NAD T748 Service Manual page 59

SCHEMATIC DIAGRAM ( HDMI - INPUT PART )
CEC
#21: HPD Part
KRA102S
Q9211
Q9212
KRC103S
HP DET
R9213 22K
+5V
GND
C9211 0.1uF R9214 47K R9216 10K_NC
DDC DATA
DDC CLK
NC
#7: Added pull-up
CE REMOTE
CK-
D1 SHIELD
CK+
D0-
D1 SHIELD
D0+
D1-
D2 SHIELD
D1+
D2-
D2 SHIELD
D2+
#21: HPD Part
Q9213
KRA102S
Q9214
KRC103S
HP DET
R9220 22K
+5V
R9221 R9223
GND
C9212 0.1uF
47K 10K_NC
DDC DATA
DDC CLK
NC
#7: Added pull-up
CE REMOTE
CK-
D1 SHIELD
CK+
D0-
D1 SHIELD
D0+
D1-
D2 SHIELD
D1+
D2-
D2 SHIELD
D2+
#21: HPD Part
Q9215
KRA102S
Q9216
KRC103S
HP DET R9227 22K
+5V
R9228
GND
C9213 0.1uF
47K R9230 10K_NC
DDC DATA
DDC CLK
NC
#7: Added pull-up
CE REMOTE
CK-
D1 SHIELD
CK+
D0-
D1 SHIELD
D0+
D1-
D2 SHIELD
D1+
D2-
D2 SHIELD
D2+
#21: HPD Part
Q9217
KRA102S
Q9218
KRC103S
R9234
HP DET
22K
+5V
R9237
GND
C9214 0.1uF R9235 47K
10K_NC
DDC DATA
DDC CLK
NC
#7: Added pull-up
CE REMOTE
CK-
D1 SHIELD
CK+
D0-
D1 SHIELD
D0+
D1-
D2 SHIELD
D1+
D2-
D2 SHIELD
D2+
2-62
R9217
100
R9224
100
R9231
100
R9238
100
HDMI_HPD1
Analog Input
PWR1
HDMI1_DDC_SDA
HDMI1_DDC_SCL
C9215 1000P
HDMI1_CK-
HDMI1_CK+
24
HDMI1_D0- C9216
COMP_Y
R9239
24
HDMI1_D0+ C9217
COMP_PB
HDMI1_D1- R9240
24
C9218
COMP_PR
R9241
HDMI1_D1+
R ->24R * 3
HDMI1_D2-
HDMI1_D2+
CHGND CHGND CHGND
24
COMPOSITE_OSD
R9261
24
CVBS_IN
R9247
24
S-VIDEO_C
R9248
24
S-VIDEO_Y
R9249
HDMI_HPD2
PWR2
CHGND CHGND
HDMI2_DDC_SDA
HDMI2_DDC_SCL
HDMI2_CK-
HDMI2_CK+
HDMI2_D0-
HDMI2_D0+
HDMI2_D1-
HDMI2_D1+
HDMI2_D2-
HDMI2_D2+
HDMI_HPD3
PWR3
HDMI3_DDC_SDA
HDMI3_DDC_SCL
HDMI3_CK-
HDMI3_CK+
HDMI3_D0-
HDMI3_D0+
HDMI3_D1-
HDMI3_D1+
HDMI3_D2-
HDMI3_D2+
HDMI_HPD4
PWR4
HDMI4_DDC_SDA
HDMI4_DDC_SCL
HDMI4_CK-
HDMI4_CK+
HDMI4_D0-
HDMI4_D0+
HDMI4_D1-
HDMI4_D1+
HDMI4_D2-
HDMI4_D2+
SYNC1
ADDED Pull_down Registor
0.1uF
Y_IN
1Mohm * 2
ADV7604 Sync Dectect Issue Fix
0.1uF
PB_IN
0.1uF
PR_IN
C9261 0.1uF COMPOSITE-OSD
C9219
0.1uF CVBS
C9220 0.1uF
S_C
C9221 0.1uF
S_Y
CHGND CHGND
2-63