Pioneer KEH-3930R X1M/EW User manual

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 ELECTRONIC [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 1999 K-ZZD. NOV. 1999 Printed in Japan
ORDER NO.
CRT2420
HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-3930R X1M/EW
Service
Manual
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST.......................2
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....9
4. PCB CONNECTION DIAGRAM ................................22
5. ELECTRICAL PARTS LIST ........................................32
6. ADJUSTMENT..........................................................36
7. GENERAL INFORMATION .......................................37
7.1 DISASSEMBLY ...................................................37
7.2 PARTS .................................................................38
7.2.1 IC................................................................38
7.2.2 DISPLAY....................................................42
8. OPERATIONS AND SPECIFICATIONS.....................43
KEH-3930R/X1M/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:Circuit Description, Mech.Description, Disassembly
KEH-3900R X1M/EW

2
KEH-3930R,3900R
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.
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
10
1
13
7
11
9
8
12
2
5
4
6
3

3
KEH-3930R,3900R
1 Cord Assy CDE6100
2 Accessory Assy CEA1917
3 Screw CBA1304
4 Handle CNC5395
5 Bush CNV3930
* 6 Polyethylene Bag E36-615
7 Polyethylene Bag CEG-162
8 Carton See Contrast table(2)
9 Contain Box See Contrast table(2)
10 Protector CHP2243
11 Protector CHP2244
12-1 Owner’s Manual CRD3122
12-2 Owner’s Manual CRD3123
12-3 Installation Manual CRD3124
* 12-4 Passport CRY1013
* 12-5 Warranty Card CRY1157
12-6 Polyethylene Bag CEG1116
13 Case Assy CXB3520
Mark No. Description Part No. Mark No. Description Part No.
(1) 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.
Part No.
Mark No. Symbol and Description KEH-3930R/X1M/EW KEH-3900R/X1M/EW
8 Carton CHG3844 CHG3843
9 Contain Box CHL3844 CHL3843
(2) CONTRAST TABLE
KEH-3930R/X1M/EW and KEH-3900R/X1M/EW are constructed the same except for the following:
-Owner's Manual, Installation Manual
Model Part No. Language
KEH-3930R/X1M/EW CRD3122 English, Spanish, German
KEH-3900R/X1M/EW CRD3123 French, Italian, Dutch
CRD3124 English, Spanish, German,
French, Italian, Dutch

4
KEH-3930R,3900R
2.2 EXTERIOR

5
KEH-3930R,3900R
1 Screw BSZ26P050FMC
2 Screw BSZ30P050FMC
3 Screw BSZ30P200FMC
4 Cord Assy CDE6100
5 Plug CKM1314
6 Case CNB2350
7 Earth Plate CNC8368
8 Spacer CNM4913
9 Insulator CNM5963
10 Tuner Amp Unit CWM6806
11 Screw BSZ26P080FMC
12 Screw BSZ26P160FMC
13 Cord CDE6158
14 FM/AM Tuner Unit CWE1500
15 Holder CNC7532
16 Plug(CN604) CKM1288
17 Connector(CN602) CKS3568
18 Connector(CN601) CKS3581
19 Antenna Jack(CN402) CKX1056
20 Panel CNB2344
21 Holder CNC5399
22 Holder CNC6845
23 Holder CNC7533
24 Holder CNC7996
25 Insulator CNM5967
26 Heat Sink CNR1505
27 Holder Unit CXB2687
28 •••••
29 Chassis Unit See Contrast table(2)
30 Detach Grille Assy See Contrast table(2)
31 Screw BPZ20P100FZK
32 Button(DETACH) See Contrast table(2)
33 Button(1-6) CAC6275
34 Button(EJECT) CAC6277
35 Button(+ -) See Contrast table(2)
36 Button(SELECT) See Contrast table(2)
37 Button(SOURCE/LOUD) CAC6494
38 Spring CBH2210
39 Cover See Contrast table(2)
40 Keyboard Unit See Contrast table(2)
41 LCD(LCD1801) CAW1559
42 Connector(CN1801) CKS3580
43 Holder CNC8517
44 Rubber CNV5954
45 Lighting Conductor CNV6274
46 Rubber CNV5968
47 Grille Unit See Contrast table(2)
48 Button CAC4836
49 Spring CBH1834
50 Spring CBH1835
51 Spring CBH2182
52 Bracket CNC6135
53 Bracket CNC6791
54 Arm CNV4692
55 Arm CNV4693
56 Arm CNV4728
57 Panel Unit See Contrast table(2)
58 Door See Contrast table(2)
59 Spring CBH1838
60 Screw IMS20P030FZK
61 Cassette Mechanism Module EXK4100
62 Screw ISS26P055FUC
63 Fuse(10A) CEK1136
64 IC(IC302) TDA7384
65 Transistor(Q904) 2SD2396
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
Part No.
Mark No. Symbol and Description KEH-3930R/X1M/EW KEH-3900R/X1M/EW
29 Chassis Unit CXB4530 CXB4529
30 Detach Grille Assy CXB4850 CXB4849
32 Button(DETACH) CAC5929 CAC5789
35 Button(+ -) CAC6458 CAC6273
36 Button(SELECT) CAC6459 CAC6276
39 Cover CNS5662 CNS5661
40 Keyboard Unit CWM6813 CWM6812
47 Grille Unit CXB5840 CXB4519
57 Panel Unit CXB4929 CXB4928
58 Door CAT2108 CAT2109
(2) CONTRAST TABLE
KEH-3930R/X1M/EW and KEH-3900R/X1M/EW are constructed the same except for the following:

6
KEH-3930R,3900R
2.3 CASSETTE MECHANISM MODULE

7
KEH-3930R,3900R
1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw CBA1037
6 Spring EBH1531
7 Spring EBH1624
8 Spring EBH1625
9 Spring EBH1626
10 Spring EBH1627
11 Spring EBH1628
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) ESG1007
35 Deck Unit EWM1023
36 Plug(CN251) CKS3540
37 Gathering PCB ENX1053
38 Motor Unit(M1) EXA1491
39 Motor EXM1028
40 Head Assy(HD1) EXA1592
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 Screw CBA1250
56 Bracket ENC1542
Mark No. Description Part No. Mark No. Description Part No.
-CASSETTE MECHANISM MODULE SECTION PARTS LIST

8
KEH-3930R,3900R

9
KEH-3930R,3900R
1234
1234
D
C
B
A
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
TUNER Lch
Q476
Q472 Q474
LDET
TMUTE
B.U VDD
Q903
SYSPW
TMUTE
SYSPW
VDD
AVDD
61 55 74 68
SYSTEM
CONTROLLER
PE5088A
IC601(1/2)
TUN-L
TUN-L
ELECTRONIC VOLUME
SN761029DL
IC301 20
19
2
3
TAPE-L
RL
FL
POWER AMP
TDA7384
IC302
11
15
MUTE STBY
FL
RL
FL+
FL-
RL+
RL-
22 4
9
7
19
17
SYSPW B.U
B.U
SYSPW
Q350
Q904 Q352 Q351
Q905
Q901
Q902
MUTE
8.4V
REGULATOR
RESET
IC602
S-80834ANY
VCC
VDD
54 60
1
2
66 65
70
69
64
30
48
MUTE
RESET
BSENS
ASENS
SWVDD
DPDT
KYDT
DSENS
RIMUTE
STBY
LOADSW
X1
X2
TELIN
SYSTEM
CONTROLLER
IC601(2/2)
PE5088A
X601
Q906
BSENS
ASENS ACC
FUSE
10A
TEL MUTE
Q951
B.U
STBY
B.U
MUTE
LOAD 42
63 895
Q650
SWVDD
VDD
SW5V
ILL
KYDT
DPDT
SW5V
VDD SWITCH
5
1
4
2
1
3
4
11
9
20
19
3
4
11
9
20
19
8
2
11
10
1
7
13
ATUNER AMP UNIT
DDECK UNIT
CKEYBOARD UNIT
734 5
734 5
LCD DRIVER
IC1801
PD6293A
DPDT
KYDT
VDD
VLCD
XO
XI
X901
18
20
50 10
22 23
IC251
CXA2559Q
IC351
PA2020A
EQ AMP
MECHANISM
DRIVER
CN251
CN252
CN254
CN255
CN253
7
5TAPE+B
Lch
17
FWD
L-ch
REV
L-ch
37
36
39
18 19
17
315 6
8710
CN256 315 6
S1
LOAD
S2
MODE
EGN1
REEL
SENSE
M
M
M2
SUB
MOTOR
M1
MAIN
MOTOR
5
2
1
EREEL SENSE PCB
CN602
CN604
CN901
CN601
CN1801
VCK/VDT/VST
ACC
BACK UP
FL+
FL-
RL-
RL+
TEL MUTE
B.REMOTE
VCC
LOUT
RIMUTE
LD
STBY
B8
B5
B6
B7
A4
A7
KEY MATRIX
LCD
ANT1 TV ANT2 TV RF TV
IC 3
BR9010FV
AM 2ND IF 450kHz
ANTENNA
JACK
CN401
1
2
BFM/AM TUNER UNIT
27
28
FM FRONT END
Q3
Q201 Q204
AM RF
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51 CF52 CF53
MIXER.IF AMP DET
IC 1
PML002A
38 39 42 44 46 63
32 19
46
6
21
18
LDET
COMP
34 33 41 44 11 12 13
69
70
54
78
65
71
75746157554533
35
22
2225 10 14 12 15 16 8 13 2 3 4
CF202
VDD
LOCL
VCC
Q411
VCC VDD
DI/DO CE2 CK CE1 SDBL SL FMSD
PCE2
TUNPCK
TUNPCE
SDBW
SL
SD
PDIO
NL1 NL2
EEPROM
5
6
4
3
IC 2 PM4008A
FM MPX
25 24
NL1
Q202
32
LDET
51
RDS
DECODER
IC 701
PM4009A
20
11 12
24
X702
Q477
VDD
FM/AM FM/AM
21
78 NL1
SD
SL
SDBW
TUNPCE
TUNPCK
PCE2
TUNPDO
LOCL
53
76
10
14
13
20
12
28 TUNPDI
11
PDIO
SWVDD
A5
POWER SWITCH
1
6IC901
TPD1018F
SYSPW
8
8
DSENS
A
A

10
KEH-3930R,3900R
1234
1234
D
C
B
A
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”.
A-a A-b
A-aA-a A-bA-b
A-bA-b
A-aA-a
Large size
SCH diagram
Guide page
Detailed page
A
A-a
ANTENNA JACK
PE5088A
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.
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.
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
FM(100%) : -15.5dBs
AM(30%) : -26dBs
SYSTEM CONTROLLER
RDS DECODER
SOUR
ELECT
RESET
TAPE 315Hz(0dB)
: -7.9dBs
FM
AM
TA
A
B
E
D
TUNER AMP UNIT
FM/AM TUNER UNIT
CASSETTE MECHANISM MODULE

11
KEH-3930R,3900R
5678
5678
D
C
B
A
A-b
A
600µH
3300/16
CEK1136
TEL MUTE
2
1
4
3
7
8
5
6
13
12
11
10
B5
B6
B3
B4
B7
B8
B1
B2
A4
A7
A8
A5
>
CE SELECTOR/
TRONIC VOLUME
POWER AMP
5V REGULATOR
SWD 5V
POWER SWITCH
ACC SENSE
BACK UP SENSE
TELEPHONE MUTE
8.4V REGULATOR
OFF MUTE
SYSTEM MUTE
M: -15.5dBs
M : -26.0dBs
APE : -7.9dBs
FM: 7.5dBs
AM : -1.0dBs
TAPE : -2.9dBs
FM : 33.5dBs
AM : 25.0dBs
TAPE : 23.1dBs
C
KEYBOARD UNIT

12
KEH-3930R,3900R
1234
1234
D
C
B
A
ANTENNA JACK
FM(100%) : -15.5dBs AM(30%) : -26dBs
SYSTEM CONTROLLER
RDS DECODER
SOURCE SE ELECTRONI
RESET
FM: -15.5dB AM : -26.0dB TAPE : -7.9d
A-a
A-a A-b
A
B
TUNER AMP UNIT
FM/AM TUNER UNIT
1
2

13
KEH-3930R,3900R
5678
5678
D
C
B
A
PE5088A
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.
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.
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
SYSTEM CONTROLLER
TAPE 315Hz(0dB) : -7.9dBs
A-a
A-a A-b
E
D
CASSETTE MECHANISM MODULE
3

14
1234
1234
D
C
B
A
600µH
3300/16
CEK1136
2 1 4 3 7 8 5 6
13
B5 B6 B3 B4 B7 B8 B1 B2
A4
>
RCE SELECTOR/
TRONIC VOLUME
POWER AMP
8.4V REGULATOR
SYSTEM MUTE
M: -15.5dBs
M : -26.0dBs
APE : -7.9dBs
FM: 7.5dBs AM : -1.0dBs TAPE : -2.9dBs
FM : 33.5dBs AM : 25.0dBs TAPE : 23.1dBs
A-a A-b
A-b
1
2
KEH-3930R,3900R

15
5678
5678
D
C
B
A
TEL MUTE
12 11 10
A4 A7 A8 A5
>
5V REGULATOR
SWD 5V
POWER SWITCH
ACC SENSE
BACK UP SENSE
TELEPHONE MUTE
OFF MUTE
A-b
A-a A-b
3
KEH-3930R,3900R
C
KEYBOARD UNIT

16
KEH-3930R,3900R
1234
1234
D
C
B
A
B
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
3.3 FM/AM TUNER UNIT
B
A
FM/AM TUNER UNIT

17
KEH-3930R,3900R
5678
5678
D
C
B
A
KV1410(23)
B

18
KEH-3930R,3900R
1234
1234
D
C
B
A
LCD DRIVER,
KEY CONTROLLER
PD6293A
CAW1559
C
3.4 KEYBOARD UNIT
C
KEYBOARD UNIT

19
KEH-3930R,3900R
5678
5678
D
C
B
A
LOUD
PTY TA/AF
LOCAL/BSM
KEH-3930R/X1M/EW KEH-3900/X1M/EW
IL1801-1804 CEL1638(14V 40mA) CEL1547(14V 40mA)
C
A
CN601

20
KEH-3930R,3900R
1234
1234
D
C
B
A
DECK UNIT
MUTE
CXA2559Q
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29 28 27
26 25
24
23
22 21
1
2 3 4
5 6
7
8
9 10
R256 220
R287
0R0
C273
22/16
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
C403
R403
C402
3900P
C401
R33
R323 0R0
R257
1K
C255
R01
C272 R1
C313 100P
R286 0R0
R285 0R0
HD1
HEAD ASSY
EXA1592
TEST TAPE
NCT-150
(400Hz, 200nWb/m)
RL
RR
FR
FL
C302
R1
C301
R1
R304
R302
16K
16K
R305
16K
R303
16K
-6dBs(388mV)±1dB
Fwd-R
Fwd-L
Rev-R
Rev-L
PBFB2
PBRIN2
PBGND
PBFIN2
VCT
PBREF
PBFIN1
PBGND
PBRIN1
PBFB1
PBTC1
PBOUT1
OUTREF1 TAPEIN1 VCC
LINEOUT1
TCH1
MSLPF
MSMODE
DRSW
TAPESW
MUTESW
MSOUT
MSTC
G1FB
G2FB
PBTC2
PBOUT2
OUTREF2
TAPEIN2
GND
DIREF
LINEOUT2
TCH2
MSSW
CN252
CN251
EQ AMP
IC251
D
3.5 CASSETTE MECHANISM MODULE
D
A
CN602