Pioneer KRL-46V Service Manual page 50

1
A
Does not the picture of the HDMI signal input to INPUT4 go out?
MINI AV_UNIT:
Is the HOT_PLUG detection function of pin (19) of a HDMI termi-
nal (SC801) normal?
B
Are EDID data pin (6)/SCL of IC802 (EEPROM), pin (5) / SDA
accessed, and is it read from pin (15), (16) of a HDMI terminal
(SC801)?
Is TMDS signal input into pin (28, 27)/RXC±, (30, 29)/RX0±, (33,
32)/RX1±, (35, 34)/RX2± of IC803 (HDMI_BUFFER) of IC803
from SC801?
C
Is TMDS signal output into pin (11, 12), (8, 9), (5, 6), (2, 3) of the
connector SC802 from pin (8, 9)/CLK±, (6, 7)/DAT0±, (3, 4)/
DAT1±, (1, 2)/DAT2± of IC803?
Is TMDS signal input into pin(59,58)/TMDS6_CLK±, (62, 61)/
TMDS6_D0±, (65, 64)/TMDS6_D1±, (68, 67)/TMDS6_D2± of
IC1507?
Is each signal output from pin (10, 11)/TMDS_CLKP/N, (7, 8)/
TMDS_D0P/N, (4, 5)/TMDS_D1P/N, (1, 2)/TMDS_D2P/N, (77,
78)/SDA_SINK/SCL_SINK, (79)/DDC5VOR_A of IC1507?
D
Is each signal of IC3301 (VIDEO_PROCESSOR) pin (L1, L2)/TMDS_CLKP/N, (M1, M2)/TMDS_D0P/N, (N1, N2)/TMDS_D1P/N, (P1, P2)/
TMDS_D2P/N, (T11, U11)/SDA_SINK/SCL_SINK, (T10)/DDC5VOR_A input?
Refer to "The picture doesn't appear in all
E
F
50
1
2
<When INPUT4 is used for external input> No picture on the display (9)
YES
YES
YES
YES
YES
YES
YES
m o d e s " .
2
3
NO Check the between pin (25) of IC803 (HDMI_BUFFER) and pin
(19) of SC801. (IC807, etc.)
Check the connection and setup with the external HDMI devices.
NO Is access possible in the re-writing or exchange of EDID data of
IC802?
Check SC801, IC802, IC803 and peripheral circuits.
NO Check the line between SC801 and IC803.
NO Check the line between IC803 and SC802.
NO Check the line between connector (SC802) and IC1507.
(SC802, SC1503 and Wire harness (HM))
NO Is the control signal named IC1507 and IC9101 (CPLD) normal?
(HDMI_SW_INT, HDMI_RST, etc.)
C h e k c h t e n i l e b e w t
KRL-46V
3
4
NO
NO
e e n S C 1 1 0 1 a n d C I 3 3 0 . 1
4