
SCHEMATIC DIAGRAM ( HDMI - INPUT PART )
2-62
2-63
HP DET
+5V
GND
DDC DATA
DDC CLK
NC
CE REMOTE
CK-
D1 SHIELD
CK+
D0-
D0+
D1 SHIELD
D1-
D2 SHIELD
D1+
D2-
D2 SHIELD
D2+
D2+
D2 SHIELD
D2-
D1+
D2 SHIELD
D1-
D1 SHIELD
D0+
D0-
CK+
D1 SHIELD
CK-
CE REMOTE
NC
DDC CLK
DDC DATA
GND
+5V
HP DET
HP DET
+5V
GND
DDC DATA
DDC CLK
NC
CE REMOTE
CK-
D1 SHIELD
CK+
D0-
D0+
D1 SHIELD
D1-
D2 SHIELD
D1+
D2-
D2 SHIELD
D2+
INPUT-3
INPUT-2
INPUT-1
#7: Added pull-up
#7: Added pull-up
#7: Added pull-up
#21: HPD Part
#21: HPD Part
#21: HPD Part
R ->51R * 3
R ->24R * 3
ADDED Pull_down Registor
1Mohm * 2
ADV7604 Sync Dectect Issue Fix
Analog Input
HP DET
+5V
GND
DDC DATA
DDC CLK
NC
CE REMOTE
CK-
D1 SHIELD
CK+
D0-
D0+
D1 SHIELD
D1-
D2 SHIELD
D1+
D2-
D2 SHIELD
D2+
INPUT-4
#7: Added pull-up
#21: HPD Part
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
JK923
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
JK922
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
JK921
Q9211
KRA102S
Q9212
KRC103S
R9213
22K
R9212
1K
C9211
0.1uF
Q9215
KRA102S
Q9216
KRC103S
R9227
22K
R9226
1K
C9213
0.1uF
Q9213
KRA102S
Q9214
KRC103S
R9220
22K
R9219
1K
C9212
0.1uF
R9225
47K
R9211
47K
R9218
47K
R9231
100
R9217
100
R9224
100
R9230 10K_NC
R9228
47K
R9216
10K_NC
R9214
47K
R9223
10K_NC
R9221
47K
R9239
24
R9242
51
C9216
0.1uF
R9240
24
R9243
51
C9217
0.1uF
R9241
24
R9244
51
C9218
0.1uF
C9215
1000P
R9245
1M
R9246
1M
R9247
24
R9250
51
C9219
0.1uF
R9248
24
R9251
51
C9220
0.1uF
R9249
24
R9252
51
C9221
0.1uF
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
JK924
Q9217
KRA102S
Q9218
KRC103S
R9234
22K
R9233
1K
C9214
0.1uF
R9232
47K
R9238
100
R9237
10K_NC
R9235
47K
R9222
1K
R9215
1K
R9229
1K
R9236
1K
R9261
24
R9262
51
C9261
0.1uF
AA
D9203
OPEN
AA
D9204
OPEN
AA
D9205
OPEN
AA
D9206
OPEN
AA
D9207
OPEN
AA
D9208
OPEN
AA
D9209
OPEN
AA
D9210
OPEN
AA
D9213
OPEN
AA
D9214
OPEN
AA
D9215
OPEN
AA
D9216
OPEN
AA
D9217
OPEN
AA
D9218
OPEN
AA
D9219
OPEN
AA
D9220
OPEN
AA
D9223
OPEN
AA
D9224
OPEN
AA
D9225
OPEN
AA
D9226
OPEN
AA
D9227
OPEN
AA
D9228
OPEN
AA
D9229
OPEN
AA
D9230
OPEN
AA
D9233
OPEN
AA
D9234
OPEN
AA
D9235
OPEN
AA
D9236
OPEN
AA
D9237
OPEN
AA
D9238
OPEN
AA
D9239
OPEN
AA
D9240
OPEN
HDMI_HPD1
HDMI_HPD3
HDMI_HPD2
PWR3
PWR1
PWR2
CEC
HDMI3_D2-
HDMI3_D1-
HDMI3_D0-
HDMI3_CK-
HDMI2_D2-
HDMI2_D1-
HDMI2_D0-
HDMI2_CK-
HDMI1_D2-
HDMI1_D1-
HDMI1_D0-
HDMI1_CK-
H
H
H
H
H
H
H
H
H
H
H
H
HDMI3_DDC_SDA
HDMI3_DDC_SCL
HDMI2_DDC_SDA
HDMI2_DDC_SCL
HDMI1_DDC_SDA
HDMI1_DDC_SCL
Y_IN
COMP_Y
PB_IN
COMP_PB
PR_IN
COMP_PR
SYNC1
CVBS
CVBS_IN
S_C
S-VIDEO_C
S_Y
S-VIDEO_Y
HDMI_HPD4
PWR4
HDMI4_D2-
HDMI4_D1-
HDMI4_D0-
HDMI4_CK-
H
H
H
H
HDMI4_DDC_SDA
HDMI4_DDC_SCL
COMPOSITE_OSD
COMPOSITE-OSD
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
Summary of Contents for T 748
Page 1: ...L A U N A M E C I V R E S AV Surround Sound Receiver T748 AV Surround Sound Receiver T748 ...
Page 6: ...DISASSEMBLY REMOVAL OF FRONT PANEL 1 6 ...
Page 7: ...PRINCIPAL PART LOCATION 1 7 ...
Page 18: ...IC 211 MX29LV32DTTI 70G FLASH OF DSP 2 6 ...
Page 19: ...2 7 ...
Page 29: ...2 17 BLOCK DIAGRAM ...
Page 40: ...IC 913 IC 918 TC74VCX541FT OCTAL BUS BUFFER 2 28 ...
Page 44: ...BLOCK DIAGRAM MCU DSP PART 2 32 2 33 ...
Page 45: ...BLOCK DIAGRAM AUDIO PART 2 34 2 35 ...
Page 46: ...BLOCK DIAGRAM HDMI PART 2 36 2 37 ...
Page 62: ...2 68 2 69 PRINTED CIRCUIT BOARD FRONT TOP VIEW ...
Page 63: ...2 70 2 71 FRONT BOTTOM VIEW ...
Page 64: ...2 72 2 73 INPUT TOP VIEW ...
Page 65: ...2 74 2 75 INPUT BOTTOM VIEW ...
Page 66: ...2 76 2 77 MAIN TOP VIEW ...
Page 67: ...2 78 2 79 MAIN BOTTOM VIEW ...
Page 68: ...2 80 2 81 SUB TOP VIEW ...
Page 69: ...2 82 2 83 SUB BOTTOM VIEW ...