Pioneer DEH-34 Page 14 Service Manual Download

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DEH-340,3400,34

CH1:BCK

2V/div.

During "Play"

CH1:DSCSNS

5V/div.

CH2:CLCONT

5V/div.

CH3:LOEJ

5V/div.

CH4:VD

10V/div.

When loading (8 cm CD)

500ms/div.

CH1:FD

500mV/div.

CH2:FOK

5V/div.

CH3:MD

5V/div.

When setting up "Source On"

500

s/div.

CH1:FE

500mV/div.

CH2:FOON 5V/div.

When setting up "Source On"

500ms/div.

CH1:FD

500mV/div.

CH2:FOK

5V/div.

CH3:MD

5V/div.

Magnified drawing for "time"

100ms/div.

CH1:DSCSNS

5V/div.

CH2:CLCONT

5V/div.

CH3:LOEJ

5V/div.

CH4: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.

CH1:TE

500mV/div.

CH2:FE

500mV/div.

When setting up "Source On"

200ms/div.

1µs/div.

CH1:LRCK

2V/div.

CH2:DOUT 2V/div.

During "Play"

10µs/div.

CH1:MD

500mV/div.

During "Play"

10µs/div.

CH1:RFO

500mV/div.

During "Play"

0.5µs/div.

CH1:RFO

500mV/div.

CH2:TE

500mV/div.

During "Tracking Open"

2ms/div.

CH1:FE

500mV/div.

CH2:FD

500mV/div.

CH3: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

Summary of Contents for DEH-34

Page 1: ...TION 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 s...

Page 2: ...MRF 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 9 24 NC FMLOCL 20 17 7 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...

Page 3: ...N750 LCD 20 18 Q750 RESET IC 603 S 80834ANY VDD 1 2 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 1 2 VCC REGULATOR VDD REGULATOR 14 11 10 CN1950 8 10 5 CN1951 13 13 8...

Page 4: ...e page Detailed page A FM 100 19 5dBs AM 30 30dBs D CONTROL UNIT FM AM TUNER UNIT A A C KEYBOARD UNIT B PANEL 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 1...

Page 5: ... 2dBs CD 9 4dBs FM 100 29 6dBs AM 30 19 1dBs CD 36 2dBs A TUNER 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 ...

Page 6: ...16 DEH 340 3400 34 A 1 2 3 4 B C D 1 2 3 4 A a A a A b FM 100 19 5dBs AM 30 30dBs FM AM TUNER UNIT 183 183 162 162 272 272 3 CSS1023 4 194MHz 0R0 R791 ANTENNA JACK SYSTEM CO ELECTRONIC VOLU 1 ...

Page 7: ...PANEL 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 ...

Page 8: ...A 1 2 3 4 B C D 1 2 3 4 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 A TUNER AMP UNIT RR FR FL RL PRE OUT 600µH TEM CONTROLLER MUTE POWER AMP C VOLUME DEH 340 XN UC 1 ...

Page 9: ... 34 5 6 7 8 A B C D 5 6 7 8 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 ...

Page 10: ...LOC 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 ...

Page 11: ...DEH 340 3400 34 5 6 7 8 A B C D 5 6 7 8 21 B CN1951 C KEYBOARD UNIT CLOCK LOUD BSM NSSW440 9159 NSSW440 9159 VOLUME 5 EQ 3 2 SOURCE 1 4 6 BAND AUDIO LOCAL CSG1111 CSG1111 CSD1077 E CONTROL SENSOR C ...

Page 12: ...22 DEH 340 3400 34 A 1 2 3 4 B C D 1 2 3 4 3 4 CD MECHANISM MODULE D M1 CXB6007 M2 CXB5903 LOADING CARRIAGE SPINDLE RF AMP S ACT MOTOR DRIVER 5V REGULATOR CN101 D CONTROL UNIT PICKUP UNIT SERVICE P9 ...

Page 13: ...1 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 ...

Page 14: ...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 0 CH1 TE 500mV div 8 CH2 FE 500mV div When setting up Source On 200ms div 1µs div CH1 LRCK 2V div CH2 DOUT 2V div During Play 10µs div 7 CH1 MD 500mV div During Play ...

Page 15: ... DSCSNS 5V div 2 CH2 CLCONT 5V div 3 CH3 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 1 CH1 DSCSNS 5V div 2 CH2 CLCONT 5V div 3 CH3 LOEJ 5V div When Eject 12 cm CD 200ms div CH1 RFO 2V div CH2 DFCT 5V div 5 CH3 FD 1V div CH4 TD 2V div When reproducing black dots 800µm 500µs ...

Page 16: ...echanism 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 ...

Page 17: ...FUNCTION DESCRIPTION 5 7 9 1 3 4 6 8 2 10 12 14 16 11 13 15 PRE OUT ANTENNA 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 OUT ANTENNA DEH 340 XN UC DEH 3400 XN UC DEH 34 XN UC 48 ...

Page 18: ... 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 contro...

Page 19: ...ower 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 damag...

Page 20: ...put 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...

Page 21: ...g error signal generation amplifier output terminal 15 SBAD O Sub beam addition signal output terminal 16 FEO O Focus error signal generation amplifier output terminal 17 FEN I Focus error signal generation amplifier reverse phase input terminal 18 SEB I RFRP generation circuit mode switching terminal 19 VRO O Reference voltage VREF output terminal 20 RFRP O Signal generation amplifier output term...

Page 22: ...bit DAC zero detection flag output terminal 28 PDO O Phase error signal issue between the EFM and PLCK signals 29 TMAXS O TMAX detection result output terminal 30 TAMX O TMAX detection result output terminal 31 LPFN I Reverse input terminal of amplifier for lowpass filter 32 LPFO O Output terminal of amplifier for lowpass filter 33 PVREF PLL system only VREF terminal 34 VCOREF I VCO center frequen...

Page 23: ...terminal 5 V 77 XVSS Ground terminal for system clock oscillator circuit 78 XI I System clock oscillator circuit input terminal 79 XO O System clock oscillator circuit output terminal 80 XVDD For system clock oscillator circuit power supply terminal 81 DVSR R channel D A converting unit power supply terminal 82 RO O R channel data forward rotation output terminal 83 DVDD D A converting unit power ...

Page 24: ... for CH1 CH2 and CH3 at Power stage 11 VO1 Driver CH1 Negative output 12 VO1 Driver CH2 Positive output 13 VO2 Driver CH2 Negative output 14 VO2 Driver CH2 Positive output 15 VO3 Driver CH2 Positive output 16 VO3 Driver CH2 Negative output 17 VO4 Driver CH4 Positive output 18 VO4 Driver CH4 Negative output 19 POWVCC2 Power supply pin for CH4 at Power stage 20 GND Ground pin 21 CNT Control pin 22 L...

Page 25: ...6 AC GND 17 OUT3 18 P GND3 19 OUT3 20 VCC 21 OUT4 22 MUTE 23 OUT4 24 P GND4 SWITCH 25 Offset Detection Offset Detection Offset Detection Offset Detection Protector Over current limit sw_vcc stby Protector Short circuit Mute circuit amp_vcc Stand by Circuit Protector Over voltage sw_vcc Protector Thermal Reference amp_vcc PAL007A ...

Page 26: ...led up to the VDD at 47kΩ 16 CE1 I chip enable 1 AF RF chip enable Active at High To be grounded at 47kΩ 17 NC Not used 18 LDET O lock detector Active at Low To be pulled up to the VDD at 47kΩ 19 CREQ I current request Active at Low To be grounded at 47kΩ 20 NC Not used 21 COMP O composite signal FM composite signal output r out 100Ω 22 VCC power supply Analog section power supply pin DC 8 4V 0 3V...

Page 27: ...36 1 COM1B COM2E COM3B COM2D COM3A COM2C COM0A COM2B COM1A COM2A COM0B COM1B COM2E COM3B COM2D COM3A COM2C COM0A COM2B COM1A COM2A COMMON SEGMENT 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 21 1 47 46 45 44 43 42 41 39 38 50 49 48 40 51 7 2 2 DISPLAY CAW1699 DEH 340 XN UC CAW1707 DEH 3400 XN UC DEH 34 XN UC ...

Page 28: ... to each source operation SYSPW H Pin 42 Starts communication with Grille microcomputer Source ON 300ms 300ms In case of the above signal the communication with Grille microcomputer may fail If the time interval is not 300msec the oscillator may be defective CSENS Pin 80 2V CSENS 4V CSENS 2V 3V CSENS Source returns to the original one before you open CD loading functions are available Keys except ...

Page 29: ...4 CLEANING Before shipping out the product be sure to clean the following portions by using the prescribed cleaning tools Portions to be cleaned Cleaning tools CD pickup lenses Cleaning liquid GEM1004 Cleaning paper GED 008 ...

Page 30: ...SOURCE button This unit is switched on by selecting a source Press to cycle through all of the available sources 0 EQ button Press to select various equalizer curves VOLUME Rotate to increase or decrease the volume CLOCK button Press to switch clock display on or off Remote control A remote controller that enables remote operation of the head unit is supplied Operation is the same as when using th...

Page 31: ... 4 1 Press SOURCE to select the tuner 2 Use VOLUME to adjust the sound level Rotate to increase or decrease the volume 3 Press BAND to select a band Press BAND until the desired band is dis played F1 F2 F3 for FM or AM 4 To perform manual tuning press 2 or 3 with quick presses The frequencies move up or down step by step 5 To perform seek tuning press and hold 2 or 3 for about one second and relea...

Page 32: ...mati cally cancelled Pausing CD playback Pause lets you temporarily stop playback of the CD 1 Press 6 to turn pause on PAUSE appears in the display Play of the current track pauses 2 Press 6 to turn pause off Play will resume at the same point that you turned pause on Introduction of audio adjust ments 1 AUDIO display Shows the audio adjustments status 2 LOUD indicator Appears in the display when ...

Page 33: ...ting loudness Loudness compensates for deficiencies in the low and high sound ranges at low vol ume 1 Press AUDIO to select LOUD Press AUDIO until LOUD appears in the dis play 2 Select LOUD on or off with 5 3 Select the desired level with 2 3 LOW low MID mid HI high Note You can also switch LOUD on or off by pressing the LOUDNESS Front image enhancer FIE The F I E Front Image Enhancer function is ...

Page 34: ...ed by ignition switch 12 V DC ON OFF Right Front speaker Rear speaker White Gray White black Green Green black Gray black Violet Violet black Front speaker Rear speaker Left Front speaker Front speaker Left Rear speaker Rear speaker Right Connecting cords with RCA pin plugs sold separately Blue white To system control terminal of the power amp or Auto antenna relay control terminal max 300 mA 12 V...

Page 35: ... 11 dB 100 Hz 11dB 10 kHz volume 30 dB CD player System Compact disc audio system Usable discs Compact disc Signal format Sampling frequency 44 1 kHz Number of quantization bits 16 linear Frequency characteristics 5 20 000 Hz 1 dB Signal to noise ratio 94 dB 1 kHz IHF A network Dynamic range 92 dB 1 kHz Number of channels 2 stereo FM tuner Frequency range 87 9 107 9 MHz Usable sensitivity 9 dBf 0 ...

Page 36: ... etc which are not shown in this manual refer to the following manual s Model No Order No Mech Module Remarks DEH 340 XN UC CRT2759 CX 977 CRT2624 S9 CD Mech Module Circuit Description Mech Description Disassembly EXPLODED VIEWS AND PARTS LIST PACKING Page 4 PACKING SECTION PARTS LIST Non spare part Part No Mark No Symbol and Description DEH 340 XN UC DEH 340 XM UC 1 5 Polyethylene Bag CEG1116 Not...

Page 37: ...IOR DEH 340 XN UC Page 6 EXTERIOR SECTION PARTS LIST Part No Mark No Symbol and Description DEH 340 XN UC DEH 340 XM UC 11 Holder CNC8659 CXB6681 Holder Unit EXTERIOR DEH 3400 XN UC DEH 34 XN UC Page 8 EXTERIOR SECTION PARTS LIST Part No Mark No Symbol and Description DEH 3400 XN UC DEH 3400 XM UC 11 Holder CNC8659 CXB6681 Holder Unit EXTERIOR SECTION PARTS LIST Part No Mark No Symbol and Descript...

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