Samsung S5660 Block Diagram 7
8. Level 3 Repair
8-1.Block Diagram
8-1
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Level 3 Repair
8-2. PCB Diagrams
8-2-1. Top
8-2
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Level 3 Repair
8-2-1. Bottom
8-3
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Level 3 Repair
8-3. LOGIC
8-3-1. Power On
Power switch on
NG
Check the current consumption >= 100mA?
Yes
Check the battery voltage
>= 3.45?
Yes
Check the R410_T
P_PS_HOLD pin P
S_HOLD = 2.6V?
Yes
Check the clock at
OSC400 = 32KHz ?
Yes
C441(VREG_MSMC1)=1.2V?
C440(VREG_MSMC2)=1.2V?
C439(VREG_MSME)=1.8V?
C410(VREG_MSMP)=2.6V?
C411(VREG_MSMA)=2.6V?
Yes
Check the clock
C117 = 19.2Mhz ?
Yes
Check the initial operation
NO |
Download |
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NO |
Change the battery |
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NO |
Check the PMIC |
related to PS_HOLD
NO |
Resolder OSC400 |
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NO
Check the U400
NO
Check the clock generation circuit
8-4
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This Document can not be used without Samsung's authorization
Level 3 Repair
8-5
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This Document can not be used without Samsung's authorization
Level 3 Repair
8-6
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This Document can not be used without Samsung's authorization
Level 3 Repair
8-3-2. LCD Working
Power Switch On
LCD Display
On? NO
Yes
Yes
C526
LED_P_26V=26V?
LCD FPCB connector is co rrectly connecti ned?
Yes
F600, F601, F602, F603, F604, F605, F606 Correctly mounted?
correctly connect
NO
F600, F601, F602,
F603, F604, F605,
F606 Resolder
NO
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Yes |
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NO |
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LCD |
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Replace U505 |
& |
Check |
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Replace |
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neighboring circuits |
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8-7
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This Document can not be used without Samsung's authorization
Level 3 Repair
8-8
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This Document can not be used without Samsung's authorization
Level 3 Repair
8-9
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This Document can not be used without Samsung's authorization
Level 3 Repair
8-3-3. TSP
Operate TSP
NG |
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NO |
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Reconnecting TSP |
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TSP Connecting |
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YES |
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Change TSP Module |
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No Problem? |
NO |
Change main PBA |
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END
8-10
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This Document can not be used without Samsung's authorization
Level 3 Repair
8-3-3. Audio Working
Speaker Working
Operate speaker
NG
Check |
NO |
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Speaker |
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Resolder |
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Connector |
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YES
Speaker break |
YES |
Change Speaker |
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down? |
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NO |
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Signal on in |
YES |
Resolder |
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L508,L509 |
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L508, L509? |
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SPK ASSY |
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NO
Signal on in |
YES |
Resolder |
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C406, C407 |
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C406, C407? |
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Replace U400 |
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7 |
NO
Change main PBA
8-11
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This Document can not be used without Samsung's authorization
Level 3 Repair
C518
L508
Z 5D 70
AMP_POUT 
C519
AMP_NOUT 
L509
C524
DZ 5 80
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SPK500 |
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1 |
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3 |
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NC NCNCNC |
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8-12
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Level 3 Repair
8-13
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Level 3 Repair
Receiver Working
Operate Receiver
NG
Check |
NO |
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Receiver |
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Resolder |
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Connector |
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YES
Receiver break |
YES |
Change Receiver |
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down? |
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NO |
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Change main PBA
8-14
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This Document can not be used without Samsung's authorization
Level 3 Repair
MIC Working
Operate MIC
NG 
Pollute
MIC Hole?
NO 
Signal on in
C503, C504 ?
YES 
Check Voltage
of L512, C508
L512 & C508's
Voltage
YES 
Signal on in
C513, C528,
R524 ?
YES 
Change main PBA
YES |
Clean up |
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MIC hole |
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NO
Change UCP300
NO
NO |
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Resoldering |
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C513, C528 |
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R524 |
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8-15
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This Document can not be used without Samsung's authorization
Level 3 Repair
VMIC_BIAS_1.8V
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L512 |
MIC500 |
C503 |
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POWER |
1 |
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GND |
2 |
MIC_N |
GND |
3 |
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OUT |
4 |
MIC_P |
C504
40 |
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R524 |
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SHORT |
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D5 |
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C508 |
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Z |
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C528 |
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C513 |
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8-16
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Level 3 Repair
Stereo Headset Working
Hands-free stereo headset
NG
YES
Button NG? |
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Check U506 |
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NO
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YES |
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Check |
NO |
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MIC NG? |
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Check U506 |
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L501 |
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NO |
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YES |
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Resolder L501 |
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YES |
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Signal on |
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YES |
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SPK NG? |
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Check L503, L505, |
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in ZD503? |
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NO |
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NO |
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Signal on |
YES |
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Check R405, R406, |
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in C408 |
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U400 |
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C409? |
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The End |
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NO |
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Change Main PBA |
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8-17
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
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