106
I2C communication wave form (sample)
CLK
DATA
AUDIO/VIDEO UNIT flaw.
B
NO
NO
YES
YES
Extend DIGITAL UNIT using a jig.
Power supply IC (U3701 or U3702) flaw.
Defective connection of N4004 or N4007.
Video selector IC (U3703) flaw.
Input terminal (K3503) or the parts of
between video selector IC (U3703) flaw.
Defective connection of N4004 or N4007
or the parts of between video selector IC
(U3703) flaw.
DIGITAL UNIT flaw.
Check the signal output from video selector IC (U3703).
V (to Monitor out)
:
R3740
Q3
V (to Z2 Monitor out)
:
R3731
Q4
V (to Media Player out)
:
R3733
Q5
V (to DIGITAL UNIT)
: R3736
Q6
COMPONENT-Y (to Monitor out)
: R3742
Q7
COMPONENT-Cb (to Monitor out)
:
R3746
Q8
COMPONENT-Cr (to Monitor out)
:
R3750
Q9
COMPONENT-Y (to Z2 Monitor out)
: R3762
W0
COMPONENT-Cb (to Z2 Monitor out) :
R3745
W1
COMPONENT-Cr (to Z2 Monitor out)
:
R3749
W2
COMPONENT-Y (to DIGITAL UNIT)
: R3744
W3
COMPONENT-Cb (to DIGITAL UNIT) : R3748
W4
COMPONENT-Cr (to DIGITAL UNIT) : R3752
W5
refer to AVIDEO test point (page 107 ).
Check the signal input to video selector IC (U3703).
from input terminal
from DIGITAL UNIT
V
: C3714
t
C3033
o
COMPONENT-Y
:
C3705
y
C3034
Q0
COMPONENT-Cb :
C3706
u
C3035
Q1
COMPONENT-Cr :
C3707
i
C3036
Q2
refer to AVIDEO test point (page 107 ).
Check power supply voltage and I2C
control signal of video selector IC
(U3703).
V+3.3V
: C3748 +
q
V-5V
: C3749 -
w
I2C (SCL) : C3732
e
I2C (SDA)
: C3733
r
refer to AVIDEO test point (page
107 ).
NO
Video selector IC (U3703) flaw.
YES
Output terminal (K3503 or K3504 or K3502) flaw.
Defective connection of TV Monitor or TV Monitor flaw.
Содержание AVR-4520
Страница 32: ...32 Personal notes...
Страница 102: ...102 Personal notes...
Страница 124: ...124 LEVEL DIAGRAM FRONT ch I V I V GAIN ADJ ANALOG ATT SPEAKER OUT REC OUT LEVEL DIAGRAM...
Страница 125: ...125 LEVEL DIAGRAM CENTER ch I V I V GAIN ADJ SPEAKER OUT...
Страница 126: ...126 LEVEL DIAGRAM SUBWOOFER ch I V I V 10dBFS DD IN Config1 GAIN ADJ SPEAKER OUT...
Страница 127: ...127 LEVEL DIAGRAM SURROUND ch I V I V GAIN ADJ SPEAKER OUT...
Страница 128: ...128 LEVEL DIAGRAM SURR BACK ch I V I V GAIN ADJ SPEAKER OUT...
Страница 129: ...129 LEVEL DIAGRAM FRONT HEIDHT ch I V I V GAIN ADJ SPEAKER OUT...
Страница 130: ...130 LEVEL DIAGRAM FRONT WIDE ch I V I V GAIN ADJ SPEAKER OUT...
Страница 131: ...131 LEVEL DIAGRAM ZONE2 3...
Страница 183: ...183 Personal notes Personal notes...
Страница 195: ...195 R5F3650NNFB DIGITAL U2101...
Страница 209: ...209 MX29LV160DBTI 70G NETWORK DSP U0103 U0203 U0303 MX29LV160DBTI 70G Block Diagram...
Страница 213: ...213 AK5358BET DIGITAL U0141 AK5358BET Pin Function...
Страница 218: ...218 ADV7850KBCZ 5 DIGITAL U1102 ADV7850...
Страница 236: ...236 2 FL DISPLAY FLD 17 BT 40GINK SPK SMPS Z6801 PIN CONNECTION GRID ASSIGNMENT Y2 q...
Страница 237: ...237 ANODE CONNECTION...