Pioneer VSX-LX60, Руководство по обслуживанию

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VSX-LX70
57
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Step 5-1: Power supply
O1
Is the voltage
3.3V ?
No
Check L1302.
No
Replace L1302.
Check L1303.
No
Replace L1303.
Yes
Yes
3.3V (Scaler)
O2
Is the voltage
3.3V ?
No
Check L1301.
No
Replace L1301.
Yes
1.8V (Scaler)
O3
Is the voltage
1.8V ?
No
Check L1304.
No
Replace L1304.
Yes
1.8V (Scaler)
O4
Is the voltage
1.8V ?
No
Check L1305.
No
Replace L1305.
Yes
1.8V (Scaler)
O5
Is the voltage
1.8V ?
No
3.3V (Scaler)
Check L1351.
No
Replace L1351.
Check X1301.
No
Replace X1301 or IC1301.
3.3V (SDRAM)
O6
Is the voltage
3.3V ?
No
Step 5-2: X ' tal, Reset
X1301
X ' tal
P1
No
Yes
Yes
IC1301(Pin 47)
XVCRST
P2
Is the voltage
" H " (3.3V) ?
No
Check the parts and patterns in
the path(IC501 - IC1301).
No
Replace IC501.
Yes
IC1301(Pin 46)
VCSDA
P2
No
Check the parts and patterns in
the path(IC501 - IC1301).
No
Replace IC501 or IC1301.
Yes
IC1301(Pin 45)
VCSCL
P2
No
Check the parts and patterns in
the path(IC501 - IC1301).
No
Replace IC501 or IC1301.
Yes
H
Scaler section
Is oscillation
of 13.5 MHz
output ?
Does
a clock output in
constant period
(0 - 3.3 V)
?
Does
a signal output in
constant period
(0 - 3.3 V)
?
IC1301(Pins 21-28) P12-19
*Skip at analog 480i/576i input.
P2
Is there a
DATA ?
No
Yes
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).
Step 5-3: INPUT
IC1301(Pin 4)
LLC
P2
Is there a
CLK ?
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).
No
Yes
IC1301(Pins 29,
32-35,38-40)
P22-29
P2
Is there a
DATA ?
No
Yes