Pioneer VSX-94TXH Service Manual page 52

1
QQ
E
3 7 63 1515 0
A
HDMCLK
IC202(Pin 1)
No
Is there a
CLK?
Yes
MCLK
IC204(Pin 2)
No
B
Is there a
CLK?
Yes
MCLK
IC201(Pin 2)
No
Is there a
CLK?
Yes
C
MCLKO
IC1001(Pin 15)
No
Is there a
TE
L 13942296513
CLK?
Yes
WS.SCK
IC201(Pins 7,8)
D
No
Is there a
CLK?
Yes
SD0-3
IC201(Pins 3,4,5,6)
No
Is there a
DATA?
Yes
E
BCKO,LRCKO
CN1001
(Pins 12,13)
No
Is there a
CLK?
www
Yes
F
52
1
http://www.xiaoyu163.com
2
(DVD-A/Multi ch)
J5
Check the parts and patterns in
the path (IC101 - IC202).
No
Replace IC101.
J6
Check the parts and patterns in
the path (IC202 - IC204).
Check the soldering of IC202,
L201.
No
Replace IC202.
J3
Check the parts and patterns in
the path (IC204 - IC201).
Check the soldering of IC204,
L202, Q201.
No
Replace IC204.
J4
Check the parts and patterns in
the path (IC201 - CN1001).
Check the soldering of IC201,
L207, Control Signal.
J3
Check the parts and patterns in
the path (IC101 - IC201).
No
Replace IC101.
(DVD-A/Multi ch)
J3
Check the parts and patterns in
the path (IC101 - IC201).
No
Replace IC101.
A1
Check the parts and patterns in
the path (IC201 - CN1001).
Check the soldering of IC201,
L207, Control Signal.
No
x ao
Replace IC201.
y
. i
VSX-94TXH
2
http://www.xiaoyu163.com
3
8
CN1001
(Pins 8-11)
Is there a
DATA?
Yes
CN1001(Pin 17)
Is the voltage
"L" (0 V)?
Yes
Diagnose the INTERFACE ASSY or
DIGITAL MOTHER ASSY or DSP ASSY.
Step 3-9: AUDIO CLK DATA
(HDMI, THROUGH MODE, ANALOG
VIDEO FUNCTION)
CN1002(Pin 29)
Q Q
3 6 7 1 3
Is there a
CLK?
Yes
CN1002(Pins 26,28) THLRCK, THBCK
Is there a
CLK?
Yes
CN1002(Pin 27)
Is there a
DATA?
Yes
IC301(Pin 5)
Is there a
CLK?
Yes
u163
F
.
3
4
2 9 9 4 2 8
SD0-3O
A1
Check the parts and patterns in
No
the path (IC201 - CN1001).
Check the soldering of IC201,
L207, Control Signal.
No
Replace IC201.
HDMUTE
A1
No
Check the parts and patterns in
the path (IC501 - CN1001).
No
Replace IC501.
HTMCK
A2
No Diagnosis the INTERFACE ASSY
1 5 0 5 8 2 9 9 4
or DIGITAL MOTHER ASSY.
A2
No Diagnosis the INTERFACE ASSY
or DIGITAL MOTHER ASSY.
THDATA
A2
No Diagnosis the INTERFACE ASSY
or DIGITAL MOTHER ASSY.
MCLK
D2
No
Check the parts and patterns in
the path (CN1002 - IC251 and
IC251 - IC301).
m
No
Replace IC251.
co
4
9 9
2 8 9 9