VSX-52TX
129
5
6
7
8
5
6
7
8
C
D
F
A
B
E
(SurroundBack is not out with the setting.)
• Suppose CR to be poor contact and that is not damaged.
• This shows failure analysis of DSP Assy.
• When MCACC is turned to ON
• Tighten the COAX Jack screws.
(GND of the DSP module floats from the chassis. And this unit
may not work normally, because the electric potential becomes
unstable.)
Step 0: Preliminary check
Step 3: Regulator IC
Step 4: 3
→
5V conversion
MUTE (pin 54)
IC901-pin 1 (to chassis)
Is
there the input
of 5V ?
Check CN901 and
REGULATOR Assy
Is 3.3V
outputting it ?
IC901-pin 3 (to chassis)
IC902-pin 2 (to chassis)
No
Replace IC901
No
Yes
Is 1.25V
outputting it ?
Replace IC902
Replace IC952
No
Yes
A
Step 1: Mute pin
Step 2: B to B connector
IC801
End
Is
output signal
0V ?
Replace IC801
No
Yes
CN901
CN701
Is
connector
inserted
tight ?
Turn the power off and
Insert it tight
No
Yes
IC952
Pin 3
Does
it convert
3V into 5V for
17 pin input?
No
Yes
Replace IC952
Pin 5
Does
it convert
3V into 5V for
15 pin input?
No
Yes
Replace IC952
Pin 7
Does
it convert
3V into 5V for
13 pin input?
No
Yes
CN951
Is
connector
inserted
tight ?
Turn the power off and
Insert it tight
No
Yes
Is
connector
inserted
tight ?
Turn the power off and
Insert it tight
No
Yes
End
Yes
End
Содержание 1014TX-K - THX Select A/V Receiver
Страница 23: ...VSX 52TX 23 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 35: ...VSX 52TX 35 5 6 7 8 5 6 7 8 C D F A B E F Y PB PR MONITOR OUT COMPONENT VIDEO CN2503 W CN893 E 1000 10 1k ...
Страница 44: ...VSX 52TX 44 1 2 3 4 1 2 3 4 C D F A B E 3 11 DSP ASSY 1 2 M 1 2 CN961 G IN3 DVD LD IN4 CD DIGITAL D D D ...
Страница 46: ...VSX 52TX 46 1 2 3 4 1 2 3 4 C D F A B E 3 12 DSP ASSY 2 2 M 2 2 CN2522 W M 2 2DSP ASSY AWX8414 ...
Страница 47: ...VSX 52TX 47 5 6 7 8 5 6 7 8 C D F A B E M 2 2 ...
Страница 53: ...VSX 52TX 53 5 6 7 8 5 6 7 8 C D F A B E CN4401 Q CN2103 AB CN2101 AB CN2103 AB CN2002 AB S ...
Страница 55: ...VSX 52TX 55 5 6 7 8 5 6 7 8 C D F A B E CN4451 Q U CN2104 AB CN2104 AB CN2102 AB 2001 AB ...
Страница 113: ...VSX 52TX 113 5 6 7 8 5 6 7 8 C D F A B E 6 ADJUSTMENT There is no information to be shown in this chapter ...