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CE132/all ,--G,R/all
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DISMANTLING INSTRUCTIONS.................................................2
BLOCK DIAGRAM........................................................................3
WIRING DIAGRAM......................................................................4
MAIN PCB COMPONENT LAYOUT............................................8-9
PANEL PCB COMPONENT LAYOUT.........................................10-11
CIRCUIT DIAGRAM MAIN BOARD.............................................5-6 SET EXPLODER VIEW DRAWING................................................12
CIRCUIT DIAGRAM PANEL BOARD.........................................7 TROUBLE SHOOTING...................................................................13-14
2012-4-26
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
A
B
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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
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C E I
G
H
D F
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The procedure of disassembling the panel
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Wiring Diagram
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CIRCUIT DIAGRAM -MAIN BOARD
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39R
39R
LED 901 BT:
NO BT:
M1/PAU MENU
SW912 SW901
180R
180R
R921
R911
M2/INT T-DN
SW913 SW902
220R
220R
R922
R912
M3/RPT EQ/AUDIO
SW914 SW903
330R
330R
MAX/SOUND/DBB
R923
R913
M4/RDM
SW915 SW904
470R
470R
R924 T-UP
R914
M5/ST
SW916 SW905
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680R
680R
R925
R915
M6/PROG BAND
SW917 SW906
1K
1K
R926
R916
SOURCE
SW907
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CIRCUIT DIAGRAM -PANEL BOARD
RETURN
SW908
2K2
R918
DISP
SW909
3K3
ZONE
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R919
SW910
PCB LAYOUT-MAIN BOARD TOP SIDE VIEW
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PCB LAYOUT-MAIN BOARD BOTTOM SIDE VIEW
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PCB LAYOUT-PANEL BOARD TOP SIDE VIEW
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PCB LAYOUT-PANEL BOARD BOTTOM SIDE VIEW
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SET EXPLODER VIEW DRAWING
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Product Model CE132 Date 2012-4-10
failure
NO. phenomena failure cause remark
a. To check whether the CN1(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 +5V0 the input pin should be +12V0.
d. At the unit ACC ON, To check the 32 pin voltage of the U201(MCU) should be low level .
e. To check the oscillation frequence of crystal CF202 shuold be 12MHz .
a.To check whether there is any contamination and bad contact on the 22Pin male/female connector on the panel and main
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board.
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LCD b.To Check the voltage of the 56 pin of the IC901(75823) ,should be +5V0.
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abnormal c.To check the voltage of the L2 of the TFT board,should be +5V0.
d.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 whether the volume knob is turn to the minimum position.
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NO
audio
output
source.
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b. To check whether the unit is at MUTE mode, press SOURCE button and check whether it is effective of the input sound
c. To check whether the connection of audio output wire of ISO connector is correct; wrong connection or short circuit to the
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.
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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 X131 of the tuner IC,shuold be 32.768MHz
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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 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 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.
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