Service Manual

MULTI-CD/DAB CONTROL HIGH POWER CD/MP3/WMA PLAYER WITH RDS TUNER

ORDER NO.

CRT2846

DEH-P8400MP

- This service manual should be used together with the following manual(s):
Model No. CX-3007 Order No. CRT2820
Mech. Module Remarks S9MP3 CD Mech. Module:Circuit Description, Mech.Description, Disassembly

CONTENTS

1. 2. 3. 4. 5. 6. SAFETY INFORMATION..3 EXPLODED VIEWS AND PARTS LIST..4 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.12 PCB CONNECTION DIAGRAM..32 ELECTRICAL PARTS LIST..42 ADJUSTMENT...49 7. GENERAL INFORMATION..59 7.1 DIAGNOSIS...59 7.1.1 DISASSEMBLY...59 7.1.2 CONNECTOR FUNCTION DESCRIPTION.68 7.2 PARTS...69 7.2.1 IC...69 7.2.2 DISPLAY..84 7.3 OPERATIONAL FLOW CHART..85 7.4 CLEANING...85 8. OPERATIONS AND SPECIFICATIONS.86
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 2002
K-ZZY. FEB. 2002 Printed in Japan
[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.
- CD Player Service Precautions
1. For pickup unit(CXX1550) handling, please refer to"Disassembly"(see page 59) During replacement, handling precautions shall be taken to prevent an electrostatic discharge(protection by a jumper-solder). 2. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a connector is plugged or unplugged. 3. Please checking the grating after changing the service pickup unit(see page 53).

29 Remote Control Assy

- Owner's Manual, Installation Manual
Part No. CRD3565 CRD3566 CRB3567 CRD3568 Language English, Spanish German, French Italian, Dutch English, Spanish, German, French, Italian, Dutch

2.2 EXTERIOR(1)

- EXTERIOR(1) SECTION PARTS LIST
Mark No. Description 45 Screw Screw Screw Screw Screw Cord Assy Fuse(10A) Cap Cap Resistor Flat Cable Cord Assy Antenna Cable Holder Holder Holder Cushion Insulator Panel Tuner Amp Unit Screw Screw Clamper Clamper Plug(CN981) Plug(CN811) Plug(CN291) Plug(CN101) Connector(CN832) Connector(CN831) Connector(CN351) Connector(CN723) Pin Jack(CN402) Holder Holder Holder Heat Sink FM/AM Tuner Unit Holder Case Unit Remote Control Assy Cover Part No. BMZ26P040FMC BSZ26P060FMC BSZ30P050FZK BSZ30P080FMC BSZ30P160FMC CDE6562 CEK1136 CKX-003 CNS1472 RS1/2PMF102J CDE7021 CDE7025 CDH1266 CNC6469 CNC8659 CNC9708 CNM4870 CNM7543 CNS6863 CWM8041 ASZ26P080FMC BMZ26P140FMC CEF1008 CEF1009 CKM1278 CKS-787 CKS1049 CKS1058 CKS1082 CKS2211 CKS3606 CKS3835 CKX1046 CNC5399 CNC9711 CNC9713 CNR1615 CWE1562 CNC8815 CXB8524
CZX3257 CZN7655 CD Mechanism Module(S9MP3) CXK5556 IC(IC301) PAL007A Screw ISS26P055FUC 2SD2396

46 Transistor(Q752,921)

2.3 EXTERIOR(2)
For lubricants points, please refer to"Disassembly"(see page 59)
- EXTERIOR(2) SECTION PARTS LIST
Mark No. Description 3,46 Screw Screw Screw(M2x2) Holder Flexible PCB Keyboard Unit(OEL) Connector(CN1801) Holder Tape Holder OEL Unit Sub Grille Assy Case Unit Detach Grille Assy Screw Button(EJECT) Button(OPEN/BAND) Button(SRC/TEXT/TA) Button(1-6) Button(CROSS) Button(EQ) Spring Insulator Sheet Lighting Conductor Arm Keyboard Unit(LCD) LCD(LCD1901) Connector(CN1901) Holder Sheet Lighting Conductor Connector Grille Unit Knob Assy Spring Screw(M2x2) Screw Spring Cushion Arm Guide Guide Flexible PCB Part No. BPZ20P060FMC BPZ20P080FZK CBA1250 CNC9800 CNP6498 CWM8050 CKS4175 CNC9649 CNM7514 CNV6916 MXS8018 CXB9361 CXB7967 CXB8091 BPZ20P080FZK CAC7241 CAC7242 CAC7243 CAC7246 CAC7247 CAC7248 CBH2543 CNM7649 CNM7824 CNV6913 CNV6963 CWM8055 CAW1704 CKS4549 CNC9648 CNM7512 CNV6914 CNV6915 CXB7940 CXB8026 CBL1321 CBA1250 CBA1561 CBH2530 CNM7551 CNV6962 CNV6967 CNV6968 CNP6869 Mark No. Description Screw Case Unit Cover Unit Spring Cushion Panel Unit Drive Unit Screw Screw(M2x3) Screw(M2x2) Screw(M2x1.4) Spring Spring Spring Cord Holder Holder Gear Gear Gear Gear Lever Switch(S951) Spring Switch(S952) Switch(S953) Chassis Unit Holder Unit Holder Unit Arm Unit Arm Unit Arm Unit Arm Unit Arm Unit Arm Unit Motor Unit(M951) Gear Unit Washer Screw Sheet PCB Part No. ISS26P055FUC CXB7968 CXB8127 CBH2545 CNM7550 CXB7953 CXB8138 BMZ26P040FMC CBA1061 CBA1250 CBA1562 CBH2525 CBH2526 CBL1557 CDE6737 CNC9678 CNC9679 CNV6932 CNV6933 CNV6935 CNV6936 CNV6937 CSN1051 CSN1052 CSN1058 CXB7956 CXB7959 CXB7960 CXB7961 CXB7962 CXB7963 CXB7964 CXB7965 CXB7966 CXB8939 CXB8940 YE15FUC CBA1559 CNM7839 CNX3607 CWS1370

87 Switch Unit

2.4 CD MECHANISM MODULE
- CD MECHANISM MODULE SECTION PARTS LIST
Mark No. Description 45 CD Core Unit(S9MP3) Connector(CN901) Connector(CN101) Screw Screw Screw(M2x4) Screw(M2x3) Screw Washer Washer Washer Washer Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Shaft Roller Frame Lever Lever Arm Arm Arm Bracket Frame Belt Gear Gear Gear Gear Gear Part No. CWX2618 CKS4188 CKS3486 BMZ20P025FMC BSZ20P040FMC CBA1362 CBA1527 CBA1545 CBF1037 CBF1038 CBF1039 CBF1060 CBH2378 CBH2379 CBH2514 CBH2533 CBH2382 CBH2383 CBH2384 CBH2527 CBH2386 CBH2537 CBH2390 CBH2391 CBH2523 CBH2426 CBH2444 CBL1561 CBL1553 CLA3845 CLA3910 CNC9654 CNC9664 CNC8949 CNC9661 CNC9016 CNC9017 CNC9123 CNC9656 CNT1086 CNV6886 CNV6316 CNV6317 CNV6318 CNV6319 Mark No. Description Gear Arm Arm Arm Arm Arm Guide Arm Guide Rack Clamper Arm Guide Cover Arm Guide Roller Damper Damper Guide Chassis Unit Arm Unit Arm Unit Arm Unit Motor Unit(M2) Screw Unit Gear Unit Bracket Unit Motor Unit(M1) Arm Unit Screw(M2x5) Screw Screw Washer Washer Part No. CNV6320 CNV6322 CNV6323 CNV6324 CNV6888 CNV6889 CNV6327 CNV6924 CNV6921 CNV6923 CNV6331 CNV6332 CNV6333 CNV6334 CNV6335 CNV6336 CNV6338 CNV6175 CNV6662 CNV6925 CXB7980 CXB7983 CXB7984 CXB7985 CXB5903 CXB5904 CXB8076 CXB7982 CXB6007 CXB8504 EBA1028 JFZ20P020FMC JGZ17P020FZK YE15FUC YE20FUC
Pickup Unit(Service)(P9MP3) CXX1550
Screw Guide Roller Spring
IMS26P030FMC CNV6922 CNV6887 CBH2509 CBH2512 CBH2536 CNV6906
86 Spring 87 Spring 88 Collar
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A TUNER AMP UNIT

FM/AM TUNER UNIT

Q434 Q431 Q433

ANT AMANT 28 ATT

FM/AM 1ST IF 10.7MHz CF52 CF53 T51 Q51 CF51

MPXREF 41kHz AMDET

IC 2 FM MPX

L ch R ch

6 Q20 8

RDS DECODER 24

IC 431 PM4009A

ANT1 ADJ

IC1 MIXER, IF AMP, DET.

TUNPDO ASENBO

ACC SENSE

83 VDD RX IPPW Q951

ILL SENSE

ILL 3 ILM TELMUTE MUTE

TELEPHONE MUTE

GND TUN L USL+ USLEL DL 42 IN3-L 43 IN4+L 44 IN4-L 40 IN1-L 41 IN2-L
ELECTRONIC VOLUME/ SOURCE SELECTOR

POWER AMP

FL- IC 301 FL+ PAL007A RL- RL+ STBY B.REMOTE FLFL+ RLRL+ B.REM 4 FLFL+ RLRL+ B.REM

IC 131 PML009A

MIC_IN 13

FLIN RLIN MUTE 22

VST,VCK,VDT BU SYS+B Q301 MUTE SYSPW XOUT X601 Q501 SYSPW Q923 ILL BACK UP B. REM Q503

SYS+B REGULATOR

Q921 Q922 BU RR FR FL RL RR + FR + FL + RL +

GND ACC

TEM CONTROLLER

IC 601(2/2) PD5740A

OEL+B REGULATOR
Q871 BU Q872 DPDT1 KYDT1 OELPW DPDT1 KYDT1 SWVDDQILM+B7 VDD2 SWVDD5V 6

B KEYBOARD UNIT(OEL)

IC 871 NJM2360M
1 OEL+B OEL+B Q1806 DPDT2 KYDTSWVDD5V2 IC 1806 TC7SET08FU X1 IC 1805 S-818A33AUC-BGN Q1801 3.3V 13 XIN Q1807 8

OEL UNIT

GRILLE -COM

DPDT KYDT XOUT

IC 1802 PD8091A

IC 1801 PD5745A

ILM+B2
RESET 2 IC 651 S-80735ANDZI VDD

CN1801 KEY MATRIX

F CONNECTOR PCB C KEYBOARD UNIT(LCD)

ILM+B REGULATOR

Q962 BU Q963 Q651 RST5 RST 17 DPDT KYDT REM DPDT KYDT

ILM+B 4 4

CN1901

ILM+B SW5V RESET

IC 1901 RS-140

OPT IN

IC 1902 PD6340A

XO XI 22 X1901 23

ILMPW2

DPDT2 KYDT2 Q971

DPDT2 KYDT2 SWVDD2

SWVDD5

SWVDD5V

VDD Q972

KEY MATRIX
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

Large size SCH diagram

Guide page

VD REG TEL IN TEL IN
The > mark f the importanc Therefore, wh identical desig

Detailed page

D CN901
FM:-16.5dBs AM:-27.0dBs IP-BUS:+2.2dBs CD:0.0dBs

FM(100%):-15.5dBs AM(30%):-26.0dBs

SYSTEM C

FLAP MOTOR AND SENSE SW VDD OEL+B REG

RDS DECODER

CSN1052 (CLOSE)

CSN1051 (OPEN)

CSN1058 (EJECT)
M951 AUTOMATIC FLAP CXB8939

B CN1801

k found on some component parts indicates nce of the safety factor of the part. when replacing, be sure to use parts of signation.

SPECTRUM ANALYSER HI-OUT

ASL OL

RCA OUT

REAR R CH REAR L CH FRONT R CH SUB WOOFER L CH SUB WOOFER R CH FRONT L CH
FM:+4.6dBs AM:-3.9dBs IP-BUS:+8.3dBs CD:+8.1dBs
FM:+12.1dBs AM:+3.6dBs IP-BUS:+15.8dBs CD:+15.6dBs

PAL007A

5V REG FM:+30.6dBs AM:+22.1dBs IP-BUS:+34.3dBs CD:+34.1dBs

CONTROLLER

SYS+B REG
CEK1136 10A GND ILL B.REM ACC

BACKUP

VDD REG
RL FL RL+ FL+ RR FR RR+ FR+

MUTE SENSE

RR BACK UP FR B. REM FL RL -

RR + FR + FL + RL +

TEL MUTE SW VDD

BL+B REG

ILM+B REG
NOTE : 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.
Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022

TEL IN

The > ma the importa Therefore, identical de

VD REG TEL IN

5.5dBs 6.0dBs

E-V IP-BUS DRIVER

SYSTEM
FLAP MOTOR AND SENSE SW VDD OEL+B REG RDS DECODER
SPECTRUM ANALYSER ASL HI-OUT
MUTE FM:+12.1dBs AM:+3.6dBs IP-BUS:+15.8dBs CD:+15.6dBs POWER AMP
e > mark found on some component parts indicates e importance of the safety factor of the part. erefore, when replacing, be sure to use parts of ntical designation.

2 PAL007A

RESET 5V REG FM:+30.6dBs AM:+22.1dBs IP-BUS:+34.3dBs CD:+34.1dBs

CEK1136 10A BACKUP

SYSTEM CONTROLLER >

CEK1136 10A GND

AM:+22.1dBs IP-BUS:+34.3dBs CD:+34.1dBs

B.REM ACC

BACK UP

RL+ FL+ RR FR RR+ FR+

RR FR ILL B. REM FL GND ACC RL RR + FR + FL + RL +
TEL MUTE SW VDD BL+B REG ILM+B REG

3.3 KEYBOARD UNIT(OEL)

KEYBOARD UNIT(OEL)

PD8091A

MXS8018

3.4 KEYBOARD UNIT(LCD)

VOLUME

REMOTE CONTROL SENSOR

CONNECTOR PCB

KEYBOARD UNIT(LCD)

3.5 CD MECHANISM MODULE(GUIDE PAGE)

F T C S

SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE

3300P R022

F T T F
SWITCHES: CD CORE UNIT(S9MP3) 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.

SPINDLE MOTOR M1 CXB6007

S S C C F F T T S S C C
LOADING/CARRIAGE MOTOR M2 CXB5903

PD9023A

CD CORE UNIT (S9MP3)

D-a D-b

Da Db A

D-a D-a

F T T F F T F T F F
SWITCHES: CD CORE UNIT(S9MP3) 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.

S F T T

LOADING/CARRIAGE MOTOR M2 CXB5903 PD9023A

* & 4

Note:1. The encircled numbers denote measuring points in the circuit diagram. 2. Reference voltage REFO1 : 1.65V

- Waveforms

CH1:DSCSNS 5V/div. CH2:CLCONT 5V/div. 500ms/div. CH3:LOEJ 5V/div. CH4:VD 10V/div. When loading a 12cm CD 5 CH1:SIN 1V/div. CH1:DSCSNS 5V/div. 6 CH2:CIN 500mV/div. 2s/div. CH2:CLCONT 5V/div. 500ms/div. 7 CH3:TIN 500mV/div. CH3:LOEJ 5V/div. When setting up after loading a CH4:VD 10V/div. 12cm CD-DA disc When loading an 8cm CD Ref. : REFO Mode : Normal

Ref. : GND Mode : Normal

5 CH1:SIN 1V/div. 6 CH2:CIN 500mV/div. 2s/div. 7 CH3:TIN 500mV/div. When setting up after loading a 12cm CD-ROM(1 session)
5 CH1:SIN 1V/div. 8 CH1:FIN 200mV/div. 6 CH2:CIN 500mV/div. 2s/div. 9 CH2:RFOK 2V/div. 500ms/div. 7 CH3:TIN 500mV/div. 5 CH3:SIN 2V/div. When setting up after loading a When setting up "Source On" 12cm CD-ROM(2 session) (12cm CD-DA)
Ref. : REFO Mode : Normal

0 CH1:TE ! CH2:FE

500mV/div. ! CH1:FE 500mV/div. ! CH1:FE 500mV/div. 200ms/div. 500mV/div. 8 CH2:FIN 500mV/div. 8 CH2:FIN 500mV/div. 20ms/div. 20ms/div. 0 CH3:TE 500mV/div. 0 CH3:TE 500mV/div. When setting up "Source On" 7 CH4:TIN 500mV/div. 7 CH4:TIN 500mV/div. During "Play" (CD-DA) During "Play"(CD-ROM, generating 1Track
Jump periodically) Refer to "1Track Jump."

@ CH1:MDX 5 CH2:SIN

500mV/div. 1V/div.

5ms/div.

Spindle waveform during "Play"
# CH1:RFAGC 500mV/div. @ CH1:MDX 500mV/div. 5s/div. 5 CH2:SIN 1V/div. RF eye pattern Spindle waveform during "Play" (Magnified)

5s/div.

8 CH1:FIN ! CH2:FE
500mV/div. 200ms/div. 500mV/div.
0 CH1:TE 500mV/div. # CH2:RFAGC 500mV/div.

2ms/div.

# CH1:RFAGC 1V/div. 0 CH2:TE 500mV/div. 500s/div. 7 CH3:TIN 500mV/div. 1Track Jump
Focus Search When "Tracking Open"

Ref. : REFO Mode : TEST

# CH1:RFAGC 1V/div. 0 CH2:TE 500mV/div. 7 CH3:TIN 500mV/div. 32Track Jump
# CH1:RFAGC 1V/div. 1ms/div. 0 CH2:TE 500mV/div. 7 CH3:TIN 500mV/div. 100Track Jump

# 5ms/div. 8

CH1:RFAGC 1V/div. CH2:TIN 1V/div. CH3:TE 1V/div. CH4:FIN 1V/div.

500s/div.

When reproducing black dots(800m)
CH1:RFAGC 1V/div. CH2:TE 1V/div. 500s/div. CH3:CIN 500mV/div. CH4:SIN 2V/div.
During inside/outside search (outer circumference inner circumference)
$ CH1:LRCKIN 2V/div. % CH2:DIN 2V/div. ^ CH3:SCKIN 2V/div. Digital Audio
$ CH1:LRCKIN 2V/div. 2V/div. 10s/div. % CH2:DIN ^ CH3:SCKIN 2V/div. Digital Audio (Magnified)

2s/div.

& CH1:LOUT 1V/div. * CH2:ROUT 1V/div.

200s/div.

1 CH1:DSCSNS 2 CH2:CLCONT 3 CH3:LOEJ

5V/div. 5V/div. 5V/div.

10s/div.
Analog Audio (Magnified) When "Eject" (12cm CD) When "Eject" (8cm CD)
Ref. : AGND Mode : Normal
4. PCB CONNECTION DIAGRAM

4.1 TUNER AMP UNIT

NOTE FOR PCB DIAGRAMS A
1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2.Viewpoint of PCB diagrams

TUNER AMP UNIT

CORD ASSY

ANTENNA CABL 15

Connector

Capacitor

SIDE A

P.C.Board

Chip Part

SIDE B

RCA OUT 111 TEL IN

CN1801

A CABLE FM/AM TUNER UNIT

IP-BUS 1

4.2 KEYBOARD UNIT(OEL)

DISP ENT

IC,Q ADJ

4.3 KEYBOARD UNIT(LCD)

6 RESET BAND

TA OPEN

4.4 CD MECHANISM MODULE

DSCSNS

M2 LOADING /CARRIAGE MOTOR M1 SPINDLE MOTOR

4.5 SWITCH PCB

OPEN S953

CLOSE EJECT

YELLOW

GREEN BLACK

4.6 CONNECTOR PCB

5. ELECTRICAL PARTS LIST

NOTES: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------Part No. ------------------------=====Circuit Symbol and No.===Part Name --- ----------------------------------------------Q Q Q Q Q D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D ZNR L L L L L L L L L L L L L L L X X 601 Transistor Transistor Transistor Transistor Transistor Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Network Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Surge Protector Ferri-Inductor Inductor Inductor Inductor Inductor Inductor Inductor Ferri-Inductor Ferri-Inductor Inductor Inductor Inductor Inductor Inductor Inductor Crystal Resonator 3.648MHz Radiator 10.00MHz Part No. ------------------------2SC2412K 2SD1767 IMD2A 2SB808 DTC114EK RB706F-40 1SR139-400 DAN202U HZS9L(A2) 1SS133 HZS9L(B1) HZS7L(B2) 1SS133 1SS133 DAN202U DAP202U DAN202U DAP202U DAN202U DAP202U DA204U HZS6L(A2) HZS9L(A1) RB411D HZS11L(A1) HZS6L(B1) 1SR139-400 HZS6L(B2) HZS9L(B3) HZS7L(C3) HZS7L(A1) 1SR139-400 DAN202U HZS11L(A1) 1SR139-400 1SR139-400 1SR139-400 DSP-201M-A21F LAU2R2K LCTB4R7K2125 LAU1R0K LAU100K CTF1529 CTF1378 CTF1378 LAU2R2K LAU101K LAU100K LAU100K LAU100K CTF1510 CTF1530 LAU100K CSS1447 CSS1475

Miscellaneous Parts List

M M M 951 Pickup Unit(Service)(P9MP3) Motor Unit(SPINDLE) Motor Unit(LOADING/CARRIAGE) Motor Unit(AUTOMATIC FLAP) CXX1550 CXB6007 CXB5903 CXB8939

6. ADJUSTMENT

6.1 JIG CONNECTION DIAGRAM

To CD Mechanism Module

GGD1292

CN1902

Rubber Band

6.2 OEL UNIT ADJUSTMENT

Adjustment point
KEYBOARD UNIT(OEL) (SIDE B)
TP1 VR1801 TP2 Digital Multi-Meter

IC1801

IC1802
<When the OEL Unit has been replaced> 1. Use VR1801 to adjust the resistance between TP1 and TP2 to 6.1k.

6.3 CD ADJUSTMENT

1) Precautions This unit uses a single power supply (+3.3V) for the regulator. The signal reference potential, therefore, is connected to REFO1(approx. 1.65V) instead of GND. If REFO1 and GND are connected to each other by mistake during adjustments, not only will it be impossible to measure the potential correctly, but the servo will malfunction and a severe shock will be applied to the pick-up. To avoid this, take special note of the following. Do not connect the negative probe of the measuring equipment to REFO1 and GND together. It is especially important not to connect the channel 1 negative probe of the oscilloscope to REFO1 with the channel 2 negative probe connected to GND. Since the frame of the measuring instrument is usually at the same potential as the negative probe, change the frame of the measuring instrument to floating status. If by accident REFO1 comes in contact with GND, immediately switch the regulator or power OFF. Always make sure the regulator is OFF when connecting and disconnecting the various filters and wiring required for measurements. Before proceeding to further adjustments and measurements after switching regulator ON, let the player run for about one minute to allow the circuits to stabilize. Since the protective systems in the unit's software are rendered inoperative in test mode, be very careful to avoid mechanical and /or electrical shocks to the system when making adjustment. The RFI and RFO signals are easy to oscillate because of a wide band. When observing them, insert a resistor of about 1 k to the series. This equipment will not guarantee the load ejection operation when the mechanical unit is turned upside down. In particular, if the ejection operation is incorrectly performed and recovery is disabled, the recovery is enabled by resetting a product or turning ACC off to on. 2) Test Mode This mode is used for adjusting the CD mechanism module of the device. Test mode starting procedure Reset while pressing the 4 and 6 keys together. Test mode cancellation Switch ACC, back-up OFF. After pressing the EJECT key, do not press any other key until the disk is completely ejected. If the ] or [ key is pressed while focus search is in progress, immediately turn the power off (otherwise the actuator may be damaged due to adhesion of the lenses). Jump operation of TRs other than 100TR continues after releasing the key. CRG move and 100TR jump operations are brought into the Tracking close status when the key is released. Powering Off/On resets the jump mode to Single TR(91), the RF AMP gain setting to 0 dB, and the automatic adjustment value to the initial value.

- Flow Chart

[KEY] Contents Display [4]+[6]+Reset Test Mode In
[CD] or [SOURCE] Source On

TRK MIN

[BAND] Power On

(T. offset is adjusted)

TRK00 MIN00 SEC00

[3] Power On

(T. offset is not adjusted)

TRK 99 MIN99 SEC 99

[2] RF AMP Gain switching*1

TRKGGMINGGSECGG

[6] New Test Mode

[BAND] Power Off

TRK MIN SEC
[3] Focus Close / S. curve check

Focus Mode switching

TRK *2

[1] Tracking Servo Close

[]] CRG+

TRK *8

[[] CRGTRK *8
Automatic adjustment value *3 display switching

91 MIN91 SEC91

0x MIN0x SEC 0x

00 MIN00 SECMIN99 SEC99

00 MIN00 SECMIN99 SEC 99
00 MIN00 SECMIN 99 SEC 99

?? MIN?? SEC??

T.CLS and F,T AGC and RF AGC and
Applicable servomechanism TRKxx MINxx SECxx

[6] T.Close and

Applicable servomechanism

TRK xx MINxx SEC xx

[3] RF AGC /
RF AGC coefficient display

TRK ?? MIN ?? SEC ??

TRK8x MIN8x SEC8x

[[] CRGTRK8x MIN8x SEC8x

T.Balance adjustment /
T.Balance coefficient display

TRK ?? MIN?? SEC ??

TRK 9x MIN9x SEC 9x

TRK 9x MIN 9x SEC 9x

*7 F.Bias display switching TRK
[3] F,T AGC,F.Bias and RF AGC
CRG/TR jump value switching

TRK *5

[2] Tracking Open

F,T,RF AGC /

CRG+/TR Jump+

CRG-/TR JumpTRK

xx MINxx SEC xx

xxMIN xxSEC xx

8x MIN8x SEC8x 9xMIN 9xSEC 9x

+12dB 12 MIN12SEC12

[Key] Test Mode [BAND] Power On/Off []] [[]
Operation New Test Mode Error occurrence time/ cause display switching
Focus Close setting TRK 00MIN00SEC 00 or TRK99MIN99SEC 99

S. curve check setting

F. EQ measurement setting

01MIN01SEC 01

02MIN02SEC 02
CRG +/TR Jump+ TRK+/FF (Direction of the external surface) CRG -/TR JumpTRK-/REV (Direction of the internal surface)
T.CLS and AGC and Applicable servomechanism/ AGC,AGC display switching RF Gain switching/Offset adjustment display/ T.Balance adjustment/T.OPN

F.Offset Display

T.Offset Display
Switch to the order of the original display [1]

SCAN MODE

19 OUT3-

OUT4+ VCC

22 MUTE

23 OUT4-

P-GND4 SWITCH

*PD8091A
D15/A-1 BYTE VSS VCC D11 A19 A10 A11 A12 A13 A14 A15 A16 D14 D13 D12
D15/A-1 : Data output / Address input A0-19 : Address input D0-14 : Data output ce : Chip enable oe : Output enable BYTE : Mode switch VCC : Power supply VSS : GND NC : Not used
1 NC 2 AAAAAAAAAAce 13 VSS 14 oe 15 DDDDDDD3

Mute circuit

- Pin Functions (PD5745A)
Pin No. 1-7 8, 15 16-39 40,43-51-63-71-86 87,88 89-98-100 Pin Name NC BYTE CNVSS NC reset XOUT VSS XIN VDD nmi NC CKC NC CKA NC LS NC CKD DPDT KYDT DA2 NC CLK1 ILMD DA1 NC CLK0 NC rdy NC hold NC rd NC cs@ cs! cs) A19 NC A17-A9 VDD A8 VSS A7-A1 NC D15-D0 KS1,2 NC KD2 AVSS KD1 VREF AVCC NC I/O I I I O I I O O O O I O O I O O I I I O O O O O O O O I/O I/O I I Function and Operation Not used GND connection GND connection Not used Reset input Crystal oscillating element connection pin VSS connection Crystal oscillating element connection pin VDD connection NVI input Not used Fixed pulse output for cathode driver Not used Fixed pulse output for anode driver Not used Line sink signal output Not used Data transport / driver clock output Display data input Key data output Display data MSB output Not used Clock input for UART1 Dual illumination select output Display data LSB output Not used Clock input for UART0 Not used Pull up Not used Pull up Not used Read strobe output Not used Bank address select output Bank address select output External ROM chip select output Address bus 19 output Not used Address bus 17-9 output VDD connection Address bus 8 output GND connection Address bus 7-1 output Not used Data bus 15-0 input / output key strobe input / output Not used key data input VSS connection key data input VSS connection VCC connection Not used

*PD5745A 75 76

- Pin Functions (PD6340A)
Pin No. 1-5 6-11-14 15,24 25,28 29-32 33-57-64 *PD6340A Pin Name SEG4-0 COM3-0 VLCD KST3-0 KDT0,1 REM DPDT NC KYDT MODA X0 X1 VSS KDT2,3 NC KST4 NC SEG35-13 VDD SEG12-5 I/O O O O I I I O Function and Operation LCD segment output LCD common output LCD drive power supply Key strobe output Key data input (analogue input) Remote control reception Display data input Not used Key data output GND Crystal oscillator connection pin Crystal oscillator connection pin GND Key data input Not used Key strobe output Not used LCD segment output Power supply LCD segment output

I O O O

- Pin Functions (UPD63760GJ)
Pin No. 3-7 8-39 40, Pin Name R.GND rst AB12-8 AD7-0 cs ASTB read write wait INTQ IFMODE D.VDD xtalen! xtalen@ DA.VDD ROUT DA.GND R+ RREGC LL+ DA.GND LOUT DA.VDD X.VDD XTAL1 xtal! X.GND xtal@ XTAL2 X.VDD D.GND DIN DOUT SCKIN SCKO LRCKIN LRCK TESTX RFOK C16M TESTEN TEST4 D.VDD RFCK/HOLD WFCK/MIRR PLCK LOCK C1D1 C1D2 C2D1(RMUTE) C2D2(LMUTE) C2D3 D.GND ras I/O I I I/O I I I I O I I I O O O O O O Function and Operation GND for DRAM I/F Input of reset Address bus 12-8 from the microcomputer Address/data bus 7-0 to the microcomputer Chip selection Address strobe Control signals (read) Control signals (write) Control signals (wait) Interruption signals to the external microcomputer Switching between the data buses (16bit/8bit) Power supply for digital circuits Permission to oscillate 16.9344MHz Permission to oscillate 24.576MHz Power supply for DAC Output of audio for the right channel GND for DAC Output of the right channel audio PWM Output of the right channel audio PWM Connected to the capacitor for band gap Output of the left channel audio PWM Output of the left channel audio PWM GND for DAC Output of audio for the left channel Power supply for DAC Power supply for the crystal oscillator Connected to the crystal oscillator (16.9344MHz) Connected to the crystal oscillator (16.9344MHz) Ground for the crystal oscillator Connected to the crystal oscillator (24.576MHz) Connected to the crystal oscillator (24.576MHz) Power supply for the crystal oscillator GND for digital circuits Input of audio data Output of audio data Clock input for audio data Clock output for audio data Input of LRCK for audio data Output LRCK for audio data Output for tests Output of RFOK Output of 16.9344MHz Connected to GND Connected to GND Power supply for digital circuits Output of RFCK/HOLD signal Output of WFCK/MIRR signal Output of PLCK Output of LOCK Information on error correction Information on error correction Information on error correction (mute for Rch) Information on error correction (mute for Lch) Information on error correction Ground for digital circuits Output of DRAM RAS

- Pin Functions (PE5269A)
Pin No. 5 6, 13 14-50-59 60-69 70, 71 72, 75 Pin Name FTXD NC BSI BSO bsck DFS1, 2 DCKS EVDD EVSS NC DCOPY crst CBANK0-2 emph DSPMUTE DSET adena IC/VPP BRXEN bsrq xtalen! xtalen@ xrst VDCONT CD3VON CONT xwait LOEJ CLCONT CDMUTE reset XT1 XT2 REGC X2 X1 VSS VDD CLKOUT xwrite uben WR/W xread XASTB LOCK wrst AD0-7 BVDD BVSS AD8-15 xcs wcs DBBWRDY0, 1 DBBRRDY0, 1 AVDD AVSS I/O O I O I/O O O Format C Function and Operation For rewriting Flash EP-ROM (sending signals) Open Input of P-Bus serial data Output of P-Bus serial data Input/output of P-Bus serial clock Output 1, 2 of settings of DA I/F IC sampling frequency Output for selection of DA I/F IC clock subharmonic number Positive power supply for E power Potential of GND of E power Open Output of settings of DA I/F IC copy flag Output of reset control of Compression IC Output 0-2 of bank settings of Compression IC Output of information on emphasis Output of DOUT Mute Output for lighting the disc set indicator Output of control of A/D reference voltage supply IC: connected directly to VSS / VPP: Pull-down P-Bus receiving enabled Request for P-Bus service request Output of permission to oscillate CD LSI 16.9344MHz Output of permission to oscillate CD LSI 24.576MHz Output of control of CD LSI reset Output of control of VD power supply Output of control of CD +3.3V power supply Output of control of power supply to servo driver Input of control signals of CD LSI wait Output for switching between LOAD/EJECT directions Output for switching between driver inputs Output of control of CD Mute Input of system reset Connected to the oscillator for subclock (connected to VSS via the resistor) Connected to the oscillator for subclock (Open) Connected to the capacity stabilizing output of the regulator (an electrolytic capacitor of about 1F) Connected to the oscillator for the main clock Connected to the oscillator for the main clock Potential of GND Positive power supply (5V) Output of internal system clock (Open) Output of control signals of CD LSI light Not used (Open) Output of Read/Write control signals of WMA decoder Output of read control signals of CD LSI Output of CD LSI address strobe Input of spindle lock Output for reset control of WMA decoder Address/Data Bus 0-7 B power supply, positive supply (3.3V) B power supply, potential of GND Address/Data Bus 8-15 Output for chip selection of CD LSI Output for chip selection of WMA decoder Input of write-ready flag with WMA decoder DBBI0, 1 Input of read-ready flag with WMA decoder DBBO0, 1 A power supply, positive supply (5V) A power supply, potential of GND

4(COM0) 3(COM1) 2(COM2) 1(COM3)
5 4(COM0) 3(COM1) 2(COM2) 1(COM3)

7.2.2 DISPLAY

CAW1704

COMMON

SEGMENT
7.3 OPERATIONAL FLOW CHART

Power ON

VCC=5V Pin 16/17/62/99
bsens Pin 73 bsens=L asens Pin 74 asens=L ASENBOH Pin 82
Starts communication with Grille microcomputer.
SWVDDH Pin 40 (OEL) Pin 79 (LCD)
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.

Source keys operative

Source ON

SYSPWH Pin 23

Completes power-on operation. (After that, proceed to each source operation)

7.4 CLEANING

Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools:
Portions to be cleaned CD pickup lenses
Cleaning tools Cleaning liquid : GEM1004 Cleaning paper : GED-008
8. OPERATIONS AND SPECIFICATIONS

8.1 OPERATIONS

HEAD UNIT - CLOSE POSITION
EJECT BUTTON EQ BUTTON SOURCE BUTTON TEXT BUTTON TA BUTTON OPEN BUTTON / / / BUTTONS
1-6 (PRESET TUNING) BUTTON

RESET BUTTON

BAND BUTTON

- OPEN POSITION

ENTERTAINMENT BUTTON AUDIO BUTTON

DISPLAY BUTTON

FUNCTION BUTTON

REMOTE CONTROL ASSY

ATT BUTTON
BAND BUTTON / / / BUTTONS

SOURCE BUTTON

VOLUME BUTTON AUDIO BUTTON
Red (4*) To electric terminal controlled by ignition switch (12 V DC) ON/OFF. Front speaker Fuse resistor
Orange/white To lighting switch terminal.
Rear speaker Left + Subwoofer +
Black (ground) To vehicle (metal) body.
Blue/white To system control terminal of the power amp (max. 300 mA 12 V DC).
Use this for connections when you have the separately available amplifier. Note: Change the Initial Setting of this Product (refer to the Operation Manual). The subwoofer output of this unit is monaural.
ISO connector Note: In some vehicles, the ISO connector may be divided into two. In this case, be sure to connect to both connectors.
Yellow/black If you use a cellular telephone, connect it via the Audio Mute lead on the cellular telephone. If not, keep the Audio Mute lead free of any connections.
Speaker leads White : Front left + White/black : Front left Gray : Front right + Gray/black : Front right Green : Rear left + or Subwoofer + Green/black : Rear left or Subwoofer Violet : Rear right + or Subwoofer + Violet/black : Rear right or Subwoofer
Red (5*) Accessory (or back-up)
15 cm Front output (FRONT OUTPUT) 15 cm Rear output (REAR OUTPUT) Connecting cords with RCA pin plugs (sold separately) Power amp (sold separately) Power amp (sold separately) 15 cm Antenna jack IP-BUS input (Blue) 15 cm IP-BUS cable Power amp (sold separately) 23 cm Subwoofer output or Non Fading Output (SUBWOOFER or NON-FADING OUTPUT) The pin position of the ISO connector will differ depends on the type of vehicle. Connect 6* and 7* when Pin 5 is an antenna control type. In another type of vehicle, never connect 6* and 7*. This Product Fuse holder System remote control Blue/white (6*) Fuse resistor Blue/white (7*) To Auto-antenna relay control terminal (max. 300 mA 12 V DC). Front speaker Rear speaker Right Subwoofer

test report

PIONEER DEH-P6900UB
Text and Photos by Dave MacKinnon (www.osmlabs.com)
The main focus of the UB is that it features a USB connection on the rear of the deck
was in Vancouver, BC a few weeks ago, and had lunch with a few of the guys from Pioneer Canada. I mentioned to them that I had one of their new USB-equipped decks on the bench ready for a test drive. After a quick run-through of the decks features and capabilities, I was anxious to check it out. So, without further delay, lets dive into the Pioneer DEH-P6900UB.
Features The DEH-P6900UB is in the upper range of the vast array of Pioneer source units. Its a single-DIN AM / FM CD Receiver with a detachable control panel. The main focus of the UB is that it features a USB connection on the rear of the deck more on that later. The key cosmetic focus on the deck is the blue OEL (Organic Electro-Luminescent) dot matrix display and the large rotary control. The OEL display has a resolution of 160 x 48 pixels and can display up to three lines of text, each with an impressive 16 characters per line. Thats twice what most competing products offer. Pioneer calls the control the Rotary Commander. This multi-function control allows
you to access most of the decks features and functions. The Rotary Commander is called the Multi-Control in the owners manual, just in case you are looking for it. This large control is a volume knob, joystick and push button all in one. Turn it, press it or rock it up, down, left or right. These capabilities let you navigate and adjust everything on the 6900UB. Next on the massive list of features is the USB connection. Pioneer calls this uBus, and it allows USB devices such an iPod, a portable media player or a USB storage device to be accessed to play music. The DEH-P6900UB USB connection is a female USB A-type connection on a 20cm-long pigtail hanging off the back of the deck. Pioneer does include a long extension cable to make connecting a portable device easy. The USB port meets the USB 2.0 criteria and the maximum storage device capacity is 250GB freakin huge. Fat 12, Fat 16 and Fat 32 formats are supported, and the deck will play back MP3 and non-DRM enabled WMA and iTunes AAC files. It will also play WAV files if you want some serious sound quality thats a nice touch. There was a yellow insert in the owners manual that specified that only Mass

DEH-P6900UB SPECS

Speaker boxx
CD-R/RW ready MP3, WMA, WAV, iTunes AAC BMX Digital Enhancement XM / Sirius Radio Ready Built-in USB Control 18 FM/ 6 AM Presets iPod control capability (via optional CD-IU50) Auxiliary input (via optional CD-RB10 or CD-RB20) Subwoofer volume control 50W x 4 Built-in MOSFET Ampl ifier Flip-down control panel 10-key card remote control included 160- x 48-pixel Blue Organic EL (OEL) Display Bluetooth Interface Read y (Optional CD-BTB200)
The USB port meets the USB 2.0 criteria and the maximum storage device capacity is 250GB freakin huge. Fat 12, Fat 16 and Fat 32 formats are supported, and the deck will play back MP3 and non-DRM enabled WMA and iTunes AAC files.
PERFORMANCE AUTO & SOUND WWW.PASMAG.COM
The key cosmetic focus on the deck is the blue OEL (Organic Electro-Luminescent) dot matrix display and the large rotary control. The OEL display has a resolution of 160 x 48 pixels and can display up to three lines of text, each with an impressive 16 characters per line. Thats twice what most competing products offer. Pioneer calls the control the Rotary Commander.

PIONEER

DEH-P6900UB
Storage Class USB devices will work. The note also states that iPod functionality depends on the iPod specifications so well have to check that out on the bench. Compressed digital audio support is maximized with ID3 Tag display and AAC / WMA text display, so you will know the artist, title and album information while you are enjoying your music collection. Of course, these files can be played from the USB port or from a burnt CD. Bluetooth is the buzzword of the past few years and the 6900UB doesnt get left behind. Add the optional CD-BTB100 and you can link up with a compatible cellular phone to make or answer a phone call. The 6900UB is far from done laying its cards on the table. It is of course Sat radio ready, being able to control an optional Sirius or XM satellite radio tuner. A TV tuner, CD changer and a DVD or Multi-DVD player are additional options.
Digging through the owners manual reveals a few subtle features that are worth mentioning. In the CD playback menu, Pioneer includes an option that offers control over compression and the Pioneer BMX. Bit Media eXpander is Pioneers audio-processing software designed to help restore sound quality to compressed media files.
The DEH-P6900UB is well appointed when it comes to conventional audio adjustments as well. Of course, the deck features a conventional balance and fader control to start. Up next in the menu structure is equalization. The 6900UB offers Powerful, Natural, Vocal, Custom1, Custom2, Flat and S.Bass preset curves. You can also go in and adjust the equalizer curves manually. Frequency centers are at 50, 125, 315, 800, 2k, 5k and 12.5kHz and you can boost by up to 12dB in 2dB steps. Next are the subwoofer output controls. You can

set the crossover frequency at 50, 63, 80, 100 or 125Hz and the slope is specified as being -18dB / octave. The subwoofer output level is also adjustable, from +6dB to -24dB and subwoofer polarity can be normal or reversed. You can set the rear channel preamp output to be full range or subwoofer. Interestingly, you can set the rear power output channels of the deck to the same options subwoofer or full range. Pioneer claims (and they are technically correct) that you can drive your subwoofer directly with the powered output of the rear channels. Just dont expect to break any SPL records with it. That OEL display is quite configurable. The 6900UB features all sorts of different screen effects call them wallpapers if you will. Two different background visuals, four background pictures, a level meter, three visualizers, two spectrum analyzers, a movie or an entertainment clock. If you are like me, you can turn off all the motion for a simple static display with the Ent. OFF 1 mode. There are also adjustments for dimmer, brightness and even a reverse mode, so the 6900UB is always going to look good.
The 6900UB features all sorts of different screen effects: two different background visuals, four background pictures, a level meter, three visualizers, two spectrum analyzers, a movie or an entertainment clock.

000 82

z zword zword B luetooth is the bu z B luetooth is the bu and the nd the the past few years a the past few years of of behind. doesnt get left U B doesnt get left behind 6900 U B 6900 TB100 B100 the optional CD -B T Add the optional C D -B Add th a with a and you can lin k up wi and you can lin k up to phone to atible cellular phone compatible cellula r comp ll. call. answer a phone c a e or answer a phone mak e or mak
TESTING I set the 6900UB up on my test bench for a run through the measurement gauntlet. Up first was power output. The owners manual provides one of the weirdest power specifications I have seen in a while. Pioneer claims 22W x 4 (50Hz to 15kHz) at 5% distortion. While in a real-world application this is a totally valid number, it surely doesnt equate to the CEA-2006 spec we use as a reference. With all four channels connected to my bank of 4 load resistors, I measured 8.63V per channel, or 18.61Wrms, which represents a rock solid performance with all channels driven. Next was output voltage. The Pioneer clan claim 4V with an output impedance of 100. I measured 3.90V at full volume with a 1kHz,
0dB sine wave. Bumping the 2kHz eq band up a notch increased the output, and I was able to measure 3.99V (call it 4V) just as clipping was setting in on the top of the waveform. Output impedance was excellent, measuring a very low 55 that is a specification to be very proud of. Finally, I loaded up the Pierre Verany Digital Test CD to evaluate error-tracking capabilities. The DEH-P6900UB came in on the low end of the scale, only being capable of playing 31 without errors. This represents the ability to track through 1.0mm errors a little on the low side, but still in the acceptable range. I found it took some getting used to the Rotary Commander. The button doesnt stick out very far, but it is covered in rubber around the edges to make gripping easier. There was lots of pushing, turning and tilting required to

get through some of the menus, and though the layout is very logical and intuitive, many menus would be easier to access with some dedicated buttons. It all boils down to personal preference though. Time to check out the aforementioned iPod situation. I plugged in my 30GB fifth-generation iPod video to start the test. After a second, the iPod displayed the Pioneer logo on the screen, and the track I had been listening to last started playing. You can sort your music by album, artist, song or playlist just to name a few. With the test of the new iPod complete, I plugged in my old third-gen 20GB iPod. The 6900UB didnt find it, even though the iPod was running the latest 3.1.1 software revision. This is a common occurrence for source units that connect to an iPod via USB.
The cosmetic theme of the DEH-P6900UB is decidedly high-tech and should be a hit with anyone wanting to add some tech bling to their ride.
The cosmetic theme of the DEH-P6900UB is decidedly high-tech and, provided you like blue, should be a hit with anyone wanting to add some tech bling to their ride. I had a hard time reading the buttons on the left when the deck was on my bench, but once I got used to their functionality, all was well. The DEH-P6900UB is a well-equipped head unit. Pioneer doesnt have a lot of USB-equipped decks in its product line (the only other is in the Premier series), so this one is destined to be very popular. It has absolutely all the features required to be the heart of a massive audio system and it checks out well on the bench in terms of measurements. Odds are good Pioneer is going to sell a lot of these this year!

Conclusion

22265 E 220th St, Long Beach, CA, 90810 Tel: 952-2000 www.pioneerelectronics.com