC 301 IC PML003AM IC 302 IC TDA7384 IC 501 IC PM2007A IC 601 IC PD4972A IC 602 IC S 80734AN IC 701 IC PM4006B IC 702 IC CA0008AM IC 703 IC TA75S393F IC 9...

Страница 31: ... 615 RS1 10S392J R 616 RD1 4PU222J R 617 RD1 4PU223J R 618 RD1 4PU222J R 619 RD1 4PU222J R 621 RS1 10S222J R 622 RS1 10S222J R 623 RD1 4PU222J R 624 RS1 10S222J R 625 RD1 4PU222J R 626 RD1 4PU222J R 627 RD1 4PU222J R 628 RD1 4PU222J R 629 RD1 4PU681J R 630 RS1 10S681J R 631 RS1 10S681J R 632 RD1 4PU681J R 633 RD1 4PU681J R 634 RD1 4PU681J R 635 RD1 4PU222J R 636 RS1 10S472J R 637 RS1 10S103J R 638...

Страница 32: ... CKSQYB471K50 C 503 CKSQYB223K50 C 504 CKSQYB103K50 C 505 CKSQYB103K50 C 507 CEJA220M6R3 C 508 CKSQYB102K50 C 510 CCSQSL101J50 C 511 CKSQYB103K50 C 512 CKSQYB103K50 C 513 CKSQYB103K50 C 514 CCSQCH150J50 C 515 CKSQYB102K50 C 516 CCSQCH150J50 C 517 CKSQYB103K50 C 518 CKSQYB103K50 C 519 CEJA220M6R3 C 520 CKSQYB103K50 C 521 CEJA220M6R3 C 522 CKSQYB104K50 C 523 CKSQYB332K50 C 524 CKSQYB103K50 C 525 4 7...

Страница 33: ...J R 1910 RS1 10S473J R 1911 RS1 10S473J R 1912 RS1 10S473J R 1913 RS1 10S473J CAPACITORS C 1901 CEAL100M16 C 1902 CKSQYB104K16 C 1903 CEAL100M16 Unit Number EWM1021 Unit Name Deck Unit MISCELLANEOUS IC 251 IC CXA2559Q IC 351 IC PA2020A D 352 Diode 1SS355 RESISTORS R 255 RS1 16S221J R 256 RS1 16S221J R 257 RS1 16S102J R 258 RS1 16S102J R 271 RS1 16S102J R 272 RS1 16S102J R 273 RS1 16S102J R 274 RS1...

Страница 34: ... 8 RS1 16S332J R 9 RS1 16S473J R 10 RS1 16S223J R 11 RS1 16S124J R 13 RS1 16S563J R 15 RS1 16S271J R 16 RS1 16S104J R 17 RS1 16S332J R 18 RS1 16S332J R 31 RS1 16S470J R 32 RS1 16S822J R 33 RS1 16S822J R 34 RS1 16S331J R 35 RS1 16S331J R 51 RS1 16S271J R 52 RS1 16S560J R 55 RS1 16S102J R 56 RS1 16S823J R 61 RS1 16S392J R 62 RS1 16S393J R 101 RS1 16S272J R 102 RS1 16S682J R 103 RS1 16S333J R 104 RS1...

Страница 35: ...KSRYB102K50 C 170 CCSRCH100D50 C 201 CCSRCH471J50 C 202 CCSRCH100D50 C 203 CKSRYB332K50 C 204 CKSQYB473K16 C 205 CKSQYB473K16 C 206 CKSQYB104K16 C 207 CCSRCH560J50 C 209 CKSQYB104K16 C 211 CCSRCH101J50 C 212 CEJA470M6R3 C 213 CKSRYB103K25 C 216 CCSRCH101J50 C 217 CEJA1R5M50 C 219 CCSRCH471J50 C 220 CKSRYB103K25 C 230 CKSRYB103K25 C 231 CCSRCH330J50 C 232 CCSRCH150J50 C 233 CKSQYB104K16 C 234 CEJA3...

Страница 36: ...gulated Power Supply TUNER AMP UNIT 50 Ω 75Ω FM SSG Stereo Modulator 50Ω 37 5Ω AntennaPlug DummyAntenna DECK UNIT VR401 DC V Meter 2 SIDE B FM AM TUNER UNIT TOP VIEW T31 T51 C63 T51 Center Meter FM AM TUNER UNIT BOTTOM VIEW Pin1 Pin13 Pin14 Pin 19 Pin26 L2 L4 L5 VR154 TC1 DC V Meter 1 Q402 EMITTER 6 ADJUSTMENT Connection Diagram ...

Страница 37: ...sition TUN Volt 1 108 0 L5 DC V Meter 1 6V IF 2 98 1 M 60 100 98 1 T51 Center Meter 0 ANT Coil 3 98 1 M 5 98 1 L2 mV Meter 1 Maximum RF Coil 4 98 1 M 5 98 1 L4 mV Meter 1 Maximum RF 5 129 3 M 60 80 107 9 TC1 mV Meter 1 Minimum Trimmer 6 RF Coil and RF Trimmer shall be adjusted twice or more IFT 7 98 1 M 5 98 1 T31 mV Meter 1 Maximum STEREO MODE ARC 8 98 1 S 40 98 1 VR154 mV Meter 1 Separation 5dB ...

Страница 38: ...38 KEH P4830R P4800R 7 GENERAL INFORMATION 7 1 PARTS 7 1 1 IC CXA2559Q ...

Страница 39: ... DRSENS I Door open close sense input 28 DRSYS O C Door system select output 29 FM O C FM power control output 30 AM O C AM power control output 31 CM O C Cassette mechanism capstan motor control output 32 NC Not used 33 VSS GND 34 SC2 O C Cassette mechanism sub motor control output 35 SC1 O C Cassette mechanism sub motor control output 36 MSIN I Cassette mechanism MS sense input 37 RIMUTE O N RI ...

Страница 40: ... input 67 NC Not used 68 VDD VDD 69 X2 O Oscillator output 70 X1 I Oscillator input 71 IC Connect to GND 72 XT2 Sub Clock terminal 73 TESTIN I Test program mode input 74 AVDD A D converter analog power supply VDD 75 AVREF0 I A D converter standard voltage input 76 SL I Signal level input 77 CL I Synchronizing signal input of display data latch 78 NL I Noise level input 79 MODELIN I Model select in...

Страница 41: ... 28 KS6 5 O Key strobe output 29 55 SEG39 13 O LLCD segment output 56 VCC Power supply 57 64 SEG12 5 O LCD segment output 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Vref IN1_L IN2_L IN3_L IN4 _L AGND Loud out_L SVin_L Front out_L Rear out_L FIE_L DGND IN4 _L CLK VCC IN1_R IN2_R IN3_R IN4 _R AGND Loud out_R SVin_R Front out_R Rear out_R FIE_R STB IN4 _R DATA Isolator...

Страница 42: ...42 KEH P4830R P4800R 7 1 2 DISPLAY CAW1542 P4830R CAW1506 P4800R COMMON SEGMENT ...

Страница 43: ... Remove the Tuner Amp Unit Removing the Case not shown 1 Remove the two screws 2 Remove the Case Removing the Cassette Mechanism Module not shown 1 Remove the four screws 2 Disconnect the connector and then removing the Cassette Mechanism Module Removing the Panel Unit Fig 1 Remove the two screws Disengage the stopper at two locations indicated and remove the Panel Unit Fig 1 Fig 2 Panel Unit Tune...

Страница 44: ...44 KEH P4830R P4800R 7 3 BLOCK DIAGRAM B A D F E C ...

Страница 45: ...ute lead free of any connections 20 Front 21 Rear 4 Multi CD player sold separately 15 Connecting cords with RCA pin plugs sold separately 14 To system control terminal of the power amp or Auto antenna relay control terminal Max 300 mA 12 V DC 17 Power amp sold separately 2 Rear output 16 System remote control 21 Rear 21 Rear 30 With a 2 speaker system do not connect anything to the speaker leads ...

Страница 46: ...ote Loading a cassette in this product 1 Select the desired source e g Tuner Each press of the SOURCE OFF button selects the desired source in the following order Tuner Tape Multi CD player AUX Note In the following cases the sound source will not change When a product is not connected to this product When no tape is set in this product When no magazine is set in the Multi CD player When the AUX e...

Страница 47: ... FM3 and 6 MW LW stations can be stored in memory You can also use the 5 or buttons to recall broadcast stations memorized in buttons 1 through 6 Preset Number Indicator Band F I FM1 F II FM2 F III FM3 MW LW Basic Operation of Cassette Player Direction Change Direction Indicator Eject Note The Tape function can be turned ON OFF with the cassette tape remaining in this product Fast Forward Rewind a...

Страница 48: ...0 Disc type Multi CD Player information on all the discs in the magazine is read If you start playing a disc on a 50 Disc type Multi CD Player before reading of information on all discs has been completed reading of information stops part way through If the multi CD player cannot operate properly an error message such as ERROR 14 is displayed Refer to the multi CD player owner s manual If there ar...

Страница 49: ...e speed 4 76cm sec 0 14cm sec 0 05cm sec Fast forward rewinding time Approx 100 sec for C 60 Wow flutter 0 09 WRMS Frequency response Metal 30 16 000 Hz 3 dB Stereo separation 45 dB Signal to noise ratio 61 dB IEC A network FM tuner Frequency range 87 5 108 MHz Usable sensitivity 11 dBf 1 0 µV 75 Ω mono S N 30 dB 50 dB quieting sensitivity 16 dBf 1 7 µV 75 Ω mono Signal to noise ratio 70 dB IEC A ...

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