Pioneer DEH-340 User manual

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-ZZD. NOV. 2001 Printed in Japan
ORDER NO.
CRT2759
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-340 XN/UC
Service
Manual
DEH-340/XN/UC
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST.......................4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12
4. PCB CONNECTION DIAGRAM ................................26
5. ELECTRICAL PARTS LIST ........................................34
6. ADJUSTMENT..........................................................41
7. GENERAL INFORMATION .......................................45
7.1 DIAGNOSIS ........................................................45
7.1.1 DISASSEMBLY .........................................45
7.1.2 CONNECTOR FUNCTION DESCRIPTION.......48
7.2 PARTS .................................................................49
7.2.1 IC................................................................49
7.2.2 DISPLAY....................................................58
7.3 OPERATIONAL FLOW CHART...........................59
7.4 CLEANING ..........................................................60
8. OPERATIONS AND SPECIFICATIONS.....................61
-This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-977 CRT2624 S9 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
DEH-3400 XN/UC
DEH-34 XN/UC
For details, refer to "Important symbols for good services" on the next page.

12
DEH-340,3400,34
A
1234
B
C
D
1234
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
VDCONT
Q510
Q511
B.U
ANTENNA CN402
LOCL
Q410
VCC VDD
PCE2
PCK
PCE1
SL
SD
PDIO
S
S
T
T
T
T
L
I
I
6
76
14
13
48
12
57
2
3
CN501
CDL
SYSTEM
CONTROLL
IC 610(2/
PE5262B
CD5VON
34
23
79
32
21
35
VDCONT
HOME
DSCSNS
LOEJ
CONT
LOEJ
CONT
T
11
PDIO
TUNER AMP UNIT
VD
CD5VON
IC 3
EEPROM
FM/AM TUNER UNIT
28
27
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51 CF52 CF53
IC1
MIXER, IF AMP, DET.
6
21
18
LDET
COMP
22
25 10 14 12 15 16 8 13 2 3 4
CF202
VDD
VCC
DI/DO CE2 CK CE1 SDBW SL FMSD NL1 NL2
IC 2 FM MPX
AMANT
FMANT
ATT
ATT
AMRF
FMRF
IMG ADJ
RF ADJ
X901
10.25MHz
ANT ADJ
LOCL
23 LOCH
AMDET
MPXREF 41kHz
AM 2ND IF
450kHz
19
CREQ
11
DGND
1
STIND
L ch
5
R ch
924
NC
FMLOCL
20177
NC NC WC
26 RFGND
CN701
Q101
M
LASER
DIODE
MONITOR
DIODE
CLAMP
SENSE
DISC
SENSE
FOCUS ACT.
SPINDLE
MOTOR
M
CARRIAGE
MOTOR
LOAD/
TRACKING ACT.
LD-
MD
FO+
TO+
15
5
1
4
PICKUP UNIT
(SERVICE)(P9)
HOLOGRAM
UNIT
IC 401
BA5996FM
IC 201
TC9495F2
IC 701
BA05SFP
+5V REGULATOR
SERVO
CONTROL,
DSP,
LPF, DAC
CD
DRIVER
17
DSCSNS
2
VD
VD
VDD
11
CONT
10
LOEJ
14
L-OUT
1
CD5VON
CN101
TOP
FOP
16 SOP
15 SOM
17 LCOP
18 LCOM 22
1
2
LOEJ
78
85
L_OUT
79
9
MUTE
12 FOP TD/FD
AC,BD
F,E
SD/MD
38 RFI
43 FEI
4
14 TOP
S901
HOME
12EJ
SENSE 8EJ
SENSE
HOME 16
LD+ 14 VDD
9LDO
8MDI
IC 101
TA2153FN
RFRPIN
FEO
TEO
24
16
14 46 TEI
RF-AMP
CONTROL UNIT
17
2
11
10
14
1
16
A
D
PCE1
PCK
PCE2

DEH-340,3400,34
5678
A
B
C
D
567813
KYDT
DPDT
IC 1900
PD6340A
5
3
8
14
11
10 KEY MATRIX
SD
SL
TUNPCE
TUNPCK
TUNPCE2
TUNPDO
LOCL
IN2_L
IN3_L
6
76
14
13
48
12
57
2
3
SYSTEM
CONTROLLER
IC 610 (1/2)
PE5262B
VST
VCK
VDT
B.U
VDD Q913
B.U BACKUP
FL-
FL+
RL-
RL+
ACC
2
1
10
12
9
11
3
ELECTRONIC VOLUME
IC 301
PML003AM
SYSTEM
CONTROLLER
IC 610(2/2)
PE5262B
ASENS 64
BSENS 63
TELIN 38
SYSPW 42
MUTE 44
KYDT 8
DPDT 9
RESET 60
SWVDD 41
Frontout_L 10
Rearout_L 11
POWER AMP
IC 361
PAL007A
14
12
22 4
5
3
21
23
FL
MUTE STBY
RL
B.U
bsens
asens Q920
Q361 MUTE
Q921
KEYBOARD UNIT
CN1901CN750
LCD
20
18
Q750
RESET
IC 603
S-80834ANY VDD
12
SYSPW
6
B.REM
FUSE
10A
N
NT
NS
TUNPDI
11
PDIO
VST/ VCK/ VDT
VDD
VDD
VLCD
56
10
CN901
Q 351
CN351
REAR L CH
Q359
BACK UP
FL-
FL+
RL-
RL+
B.REM
ACC
GND
C
PCE1
PCK
PCE2
ANTIN 52
KYDT
DPDT
SW5V
KEY CONTROL
LCD DRIVER
2
1
10
12
9
11
3
6
SYSPW
Q910 Q911
B.U
VCC
Q912
RESET
IC 603
S-80834ANY
12
VCC REGULATOR
VDD REGULATOR
14
11
10
CN1950
8
10
5
CN1951
13 13
88 S1950
EJECT
EJECTS 53
12 12
94
76
S1922 VOLUME
ROT0
ROT1
ROT0
ROT1
ROT0
ROT1
37
36
Q 341 FRONT L CH
IC1902
RS-140
4
1REM
17
REMOTE CONTROL
SENSOR
OPT IN
PANEL UNIT
B
DEH-340/XN/UC
25
S750
DSENS
Q751
B.U
Q753
B.U
Q752
99
66
55
77
44 310
CSENS
ILB+
FILM+
FILM-
EJECT
µGND
CSENS
KYDT
DPDT
IL+B
SW+5V
94
ILLUMINATION
ILLUMINATION
ILMPW 40
FLPILM 20
DSENS 64
CSENS 80

14
DEH-340,3400,34
A
1234
B
C
D
1234
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
FM(100%):-19.5dBs
AM(30%):-30dBs
DCONTROL UNIT FM/AM TUNER UNIT
A
A
CKEYBOARD UNIT
BPANEL UNIT
183 183
162 162
272
272
104 393 CSS1023 4.194MHz
0R0
R791
DSENS
EJECT
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
ANTENNA
JACK
SYST
ELECTRONIC
A-a
B

15
DEH-340,3400,34
5678
A
B
C
D
5678
A
FM(100%):+3.6dBs
AM(30%):-6.9dBs
CD:+10.2dBs
CD:+9.4dBs
FM(100%):+29.6dBs
AM(30%):+19.1dBs
CD:+36.2dBs
ATUNER AMP UNIT
RR+
RR-
FR+
FR-
FL+
FL-
RL+
RL-
ACC
GND
B.REM
BACK UP
CEK1136
>
10A
RR
FR
FL
RL
PRE OUT
600µH
EM CONTROLLER
MUTE
POWER AMP
VOLUME
VDD REGULATOR
SYS+B REGULATOR
BACK UP SENSE
ACC SENSE
VCC REGULATOR
DEH-340/XN/UC
A-b

16
DEH-340,3400,34
A
1234
B
C
D
1234
A-a
A-a A-b
FM(100%):-19.5dBs
AM(30%):-30dBs
FM/AM TUNER UNIT
183
183
162
162
272
272
3CSS1023 4.194MHz
0R0
R791
ANTENNA
JACK
SYSTEM CO
ELECTRONIC VOLU
1

17
DEH-340,3400,34
5678
A
B
C
D
5678
A-a A-b
DCONTROL UNIT
A
A-
CKEYBOARD UNIT
BPANEL UNIT
104 393
DSENS
EJECT
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
6
5
2 3 4
7
A-a
B

18
DEH-340,3400,34
A
1234
B
C
D
1234
A-a A-b
A-b
FM(100%):+3.6dBs
AM(30%):-6.9dBs
CD:+10.2dBs
CD:+9.4dBs
FM(100%):+29.6dBs
AM(30%):+19.1dBs
CD:+36.2dBs
ATUNER AMP UNIT
RR
FR
FL
RL
PRE OUT
600µH
TEM CONTROLLER
MUTE
POWER AMP
C VOLUME
DEH-340/XN/UC
1

19
DEH-340,3400,34
5678
A
B
C
D
5678
A-b
A-a A-b
FM(100%):+29.6dBs
AM(30%):+19.1dBs
CD:+36.2dBs
RR+
RR-
FR+
FR-
FL+
FL-
RL+
RL-
ACC
GND
B.REM
BACK UP
CEK1136
>
10A
VDD REGULATOR
SYS+B REGULATOR
BACK UP SENSE
ACC SENSE
VCC REGULATOR
6
5
2 3 4
7

20
DEH-340,3400,34
A
1234
B
C
D
1234
3.3 KEYBOARD UNIT
CLOC
←
←
LCD
5
DEH-340/XN/UC
SML-310PT
CSG1107
CSG1107
CSG1107
CAW1699
D1919,1920
S1900
S1901-1906
S1908-1916
LCD
DEH-3400/XN/UC
SML-310PT
CSG1107
CSG1107
CSG1107
CAW1707
DEH-34/XN/UC
SML-310DT
CSG1133
CSG1117
CSG1117
CAW1707
KEY CONTROL AND
DISPLAY DRIVER
REMOTE CON
C

DEH-340,3400,34
5678
A
B
C
D
567821
B
CN1951
CKEYBOARD UNIT
CLOCK
←
←
←
←
LOUD
BSM
NSSW440-9159 NSSW440-9159
VOLUME
5
EQ
32
SOURCE
1
46
BAND
AUDIO
LOCAL
CSG1111
CSG1111
CSD1077
E CONTROL SENSOR
C

22
DEH-340,3400,34
A
1234
B
C
D
1234
3.4 CD MECHANISM MODULE
D
M1 CXB6007
M2 CXB5903
LOADING/CARRIAGE
SPINDLE
RF AMP
S
ACT/MOTOR DRIVER
5V REGULATOR
CN101
DCONTROL UNIT
PICKUP UNIT(SERVICE)(P9)

DEH-340,3400,34
5678
A
B
C
D
567823
D
16.934MHz
SERVO CONTROL/DSP/DAC/LPF
ER
CN701
SWITCHES:
CONTROL UNIT
S901 : HOME SWITCH.....ON-OFF
S902 : CLAMP SWITCH....ON-OFF
S903 : DSCSNS SWITCH....ON-OFF
S904 : 12EJ SWITCH....ON-OFF
S905 : 8EJ SWITCH....ON-OFF
The underlined indicates the switch position.
A
CN501
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2→2R2
0.022→R022

24
DEH-340,3400,34
@CH1:BCK 2V/div.
During "Play"
1CH1:DSCSNS 5V/div.
2CH2:CLCONT 5V/div.
3CH3:LOEJ 5V/div.
4CH4:VD 10V/div.
When loading (8 cm CD)
500ms/div.
5CH1:FD 500mV/div.
6CH2:FOK 5V/div.
7CH3:MD 5V/div.
When setting up "Source On"
500ms/div.
8CH1:FE 500mV/div.
9CH2:FOON 5V/div.
When setting up "Source On"
500ms/div.
5CH1:FD 500mV/div.
6CH2:FOK 5V/div.
7CH3:MD 5V/div.
Magnified drawing for "time"
100ms/div.
1CH1:DSCSNS 5V/div.
2CH2:CLCONT 5V/div.
3CH3:LOEJ 5V/div.
4CH4:VD 10V/div.
When loading (12 cm CD)
Ref. :
GND
Mode :
Normal
Ref. :
GND
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Test
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
500ms/div.
0CH1:TE 500mV/div.
8CH2:FE 500mV/div.
When setting up "Source On"
200ms/div.
1µs/div. #CH1:LRCK 2V/div.
$CH2:DOUT 2V/div.
During "Play"
10µs/div.
7CH1:MD 500mV/div.
During "Play"
10µs/div. %CH1:RFO 500mV/div.
During "Play"
0.5µs/div. %CH1:RFO 500mV/div.
0CH2:TE 500mV/div.
During "Tracking Open"
2ms/div.
8CH1:FE 500mV/div.
5CH2:FD 500mV/div.
0CH3:TE 500mV/div.
!CH4:TD 500mV/div.
During "Play"
1ms/div.
-Waveforms
Note:1. The encircled numbers denote measuring pointes in the circuit diagram.
2. Reference voltage
VREF:2.1V

25
DEH-340,3400,34
%CH1:RFO 1V/div.
0CH2:TE 500mV/div.
&CH3:DFCT 5V/div.
During inside/outside search
200ms/div.
%CH1:RFO 1V/div.
0CH2:TE 500mV/div.
!CH3:TD 1V/div.
1 Track Jump
500µs/div.
%CH1:RFO 1V/div.
0CH2:TE 1V/div.
!CH3:TD 1V/div.
100 Track Jump
5ms/div.
%CH1:RFO 1V/div.
0CH2:TE 1V/div.
!CH3:TD 1V/div.
32 Track Jump
5ms/div.
5CH1:FD 1V/div.
^CH2:FOP 2V/div.
With no disk inserted
During "Focus Close"
200ms/div.
1CH1:DSCSNS 5V/div.
2CH2:CLCONT 5V/div.
3CH3:LOEJ 5V/div.
When "Eject" (8cm CD)
200ms/div.
)CH1:LOUT 2V/div.
⁄CH2:ROUT 2V/div.
"Play" in 1kHz, 0dB
200µs/div.
*CH1:TEY 500mV/div.
(CH2:SD 2V/div.
During inside/outside search
200ms/div. 1CH1:DSCSNS 5V/div.
2CH2:CLCONT 5V/div.
3CH3:LOEJ 5V/div.
When "Eject" (12 cm CD)
200ms/div.
%CH1:RFO 2V/div.
&CH2:DFCT 5V/div.
5CH3:FD 1V/div.
!CH4:TD 2V/div.
When reproducing black dots (800µm)
500µs/div.
Ref. :
VREF
Mode :
Test
Ref. :
VREF
Mode :
Test
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Normal
Ref. :
VREF
Mode :
Test
Ref. :
VREF
Mode :
Test
Ref. :
VREF
Mode :
Normal
Ref. :
GND
Mode :
Normal
Ref. :
GND
Mode :
Normal
Ref. :
GND
Mode :
Normal

44
DEH-340,3400,34
6.3 ERROR MODE
-Error Messages
If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the
error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the
users and also for facilitating trouble analysis and repair work in servicing.
(1) Basic Indication Method
1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN (min-
utes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO remains
in blank as before.
2) Head unit display examples
Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.
8-digit display 6-digit display 4-digit display
ERROR–xx ERR–xx E–xx
(2) Error Code List
Code Class Displayed error code Description of the code and potential cause(s)
10 Electricity Carriage Home NG CRG can't be moved to inner diameter.
SERVO LSI Com- CRG can't be moved from inner diameter.
munication Error →Failure on home switch or CRG move mechanism.
Communication error between microcomputer and SERVO LSI.
11 Electricity Focus Servo NG Focusing not available.
→Stains on rear side of disc or excessive vibrations on REWRITABLE.
12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).
Subcode NG →Failure on spindle, stains or damages on disc, or excessive vibrations.
A disc not containing CD-R data is found.
Turned over disc are found, though rarely.
CD signal error.
17 Electricity Setup NG AGC protection doesn't work. Focus can be easily lost.
→Damages or stains on disc, or excessive vibrations on REWRITABLE.
30 Electricity Search Time Out Failed to reach target address.
→CRG tracking error or damages on disc.
44 Electricity ALL Skip Skip setting for all track.
(CD-R/RW)
50 Mechanism CD On Mech Error Mechanical error during CD ON.
→Defective loading motor, mechanical lock and mechanical sensor.
A0 System Power Supply NG Power (VD) is ground faulted.
→Failure on SW transistor or power supply (failure on connector).
Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).
Unreadable TOC does not constitute an error. An intended operation continues in this case.
Upper digits of an error code are subdivided as shown below:
1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.

DEH-340,3400,34
7.1.2 CONNECTOR FUNCTION DESCRIPTION
57913
468210121416
111315
PRE OUTANTENNA
1. GND
2. BACK UP
3. ACC
4. NC
5. NC
6. B.REM
7. NC
8. NC
9. RL-
10. FL-
11. RL+
12. FL+
13. RR-
14. FR-
15. RR+
16. FR+
PRE OUTANTENNA
-DEH-340/XN/UC
-DEH-3400/XN/UC, DEH-34/XN/UC
48

49
DEH-340,3400,34
7.2 PARTS
7.2.1 IC
-Pin Functions(PE5262A)
Pin No. Pin Name I/O Format Function and Operation
1 MODEL1 I Model select input
2,3 NC Not used
4 AVSS I A/D GND
5 ST I FM stereo input
6 SD I SD input
7 AVREF1 A/D converter reference voltage
8 KYDT I Key data input
9 DPDT O C Display data output
10 SDBW I SDBW input
11 TUNPDI I PLL IC data input
12 TUNPDO O C PLL IC data output
13 TUNPCK O C PLL IC clock output
14 TUNPCE O C PLL IC chip enable output
15 currq O Tuner voltage FIX output
16 LOCL O C Local L output
17 NC Not used
18 fm/AM O C FM/AM power select output
19 NC Not used
20 FLPILM O C Inside of flap illumination output
21 VDCONT O C VD control output
22 NC Not used
23 CONT O C Servo driver power supply control output
24 XCE O C CD LSI chip enable output
25 xrst O C CD LSI reset output
26 XPCK O C CD LSI clock output
27-30 XPI0-3 I/O C CD LSI data input/output
31 CLCONT O C Driver input select output
32 HOME I C Home position detector input
33 VSS GND
34 LOEJ O C CD load motor LOAD/EJECT direction exchange output
35 CD5VON O C CD +5V power supply control output
36,37 ROT1-0 I Rotary encoder data input
38 TELIN I Telephone mute input
39 NC Not used
40 ILMPW O C Illumination power supply control output
41 swvdd O C Keyboard unit power supply control output
42 SYSPW O C System power supply control output
43 VST O C Strobe pulse output for electronic volume
44 mute O C System mute output
45 PEE O C Beep tone output
46 LOCH O C Local H output
47 NC Not used
48 TUNPCE2 O C EEPROM chip enable output
49 PCL O C Clock adjustment output
50 VCK O C Clock output for electronic volume
51 VDT O C Data output for electronic volume
52 ANTPW O Antenna output
53 EJECTS I Eject key input pin
54 DALMON O C Stand-by output
55–59 NC Not used
60 reset I Reset input
61,62 NC Not used
63 bsens I Back up power sense input
64 asens I ACC power sense input
65 dsens I Grille detach sense
66 ADPW O C A/D converter power supply output
67 NC Not used

50
DEH-340,3400,34
Pin No. Pin Name I/O Format Function and Operation
68 VDD Power supply
69 X2 Crystal oscillator connection pin
70 X1 I Crystal oscillator connection pin
71 IC(VPP) Connect to GND
72 NC Not used
73 TESTIN I Test program mode input
74 AVDD Positive power supply terminal for analog circuit
75 AVREF0 A/D converter reference voltage
76 SL I SD level input from tuner
77 TEMP I CD temperature sense input
78 VDSENS I VD power supply voltage sense input
79 DISCSNS I CD DISC sense input
80 CSENS I Flap open/close sense input
80
1
20
21 40
41
60
61
*PE5262A
IC's marked by * are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
Output Format Meaning
C C MOS output

51
DEH-340,3400,34
-Pin Functions (PD6340A)
Pin No. Pin Name I/O Function and Operation
1-5 SEG4-0 O LCD segment output
6-9 COM3-0 O LCD common output
10 VLCD LCD drive power supply
11-14 KST3-0 O Key strobe output
15,16 KDT0,1 I Key data input (analogue input)
17 REM I Remote control reception
18 DPDT I Display data input
19 NC Not used
20 KYDT O Key data output
21 MODA GND
22 X0 Crystal oscillator connection pin
23 X1 Crystal oscillator connection pin
24 VSS GND
25,26 KDT2,3 I Key data input
27 NC Not used
28 KST4 O Key strobe output
29-32 NC Not used
33-55 SEG35-13 O LCD segment output
56 VDD Power supply
57-64 SEG12-5 O LCD segment output
*PD6340A
49
48
33
32
17
16
1
64