3-20
ONE POINT REPAIR GUIDE
NO OPERATION OF MD
When no sound output in the CD function, you can not listen to music reading data
from a CD disc if the pickup module in MD doesn’t work. This step is for checking the
LASER FOCUSING ACTUATOR.
4-6. LASER FOCUSING ACTUATOR
4-6-1. Solution
Please check and replace IC407, IC408 on MAIN board.
4-6-2. How to troubleshoot (Countermeasure)
The focusing actuator makes the laser beam keep a regular interval with the surface of a CD disc.
1) Check the FOD signal from Pin13 of IC407.
If no signal, check 3.3 V(RF) and X402.
2) Check F- & F+ from IC408 to CN404 for driving the focusing actuator.
If no signal, check +1.8 V and +5 V for IC408.
3) Check if the FFC cable is solidly connected between CN404 and MD.
4) Check the MD.
If the pickup module has any trouble, it can not move the laser beam on the top or bottom side.
Please check the function after changing another MD.
4-6-3. Service hint (Any picture / Remark)
{T
mT Gju[W[
mRGGju[W[
ju[W[
mR
[GGju[W[
mT
XGGju[W[
< Waveform of TR±
for driving FOCUSING actuator >
< Signal check point >
Summary of Contents for RCS606F
Page 25: ...2 16 A60 4 SPEAKER SECTION 4 1 FRONT SPEAKER RCS606F ...
Page 26: ...2 17 A90A LED A90 4 2 PASSIVE SUBWOOFER RCS606W ...
Page 27: ...2 18 MEMO ...
Page 69: ...3 42 MEMO ...
Page 88: ...3 79 3 80 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Page 89: ...3 81 3 82 MAIN P C BOARD BOTTOM VIEW ...
Page 91: ...3 85 3 86 3 VFD P C BOARD BOTTOM VIEW ...
Page 92: ...3 87 3 88 4 VOLUME P C BOARD ...
Page 93: ...3 89 3 90 6 IPOD P C BOARD TOP VIEW BOTTOM VIEW 5 USB MIC P C BOARD TOP VIEW BOTTOM VIEW ...