Pioneer KEH-P7020RXN/EW Page 2 Service Manual Download

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KEH-P7020R

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM(KEH-P7020R/XN/EW)

Q153

Q151

Q402

Q155

Q501

IC 501

PM4009A

IC 101

HA12187FP

X501

RDS
DECODER

IP-BUS DRIVER

MUTE

XOUT

XIN

PEE

SYSTEM CONTROLLER

IC 601(2/2)

PD5698B

CN401

VDD

VCC

ANT

BUS-

BUS+

BUS+L

BUS-L

IPPW

SWVDD

Q852

TUNER AMP UNIT

X601

VDD

SWDACC

VST,VC

TUN L

BUS+L

BUS-L

TAPE L

Q851

DPDT

KYDT

SYSPW

Q101

Q102

IC 851

NJM2360M

EJTIN

ILMPW

DSE

DSENS

TEL

FUSE

200mA

CN451

MIC751

TEL

LVLINL

LEVEL IND

TC7SET08FU

IC 801

CN101

BUZZER

CN251

DIRO

LOADSW

POS

SC2

MSIN

65 SC1

RIMUTE

66
68

CM
STBY

RIMUTE

DIRO

POS

SC2

SC1

STBY

LOADSW

stby

B.U

MUTE

LOAD

DECK UNIT

IC251

HA12228F

IC351

PA2020A

EQ AMP

MECHANISM

DRIVER

CN251

CN252

CN254

CN255

CN253

16 MS

Lch

FWD

L-ch

REV
L-ch

CN256

LOAD

MODE

EGN1

REEL

SENSE

SUB

MOTOR

MAIN

MOTOR

REEL SENSE PCB

f/R

POS

NES

SC1

SC2

IC 3

EEPROM

FM/AM TUNER UNIT

FM/AM 1ST IF 10.7MHz

T51 Q51 CF51 CF52 CF53

IC1

MIXER, IF AMP, DET.

LDET

COMP

12 15 16

CF202

VDD

VCC

DI/DO

CE2

CE1

SDBW

FMSD

NL1

NL2

IC 2 FM MPX

AMANT

FMANT

ATT

AMRF

FMRF

RF ADJ

ANT2 ADJ

X901

10.25MHz

ANT1 ADJ

LOCL

LOCH

AMDET

MPXREF 41kHz

AM 2ND IF

450kHz

CREQ

DGND

STIND

L ch

R ch

FMLOCL

RFGND

Summary of Contents for KEH-P7020RXN/EW

Page 1: ...ion 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 Service manual Extension cable of cassette mechanism Jig No GGD1121 Model No Order No Mech Module Remarks CX 1011 CRT2406 3L Cassette Mech Module Mech Description Disassembly Adjustment 20...

Page 2: ...U MSIN 65 SC1 RIMUTE 33 66 68 CM STBY RIMUTE DIRO POS ES SC2 SC1 CM STBY LOADSW stby B U MUTE LOAD 5 1 4 2 1 3 11 9 20 19 DECK UNIT IC251 HA12228F IC351 PA2020A EQ AMP MECHANISM DRIVER CN251 CN252 CN254 CN255 CN253 6 16 MS Lch 20 FWD L ch REV L ch 37 36 39 18 19 17 3 1 5 6 8 7 10 CN256 3 1 5 6 S1 LOAD S2 MODE EGN1 REEL SENSE M M M2 SUB MOTOR M1 MAIN MOTOR 5 2 1 REEL SENSE PCB 6 5 17 f R 15 13 13 1...

Page 3: ...U Q921 Q922 23 SYSPW BU Q301 MUTE RL Q351 PL 1 Q352 FL 5 Q353 FL R L 12 PL Q801 IC 851 NJM2360M 6 1 EJTIN 44 7 2 10 11 14 8 7 2 10 11 14 8 CN1850 CN1851 S1850 KYDT 4 2 5 10 8 IC 1902 PD8088A FONT ROM IC 1903 TSOP1840SB3V REMOTE CONTROL SENSOR OPT IN 3 1 5 Q1961 Q1962 ILMD 32 AMBER GREEN REM 27 28 DPDT KTDT EJECT OEL UNIT Q1941 4 16 2 8 3 ILMPW MUTE PL FL RL Q1963 Q1964 Q1965 IC 631 PDH0046A S801 D...

Page 4: ...LOADSW stby B U MUTE LOAD 5 1 4 2 1 3 11 9 20 19 DECK UNIT IC251 HA12228F IC351 PA2020A EQ AMP MECHANISM DRIVER CN251 CN252 CN254 CN255 CN253 6 16 MS Lch 20 FWD L ch REV L ch 37 36 39 18 19 17 3 1 5 6 8 7 10 CN256 3 1 5 6 S1 LOAD S2 MODE EGN1 REEL SENSE M M M2 SUB MOTOR M1 MAIN MOTOR 5 2 1 REEL SENSE PCB 6 5 17 f R 15 13 13 11 POS NES 18 17 16 15 SC1 CM 16 14 SC2 3 11 9 20 19 6 5 15 13 18 17 16 54...

Page 5: ...TUN L BUS L BUS L TAPE L DPDT 3 5 DPDT KYDT SYS B BU Q921 Q922 23 SYSPW BU Q301 MUTE RL Q351 PL 1 Q352 FL 5 Q353 FL R L 12 PL Q801 IC 851 NJM2360M 6 1 EJTIN 44 7 2 10 11 14 8 7 2 10 11 14 8 CN1850 CN1851 S1850 KYDT 4 2 5 10 8 IC 1902 PD8088A FONT ROM IC 1903 TSOP1840SB3V REMOTE CONTROL SENSOR OPT IN 3 1 5 GREEN REM 27 28 DPDT KTDT EJECT OEL UNIT Q1941 4 16 2 8 3 ILMPW MUTE PL FL RL S801 DSENS SYST...

Page 6: ...mponent parts indicates the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors B C D PANEL UNIT KEYBOARD UNIT CN1901 FM AM TUN...

Page 7: ...CH FRONT L CH L CH R CH FRONT R CH A TUNER AMP UNIT ELECTRONIC VOLUME SOURCE SELECTOR SYSTEM CONTROLLER RESET ASL LEVEL INDICATOR MUTE MUTE POWER AMP DC DC CONVERTER TEL BSENSE ASENSE ILL SENSE PML009A MUTE MUTE MUTE VDD REGULATOR SYS B REGULATOR 0R0 0R0 FM 16 5dBs AM 27 0dBs BUS 2 2dBs APE 11 24dBs FM 6 6dBs AM 1 9dBs IP BUS 9 3dBs TAPE 4 14dBs FM 14 1dBs AM 0 6dBs IP BUS 14 9dBs TAPE 1 36dBs FM ...

Page 8: ...ce of the safety factor of the part Therefore when replacing be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors D NIT CN251 IP BUS IP BUS DRIVER HANDSFREE TEL FM 100 15 5dBs AM 30 26 0dBs TAPE 11...

Page 9: ...A a A b A a A b A a A b B 2 2 3 1 4 EJECT 1K 47K B C PANEL UNIT KEYBOARD UNIT CN1901 FM AM TUNER UNIT RDS DECODER SYSTEM CONTRO ANTENNA JACK FM 100 15 5dBs AM 30 26 0dBs NC NR RIMUTE MSIN DIRO PLAY MTLSW LOADSW ES NC POS SC2 SC1 CM NC STBY ...

Page 10: ...AR L CH FRONT L CH L CH R CH FRONT R CH A TUNER AMP UNIT ELECTRONIC VOLUME SOURCE SELECTOR RESET ASL LEVEL INDICATOR MUTE POWER AMP PML009A MUTE MUTE MUTE FM 16 5dBs AM 27 0dBs P BUS 2 2dBs TAPE 11 24dBs FM 6 6dBs AM 1 9dBs IP BUS 9 3dBs TAPE 4 14dBs FM 14 1dBs AM 0 6dBs IP BUS 14 9dBs TAPE 1 36dBs ...

Page 11: ...FR FL FL RL RL ACC GND B REM BACK UP TEL MUTE 2 1 4 3 6 5 8 7 10 9 12 11 14 13 16 15 ILL ILL FUSE 10A CEK1136 NC EMUTE PAL007A SYSTEM CONTROLLER RESET MUTE POWER AMP DC DC CONVERTER TEL BSENSE ASENSE ILL SENSE VDD REGULATOR SYS B REGULATOR FM 32 6dBs AM 24 1dBs IP BUS 35 3dBs TAPE 21 86dBs LOADSW ES NC POS SC2 SC1 CM NC STBY NC NC NC NC NC NC 1R5K 1R5K ...

Page 12: ...g be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors B C D PANEL UNIT KEYBOARD UNIT CN1901 FM AM TUNER UNIT CN251 IP BUS IP BUS DRIVER EL SO SYSTEM CONTROLLER ANTENNA JACK FM 100 19 5dBs AM 30 30...

Page 13: ...H FRONT R CH A TUNER AMP UNIT ELECTRONIC VOLUME SOURCE SELECTOR SYSTEM CONTROLLER RESET ASL LEVEL INDICATOR MUTE MUTE POWER AMP DC DC CONVERTER TEL BSENSE ASENSE ILL SENSE PML009A MUTE MUTE MUTE VDD REGULATOR SYS B REGULATOR FM 20 5dBs AM 31 0dBs P BUS 2 2dBs TAPE 11 24dBs FM 2 6dBs AM 7 9dBs IP BUS 7 3dBs TAPE 6 14dBs FM 10 1dBs AM 0 4dBs IP BUS 14 9dBs TAPE 1 36dBs FM 28 6dBs AM 18 1dBs IP BUS 3...

Page 14: ...fety factor of the part Therefore when replacing be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors D NIT CN251 IP BUS IP BUS DRIVER FM 100 19 5dBs AM 30 30 0dBs TAPE 11 2dBs IP BUS 2 2dBs FM 20 ...

Page 15: ...8 27 A a A b A a A b A a A b B 2 2 3 1 4 EJECT B C PANEL UNIT KEYBOARD UNIT CN1901 FM AM TUNER UNIT SYSTEM CONTRO ANTENNA JACK FM 100 19 5dBs AM 30 30 0dBs NC NR RIMUTE MSIN DIRO PLAY MTLSW LOADSW ES NC POS SC2 SC1 CM NC STBY R018 R018 ...

Page 16: ...AR L CH FRONT L CH L CH R CH FRONT R CH A TUNER AMP UNIT ELECTRONIC VOLUME SOURCE SELECTOR RESET ASL LEVEL INDICATOR MUTE POWER AMP PML009A MUTE MUTE MUTE FM 20 5dBs AM 31 0dBs P BUS 2 2dBs TAPE 11 24dBs FM 2 6dBs AM 7 9dBs IP BUS 7 3dBs TAPE 6 14dBs FM 10 1dBs AM 0 4dBs IP BUS 14 9dBs TAPE 1 36dBs ...

Page 17: ...D B REM BACK UP TEL MUTE 2 1 4 3 6 5 8 7 10 9 12 11 14 13 16 15 ILL FUSE 10A CEK1136 NC EMUTE PAL007A SYSTEM CONTROLLER RESET MUTE POWER AMP DC DC CONVERTER TEL BSENSE ASENSE ILL SENSE VDD REGULATOR SYS B REGULATOR FM 28 6dBs AM 18 1dBs IP BUS 33 3dBs TAPE 19 86dBs LOADSW ES NC POS SC2 SC1 CM NC STBY NC NC NC NC NC NC 1R5K 1R5K ...

Page 18: ...ENSOR 3 3V REGULATOR DISP SCRL ENT SFEQ BAND ESC VOLUME TA TEXT C B CN1851 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 ...

Page 19: ...KEH P7020R A B C D 5 6 7 8 5 6 7 8 31 KEY CONTROL AND OEL CONTROL FONT ROM OEL UNIT MXS8017 C C KEYBOARD UNIT ...

Page 20: ...NSOR 3 3V REGULATOR DISP SCRL CLK SFEQ BAND ESC VOLUME ENT PAUSE C B CN1851 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 ...

Page 21: ...KEH P7020R A B C D 5 6 7 8 5 6 7 8 33 KEY CONTROL AND OEL CONTROL FONT ROM OEL UNIT MXS8017 C C KEYBOARD UNIT PD8088A ...

Page 22: ...285 0R0 HD1 HEAD ASSY EXA1589 TEST TAPE NCT 150 400Hz 200nWb m RL RR FR FL C302 R1 C301 R1 VR301 33K B 8 24dBs 1dB Fwd R Fwd L Rev R Rev L NF1 R Vref1 RIN L NC RIN R GND FIN R Vref2 FIN L NFI L M OUT L EQOUT L Vref4 TAI L BIAS NC NC MSGV S MUTE 120 70 ser REP f R MSDET MSI MAOUT MSGV R MOUT R EQOUT R Vref3 TAI R RIP PBOUT R NC DET R NRONoff CN252 CN251 Dolby B IC251 390P C252 390P C254 390P PBOUT ...

Page 23: ...K R353 1K R354 1K R373 0R0 R355 270K C352 3900P R362 300 C351 R22 C353 R01 C354 R01 R374 0R0 C356 R01 C355 R1 D352 1SS355 M1 MOTOR UNIT MAIN MOTOR EXA1490 S1 LOAD ESG1007 S2 ESG1007 MODE REEL SENSE EGN1 EGN1004 M2 MOTOR UNIT SUB MOTOR EXA1580 RS3 RS2 RS1 SC2 SC1 TAB MC CE VCC2 NC VCC MCS RRS FRS RSB C TAB MS2 NC NC MM SM1 RSB GND RS mtl MCS load CN255 CN253 CN256 CN254 MECHANISM DRIVER IC351 PA202...

Page 24: ...S 6 GND 7 BL 8 ASENB 9 BR 10 BR 11 BL 1 2 3 4 5 6 7 8 9 10 11 IP BUS ANTENNA FRONT OUTPUT REAR OUTPUT SUB WOOFER OR NON FADING OUTPUT TEL KEH P7020R XN EW 15 16 13 14 11 12 9 10 7 8 5 6 3 4 1 2 1 GND 2 B UP 3 ACC 4 NC 5 ILL 6 B REM 7 NC 8 MUTE POWER SUPPLY 9 RL 10 FL 11 RL 12 FL 13 RR 14 FR 15 RR 16 FR ...

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