Sony KDL-42W800A Service Manual page 90

Troubleshooting
3-3-4. Main Board Power On Checking (for Main SP Lch & Rch)
No Checking Item
5 Check CL4605,
CL4606, CL4607
6 Check CL4601,
CL4602, CL4603,
CL4604
OK
Vdc = 3.3V ± 0.3V
CL4601 = 12.288MHz
CL4603 = 3.072MHz
CL4604 = 48KHz
CL4602 = moving CLK
All Vp-p ≈ 3.3V
If  NG
NG
Vdc < 0.8V CL4606 NG,
Check IC4601
If no frequency at CL4601, If sound source OK,
CL4603, CL4604, Ayu2 IC but CL4602 = NG,
(IC9000) NG. Ayu2 IC (IC9000) NG.
If no frequency at CL4602,
make sure sound source
OK.
W800A/W801A/W802A/W804A/W805A/W806A/W807A/W808A/W809A
If  NG
CL4605,4607 NG,
Check IC9000
Size
OTHERS
42 BA2S
Note: Note:
47 BA2S
(AYU2) – IC9000
(Brownie)- IC9001
55 BA2S
RB1G CHASSIS
B* Board Type
JAPAN
BA2W
BA2W
BA2W
90