Service Manuals, User Guides, Schematic Diagrams or docs for : Philips Car Audio CE152 CE152

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CE152

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CE152/all

DISMANTLING INSTRUCTIONS.................................................2 MAIN PCB COMPONENT LAYOUT............................................7-8
BLOCK DIAGRAM........................................................................3
PANEL PCB COMPONENT LAYOUT.........................................9-10
WIRING DIAGRAM......................................................................4
CIRCUIT DIAGRAM MAIN BOARD.............................................5 SET EXPLODER VIEW DRAWING................................................11

CIRCUIT DIAGRAM PANEL BOARD..........................................6 TROUBLE SHOOTING...................................................................12-13

2012-5-30
The procedure of disassembling the unit
1. Remove A, B screws in the back cover as below picture showed; Use tweezer to prize up top cover as the blue arrow direction which showed as below picture and remove the
top cover then unplug the 2P microphone wire

2.) Remove the four screws in C,D,E,F position in the heat sink, then remove the G screw in left side of the unit and the H, I screws which were for fixing the main board; remove the
main board

C E I
G
H
D F

The procedure of disassembling the panel
3
Wiring Diagram

4
CIRCUIT DIAGRAM -MAIN BOARD

5
39R

39R

M1/PAU MENU
SW912 SW901

180R
180R
M2/INT T-DN

R921
R911
SW913 SW902

220R
220R
M3/RPT EQ/AUDIO

R922
R912
SW914 SW903

330R
330R

MAX/SOUND/DBB
M4/RDM

R923
R913

SW915 SW904

470R
470R

T-UP
M5/ST
R924
R914

SW916 SW905

6
680R
680R

M6/PROG BAND
R925
R915

SW917 SW906
1K
1K
CIRCUIT DIAGRAM -PANEL BOARD

R926
R916

SOURCE
SW907
1K5

RETURN
SW908
2K2
R918

DISP
SW909
3K3

ZONE
R919

SW910
PCB LAYOUT-MAIN BOARD TOP SIDE VIEW

7
PCB LAYOUT-MAIN BOARD BOTTOM SIDE VIEW

8
PCB LAYOUT-PANEL BOARD TOP SIDE VIEW

9
PCB LAYOUT-PANEL BOARD BOTTOM SIDE VIEW

10
SET EXPLODER VIEW DRAWING

11
Product Model CE152 Date 2012-5-28
failure
NO. phenomena failure cause remark

a. To check whether the CN501(ISO) connector of the tail of the unit is connect well , Whether it is loose of the 15A fuse of the
ISO, or insert non in place.

b. To check whether there is any contamination and bad contact on the 22Pin male/female connector on the panel and main
1 NO Power board.
c. To check the U602 of voltage regulator IC,the output pin should be +3V3 the input pin should be +11V0.
d. At the unit ACC ON, To check the 36 pin voltage of the U201(MCU) should be low level .
e. To check the oscillation frequence of crystal CF202 shuold be 32.768KHz .

a.To check whether there is any contamination and bad contact on the 22Pin male/female connector of the panel and main
board. If necessary, can exchange the panel to test whether the defective is occurred by the unit or panel.
LCD
2
abnormal b.To Check the voltage of the 56 pin of the IC901(75823) ,should be +5V0.

c.To check the voltage of the L303 of the MAIN board,should be +5V0.
a. To check whether the volume knob is turn to the minimum position.
b. To check whether the unit is at MUTE mode, press SOURCE button and check whether it is effective of the input sound
source.
NO
3 audio c. To check whether the connection of audio output wire of ISO connector is correct; wrong connection or short circuit to the
output ground will caused the protection of the power amplifier( no voltage output).

d . To check the circuit of power amplifier U501(7388 IC) and VOLUME U301(7313 IC).
e. To check the voltage of 22 PIN(MUTE) of power amplifier U501(7388 IC) , normally should be +4V0.
a. To check the antenna of the AM/FM tuner.
b. To check whether the strength of then input signal of the tuner is too weak.
4
c. To check the voltage of the 12 pin 13 pin of the U131 of the tuner IC, should be +3V3.
d. To check the oscillation frequence of crystal XL130 of the tuner IC,shuold be 32.768MHz

12
failure
NO. failure cause remark
phenomena
a. To check whether the USB/SD signal format is correspond to the request of the unit.

b. To check the voltage of the the uppermost pin of the USB connector, should be +5V0.

5 USB defective c. To check whether there is any wearing and scratch of the shrapnel and pin of the panel USB.

d.To check whether there is any contamination and bad contact on the 22Pin male/female connector of the panel and
main board. If necessary, can exchange the panel to test whether the defective is occurred by the unit or panel.

a. To check the SOURCE shoule be in MP3-LINK mode.

b. To check the MP3-LINK input signal.
6 AUX defective
c. To check whether there is any contamination and bad contact on the 22Pin male/female connector of the panel and
main board. If necessary, can exchange the panel to test whether the defective is occurred by the unit or panel.

a Check the unit should be in pair with the BT phone connection status.

7 BT defective b To Check the MIC connector CN801 whether there is poor contact. or insert non in place.

c To check the 4 pin of the BT module,should be +5V0.

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