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%
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.
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AM/FM CD/MP3 PlayerAM/FM CD/MP3 Player
AM/FM CD/MP3 Player
AM/FM CD/MP3 PlayerAM/FM CD/MP3 Player
ModelModel
Model
ModelModel
ice Manualice Manual
ice Manual
ice Manualice Manual
(PE-2640B-A: For U.S.A.)
ModelModel
Model
ModelModel
(PE-2640K-A: For other countries)
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
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 connection 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/DB346MPDB345MP/DB346MP
DB345MP/DB346MP
DB345MP/DB346MPDB345MP/DB346MP
- 2 -- 2 -
- 2 -
- 2 -- 2 -
TROUBLESHOOTING
ProblemProblem
Problem
ProblemProblem
Power does not turn on.
(No sound is produced).
Compact disc cannot be
loaded.
Sound skips or is noisy.
Sound is bad directly after
power is turned on.
Nothing happens when buttons
are pressed.
Display is not accurate.
CauseCause
Cause
CauseCause
Fuse is blown.Replace with a fuse of the same amperage.
Incorrect wiringRead the attached “Installation/Wire connection
Guide” once again and wire properly.
Another compact disc is already
loaded.
Compact disc is dirty.
Compact disc is heavily scratched
or warped.
Water droplets may form on the
internal lens when the car is
parked in a humid place.
Microprocessor has
malfunctioned due to noise, etc.
Eject the compact disc before loading the new
one.
Clean the compact disc with a soft cloth.
Replace with a compact disc with no scratches.
Let dry for about 1 hour with the power on.
Turn off the power, then press the
button and remove the DCP.
Press the reset button for about 2 seconds with a
thin rod.
MeasureMeasure
Measure
MeasureMeasure
[RELEASE][RELEASE]
[RELEASE]
[RELEASE][RELEASE]
DCP or main unit connectors are
dirty.
Wipe the dirt off with a soft cloth moistened with
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
ER2
ER3
ER6
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
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
This indicates that the CD’s TOC (table of contents) cannot be read, because
the selected disc is upside-down.
Pin No PIN NAMEI/O DESCRIPTIONPin No PIN NAMEI/O DESCRIPTION
34NC-NC
35NC-NC
36AVREF1-DAC Reference Voltage Input
37NC-NC
38NC-NC
39NC-NC
40NC-NC
41NC-NC
42NC-NC
43NC-NC
44NC-NC
45MP3 SDAI/O MP3 Data Communication Port
(I2C bus)
46NC-NC
47MP3 SCLOMP3 Clock Output (I2C bus)
48MP3 RESETOWhen MP3 decoder is reset, it is
at ‘LOW’
49MP3 STANDBY OWhen MP3 decoder is at standby
mode, it is at ‘LOW’
50STANDBYO Power Amp IC control terminal
51REM_ONOWhile Power on, it is at ‘HI’
52CD_8V_REMOCD power supply control terminal
+8V
53B/L + BOIllumination Control Output (While
ACC is ON, it is at ‘HI’)
54C S1IDestination Selection Input. Refer
Table 1.
55C S2IDestination Selection Input. Refer
Table 1.
56LCD SIISerial data input communication
line to LCD Control IC
57LCD SOOSerial data output communication
line to LCD Control IC
58LCD SCKO Serial clock output communication
line to LCD Control IC
59LCD CEO LCD chip enable output
60VOL-CWIUse for rotary volume
61VOL-CCWIUse for rotary volume
62NC-NC
63NC-NC
64NC-NC
65 TR-BIGS1-MC CD Disc Detection Input
(HI: with disc, LOW: without disc)
- 5 -- 5 -
- 5 -
- 5 -- 5 -
DB345MP/DB346MPDB345MP/DB346MP
DB345MP/DB346MP
DB345MP/DB346MPDB345MP/DB346MP
66S-STOPIGS1-MC CD Pick-up Inner Limit
Detection Input (HI: Limit, LOW:
Playable)
67RSTOGS1-MC CD Servo Reset Output
(While reset, it is at ‘LOW’)
68BUCKO GS1-MC CD Servo Clock Output
69Z-MUTEIGS1-MC CD DAC Zero Data
Detection Input (While Zero data
is detected, it is at ‘HI’)
Pin No PIN NAMEI/O DESCRIPTIONPin No PIN NAMEI/O DESCRIPTION
81VDD-Power supply terminal 5V
82PLL DIIPLL Data Input
83PLL DOO PLL Data Output
84PLL CLKO PLL Clock
85PLL CEO PLL Chip Enable
86NC-NC
87NC-NC
88NC-NC
89NC-NC
90NC-NC
91SD/ST_INDIAM/FM SD and Stereo Detection
Signal Input (HI: SD Off/Mono,
LOW: SD On/Stereo)
92NC-NC
93NC-NC
94TEST/VPP-NC
95REM 5VO System 5V power supply control
terminal
96SYS_MUTEO Audio Mute Control Output (While
mute is ON, it is at ‘LOW’)
97CD_5V_REMO CD power supply control terminal
+5V
98NC-NC
99NC-NC
100NC-NC
TABLE 1.TABLE 1.
TABLE 1. The Destination Setting Terminal
TABLE 1.TABLE 1.
U.S. Area SettingOutside U.S. Area Setting
CS1 (Pin 54)L H
CS2 (Pin 55)L L
DB345MP/DB346MPDB345MP/DB346MP
DB345MP/DB346MP
DB345MP/DB346MPDB345MP/DB346MP
- 6 -- 6 -
- 6 -
- 6 -- 6 -
TC94A15F 051-6399-00
CD Mechanism IC
Outward FormOutward Form
Outward Form
Outward FormOutward Form
100 pins, plastic QFP
Terminal Description
1IPF OUTO IP flag output
2SB OK OO Sub code Q data CRCC OK
signal output
3CLOCKIOI/O The clock pulse input/output for
the sub code reading
4VDD-Positive supply voltage
5VSS-Nagative supply voltage
6DATAODATA
7S F SY OO Playback frame synchronous
signal output
8SB SY OO Sub code block sychronous
signal output
9H S OO The play speed flag ouput
10UHSOO The play speed flag output
11AR SEL INIFix to the high level
12AWRCO The control signal ouput for the
active wide range VCO
13P VDD-PLL positive supply voltage.
14P DO O Phase difference signal output of
EFMPLCK.
15TMAX SO T max judgment output.
16 TMAXO T max judgment output.
17LPF NIInverted input of LPF for PLL.
18LPF OUTOThe output terminal for the Low
Pass Filter.
19P Vref-PLL reference voltage.
20VCO FILTEROLoop filter for VCO.
21VCO RefIVCO reference voltage input.
22DTC NO For the analog slicer.
23DTC PO For the analog slicer.
24PLL VSS- PLL ground.
25SLCOO Output of internal DAC for data
slice level generation.
26RF INIRF signal input.
27RF RPI RF ripple input.
28RF EQ OUTO The output of the RF equalizer.
29A VDD-Positive supply voltage for the
Analog section.
30RES IN- For reference current setting.
31Vref OUTO The reference voltage output.
32VMDIRO The reference voltage output.
33TESTRO The compensation terminal for
RFEQO offset.
34INVSELIMDI polarity selection.
35AGCIIThe input terminal of RF AGC
amplifier.
36RF DCIIThe input terminal for RF peak
detection.
37RF OUTO RF signal output.
Pin No PIN NAMEI/O DESCRIPTIONPin No PIN NAMEI/O DESCRIPTION
38PN SELIThe transistor type selection
input for laser diode driver.
L=NPN, H=PNP.
39EQ SETO The equalizer setting terminal.
40RF VDD-RF power supply.
41L DOO The laser diode drive output.
42MDIIMonitor photo diode signal input.
43RF VSS-RF ground.
44FNI 2IMain beam signal input.
45FNI 1IMain beam signal input.
46FPI 2IMain beam signal input.
47FPI 1IMain beam signal input.
48TPIISub beam signal input.
49TNIISub beam signal input.
50FTEOO For test.
51RF ZIIRF ripple zero cross signal input.
52A VS S-Analog ground.
53RF RPORF ripple signal output.
54RF DCO RF peak detection signal output.
(hologram suitable)
55FE IO Focus error signal output.
56SBADO Sub beam add signal output.
57TEIO Tracking error signal output.
58TE Z INITracking error signal inpur for
zero cross.
59A VDD-Positive supply voltage for the
Analog section.
60F OOO Focus equalizer output.
61TR OO Tracking equalizer output.
62VrefO Reference voltage output.
63FMOO Field equalizer output / Speed
error output.
64DM OO Disk equalizer output.
65IO2AI/ O General input/output.
66IO3AI/ O General input/output.
67MON I TO Internal DSP signal monitor.
68FG IN IFG input for the spindle CAV
servo.
69VSS-Negative supply voltage.
70VDD-Positive supply voltage.
71TES INIFor test.
72X VSS - Master clock analog ground.
73X I NICrystal connection.
74X OO Crystal connection.
75X VDD-Clock power supply.
76D VS S-Digital ground.
- 7 -- 7 -
- 7 -
- 7 -- 7 -
DB345MP/DB346MPDB345MP/DB346MP
DB345MP/DB346MP
DB345MP/DB346MPDB345MP/DB346MP
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