Pioneer VSX-94TXH Service Manual page 51

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Step 3-6: TMDS(INPUT)
IC1101 (Pins 27,28,
30,31,33,34,39,40)
Do signals
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
IC1101 (Pins 3,4,
6,7,9,10,45,46)
Do signals
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
IC101 (Pins 39,40,
43,44,47,48,51,52) TMDS(Rx0)
Do signals
(approx. 0.5 Vp-p)
run in all the
lines?
TE
Yes
L 13942296513
IC1151 (Pins 27,28,
30,31,33,34,39,40)
Do signals
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
IC1151 (Pins 3,4,6,
7,9,10,45,46)
Do signals
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
IC101 (Pins 57,58,
61,62,65,66,69,70)
Do signals
www
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
.
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*(94TXH/92TXH)
* When connected the source
equipment to IN1/-.
TMDS(HDMI IN1/--) *
H1
VSX-94TXH only
No
Check the soldering of JA1101.
No
Replace JA1101.
* When connected the source
equipment to IN2/1.
TMDS(HDMI IN2/HDMI IN1) *
H1
No
Check the soldering of JA1102.
No
Replace JA1102.
* When connected the source
equipment to IN1,2/-,1.
D1
No
Check the soldering of IC1101.
No
Replace IC1101.
* When connected the source
equipment to IN3/2.
TMDS(HDMI IN3/HDMI IN2) *
H2
No
Check the soldering of JA1151.
No
Replace JA1151.
* When connected the source
equipment to IN4/3.
TMDS(HDMI IN4/HDMI IN3) *
H2
No
Check the soldering of JA1152.
No
Replace JA1152.
* When connected the source
equipment to IN3,4/2,3.
TMDS(Rx1)
D1
No
Check the soldering of IC1151.
x ao u163
No
y
Replace IC1151.
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Step 3-7: TMDS(OUTPUT)
JA301(Pins 1,3,4,6,
7,9,10,12)
Do signals
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
Step 3-8: AUDIO CLK,DATA
(HDMI, AMP MODE)
IC203(Pin 2)
Is there a
DATA?
Yes
IC205(Pin 2)
Is there a
DATA?
Q Q
3 6 7 1 3 1 5
Yes
IC201(Pin 9)
Is there a
DATA?
Yes
CN1001(Pin 6)
Is there a
DATA?
Yes
IC201(Pin 9)
Is there a
DATA?
Yes
co
E
.
VSX-94TXH
7
8
9 4 2 8
TMDS(HDMI OUT)
E9
No
Check the parts and patterns in
the path (IC301 - JA301).
Replace IC301.
HDSPDIF (DVD Dolby Digital)
J1
No
Check the parts and patterns in
the path (IC101 - IC203).
Replace IC101.
SPDIF
J2
Check the parts and patterns in
No
the path (IC203 - IC205).
Check the soldering of IC203,
0 5 8 2 9 9 4 2 8
L203 and R208.
Replace IC203.
SPDIF
J3
Check the parts and patterns in
No
the path (IC205 - IC201).
Check the soldering of IC203,
L203 and R208.
Replace IC205.
SPDIFO
J4
No
Check the parts and patterns in
the path (IC201 - CN1001).
Check the soldering of IC201,
L207, Control Signal.
Replace IC201.
No
Check the parts and patterns in
the path (IC101 - IC201).
m
Replace IC101.
9 9
A
No
B
No
C
9 9
No
D
No
No
E
No
F
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