Pioneer KEHP-7900-R, KEHP-7910-R, KEHP-7950 Service manual
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST.......................2
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM...10
4. PCB CONNECTION DIAGRAM ................................32
5. ELECTRICAL PARTS LIST ........................................44
6. ADJUSTMENT..........................................................62
7. GENERAL INFORMATION .......................................63
7.1 DISASSEMBLY ...................................................63
7.2 IC ........................................................................65
7.3 OPERATIONAL FLOW CHART...........................72
8. OPERATIONS AND SPECIFICATIONS.....................73
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2000
K-ZZB. FEB. 2000 Printed in Japan
ORDER NO.
CRT2458
MULTI-CD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-P7900R X1N/EW
KEH-P7900R/X1N/EW
- 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
KEH-P7910R X1N/EE
KEH-P7950 X1N/ES
NOTE:
- 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 Service manual.
MULTI-CD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
2
KEH-P7900R,P7910R,P7950
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
13
14
10
8
12
11
9
1
2
6
5
7
4
3
- KEH-P7900R/X1N/EW, KEH-P7910R/X1N/EE
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly 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.
3
KEH-P7900R,P7910R,P7950
1 Cord Assy(EW) CDE6284
Cord Assy(EE) CDE6285
2 Inner Box CHW1754
3 Accessory Assy CEA1917
4 Screw CBA1304
5 Handle CNC5395
6 Bush CNV3930
* 7 Polyethylene Bag E36-615
8 Polyethylene Bag CEG-162
9 Carton(EW) CHG4027
Carton(EE) CHG4028
10 Contain Box(EW) CHL4027
Contain Box(EE) CHL4028
11 Protector CHP2251
12 Protector CHP2252
13-1 Polyethylene Bag CEG1116
13-2 Owner’s Manual(EW) CRD3180
Owner’s Manual(EE) CRD3187
13-3 Owner’s Manual(EW) CRD3181
13-4 Owner’s Manual(EW) CRD3182
13-5 Installation Manual(EW) CRD3183
Installation Manual(EE) CRD3188
* 13-6 Passport(EW) CRY1013
* 13-7 Warranty Card CRY1157
* 13-8 Caution Card CRP1207
* 13-9 Caution Card(EE) CRP1216
14 Case Assy CXB3520
Mark No. Description Part No. Mark No. Description Part No.
- PACKING SECTION PARTS LIST
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.
- Owner's Manual, Installation Manual
Model Part No. Language
KEH-P7900R/X1N/EW CRD3180 English, Spanish
CRD3181 German, French
CRD3182 Italian, Dutch
CRD3183 English, Spanish, German, French, Italian, Dutch
- Owner's Manual, Installation Manual
Model Part No. Language
KEH-P7910R/X1N/EE CRD3187 English, Russian
CRD3188 English, Russian
4
KEH-P7900R,P7910R,P7950
- KEH-P7950/X1N/ES
1 Carton CHG4029
2 Cord Assy CDE6231
* 3 Accessory Assy CEA2350
4 Spring CBH1650
* 5 Screw Assy CEA2351
6 Screw CBA1304
* 7 Polyethylene Bag CEG-127
8 Screw CRZ50P090FMC
9 Screw TRZ50P080FMC
* 10 Polyethylene Bag CEG-158
11 Handle CNC5395
12 Bush CNV3930
13 Base Assy CEA2426
* 14 Base CNS5031
* 15 Sheet CZA3371
16 Polyethylene Bag CZE3188
17 Polyethylene Bag CEG-162
18 Battery CEX1006
19 Contain Box CHL4029
20 Protector CHP2251
21 Protector CHP2252
22 Case Assy CXB3520
23 Inner Box CHW1759
24-1 Polyethylene Bag CEG1116
24-2 Owner’s Manual CRD3184
24-3 Owner’s Manual CRD3185
24-4 Installation Manual CRD3186
* 24-5 Caution Card CRP1207
* 24-6 Caution Card CRP1216
25 Remote Control Assy CXB3875
Mark No. Description Part No. Mark No. Description Part No.
- PACKING SECTION PARTS LIST
24
22
19
17
21
20
5
8
12
4
11
10
9
7
6
3
1
2
14
16
15
13
18
25
23
- Owner's Manual, Installation Manual
Model Part No. Language
KEH-P7950/X1N/ES CRD3184 English, Spanish,Portuguese(B)
CRD3185 Chinese, Arabic
CRD3186 English, Spanish, Portuguese(B), Chinese, Arabic
5
KEH-P7900R,P7910R,P7950
2.2 EXTERIOR
KEH-P7900R/X1N/EW
6
KEH-P7900R,P7910R,P7950
1 Screw BMZ30P040FZK
2 Screw BSZ26P050FMC
3 Screw BSZ30P050FMC
4 Screw BSZ30P200FMC
5 Cord Assy CDE6233
6 Cord Assy
See Contrast table(2)
7 Fuse(10A) CEK1136
8 Cap
See Contrast table(2)
9 Cap CNS1472
10 Resistor RS1/2PMF102J
11 Screw ISS26P055FUC
12 Case CNB2597
13 Holder CNC6798
14 Holder
See Contrast table(2)
15 Spacer See Contrast table(2)
16 Insulator CNM6640
17 Panel
See Contrast table(2)
18 Cap CNV2680
19 Tuner Amp Unit
See Contrast table(2)
20 Screw BPZ26P060FMC
21 Screw BSZ26P060FMC
22 Screw BSZ26P160FMC
23 Cord Assy CDE5852
24 Clamper CEF1007
25 Pin Jack(CN351) CKB1028
26 Terminal(CN403) CKF1059
27 Plug(CN901) CKM1278
28 Jack(CN451) CKN1027
29 Plug(CN352) CKS1238
30 Connector(CN751) CKS3124
31 Connector(CN101) CKS3408
32 Plug(CN801) CKS3537
33 Connector(CN251) CKS3568
34 Jack(CN452) CKS4061
35 Antenna Jack(CN401) CKX1056
36 Panel CNB2547
37 Holder
See Contrast table(2)
38 Holder CNC7996
39 Case CNC8138
40 Case CNC8301
41 Holder CNC8696
42 Insulator
See Contrast table(2)
43 Insulator CNM6249
44 Insulator CNM6250
45 Insulator CNM6875
46 Heat Sink CNR1505
47 Holder CNV5375
48 FM/AM Tuner Unit
See Contrast table(2)
49 Holder CNC7532
50 Detach Grille Assy
See Contrast table(2)
51 Screw BPZ20P100FZK
52 Knob CAA1525
53 Button(SOURCE) CAC6331
54 Button(OPEN) CAC6333
55 Button(F,A)
See Contrast table(2)
56 Button(DISP) See Contrast table(2)
57 Button(BAND) See Contrast table(2)
58 Button(E) CAC6464
59 Spring CBH2316
60 Spring CBH2320
61 Cushion CNM6542
62 Spacer CNM6943
63 Cover
See Contrast table(2)
64 Holder CNV6177
65 Keyboard Unit
See Contrast table(2)
66 Connector(CN1901) CKS4205
67 Holder CNC8698
68 Cushion CNM6633
69 Spacer CNM6710
70 Spacer CNM6711
71 Sheet CNM6746
72 Holder CNV6105
73 OEL Unit MXR8004
74 Knob Unit
See Contrast table(2)
75 Grille Unit See Contrast table(2)
76 Button(EJECT) CAC6327
77 Door CAT2109
78 Screw(M2x2) CBA1176
79 Washer CBF1038
80 Spring CBH1838
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
KEH-P7950/X1N/ES
KEH-P7910R/X1N/EE
7
KEH-P7900R,P7910R,P7950
(2) CONTRAST TABLE
KEH-P7900R/X1N/EW, KEH-P7910R/X1N/EE and KEH-P7950/X1N/ES are constructed the same except for
the following:
81 Spring CBH2310
82 Spring CBH2312
83 Spring CBH2313
84 Spring CBH2393
85 Spring CBL1492
86 Holder CNC8560
87 Cushion CNM5486
88 Spacer CNM6811
89 Panel CNS5728
90 Arm CNV5991
91 Arm CNV5992
92 Arm CNV5993
93 Lever CNV5994
94 Gear CNV5995
95 Gear CNV5996
96 Gear CNV5997
97 Pin CNV6027
98 Panel PCB Unit CWM6720
99 Socket(CN605) CKS3550
100 Connector(CN604) CKS4206
101 Damper Unit CXB5070
102 Holder Unit CXB5736
103 Holder Unit CXB5737
104 Screw IMS20P045FZK
105 Chassis Unit
See Contrast table(2)
106 Cassette Mechanism ModuleEXK4010
107 IC(IC301) PAL005A
108 Transistor(Q921) 2SD2396
109 Chock Coil(L901) CTH1171
110 Remote Control Assy
See Contrast table(2)
111 Battery Cover See Contrast table(2)
112 Cushion See Contrast table(2)
113 Double Sided Tape CNM6811
Mark No. Description Part No. Mark No. Description Part No.
Part No.
Mark No. Symbol and Description KEH-P7900R/X1N/EW KEH-P7910R/X1N/EE KEH-P7950/X1N/ES
6 Cord Assy CDE6284 CDE6285 CDE6231
8 Cap CKX-003 Not used Not used
14 Holder CNC8357 CNC5704 CNC5704
15 Spacer CNM4913 Not used Not used
17 Panel CNS5992 CNS5992 CNS5993
19 Tuner Amp Unit CWM6957 CWM6958 CWM6959
37 Holder CNC7533 Not used Not used
42 Insulator CNM5967 Not used Not used
48 FM/AM Tuner Unit CWE1500 CWE1504 CWE1501
50 Detach Grille Assy CXB4971 CXB4972 CXB4973
55 Button(F,A) CAC6337 CAC6337 CAC6338
56 Button(DISP) CAC6339 CAC6339 CAC6639
57 Button(BAND) CAC6343 CAC6343 CAC6334
63 Cover CNS5737 CNS5737 CNS5738
65 Keyboard Unit CWM6940 CWM6940 CWM6939
74 Knob Unit CXB5350 CXB5350 CXB5351
75 Grille Unit CXB5658 CXB5659 CXB5660
105 Chassis Unit CXB5194 CXB5258 CXB5258
110 Remote Control Assy Not used Not used CXB3875
111 Battery Cover Not used Not used CNS5032
112 Cushion Not used CNM4870 CNM4870
8
KEH-P7900R,P7910R,P7950
2.3 CASSETTE MECHANISM MODULE
9
KEH-P7900R,P7910R,P7950
Mark No. Description Part No. Mark No. Description Part No.
- CASSETTE MECHANISM MODULE SECTION PARTS LIST
1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw EBA1037
6 Spring EBH1531
7 Spring EBH1624
8 Spring EBH1625
9 Spring EBH1626
10 Spring EBH1627
11 Spring EBH1629
12 Cord EDD1024
13 Photo-reflector(EGN1) EGN1004
14 Arm ENC1526
15 Lever ENC1530
16 Lever ENC1531
17 Arm ENC1532
18 Frame ENC1533
19 Holder ENC1534
20 Gear ENC1535
21 Arm ENC1536
22 Roller ENR1040
23 Belt ENT1027
24 Collar ENV1508
25 Arm ENV1539
26 Arm ENV1540
27 Gear ENV1544
28 Gear ENV1547
29 Gear ENV1548
30 Worm Wheel ENV1550
31 Lever ENV1551
32 Flywheel ENV1554
33 Gathering PCB ENX1054
34 Switch(S1,S2,S3) ESG1007
35 Deck Unit EWM1024
36 Plug(CN251) CKS3540
37 Gathering PCB ENX1053
38 Motor Unit(M1) EXA1490
39 Motor EXM1027
40 Head Assy(HD1) EXA1589
41 Motor Unit(M2) EXA1580
42 Screw BMZ20P022FMC
43 Bracket ENC1528
44 Chassis Unit EXA1582
45 Pinch Holder Unit EXA1584
46 Pinch Roller ENV1518
47 Pinch Holder Unit EXA1583
48 Pinch Roller ENV1518
49 Reel Unit EXA1585
50 Head Base Unit EXA1586
51 Lever Unit EXA1587
52 Gear Unit EXA1588
53 Motor Unit(Service) EXX1055
54 Washer HBF-179
55 •••••
56 •••••
57 Arm ENC1537
10
KEH-P7900R,P7910R,P7950
1
23
4
1234
D
C
B
A
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
B
FM/AM TUNER UNIT
A
TUNER AMP UNIT
CN401
IC 101
CA0008AM
IC 453
NJM2068MD
IC 961
S-80734ANDY-I
RESET
IP-BUS DRIVER
RDS
DECODER
VDD
M
M
CN252
CN254
CN255
CN256
CN253
CN251 CN251
EQ AMP
MECHANISM
DRIVER
1
4
3
9
20
19
8
11
64513
64513
4
3
9
20
19
8
11
5
6
2
1
S3
70µsS1LOAD
S2
MODE
EGN1
REEL
SENSE
M1
MAIN
MOTOR
M2
SUB
MOTOR
REV
L-ch
FWD
L-ch
8710
1
2
5
TAPE+B
VCC
B.U
Lch
L1
MUTE
B.U
stby
mtl
LOAD
LOADSW
MTLSW
STBY
RIMUTE
1718
39
36
37
17
1918
7
5
IC 251
CXA2560Q
IC 351
PA2020A
G
REEL SENSE PCB
F
DECK UNIT
Q101
Q402
X501
Q155
Q501
Q154
Q151 Q153
8
5
1
7
11
ASNB
B–
B+
BL+
BL–
B.U
5
8
11 12
20
24
6
3
1
2
7
8
IPPW
RX
TX
4
18
21
6
NL2
ldet
COMP
L-OUT
IC 501
PM4009A
Q3
CF202
X901
VDD
VCC
LOCL
VDD
VCC
ANTENNA
27
28
1
2
Q201 Q204
Q202
T51 Q51 CF51 CF52 CF53
ANT1 TV
ANT2 TV
RF TV
AM RF
EEPROM
IC 3
BR9010FV
MIXER, IF AMP DET
IC 1
PML002A
FM/AM 1ST IF 10.7MHz
AM 2ND IF 450kHz
FM FRONT END
5
6
4
3
35
33
38 42 46
32
4439
45 55 57 61 74 75
71
65
78
54
70
69
63
25 24
19
46131211444134 33
22
IC 2 PM4008A
22 10 14 12 15 16 8 13 2 3
DI/DO
CE2CKCE1
SDBLSLFMSD
NL1
CN101
CN452
CN451
Q401
25
EW, EE
B
21
B
AL
BU
TEL5V
Q102
Q451
EW, EE
IP-BUS
TEL
MIC
11
KEH-P7900R,P7910R,P7950
1
2
34
1
2
34
D
C
B
A
RIMUTE
loadsw
mtlsw
stby
67
64
58
59
reset
11
IPPW
RX
TX
86
85
24
PEE
100
TELSW
10
TEL1OUT
6
IN3_L
Frontout_L
42
10
adpw
22
AVREF
VDD
B.UVDD
B.U
83
DALMON
80
DRELAY
47
16
bsens
93
asens
92
isens
91
dled
50
DRSYS
49
DRSENS
48
TELIN
69
Rearout_L
FLIN
RLIN
SYSPW
11
12
9
7
14
22 4 25
Preout_L
9
X2
15
X1
16
RL–
23
RL+
21
FL–
3
FL+
RL–
TEL
DRSW
ILL
ACC
ALARM
GND
BUP
B.U
B.U
RL+
FL–
BREM
FL+
FL
RL
5
IN4+L
43
IN4_L
44
IN2_L
41
IN1_R
37
ASENBO
25
SL
74
NL1
76
SDBW
51
TUNPCE
99
TUNPCK
97
TUNPDO
98
TUNPDI
94
LOCL
30
SD
38
NL2DT
42
ldet
88
fm/AM
29
tmute
36
IC 203
PML004AF
IC 301
PAL005A
IC 271
PA2028A
ELECTRONIC VOLUME/
SOURCE SELECTOR
POWER AMP
HIGH-OUT
SYSTEM
CONTROLLER
MUTE STBY B.REM
16
18
Q301
Q261
Q351
Q352
Q262
Q983
Q981
Q921
Q923
Q922
IC 1904
PD5536A
IC 1905
PM5002A
IC 1906
PM5003A
IC 1902
PD8063A
5
6
4
8
10
11
3
IC 1901
PD5554A
KEY MATRIX
IC 1903
RS-140
REMOTE CONTROL SENSOR
OPT IN
Q1903
Q1904
Q1907
Q1905
Q1902
Q1901
D1912
D1911
C
KEYBOARD UNIT
D
PANEL PCB UNIT
ILB
SWDVDD
DPDT
KYDT
ENCH
ENCL
7
9
8
7
9
5
3
2
10
6
4
12
11
13
10
2
4
14
9
7
12
11
13
10
2
4
14
9
7
CSENS
DGND
OELB
CVCC
X1901
S1930
S602
34
5
4
1
14 97 32
33
11
13
Q913
Q911
Q931
Q932
Q681
Q683
Q951
Q682
Q601
IC 681
TPD1018F
DFS
B.U
SYS+B
B.U
X601
SYSPW
A
4
1
1
4
2
1
6
5
3
7
8
9
11
10
12
4
CN901
CN352
CN351
ES
IC 752
NJM2068MD
IC 751
NJM2068MD
MIC
Q751
VR751
ASL AMPASL AMP
1
3
1
3
121
2
CN751
CN752
ASLIN
77
TXD
96
SWVDD
1
FLPILM
8
EJTIN
78
ILMPW
20
OELPW
23
RXD
95
RDT1
4
RDT0
3
csens
43
MUTE
28
SAIN
75
MIC751
REM
VDD1
AVCC
ILMD
DPDT
KYDT
XOUT
XIN
R669,700,C685
Q453
Q452
BZ641
ALARM
BUZZER
DFS
ALARM
IC 452
NJM2068MD
IC 451
TC4W66FU
2
6
1
6
1
5
2
EW, EE
ES
Q454
Q455
VDD
Q132
Q133
VDD
VDD
SYSPW
IC 131
BA3834F
Q131
814
17
SYS+B
CN1901CN605 CN604CN801
Q801
Q805
Q802
Q852
Q851
VDD
VDD
Q804
Q803
IC 851
NJM2360M
16
ILB
SWVDD
55
66
88
EJILP
EJILM
EJSW
OELB
DPDT
KYDT
RDT1
RDT0
CSENS
DGND
A
Q1908
TUNPCE2
32
E
MIC PCB
ES
ES
EW, EE
EW, EE
EE, ES
EW
EW, EE
IC 601 (1/2)
PE5100A(EW,EE)
PE5101A(ES)
SYSTEM
CONTROLLER
IC 601 (1/2)
PE5100A(EW,EE)
PE5101A(ES)
EJECT
BACK UP
GND
ALARM
ACC
ILLUMI
DOOR
SW
MUTE
RLRL+
FLFL+
B.REMOTE
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
12
KEH-P7900R,P7910R,P7950
1
23
4
1234
D
C
B
A
A-a A-b
A-a
A-b
A-b
A-a
Large size
SCH diagram
Guide page
Detailed page
A
A-a
E
AM(30%):-26dBs
FM(100%):-15.5dBs
AM(30%):-30dBs
FM(100%):-19.5dBs
EW,EE
ES
TAPE:-9dBs
IP-BUS:+2.2dBs
200mA
D
PANEL PCB UNIT
C
CN1901
KEYBOARD UNIT
B
FM/AM TUNER UNIT
E
MIC PCB
F
CN251
Sy
No
dis
NOTE :
Sy
No
dis
>
TEL
MIC
R161
R162
R163
R164
C161
C162
EW
1R6K
1R6K
2R7K
2R7K
R012
R012
ES
2R7K
2R7K
1R6K
1R6K
R018
R018
13
KEH-P7900R,P7910R,P7950
5
6
78
5
6
78
D
C
B
A
A-b
A
AM(30%):-27dBs
FM(100%):-16.5dBs
AM(30%):-31dBs
FM(100%):-20.5dBs
IP-BUS:+2.2dBs
TAPE:-9dBs
(EW, EE)
(ES)
AM(30%):-7.9dBs
FM(100%):+2.6dBs
AM(30%):-1.9dBs
FM(100%):+6.6dBs
(ES)
(EW,EE)
IP-BUS:+7.3dBs
TAPE:-5.9dBs
IP-BUS:+9.3dBs
TAPE:-3.9dBs
(EW,EE)
(ES)
(EW,EE)
AM(30%):-0.4dBs
FM(100%):+10.1dBs
IP-BUS:+14.8dBs
TAPE:+1.6dBs
(ES)
AM(30%):-2.66dBs
FM(100%):+5.84dBs
IP-BUS:+8.54dBs
TAPE:-4.66dBs
(EW,EE)
AM(30%):+18.1dBs
FM(100%):+28.6dBs
IP-BUS:+33.3dBs
TAPE:+20.1dBs
(ES)
AM(30%):+24.1dBs
FM(100%):+32.6dBs
IP-BUS:+35.3dBs
TAPE:+22.1dBs
(EW,EE)
DFSSW
600mH
HIGH-OUT
A
TUNER AMP UNIT
BACK UP
GND
ILLUMI
B.REMOTE
ACC
ALARM(ES)
DOOR SW(ES)
MUTE
RL+
FL+
FLRR+
FR+
RRFR-
RL-
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
R913
EW,EE
7R5K
ES
6R2K
R351
R352
R353
R354
C351
C352
C353
C354
EW,EE
820
820
820
820
10/16
10/16
10/16
10/16
ES
82
82
82
82
10/35
10/35
10/35
10/35
DSENSE
14
KEH-P7900R,P7910R,P7950
1
23
4
1234
D
C
B
A
AM(30%):-26dBs
FM(100%):-15.5dBs
AM(30%):-30dBs
FM(100%):-19.5dBs
EW,EE
ES
IP-BUS:+2.2dBs
AM(30%):-27dBs
FM(100%):-16.5dBs
AM(30%):-31dBs
FM(100%):-20.5dBs
IP-BUS:+2.2dBs
TAPE:-9dBs
(EW, EE)
(ES)
200mA
E
MIC PCB
Symbol indicates a resistor.
No differentiation is made betw
discrete resistors.
NOTE :
Symbol indicates a capacitor.
No differentiation is made betw
discrete capacitors.
>
TEL
MIC
R161
R162
R163
R164
C161
C162
EW
1R6K
1R6K
2R7K
2R7K
R012
R012
ES
2R7K
2R7K
1R6K
1R6K
R018
R018
A-a
A-a
A-b
E
1
2
15
KEH-P7900R,P7910R,P7950
5
6
78
5
6
78
D
C
B
A
A-a
A-a
A-b
TAPE:-9dBs
D
PANEL PCB UNIT
C
CN1901
KEYBOARD UNIT
B
FM/AM TUNER UNIT
F
CN251
DSENSE
3
16
1
23
4
1234
D
C
B
A
A-a
A-b
A-b
KEH-P7900R,P7910R,P7950
AM(30%):-7.9dBs
FM(100%):+2.6dBs
AM(30%):-1.9dBs
FM(100%):+6.6dBs
(ES)
(EW,EE)
IP-BUS:+7.3dBs
TAPE:-5.9dBs
IP-BUS:+9.3dBs
TAPE:-3.9dBs
(EW,EE)
(ES)
(EW,EE)
AM(30%):-0.4dBs
FM(100%):+10.1dBs
IP-BUS:+14.8dBs
TAPE:+1.6dBs
(ES)
AM(30%):-2.66dBs
FM(100%):+5.84dBs
IP-BUS:+8.54dBs
TAPE:-4.66dBs
(EW,EE)
HIGH-OUT
A
TUNER AMP UNIT
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
R351
R352
R353
R354
C351
C352
C353
C354
EW,EE
820
820
820
820
10/16
10/16
10/16
10/16
ES82828282
10/35
10/35
10/35
10/35
1
2
17
5
6
78
5
6
78
D
C
B
A
A-b
A-a
A-b
KEH-P7900R,P7910R,P7950
AM(30%):+18.1dBs
FM(100%):+28.6dBs
IP-BUS:+33.3dBs
TAPE:+20.1dBs
(ES)
AM(30%):+24.1dBs
FM(100%):+32.6dBs
IP-BUS:+35.3dBs
TAPE:+22.1dBs
(EW,EE)
DFSSW
600mH
BACK UP
GND
ILLUMI
B.REMOTE
ACC
ALARM(ES)
DOOR SW(ES)
MUTE
RL+
FL+
FL-
RR+
FR+
RR-
FR-
RL-
R913
EW,EE
7R5K
ES
6R2K
3
18
KEH-P7900R,P7910R,P7950
1
23
4
1234
D
C
B
A
B
3.3 FM/AM TUNER UNIT(KEH-P7900R/X1N/EW)
KV1410(23)
KV1410(23)
Mark
None
F0
F65
F125
A0
A74
A125
Band
–
FM
FM
FM
AM
AM
AM
Input Level
–
0dBf
65dBf
125dBf
0dBµ
74dBµ
125dBµ
DAN217U
DAN217U
FM/AM TUNER UNIT
B
A
19
KEH-P7900R,P7910R,P7950
5
6
78
5
6
78
D
C
B
A
B
KV1410(23)
20
KEH-P7900R,P7910R,P7950
1
23
4
1234
D
C
B
A
B
3.4 FM/AM TUNER UNIT(KEH-P7910R/X1N/EE)
KV1410(23)
Mark
None
F0
F65
F125
A0
A74
A125
Band
–
FM
FM
FM
AM
AM
AM
Input Level
–
0dBf
65dBf
125dBf
0dBµ
74dBµ
125dBµ
DAN217U
DAN217U
C29
C26
4700P
4700P
0R0
C30
12P
R23
D7
1SS390
R5 470
C34
C27
4700P
4700P
D8
1SS390
R5 470
R24 470
C13
27P
C925
4700P
D901
1SS390
C903
27P
R901
4R7K
4P
0R0
C9
22P
0R0
C33
1
56P
FM/AM TUNER UNIT
B
A
21
KEH-P7900R,P7910R,P7950
5
6
78
5
6
78
D
C
B
A
B
KV1410(23)
C925
4700P
D901
1SS390
C903
27P
7K
R910
0R0
22
KEH-P7900R,P7910R,P7950
1
23
4
1234
D
C
B
A
3.5 FM/AM TUNER UNIT(KEH-P7950/X1N/ES)
KV1410(23)
Mark
None
F0
F65
F125
A0
A74
A125
Band
–
FM
FM
FM
AM
AM
AM
Input Level
–
0dBf
65dBf
125dBf
0dBµ
74dBµ
125dBµ
DAN217U
DAN217U
FM/AM TUNER UNIT
B
A
B
23
KEH-P7900R,P7910R,P7950
5
6
78
5
6
78
D
C
B
A
KV1410(23)
B
24
KEH-P7900R,P7910R,P7950
1
23
4
1234
D
C
B
A
3.6 KEYBOARD UNIT(KEH-P7900R/X1N/EW, KEH-P7910R/X1N/EE)
OE
ENT
DISP
OPEN
TA
EQ+
EQ-
SOURCE
1
23
4
5
6
PT
TX(RT)
AUDIO
BAND
FUNC
CN604
D
C
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