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Service
Manual
SELECT
ORDER NO.
CRT2817
KEH-P7020R/XN/EW
MULTI-CD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-P7020R
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
XN/EW
KEH-P7020R
KEH-P7025XN/ES
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks
CX-1011 CRT2406 3L Cassette Mech. Module:Mech.Description, Disassembly, Adjustment
NOTE:
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corpora-
tion.
"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
CONTENTS
1. SAFETY INFORMATION . . . . . . . . . . . . . . . .3 7. GENERAL INFORMATION . . . . . . . . . . . . . . 56
2. EXPLODED VIEWS AND PARTS LIST . . . . . . . . .4 7.1 DIAGNOSIS . . . . . . . . . . . . . . . . . . . . 56
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM . . 14 7.1.1 DISASSEMBRY . . . . . . . . . . . . . . . . 56
4. PCB CONNECTION DIAGRAM . . . . . . . . . . . 36 7.1.2 CONNECTOR FUNCTION DESCRIPTION . . 58
5. ELECTRICAL PARTS LIST . . . . . . . . . . . . . . 44 7.2 IC . . . . . . . . . . . . . . . . . . . . . . . . . 60
6. ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 54 7.3 OPERATION FLOW CHART. . . . . . . . . . . . 66
7.4 CLEANING. . . . . . . . . . . . . . . . . . . . . 67
8. OPERATIONS AND SPECIFICATIONS . . . . . . . . 68
For details, refer to "Important symbols for good services".
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001
K-ZZA. DEC.2001 Printed in Japan
2000.printed in Japan
1 2 3 4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM(KEH-P7020R/XN/EW)
A
A TUNER AMP UNIT
FM/AM TUNER UNIT
Q153 Q151 Q155
FM/AM 1ST IF 10.7MHz MPXREF 41kHz
CN401 AMRF T51 Q51 CF51 CF52 CF53 AMDET
1 AMANT
ANT 28 ATT L ch
IC 2 FM MPX 6
2
R ch Q501
5
RDS VDD
DECODER 24
ANT1 ADJ IC1 COMP
21 20
MIXER, IF AMP, DET. LDET 8 IC 501
18
PM4009A
FMANT
27 ATT
26
RFGND 11 12
FMRF
CF202 X501
IC 3 Q402
RF ADJ AM 2ND IF X901 EEPROM
450kHz 10.25MHz
FMLOCL
VDD
STIND
SDBW
DGND
FMSD
DI/DO
CREQ
VCC
ANT2 ADJ
NL1
NL2
CE2
CE1
WC
NC
NC
NC
CK
SL
LOCH LOCL
23 25 7 17 20 22 10 19 14 24 9 11 12 15 16 8 13 2 3 4 1
VCC
VDD
Q101
SWDACC
B BU
CN101 Q102
5 IP-BUS DRIVER
1 5 1 TX
IC 101
8 6 HA12187FP 2 RX
7
8
11 IPPW
CN451 BUS-
2
D DECK UNIT TEL
1
FUSE
200mA
BUS+
BUS+L BUS+L
TUN L
BUS-L BUS-L
TEL
CN252 CN251 TAPE L
CN251
1 Lch BUZZER
FWD 6 3 3
L-ch
37 EQ AMP MIC751
16 MS VST,VC
36 5 5
5 IC251 17 f/R DIRO
REV 39 HA12228F 6 6 LEVEL IND
L-ch
4 54 24
20 MUTE RIMUTE
9 9 MSIN PEE 94
LVLINL
CN254 33
RIMUTE 87
B.U 55 MUTE
M2 20 20 BU DIRO
2
SUB M 2 5 18 19 58 LOADSW
23
MOTOR 1 11 59 POS SYSPW
POS POS
13 13 13
MECHANISM 13 NES ES 61 ES XOUT
X601
DRIVER 15 15 63
14 SC2 SC2 15
SC2 65 SC1
16 16 XIN
CN255 IC351 15 66 CM
1
C PA2020A
SC1
17 17
SC1
68 STBY
M1 16 CM CM
18 18
MAIN M 17 stby STBY
MOTOR 19 19 SYSTEM CONTROLLER PD
8 7 10
LOAD 1 LOADSW
IC 601(2/2)
11 11 PD5698B 44
EJTIN
CN253
3 1 5 6
SWVDD
DSENS
ILMPW
KYDT
DPDT
3 1 5 6
CN256 36 41 35 40 43
EGN1
REEL
SENSE
S2 S1
BU
MODE LOAD
E REEL SENSE PCB
BU
IC 801 DSE
D 4 2
Q851
TC7SET08FU
BU
6 IC 851 1
NJM2360M
Q852
14 KEH-P7020R
1 2 3 4
5 6 7 8
A
RESET
CN351
1 IC 961 2 RL
VDD
S-80735ANDZI RL
Q351
5
CN352-1
12 PL RL
52
1 PL
RESET
TMUTE Q352
48 FL FL
FM/AM 5 FL
Q353
SYSTEM CONTROLLER
IC 601(1/2)
PD5698B CN352-2
19
LDET VDD REGULATOR
Q911
51 VDD
NL2DT
CN901
ACC
95
NL1
50
SD
BACKUP SENSE BU
97 73 FUSE
SL BSENS 2 2
BACK UP
BU
53 10A
SDBW Q931
72 74 ACC
TUNPCE ASENS 3 3
2 ACC
TUNPCK
71 ACC SENSE
BU TUNPCE2 Q932
1
TUNPDO ISENS
83 ILL SENSE
5 5
B
82
ASENBO ILL
Q951
VDD
8 8
IPPW
10 TELMUTE
TELIN
RX
TX
TX TELEPHONE MUTE
30 29 81 1 1
RX GND
ELECTRONIC VOLUME/
SOURCE SELECTOR POWER AMP
TUN L 42 IN3-L
12 23
BUS+L 43 IN4+L PL FL- 10 10
21 FL-
BUS-L 44 IN4-L IC 203 10 14 IC 301 FL+ 12 12
FL FLIN 3 FL+
PML009A 12
PAL007A RL- 9 9
TEL 40 IN1-L 11 RL-
RL RLIN 5
TAPE L 41 RL+ 11 11
IN2-L SEL_OUT_L MUTE STBY RL+
B.REMOTE
MIC_IN 13 1 22 4 25
6 6
B.REM
MIC751 VST,VCK,VDT
MUTE
Q982
LEVEL INDICATOR IC 132 B.U SYS+B REGULATOR
Q921
7 5
SYS+B BU
MUTE
94 Q301
LVLINL
NJM4558MD
87
MUTE
23 SYSPW Q922 RR RR
SYSPW - +
13
XOUT BACK FR FR
X601
UP - +
15 B.
XIN
ILL REM FL FL
- +
GND ACC RL
-
RL
+
C
IC 631
LLER PDH0046A
44
EJTIN
ILMPW
3
CN801
S1850 B PANEL UNIT C KEYBOARD UNIT
8 8
Q803 EJECT CN1901
BU ILB ILB
7 7 4 9
Q1961 Q1963
GREEN
Q804 Q1962
Q1964
Q802 3.3V REGULATOR
SWDVDD 2 11
SWVDD 5 IC 1904 1 FONT ROM Q1965
BU 2 2
S-818A33AUC-BGN
IC 1902
Q801 PD8088A
REMOTE CONTROL SENSOR
3 AMBER
DPDT DPDT OPT IN IC 1903
11 3 TSOP1840SB3V 1