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46

KEH-P525,P5700,P5750

7.2 DISASSEMBLY

Fig. 24

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Removing the Tuner Amp Unit(Fig.24)

1. Removing the two screws A, three screws B and

screw C.

2. Unbend the tabs at four locations indicated by arrow

until straight.

3. Remove the Tuner Amp Unit.

-

Removing the Case(not shown)

1. Remove the three 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 Detach Grille Assy(Fig.23)

1. Push the detach button.

2. Remove the Detach Grille Assy.

-

Removing the Panel Unit(Fig.23)

1. Disengage the stopper at four locations indicated by

white-arrows and then remove the Panel.

2. Disengage the stopper at two locations indicated by

black-arrows.

3. Remove the Panel Unit.

Fig. 23

Summary of Contents for KEH-P525

Page 1: ...tte mechanism description The cassette mechanism assy employed in this model is one of 2L series Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation Dolby and the double D symbol are trademarks of Dolby Laboratories Licensing Corporation This service manual does not describe the CD test mode For the operations in the CD test mode refer to the CD player s ...

Page 2: ...s 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 WARNING Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant whic...

Page 3: ... 16 Screw CBA1304 17 Polyethylene Bag CEG 127 18 Screw x4 CRZ50P090FMC 19 Screw x4 TRZ50P080FMC 20 Polyethylene Bag CEG 158 21 Handle x2 CNC5395 22 Bush CNV3930 23 Polyethylene Bag CEG1173 24 Battery CEX1006 25 Carton CHG3468 26 Contain Box CHL3468 27 Protector CHP2021 28 Protector CHP2022 29 Inner Box CHW1548 30 Owner s Manual CRD2581 31 Installation Manual CRD2582 32 Warranty Card CRY1070 33 Cas...

Page 4: ...4 KEH P525 P5700 P5750 5 10 16 4 15 14 13 12 9 6 8 11 7 21 22 3 2 1 20 17 18 19 23 KEH P5700 X1M UC P5750 X1M ES Fig 2 ...

Page 5: ...g CEG1173 CEG 162 13 Carton CHG3467 CHG3466 14 Contain Box CHL3467 CHL3466 15 Protector CHP2021 CHP2021 16 Protector CHP2022 CHP2022 17 Owner s Manual CRD2583 CRD2593 18 Installation Manual CRD2584 CRD2595 19 Card ARY1048 Not used 20 Owner s Manual Not used CRD2594 21 Remote Control Unit CXB1146 CXB1146 22 Battery CEX1030 CEX1030 23 Case Assy CXB1063 CXB1063 PACKING SECTION PARTS LIST KEH P5700 X1...

Page 6: ...6 KEH P525 P5700 P5750 Fig 3 2 2 EXTERIOR ...

Page 7: ...ver See Contrast table 2 44 Detach Grille Assy See Contrast table 2 45 Screw BPZ20P100FZK 46 Button CAC5430 47 Button CAC5432 48 Button SOURCE CAC5433 49 Button CAC5435 50 Button BAND F A CAC5437 51 Button 1 2 3 4 5 6 CAC5439 52 Button D CAC5441 53 Button LD CLK P CAC5542 54 Spring CBH2103 55 Spacer CNM5572 56 Sheet CNM5897 57 Cover CNS4775 58 Lighting Conductor CNV5195 59 Keyboard Unit CWM5673 60...

Page 8: ...t used Not used 43 Battery Cover CNS4406 Not used Not used 44 Detach Grille Assy CXB2306 CXB2445 CXB2441 69 Grille Unit CXB2487 CXB2486 CXB2488 79 Panel Unit CXB2352 CXB2367 CXB2367 85 IC IC301 TDA7386 TDA7384 TDA7384 87 Remote Control Unit Not used CXB1146 CXB1146 88 Cover Not used CNS4139 CNS4139 89 Cord Assy CN603 Not used Not used CDE5327 2 CONTRAST TABLE KEH P525 X1M UC KEH P5700 X1M UC and K...

Page 9: ...9 KEH P525 P5700 P5750 Fig 4 2 3 CASSETTE MECHANISM MODULE ...

Page 10: ...Belt ENT1027 31 Gear ENV1347 32 Collar ENV1508 33 Gear ENV1350 34 Flywheel ENV1529 35 Worm Gear ENV1439 36 Worm Wheel ENV1440 37 Gear ENR1028 38 Lever ENV1442 39 Arm ENV1525 40 Gathering P C Board ENX1037 41 Gathering P C Board ENX1042 42 Switch S1 S2 ESG1004 43 Motor Unit M2 EXA1485 44 Chassis Unit EXA1511 45 Pinch Holder ENV1485 46 Pinch Holder ENV1486 47 Reel Unit EXA1543 48 Head Base Unit EXA1...

Page 11: ...11 KEH P525 P5700 P5750 ...

Page 12: ...MATIC DIAGRAM 3 1 OVERALL CONNECTION DIAGRAM GUIDE PAGE Note When ordering service parts be sure to refer to EXPLODED VIEWS AND PARTS LIST or ELECTRICAL PARTS LIST A a A b A a A b A b A a Large size SCH diagram Guide page Detailed page A C A a A B C D E F ...

Page 13: ...13 KEH P525 P5700 P5750 5 6 7 8 A B C D 5 6 7 8 A b A Fig 5 POWER AMP ...

Page 14: ...14 KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 A B A a A a A b ...

Page 15: ...15 KEH P525 P5700 P5750 5 6 7 8 A B C D 5 6 7 8 C D E F Fig 6 A a A a A b C ...

Page 16: ...16 KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 POWER AMP A a A b A b ...

Page 17: ...17 KEH P525 P5700 P5750 5 6 7 8 A B C D 5 6 7 8 Fig 7 A b A a A b ...

Page 18: ...18 KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 KEH P525 X1M UC P5700 X1M UC KEH P5750 X1M ES 3 2 FM AM TUNER UNIT B A B FM AM TUNER UNIT ...

Page 19: ...19 KEH P525 P5700 P5750 5 6 7 8 A B C D 5 6 7 8 B Fig 8 ...

Page 20: ...20 KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 3 3 CASSETTE MECHANISM MODULE A D D ...

Page 21: ...21 KEH P525 P5700 P5750 5 6 7 8 A B C D 5 6 7 8 E F Fig 9 D E F ...

Page 22: ...d 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 4 PCB CONNECTION DIAGRAM 4 1 TUNER AMP UNIT A A C Capacitor Connector P C Board Chip Part SIDE A SIDE B TUNER AMP UNIT ...

Page 23: ...23 KEH P525 P5700 P5750 5 6 7 8 A B C D 5 6 7 8 B D CN251 CN901 SY Fig 10 SIDE A D B A ...

Page 24: ...24 KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...

Page 25: ...25 KEH P525 P5700 P5750 5 6 7 8 A B C D 5 6 7 8 Fig 11 A SIDE B ...

Page 26: ... KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 4 2 KEYBOARD UNIT Fig 12 AUDIO SOURCE FF REW FUNCTION LOUD CLOCK PGM EJECT VOL DOWN VOL UP BAND 1 2 3 4 5 6 DISPLAY DISC UP DISC DOWN C SIDE A C KEYBOARD UNIT ...

Page 27: ...27 KEH P525 P5700 P5750 1 2 3 4 A B C D 1 2 3 4 Fig 13 C A CN601 SIDE B A CN601 C KEYBOARD UNIT ...

Page 28: ...28 KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 4 3 FM AM TUNER UNIT Fig 14 B B SIDE A FM AM TUNER UNIT A ...

Page 29: ...29 KEH P525 P5700 P5750 1 2 3 4 A B C D 1 2 3 4 Fig 15 B B SIDE B FM AM TUNER UNIT ...

Page 30: ...0 KEH P525 P5700 P5750 A 1 2 3 4 B C D 1 2 3 4 IC Q ADJ VR302 IC351 IC251 Q351 Q352 VR301 HEAD ASSY E M1 M2 4 4 CASSETTE MECHANISM MODULE D Fig 16 D A CN602 A E SIDE B SIDE A DECK UNIT D DECK UNIT Fig 17 ...

Page 31: ...31 KEH P525 P5700 P5750 1 2 3 4 A B C D 1 2 3 4 E E F SIDE B SIDE A PCB UNIT PCB UNIT REEL PCB D F Fig 18 Fig 19 Fig 20 E F ...

Page 32: ...38 RS1 16S104J R 239 RS1 16S104J R 240 RS1 16S332J R 241 RS1 16S202J R 243 RS1 16S183J R 244 RS1 16S392J Unit Number CWE1467 KEH P525 X1M UC P5700 X1M UC Unit Number CWE1486 KEH P5750 X1M ES Unit Name FM AM Tuner Unit MISCELLANEOUS IC 1 IC PA4023B IC 2 IC PA4024A Q 1 Transistor 2SC2412KLN Q 2 Transistor DTC124EU Q 3 FET 3SK263 Q 31 Transistor 2SC2412KLN Q 201 FET 2SK932 Q 202 Transistor 2SC2412KLN...

Page 33: ...SRCH101J50 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 CEJA330M10 C 235 CKSRYB332K50 C 236 CKSQYB473K16 C 237 CCSRCH120J50 C 239 CKSRYB472K50 C 240 CEJAR47M50 C 241 CKSQYB104K16 C 242 CEJAR47M50 C 243 CEJAR33M50 C 244 CKSQYB473K16 C 245 CKSRYB333K16 C...

Page 34: ...8 RS1 8S102J R 221 RS1 10S821J R 222 RS1 10S821J R 223 RS1 10S473J R 224 RS1 10S473J R 225 RS1 10S473J R 226 RS1 10S473J R 227 RS1 10S0R0J R 229 RS1 10S392J R 230 RS1 10S392J R 301 RD1 4PU103J R 302 RS1 10S221J R 303 RS1 10S153J R 304 RS1 10S103J R 305 RS1 10S152J R 306 RS1 10S101J R 307 RS1 8S562J R 308 RS1 8S223J R 401 RS1 10S162J R 402 RS1 10S162J R 403 RS1 10S102J R 404 RS1 10S222J R 405 RS1 1...

Page 35: ...0S102J R 960 RS1 8S103J R 961 RS1 8S1R0J R 962 RS1 10S103J R 963 RS1 10S223J R 964 RS1 10S152J R 967 RS1 10S473J R 968 RS1 10S102J R 973 RS1 10S0R0J CAPACITORS C 201 CEJA2R2M50 C 202 CEJA2R2M50 C 203 CEJA1R0M50 C 204 CEJA1R0M50 C 205 CEJA4R7M35 C 206 CEJA4R7M35 C 207 CEJA100M16 C 208 CEJA100M16 C 209 CKSQYB822K50 C 210 CKSQYB822K50 C 211 CEJA1R0M50 C 212 CEJA1R0M50 C 213 CKSQYB183K25 C 214 CKSQYB1...

Page 36: ... 958 CEAS101M10 C 960 CKSQYB472K50 Circuit Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No Part No Symbol and Description KEH P525 X1M UC KEH P5700 X1M UC KEH P5750 X1M ES FM AM Tuner Unit CWE1467 CWE1467 CWE1486 IC 301 IC TDA7386 TDA7384 TDA7384 IC 602 IC TPD1018F TPD1018F Not used D 612 613 Diode 1SR139 400 1SR139 400 Not used R 406 Not used Not used RD1 4PU182J R 407 RS1...

Page 37: ...2K50 C 353 CKSQYB103K50 C 354 CKSQYB103K50 C 355 CKSYB104K50 C 356 CKSQYB103K50 C 401 CKSQYB334K16 C 402 CKSQYB472K50 C 403 CKSQYB683K16 Unit Number CWM5673 Unit Name Keyboard Unit MISCELLANEOUS IC 901 IC PD6247A IC 902 IC RS 140 Q 901 Transistor 2SC2412K D 901 Chip Diode MA151WK D 902 Diode MA151WA D 903 LED NSPWF50SB D 904 LED NSPWF50SB D 905 LED NSPWF50SB D 906 LED CL170PGCD D 907 LED CL170PGCD...

Page 38: ...100M6R3 C 904 CKSQYB103K25 C 905 CKSQYB103K25 C 906 CKSQYB103K25 C 907 CKSQYF104Z50 C 908 CKSQYF104Z50 C 909 CKSQYF104Z50 Unit Number Unit Name PCB Unit S 1 Switch Load ESG1004 S 2 Switch 70µS ESG1004 EGN 1 Photo Interrupter EGN1005 Unit Number Unit Name Reel PCB EGN 2 Photo Interrupter EGN1006 EGN 3 Photo Interrupter EGN1006 Miscellaneous Parts List M 1 Motor Unit Main EXA1544 M 2 Motor Unit Sub ...

Page 39: ...y TUNER AMP UNIT DC V Meter 1 Center Meter Pin 19 FM AM TUNER UNIT BOTTOM VIEW C63 FM AM TUNER UNIT TOP VIEW L2 L5 T51 T31 Pin1 Pin13 Pin14 Pin26 L4 T51 VR154 50Ω 75Ω FM SSG Stereo Modulator 50Ω 37 5Ω Antenna D u m m y A n t e n n a VR302 mV Meter 2 VR301 L CH R CH Pin2 Pin3 CN251 DECK UNIT DECK UNIT BOTTOM VIEW Fig 21 6 ADJUSTMENT Connection Diagram ...

Page 40: ...evel dBf Frequency MHz Point Switch Position TUN Volt 1 107 9 L5 DC V Meter 1 6V IF 2 98 1 M 60 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 IFT 5 98 1 M 5 98 1 T31 mV Meter 1 Maximum STEREO MODE ARC 6 98 1 S 40 98 1 VR154 mV Meter 1 Separation 5dB STEREO MODE FM ADJUSTMENT KEH P5750 X1M ES FM SSG Displayed Adjustment Adjustme...

Page 41: ...41 KEH P525 P5700 P5750 7 GENERAL INFORMATION 7 1 PARTS 7 1 1 IC TDA7384 TDA7386 PM2006A ...

Page 42: ...n close sense input 28 ILPW O C Illumination power 29 FM O C FM power control output 30 AM O C AM power control output 31 NR O C NR output 32 CM O C Cassette mechanism capstan motor control output 33 VSS GND 34 SC2 O C Cassette mechanism sub motor control output 35 SC1 O C Cassette mechanism sub motor control output 36 MS I Cassette mechanism MS sense input 37 NC Not used 38 mtl I Cassette mechani...

Page 43: ...No Pin Name I O Format Function and Operation 66 bsens I Back up power sense input 67 CLKIN I Clock input 68 VDD Power supply 69 X2 Oscillator output 70 X1 Oscillator input 71 IC GND 72 NC Not used 73 TESTIN I Test program mode input 74 AVDD I A D converter analogue power 75 AVREF0 I A D converter standard voltage input 76 SL I Signal level input 77 CL I Synchronizing signal input of display data ...

Page 44: ...4 rst I System reset 5 6 MODE1 0 GND 7 dim O Dimmer select output 8 SO O UART output 9 SI I UART input 10 REMIN I Remote control reception 11 RVER Not used 12 NC Not used 13 16 KDT4 1 I Key data input 17 22 KST6 1 O Key strobe output 23 VCC 5V 24 73 SEG49 0 O LCD segment output 74 77 COM3 0 O Common driver output 78 80 V3 1 LCD bias power supply 20 21 40 41 60 61 80 1 PD6247A ...

Page 45: ...45 KEH P525 P5700 P5750 7 1 2 DISPLAY CAW1477 Fig 22 COMMON SEGMENT ...

Page 46: ...ws 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 Detach Grille Assy Fig 23 1 Push the detach button 2 Remove the Detach Grille Assy Removing the Panel Unit Fig 23 1 Disengage the stopper at four locations indicated by white arrows and then remove the Panel 2 Disenga...

Page 47: ...47 KEH P525 P5700 P5750 7 3 BLOCK DIAGRAM KEH P525 X1M UC Fig 25 D C B E A F ...

Page 48: ...the power amp or Auto antenna relay control termi nal Max 300 mA 12 V DC Power amp sold separately Rear Rear Use this for connections when you have the sepa rately available amplifier To vehicle metal body Rear Rear Left speaker Right speaker Front Front Black ground Red Orange Green Green black Gray Gray black Green red Black green Gray red Black gray With a 2 speaker system connect to the 2 spea...

Page 49: ...ape OFF CD button CD player one disc only Multi CD player OFF Note In the following cases the sound source will not change No Multi CD player is connected to this product When M CD display is OFF Refer to page 38 No CD player is connected to this product No cassette tape is set in this product No magazine is set in the Multi CD player No disc is set in the CD player AUX external input is set to OF...

Page 50: ...ote Fast forward Rewind and Music Search can be canceled by pressing the button Cassette Loading Slot Note METAL appears on the display for 2 seconds when a metal or chrome tape is inserted Nothing is displayed for a normal tape Basic Operation of Tuner Basic Operation Manual and Seek Tuning You can select the tuning method by changing the length of time you press the 2 3 button Manual Tuning step...

Page 51: ... Multi CD Player before reading of information on all discs has been completed reading of information stops part way through This will prevent you from using a number of functions If you try and use these functions NOT READY is displayed If this happens reading of information begins again when you switch to a component other than the 50 Disc type Multi CD Player If the multi CD player cannot opera...

Page 52: ...hin about 30 seconds the Function Menu is automatically canceled 1 Select the desired mode in the Function Menu Refer to Function Menu Functions 2 Operate a mode e g Repeat Play 3 Cancel the Function Menu The button used and the operation it performs are indicated by the key guidance indicator Press the 5 button to switch the key guidance indicator ON and the button to switch it OFF Each press cha...

Page 53: ... 05 cm sec Fast forward rewinding time Approx 100 sec for C 60 Wow flutter 0 09 WRMS Frequency response Metal 30 19 000 Hz 3 dB Stereo separation 45 dB Signal to noise ratio Metal Dolby B NR IN 67 dB IHF A network Dolby NR OUT 61 dB IHF A network FM tuner Frequency range KEH P525 X1M UC P5700 X1M UC 87 9 107 9 MHz KEH P5750 X1M ES 87 5 108 MHz Usable sensitivity 11 dBf 1 0 µV 75 Ω mono S N 30 dB 5...

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