Service Manuals, User Guides, Schematic Diagrams or docs for : Philips Car Audio CEM2101 service
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CEM2101R/51
DISMANTLING INSTRUCTIONS............................................2 MAIN PCB COMPONENT LAYOUT.........................................10-11
BLOCK DIAGRAM...................................................................3 PANEL PCB COMPONENT LAYOUT.......................................12-13
WIRING DIAGRAM.................................................................4 TUNER PCB COMPONENT LAYOUT........................................14-15
CD CONNECTOR PCB COMPONENT LAYOUT.......................16
CIRCUIT DIAGRAM MAIN BOARD.......................................5-7
ISO PCB COMPONENT LAYOUT..............................................17
CIRCUIT DIAGRAM PANEL BOARD......................................8
SET EXPLODER VIEW DRAWING.............................................18
CIRCUIT DIAGRAM TUNER BOARD.......................................9 TROUBLE SHOOTING................................................................19-20
2012-6-15
The procedure of disassembling the unit
1.Press EJ button and take out panel remove A screw in top cover of the unit;
Use tweezer to prize up top cover as the blue arrow direction which showed as below picture
A
EJ
2) Remove B,C screws in left and right side of metal bracket; Then remove D,E screws in panel base;Remove deck mechanism
B
C
D E
The procedure of disassembling the panel
2
3
WIRING DIAGRAM
4
CIRCUIT DIAGRAM -MAIN BOARD
5
6
7
CIRCUIT DIAGRAM -PANEL BOARD
8
CIRCUIT DIAGRAM -TUNER BOARD
R014 XT001
100 C009
32.768KHz
C008 22P
R001 22P
270K
24 23 22 21 20 19
C001 L001 C004 Q001 C006
C003
NC
NC
GP01
INT
DCLK
R003
NC
1 FMI DFS 18
220NH 30P 47 47P
30P 30P
L003 RFGND
L002 2 DO 17
C002 SK255 2.7UH
15P 220NH
3 AGC IC001 LOUT 16
R002 C005
4K7 103 4 CTUNE SI474X 15
ROUT
5 RF-GND GND 14
C017 L006
AM
SCLK
RCLK
AMI
SDIO
6 13
RST
VDD
SEN
VIO
183 33UH
Q102/Q003
L004 L005 7 8 9 11 12
C013 10 C025
C007 1UF
333 9014S 1MH
FB152 104 C020
C014 R005 C112
122 R006 103 104
C011
10M 220K C018
R007 L008 L010 103
Q004 104
Q002 4K7 FB152
R004 9014S FB152 L009
9018S R008 C019
C016
10K C015 FB152
104 4K7 474
474
L007
220UH
R009 C020 C021
R010
104 1U
10K 10 EC001
47UF
R011
R012
R013
100
100
100
1 2 3 4 5 6 7 8 9 10 11 12
FM ANT
RFGND
RFGND
DGND
L-OUT
DATA
R-OUT
RDS
GND
+3V3
CLK
RES
CN001 TUNER23
9
PCB LAYOUT -MAIN BOARD TOP SIDE VIEW
10
PCB LAYOUT -MAIN BOARD BOTTOM SIDE VIEW
11
PCB LAYOUT -PANEL BOARD TOP SIDE VIEW
12
PCB LAYOUT -PANEL BOARD BOTTOM SIDE VIEW
13
PCB LAYOUT -TUNER BOARD TOP SIDE VIEW
14
PCB LAYOUT -TUNER BOARD BOTTOM SIDE VIEW
15
PCB LAYOUT CD CONNECTOR TOP SIDE VIEW
16
PCB LAYOUT-ISO BOARD BOTTOM SIDE VIEW
17
SET EXPLODER VIEW DRAING
18
Product
Model CEM2101 R Area Date 2012-6-20
failure
NO. phenomena
failure cause remark
a. To check whether it is connect well of the ISO connector (4PIN power input ). Whether it is loose of the 15A
fuse of the ISO connector, or insert non in place.
b. To check whether the reset button Sw201 is long term functional then caused short circuit and no power.
c. To check whether there is any contamination and bad contact on the 22 Pin male/female connector on the
panel and main board.
1 d. To check the power supply of main board B+ ACC should be +12V; The voltage of stabilivolt of ACC power
NO Power supply wire ZD210 (6V8) should be 6V8.
e. To check the voltage of the 19 pin (AVDD) of MCU (T5CL8) should be +3V3; The output voltage of IC307
(LM2950) should be +3V3.
f. To check the oscillation frequence of crystal X201 , shuold be 8MHz, and for the crystal X202 should be
32.768KHZ.
g. To check Panel LED +5V voltage , should be normal.
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.
c. To check whether the connection of 8PIN audio output wire of ISO connector is correct; wrong connection or
2 NO audio short circuit to the ground will caused the protection of the power amplifier( no voltage output).
output d . To check the circuit of power amplifier IC501 (TDA7388) and VOL IC403 (7313IC).
e. To check the normal voltage of 22 PIN(MUTE) of power amplifier IC501(TDA7388) , normally should be 4V.
f. To check the voltage of control PIN SDA SCL the 27 28pin of audio processor IC403 7313 IC ,
should be +3V3.
a. To check the antenna of the tuner.
b. To check whether the strength of then input signal of the tuner is too weak.
c. To check the voltage of the 7 pin(VDD) of the tuner , should be +3V3.
3 d. To check the voltage of the 10 pin(RES) of the tuner, should be +3V6; the 11 pin(CLK) should be +3V1; the 12
pin(date) should be +2V8.
e. To check the oscillation frequence of crystal XT001 of the tuner, should be 32.768KHZ.
f. To check the L output voltage of the 5 pin of tuner should be 1V5, the 6 pin R output voltage , should be 1V5.
19
NO. failure failure cause remark
a. To check whether the signal format of the disc is correspond to the request of the unit, whether there is any
contamination or damage or light leakage on the surface of the disc.
b. To check whether there is any abnormal of the rotation of the deck mecahnism, or whether the disc is enter in
position.
c. To check whether it is normal when reading USB?
d. To check whether the 17 P FFC of laser pick up is inserted in place, whether the socket of it is loose.
e. To check whether there is any contamination or foreign body on the surface of the laser pick up.
f. To check the servo connector of CON601 CON602.
4 g. To check the oscillation frequence of crystal X602 , should be 16.9344M.
h. To check the oscillation frequence of crystal X603 , should be 9MHZ.
i. To check the voltage of the 50 pin of IC 602, should be 3.3V.
j. To check the switch S601 on the servo board.
k. To check the rotation mechanism of CD deck mechanism.
l. To check the voltage of the 8 pin of IC 603, should be +7.3V.
m. To check whether the rotation belt of deck mechanism is dislocation or loose.
a. To check whether the USB 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 +5V.
c. To check the voltage of the first pin of main board IC604 , should be +3V3, when insert USB, the voltage of the second
pin should be +3V, if no insert the USB, the voltege should be 0V.
5 USB
defective d. To check whether there is any wearing and scratch of the shrapnel and pin of the USB.
e. To check the oscillation frequence of the 7 pin of main board IC604, should be 32.768KHZ.
f. To check whether there is any contamination and bad contact on the 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 AUX IN input signal
6 AUX
defective c. To check whether there is any contamination and bad contact on the 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.
20
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