Trouble Shooting Guide
MP3/CD Section
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
5. Spindle motor rotation
6. Read in operation
RF:0.8V ~ 1.2V
Spindle motor
rotation
Yes
no
1. Check SPDO +1.9V(IC501 LC786951 41pin) >>> in
case of play
。
2. Check IC503 BA5927FM 20pin SL+ 4.7V,
19pin SL- 4.5V.21pin SP- 4.3V, 22pin SP+ 4.8V
。
Read in
operation
no
1.Check RFO eye pattern 0.8V ~ 1.2V (IC501 LC786951
8pin)
Read in CD/MP3
disc
Yes
no
Yes
Read in USB file
Yes
no
1. Check +3.3V(IC502 LC87F1HC8A 3pin, 8pin,19pin,39pin)
2. Check XC502:12MH
Z
3. Check CD Board(IC504 Around pin solder short,
cold soldering )
1. Check +9V(CN509 of 4pin).
2. Check +3.3V (IC501 of 59pin,80pin,109pin,124pin).
3. Check XC501:16.9344MHZ
4. Check (IC503 BA5927FM 21pin,22pin)SP- 4.3V , SP+ 4.8V
5. Check SPDO +1.9V (IC501 LC786951 41pin)
6. Check (IC503 BA5927FM 19pin, 20pin)SL- 4.5V,SL+ 4.7V.
7. Check CD Board(Around IC solder short,cold soldering )
USB Encoding
no
1. Check IC506 (NJM4558) 4pin(-9V),8pin(9V).
2. Check IC506(NJM4558) 3pin,5pin input signal.
3. Check IC506(NJM4558) 1pin,7pin output signal.
4. Check IC505(AK5358) 6pin(5V),7pin(3V).
5. Check IC505(AK5358) 1pin,2pin input signal.
6. Check IC504(A2V64S40CTP) Around pin solder short,
cold soldering )
Summary of Contents for EKE
Page 1: ...Service Manual Mini Component Sound System 9CD8308000 May 2009...
Page 18: ...Exploded View and Mechanical Parts List 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 9...
Page 27: ...1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 9 Title P C B Pattern Layout FRONT Section Top View...
Page 28: ...FRONT Section Bottom View 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 9 Title P C B Pattern Layout...
Page 30: ...Title P C B Pattern Layout MP3 CD Section Top View 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 9...
Page 31: ...Title P C B Pattern Layout MP3 CD Section Bottom View 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 9...
