RB1G CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
95
Troubleshooting
3-3-4. Main Board Power On Checking (for Main SP Lch & Rch)
No Checking Item OK NG If
NG If
NG
5 Check CL4605,
CL4606, CL4607
Vdc = 3.3V ± 0.3V Vdc < 0.8V CL4606 NG,
Check IC4601
CL4605,4607 NG,
Check IC9000
6 Check CL4601,
CL4602, CL4603,
CL4604
CL4601 = 12.288MHz
CL4603 = 3.072MHz
CL4604 = 48KHz
CL4602 = moving CLK
All Vp-p ≈ 3.3V
If no frequency at CL4601,
CL4603, CL4604, Ayu2 IC
(IC9000) NG.
If no frequency at CL4602,
make sure sound source
OK.
If sound source OK,
but CL4602 = NG,
Ayu2 IC (IC9000) NG.
Size B* Board Type
(Segment: LW)
OTHERS EUROPE JP
32” BKX BKE BKJ
42” BKX BKE BKJ
Note:
(AYU2) – IC9000
(Brownie)- IC9001
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