Pioneer VSX-1018AH-K, Руководство по обслуживанию

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48
VSX-LX51
1 2 3 4
A
B
C
D
E
F
1 2 3 4
Step 5-1: Power supply
Is the voltage
3.3V?
No
Check the L1302.
No
Replace L1302.
Check the L1301.
No
Replace L1301.
Is the voltage
1.8V?
No
Check the L1305.
No
Replace L1305.
Is the voltage
1.8V?
No
Check the L1351.
No
Replace L1351.
Is the voltage
3.3V?
No
Yes
C
Scaler section
IC1301 (Pins 21-28) P12-19
*Skip at analog 480i/576i input.
O
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
O
C1302
3.3V (Scaler)
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
O
Is there a
DATA?
No
Yes
Yes
1.8V (Scaler)
C1301
Yes
1.8V (Scaler)
C1305
3.3V (SDRAM)
Yes
C1351
IC1301 (Pin 1)
HS
O
Is there a
HSYNC?
No
Yes
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).
M1
M2
M3
M4
Check the X1301.
No
Replace X1301 or IC1301.
Step 5-2: X'tal
X1301
X'tal
N
No
Yes
Is oscillation
of 13.5 MHz?
Yes
IC1301 (Pin 2)
VS
O
Is there a
VSYNC?
No
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).