Clarion DB345MP, DB346MP Service Manual

Clarion	( Malaysia) Sdn. Bhd.			Published by Clarion (Malaysia)
Phase 3, Free Trade Zone One, 11900 Bayan Lepas, Penang, Malaysia
				298-6124-00 FEB. 2004P
Tel: [phone], Fax: [phone]
Clarion	Co.	Ltd.		Printed In Malaysia
Export Division :		50 Kamitoda, Toda-shi, Saitama 335-8511 Japan
		Service	Manual

AM/FM CD/MP3 Player

Model

(PE-2640B-A: For U.S.A.)

Model

(PE-2640K-A: For other countries)

SPECIFICATIONS

Radio section Model: PE-2640B-A

Tuning system: PLL synthesizer tuner

Receiving frequencies: FM 87.9 to 107.9MHz (0.20 MHz steps) AM 530 to 1,710kHz (10 kHz steps)

Model: PE-2640K-A

Tuning system:	PLL synthesizer tuner
Receiving frequencies:	FM 87.0 to 108MHz (0.05 MHz steps)
	AM 531 to 1,629kHz (9 kHz steps)
CD/MP3 player section
System:	Compact disc digital audio system
Frequency response:	10Hz to 20kHz (+1dB/-1dB)
Signal to Noise ratio:	100dB (1kHz) IHF-A
Dynamic range:	95dB (1kHz)
Distortion:	0.01%
MP3
Decode Format:	MPEG 1, 2 and 2.5-Layer 3
Sampling rate (kHz):	MPEG-1:	32, 44.1, 48
	MPEG-2:	16, 22.05, 24
	MPEG-2.5:	8, 11.025, 24
Bit-rate (kbps):	8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112,
	128, 144, 160, 192, 224, 256, 320, VBR
CD-ROM Format:	ISO9660 Level 1, 2, Romeo and Joliet
Folder Level Limit:	No limitation
Folder Support:	128
File Support:	254
Folder Name:	Maximum 16 characters
File Name:	Maximum 28 characters
General
Max. Power Output:	50W x 4
Line Output:	1.7V (with CD 1kHz, 10k ohm)
Bass Control Action:	+14dB/-14dB (30Hz)
Treble Control Action:	+14dB/-14dB (10 kHz)
Power supply voltage:	DC 14.4V (10.8 to 15.6V allowable)
	negative ground
Current consumption:	Less than 15A
Speaker impedance:	4 ohm (4 ohm to 8 ohm allowable)
Dimensions (mm):	178 (W) x 50 (H) x 152 (D)mm
Weight:	1.1kg

Specification and design are subject to change without notice for further improvement.

NOTE

1.We cannot supply PWB with component parts in principle. When a circuit on PWB has failure, please repair it by component parts base. Parts which are not mentioned in service manual are not supplied.

FEATURES

1.Visible Blue Negative LCD and White Illuminated Buttons

2.Aluminium Detachable Faceplate

3.Rotary Volume for Easy Operation

4.Z-Enhancer with 3 Mode Sound Selector

5.MAGNA BASS EX for Dynamic Bass Tuning

6. FM Reception System

7.Seek/Manual Up/Down Tuning

8.8-Times Oversampling Digital Filter and Dual 1-Bit D/A Converters

9.Preset Station Scan (PS), Automatic Store (AS)

10.4-Channel RCA Line Level Output

11.AM 1 band, FM 3 bands each 6 channels total 24 channels, Preset Memory Function

12.Repeat/Random Play/Intro Music Scan

13.200W (50 W x 4) Maximum Power Output

14.IR Remote Control Included

15.MP3NAVI for Quick Music Folder and Track Search

16 MP3 File Playable with ID3-TAG Display

COMPONENTS

PE-2640B-A / PE-2640K-A

Source unit			1
Battery (SUM-3)
(PE-2640B only)			2
Remote Controller
(PE-2640B only)	RCB-164-201		1
DCP Case	335-5734-05		1
Mounting bracket	300-7742-20		1
Escutcheon (Outer-Es)
(PE-2640B)	370-6100-00		1
(PE-2640K)	370-6096-00		1
Extension Lead	854-6391-60		1
Part’s bag				1
Removal key	331-2497-20		2
Stopper (PE-2640B only)	335-4899-20		1

- 1 -

DB345MP/DB346MP

To engineers in charge of repair or inspection of our products.

Before repair or inspection, make sure to follow the instructions so that customers and Engineers in charge of repair or inspection can avoid suffering any risk or injury.

1.Use specified parts.

The system uses parts with special safety features against fire and voltage. Use only parts with equivalent characteristics when replacing them.

The use of unspecified parts shall be regarded as remodeling for which we shall not be liable.The onus of product liability (PL) shall not be our responsibility in cases where an accident or failure is as a result of unspecified parts being used.

2.Place the parts and wiring back in their original positions after replacement or re-wiring.

For proper circuit construction, use of insulation tubes, bonding, gaps to PWB, etc., is involved. The wiring con-

nection and routing to the PWB are specially planned using clamps to keep away from heated and high voltage parts. Ensure that they are placed back in their original positions after repair or inspection.

If extended damage is caused due to negligence during repair, the legal responsibility shall be with the repairing company.

3. Check for safety after repair.

Check that the screws, parts and wires are put back securely in their original position after repair. Ensure for safety reasons there is no possibility of secondary problems around the repaired spots.

If extended damage is caused due to negligence of repair, the legal responsibility shall be with the repairing company.

4.Caution in removal and making wiring connection to the parts for the automobile.

Disconnect the battery terminal after turning the ignition key off. If wrong wiring connections are made with the battery connected, a short circuit and/or fire may occur. If extensive damage is caused due to negligence of repair, the legal responsibility shall be with the repairing company.

5.Cautions regarding chips.

Do not reuse removed chips even when no abnormality is observed in their appearance. Always replace them with new ones. (The chip parts include resistors, capacitors, diodes, transistors, etc.). The negative pole of tantalum capacitors is highly susceptible to heat, so use special care when replacing them and check the operation afterwards.

6.Cautions in handling flexible PWB.

Before working with a soldering iron, make sure that the iron tip temperature is around 270°C. Take care not to apply the iron tip repeatedly (more than three times) to the same patterns. Also take care not to apply the tip with force.

7.Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.

8.Cautions in checking that the optical pickup lights up. The laser is focused on the disc reflection surface through the lens of the optical pickup. When checking that the laser optical diode lights up, keep your eyes more than 30cm away from the lens. Prolonged viewing of the laser within 30cm may damage your eyesight.

9.Cautions in handling the optical pickup

The laser diode of the optical pickup can be damaged by electrostatic charge caused by your clothes and body. Make sure to avoid electrostatic charges on your clothes or body, or discharge static electricity before handling the optical pickup.

9-1.Laser diode

The laser diode terminals are shorted for transportation in order to prevent electrostatic damage. After replacement, open the shorted circuit. When removing the pickup from the mechanism, short the terminals by soldering them to prevent this damage.

9-2.Actuator

The actuator has a powerful magnetic circuit. If a magnetic material is put close to it. Its characteristics will change. Ensure that no foreign substances enter through the ventilation slots in the cover.

9-3.Cleaning the lens

Dust on the optical lens affects performance. To clean the lens, apply a small amount of isopropyl alcohol to lens paper and wipe the lens gently.

CAUTIONS

Use of controls, adjustments, or performance of procedures other those specified herein, may result in hazardous radiation exposure.

The compact disc player should not be adjustment or repaired by anyone except properly qualified service personnel.

Bottom View of

Main Unit

DB345MP/DB346MP

- 2 -

TROUBLESHOOTING

	Problem			Cause	Measure
	Power does not turn on.		Fuse is	blown.	Replace with a fuse of the same amperage.
	(No sound is	produced).
			Incorrect	wiring	Read the attached “Installation/Wire connection
					Guide” once again and wire properly.
	Compact disc	cannot be	Another compact disc is already		Eject the compact disc before loading the new
	loaded.		loaded.		one.
			Compact	disc is dirty.	Clean the compact disc with a soft cloth.
	Sound skips or is noisy.
			Compact disc is heavily scratched		Replace with a compact disc with no scratches.
			or warped.
	Sound is bad directly after		Water droplets may form on the		Let dry for about 1 hour with the power on.
	power is turned on.		internal lens when the car is
			parked in a humid place.
	Nothing happens when buttons		Microprocessor has		Turn off the power, then press the [RELEASE]
	are pressed.		malfunctioned due to noise, etc.		button and remove the DCP.
	Display is not	accurate.			Press the reset button for about 2 seconds with a
					thin rod.
			DCP or main unit connectors are		Wipe the dirt off with a soft cloth moistened with
			dirty.		cleaning alcohol.

ERROR DISPLAYS

To protect the system, this unit has been equipped with self diagnostic functions. If a fault arises, a warning is issued by various error displays. Follow the corrective measures and remove the fault.

	Error Display	Corrective Measure
	ER2	This error display indicates that a fault has arised in the mechanism of the
		source unit (for example, the disc cannot be ejected).
		!Check the source unit
	ER3	This error display indicates that the pickup focus is off because of a scratched
		disc or some other factor during source unit play.
		!Check the compact unit
	ER6	This indicates that the CD’s TOC (table of contents) cannot be read, because
		the selected disc is upside-down.

- 3 -

DB345MP/DB346MP

BLOCK DIAGRAM

MAIN UNIT SECTION

CD MECHANISM SECTION 929-0290-80

DB345MP/DB346MP

- 4 -

EXPLANATION OF IC

uPD784215AYGC-129-8EU

052-3933-00

Master Micro

computer

Outward

Form

100 pins,

plastic

QFP

Terminal

Description

Pin No

PIN NAME

I/O

DESCRIPTION

1

VOL_CLK

O

E-VOL

Control Clock output

2

VOL_DATA

O

E-VOL Control Data output

3

REM_DET

I

While protecting circuit motion, it

is at

‘HI’

4

OFFSET DET

I

While Power Amp IC is abnormal,

it is at

‘LOW’

5

PHONE_INT

I

NC

6

NC

-

NC

7

MP3 REQ

I

REQ input from MP3 decoder

8

NC

-

NC

9

VDD

-

Power supply terminal 5V

10

X_OUT

-

Crystal

12MHz

(Main

system

clock)

11

X_IN

-

Crystal

12MHz

(Main

system

clock)

12

VSS

-

GND

13

XT_OUT

-

NC

14

XT_IN

-

GND

15

RESET

-

Reset port (When system is

reset, it is at ‘LOW’)

16

NC

-

NC

17

B/U

DET

I

B/U detecting terminal

18

ACC

DET

I

ACC detecting terminal

19

REMOCON

I

IR Sensor signal input for Remote

Control

20

KEY_INT

I

When this terminal turns low, key

A/D terminal detects the key

pushed (FNC, EJECT & DCP

keys)

21

SBSY

I

GS1-MC CD Sub-code block

sync

detection input

22

TBASE

I

PLL Time Base signal input (8Hz)

23

AVDD

-

Analog Power supply 5V

24

AVREF0

-

ADC Reference Voltage Input

25

KEY A/D

I

FNC/EJECT/DCP detection

terminal

for

A/D

converter

26

TEST

I

TEST keys

detection

terminal

(For

Test Mode

purpose)

27

NC

-

NC

28

NC

-

NC

29

NC

-

NC

30

NC

-

NC

31

NC

-

NC

32

NC

-

NC

33

AVSS

-

Analog GND

Pin No	PIN NAME	I/O	DESCRIPTION
34	NC	-	NC
35	NC	-	NC
36	AVREF1	-	DAC Reference Voltage Input
37	NC	-	NC
38	NC	-	NC
39	NC	-	NC
40	NC	-	NC
41	NC	-	NC
42	NC	-	NC
43	NC	-	NC
44	NC	-	NC
45	MP3 SDA	I/O	MP3 Data Communication Port
			(I2C	bus)
46	NC	-	NC
47	MP3 SCL	O	MP3 Clock Output (I2C bus)
48	MP3 RESET	O	When MP3 decoder is reset, it is
			at ‘LOW’
49	MP3 STANDBY	O	When MP3 decoder is at standby
			mode, it is at ‘LOW’
50	STANDBY	O	Power Amp IC control terminal
51	REM_ON	O	While Power on, it is at ‘HI’
52	CD_8V_REM	O	CD power supply control terminal
			+8V
53	B/L + B	O	Illumination Control Output (While
			ACC is ON, it is at ‘HI’)
54	CS1	I	Destination			Selection		Input. Refer
			Table 1.
55	CS2	I	Destination			Selection		Input. Refer
			Table 1.
56	LCD SI	I	Serial data input communication
			line to LCD Control IC
57	LCD SO	O	Serial data output communication
			line to LCD Control IC
58	LCD SCK	O	Serial clock			output communication
			line to LCD Control IC
59	LCD CE	O	LCD chip enable output
60	VOL-CW	I	Use	for	rotary		volume
61	VOL-CCW	I	Use	for	rotary		volume
62	NC	-	NC
63	NC	-	NC
64	NC	-	NC
65	TR-B	I	GS1-MC CD Disc Detection Input
			(HI: with		disc,		LOW: without disc)

- 5 -

DB345MP/DB346MP

Pin No	PIN NAME	I/O	DESCRIPTION
66	S-STOP	I	GS1-MC CD Pick-up Inner Limit
			Detection Input (HI: Limit, LOW:
			Playable)
67	RST	O	GS1-MC CD Servo Reset Output
			(While reset, it is at ‘LOW’)
68	BUCK	O	GS1-MC CD Servo Clock Output
69	Z-MUTE	I	GS1-MC CD DAC Zero Data
			Detection Input (While Zero data
			is detected, it is at ‘HI’)
70	D_OUT	I	NC
71	CCE	O	GS1-MC CD Servo Chip Enable
			Output
72	VSS	-	GND
73	BUS3	I/O	GS1-MC CD Servo Data
			Communication Port
74	BUS2	I/O	GS1-MC CD Servo Data
			Communication Port
75	BUS1	I/O	GS1-MC CD Servo Data
			Communication Port
76	BUS0	I/O	GS1-MC CD Servo Data
			Communication Port
77	CHU-SW	I	GS1-MC CD Disc Chucking
			Detection Input (HI: Chuck
			uncompleted, LOW: Chuck
			completed)
78	TR-A	I	GS1-MC CD 8cm Disc Detection
			Input (HI: 12cm disc, LOW: 8cm
			disc)
79	LD_MUTE	O	GS1-MC CD Sled Motor Standby
			Output (HI: Operation, LOW:
			Standby)
80	LD_COUNT	O	GS1-MC CD Loading/Eject
			Control Output (HI: Eject, LOW:
			Loading)

Pin No	PIN NAME	I/O	DESCRIPTION
81	VDD	-	Power supply terminal 5V
82	PLL DI	I	PLL Data Input
83	PLL DO	O	PLL Data Output
84	PLL CLK	O	PLL Clock
85	PLL CE	O	PLL Chip Enable
86	NC	-	NC
87	NC	-	NC
88	NC	-	NC
89	NC	-	NC
90	NC	-	NC
91	SD/ST_IND	I	AM/FM SD and Stereo Detection
			Signal Input (HI: SD Off/Mono,
			LOW: SD On/Stereo)
92	NC	-	NC
93	NC	-	NC
94	TEST/VPP	-	NC
95	REM 5V	O	System 5V power supply control
			terminal
96	SYS_MUTE	O	Audio Mute Control Output (While
			mute is ON, it is at ‘LOW’)
97	CD_5V_REM	O	CD power supply control terminal
			+5V
98	NC	-	NC
99	NC	-	NC
100	NC	-	NC

TABLE 1. The Destination Setting		Terminal
	U.S. Area Setting		Outside	U.S. Area Setting
CS1 (Pin 54)	L			H
CS2 (Pin 55)	L			L

DB345MP/DB346MP

- 6 -

TC94A15F

051-6399-00

CD Mechanism IC

Outward

Form

100 pins,

plastic QFP

Terminal

Description

Pin No

PIN NAME

I/O

DESCRIPTION

1

IPF

OUT

O

IP flag output

2

SB OK O

O

Sub code Q data CRCC OK

signal output

3

CLOCKIO

I/O

The clock pulse input/output for

the sub code reading

4

VDD

-

Positive

supply

voltage

5

VSS

-

Nagative

supply

voltage

6

DATA

O

DATA

7

SF SY O

O

Playback

frame

synchronous

signal output

8

SB SY O

O

Sub

code

block

sychronous

signal output

9

HSO

O

The play speed flag ouput

10

UHSO

O

The play speed flag output

11

AR SEL IN

I

Fix to the high level

12

AWRC

O

The control signal ouput for the

active wide range VCO

13

P VDD

-

PLL

positive supply voltage.

14

PDO

O

Phase difference signal output of

EFMPLCK.

15

TMAX S

O

T max judgment output.

16

TMAX

O

T max judgment output.

17

LPF N

I

Inverted input of LPF for PLL.

18

LPF

OUT

O

The output terminal for the Low

Pass

Filter.

19

P Vref

-

PLL

reference

voltage.

20

VCO

FILTER

O

Loop filter for VCO.

21

VCO

Ref

I

VCO

reference

voltage

input.

22

DTC N

O

For the analog slicer.

23

DTC P

O

For the analog slicer.

24

PLL VSS

-

PLL ground.

25

SLCO

O

Output of internal DAC for data

slice

level

generation.

26

RF IN

I

RF signal

input.

27

RF RP

I

RF ripple input.

28

RF EQ OUT

O

The output of the RF equalizer.

29

A VDD

-

Positive supply voltage for the

Analog section.

30

RES

IN

-

For

reference

current

setting.

31

Vref

OUT

O

The

reference

voltage

output.

32

VMDIR

O

The

reference

voltage

output.

33

TESTR

O

The compensation terminal for

RFEQO

offset.

34

INVSEL

I

MDI

polarity selection.

35

AGCI

I

The input terminal of RF AGC

amplifier.

36

RF

DCI

I

The input terminal for RF peak

detection.

37

RF

OUT

O

RF signal output.

Pin No	PIN NAME	I/O	DESCRIPTION
38	PN SEL	I	The	transistor type				selection
			input for laser diode driver.
			L=NPN, H=PNP.
39	EQ SET	O	The	equalizer setting terminal.
40	RF VDD	-	RF	power supply.
41	LDO	O	The laser diode drive output.
42	MDI	I	Monitor photo diode signal input.
43	RF VSS	-	RF	ground.
44	FNI 2	I	Main beam signal input.
45	FNI 1	I	Main beam signal input.
46	FPI 2	I	Main beam signal input.
47	FPI 1	I	Main beam signal input.
48	TPI	I	Sub beam signal input.
49	TNI	I	Sub beam signal input.
50	FTEO	O	For	test.
51	RF ZI	I	RF ripple zero cross signal input.
52	A VSS	-	Analog ground.
53	RF RP	O	RF ripple signal output.
54	RF DC	O	RF peak detection signal output.
			(hologram suitable)
55	FEI	O	Focus		error signal			output.
56	SBAD	O	Sub beam add signal output.
57	TEI	O	Tracking			error signal output.
58	TE Z IN	I	Tracking error signal inpur for
			zero cross.
59	A VDD	-	Positive supply voltage for the
			Analog		section.
60	FOO	O	Focus		equalizer		output.
61	TRO	O	Tracking			equalizer		output.
62	Vref	O	Reference voltage					output.
63	FMO	O	Field equalizer output / Speed
			error output.
64	DMO	O	Disk	equalizer output.
65	IO2A	I/O	General			input/output.
66	IO3A	I/O	General			input/output.
67	MONIT	O	Internal DSP signal monitor.
68	FG IN	I	FG input for the spindle CAV
			servo.
69	VSS	-	Negative			supply	voltage.
70	VDD	-	Positive			supply	voltage.
71	TESIN	I	For	test.
72	X VSS	-	Master		clock analog ground.
73	X IN	I	Crystal		connection.
74	X O	O	Crystal		connection.
75	X VDD	-	Clock power supply.
76	D VSS	-	Digital		ground.

- 7 -

DB345MP/DB346MP