Pioneer VSX-LX70 Service Manual page 51

5
D
Step 3-6: TMDS(INPUT)
* When connected the source
equipment to IN1/-.
IC1101 (Pins 27,28,
TMDS(HDMI IN1/--) *
30,31,33,34,39,40)
H1
Do signals
No
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
* When connected the source
equipment to IN2/1.
IC1101 (Pins 3,4,
6,7,9,10,45,46)
TMDS(HDMI IN2/HDMI IN1) *
H1
Do signals
No
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
* When connected the source
equipment to IN1,2/-,1.
IC101 (Pins 39,40,
43,44,47,48,51,52) TMDS(Rx0)
D1
Do signals
No
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
* When connected the source
equipment to IN3/2.
IC1151 (Pins 27,28,
TMDS(HDMI IN3/HDMI IN2) *
30,31,33,34,39,40)
H2
Do signals
No
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
* When connected the source
equipment to IN4/3.
IC1151 (Pins 3,4,6,
TMDS(HDMI IN4/HDMI IN3) *
7,9,10,45,46)
H2
Do signals
No
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
* When connected the source
equipment to IN3,4/2,3.
IC101 (Pins 57,58,
TMDS(Rx1)
61,62,65,66,69,70)
D1
Do signals
No
(approx. 0.5 Vp-p)
run in all the
lines?
Yes
5
6
*(LX70/LX60)
VSX-LX70 only
Check the soldering of JA1101.
No
Replace JA1101.
VSX-LX70 only
Check the soldering of JA1102.
No
Replace JA1102.
Check the soldering of IC1101.
No
Replace IC1101.
Check the soldering of JA1151.
No
Replace JA1151.
Check the soldering of JA1152.
No
Replace JA1152.
Check the soldering of IC1151.
No
Replace IC1151.
6
7
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?
Yes
IC201(Pin 9)
Is there a
DATA?
Yes
CN1001(Pin 6)
Is there a
DATA?
Yes
E
VSX-LX70
7
8
TMDS(HDMI OUT)
E9
No
Check the parts and patterns in
the path (IC301 - JA301).
No
Replace IC301.
HDSPDIF (DVD Dolby Digital)
J1
VSX-LX70 only
No
Check the parts and patterns in
the path (IC101 - IC203).
No
Replace IC101.
SPDIF
J2
VSX-LX70 only
Check the parts and patterns in
No
the path (IC203 - IC205).
Check the soldering of IC203,
L203 and R208.
No
Replace IC203.
SPDIF
J3
VSX-LX70 only
Check the parts and patterns in
No
the path (IC205 - IC201).
Check the soldering of IC203,
L203 and R208.
No
Replace IC205.
VSX-LX60 only
No
Check the parts and patterns in
the path (IC101 - IC201).
No
Replace IC101.
SPDIFO
J4
No
Check the parts and patterns in
the path (IC201 - CN1001).
Check the soldering of IC201,
L207, Control Signal.
No
Replace IC201.
8
A
B
C
D
E
F
51