Canon LV-7105E/D78-5133 Projector User Manual


  Open as PDF
of 134
 
S5V
PC/AV_SW
V-SY
H-SY
MUTE
9V
S-SW
S-C
S-Y
CB_SW
5V
S-5V
VIDEO
5V
S-5V
5V
5V
S-5V
VOL_CONT
POWER_FAIL
12V
S/CV_SW
5V
CR_SW
MUTE
CRIN
YIN
CBIN
S5V
RESET_M
S5V
V-TH
RXD
TXD
MOUSE1
RC
S5V
CTS/V
S-5V
5V
S-5V
HSYNC
480I_SW
S5V
S-5V
5V
5V
S-5V
S5V
S5V
S5V
R5296
R5218
R5024
R5023
R5022
R5021
R5018
C5007
C5002
C5001
C5004
C5003
Q5008
R5014
R5009
Q5007
C5008
R5013
R5008
R5016
R5011
R5017
R5001
R5002
R5003
R5004
R5007
R5006
C5006
C5009
C5011
D5281
D5282
C5282
C5283
C5284
TP208
R5286
R5284
R5287
R5289
R5291
R5211
R5221
C5217
C5212
C5214
Q5211
R5217
R5232
R5222
R5212
C5216
R5223
R5233
R5231
R5214
R5215
R5225
R5235
D5211
D5231
D5221
TP211
TP212
TP219
TP218
TP217
C5211
C5221
C5231
Q5201
R5201
R5202
R5203
R5207
R5204
Q5202
Q5203
R5206
C5201
TP213
TE215
K50A
K50BGND
AV=LOW
PC=HIGH
L-OUT
R-OUT
GONSYNC
Y
PC=HIGH
AV=LOW
-5V
+5V
CG=LOW
AV=HIGH
CG
B_IN
CG
G_IN
CG
R_IN
Y
Cr
Cb
G-SW B-SW
R-SW
SW
B-OUTG-OUT
R-OUT
PC B-IN
PC R-IN
PC G-IN
Y/VIDEO
V-TH
Cb/Pb
Cr/Pr
G-SYNC/Y
K50B
VSS
VEE
INM
VDD
SW
+5V
-5V
Y
VIDEO
K50B12
K50B14
K50B18
K50B20
K50B22
K50B24
K50B26
K50B28
K50B30
K50B34
K50B36
K50B4
K50B2
K50B40
K50B42
K50B50
K50B48
K50AGND
K50A50
K50A48
K50A44
K50A40
K50A38
K50A34
K50A30
K50A28
K50A26
K50A22
K50A18
K50A16
K50A12
K50A10
K50A8
K50A4
K5A6
K5A5
K5A4
K5A3
K5A2
K5A1
R5026
C5012
Q5001
Q5002
D5001
R5027
R5036
R5037
R5029
D5002
Q5004
Q5003
C5013
R5028
R5031
K50B52
K50B54
Q5041
R5041
R5043
R5044
R5048
R5047
R5046
Q5042
R6201
R6202
R6203
R6204
R6209
R6208
R6207
R6206
R6211
R6212
R6213
R6214
R6223
R6224
R6221
R6222
R6227
R6226
R6229
R6228
R5295
R5294
R5293
R5292
K5A
C5288
L5281
R5181
R5285
C5287
R5280
R5299
L5201
R5283V
R5283Y
C5218
R5270
R303
C303
Q303
R304
K50A2
R305
C5010
C5202
Q5204
R5209
R5208
R5227
R5228
R5015
Q5006
R5010
C5014
R5219
K8D
K8D3
K8D2
K8D1
C5213
Q5296
C5281
R5298
C5289
R5213
H-SY
V-SY
S-Y
S-SW
S-C
R6210
R6239
R6238
R6237
R6236
R6231
R6232
R6233
R6234
D5283
R5281
R5282
R3842
C3846
R3862
C3871
D3851
R3852
R3851
X3801
R3811
R3812
R3813
R3814
R3816
R3801C3802
R3806
R3882
R3884
C3842
C3844
R3861
X3861
C3861
R3883
RB3841
RB3861
R3891
R3864
R3841
R3871
R3867
R3863
R3866
C3867
X3841
IC3841
C3841
C3882
C3881
C3883
C3884
C3864
D3882
MOUSE
/CPU-SW
R/C
DATA
CLK/SDATA
RXD
RXD2
M2/PIN7
SCPU/RESET
M2/RESET
M2/PIN8
M1/PIN8
M1/PIN7
M1/RESET
MOUSE-TXD
TXD2-DRV
M2/SEL1
M2/SEL0
K5P
K5S
L5202
L5282
L5203
Q7281
R7283
R7281
R7286
R7288
L7271
L7272
C7241
C7261
C7251
R7241
R7251
R7261
R7262
R7252
C7273
C7274
C7272
C7271
R7264
R7254
R7244
R7242
R7243
R7253
R7247R7246
R7256 R7257
R7267R7266
R7269
R7268
R7263
R7265
R7260
R7258
R7248
C7242
K50A46
K50B8
R5005
R5020
R5288
Q5297
K100G
C1018
C1017
D1014
D1013
C1009
R1026
R1027
C1014
C1016
D1003
D1002
D1001
D2001
D2004
D2006
D2002
D2003
D2019D2018
D2016 D2017
D2007
D2008
D2024D2023
D2021 D2022
D1024
D1026
D1023
D1028
D1031
D1029
D1021
D1022
D1007D1006
K2003_1
K2004_1
K2001_5
K2001_6 K2001_3
K2001_4
K2004_3
K2004_2
K1002_1
K1001_5
K1001_14
K1001_13
K1001_3
K1001_2
K1001_1
C1006
L1007
L1006
L1019
L1021
L1018
L1022
L1024
L1023
R2022
L2003
R2002
C2001
L2006
L2004
R2019
L2021
L2022
L2007
R2027
R2024
R2026
R2023
K2004
L1003
L1002
L1001
K1001
L2017
L2016
R2018
R2021
K2001
R2001
TO CHASSI EARTH
S-SW
V-SYNC
H-SYNC
S-C
S-Y
L1017
K1002_2
K1002_3
K1002_5
K1002_6
K1002_7
K1002_8
K10B_12
K10B_14
K10B_18
K10B_20
K10B_22
K10B_24
K10B_26
K10B_28
K10B_30
K10B_34
K10B_16
R1021
R1028
R1024
R1032
D1009
D1012
D1027
K10B_36
C1007
C1011
D1008
R1036
R1037
C1039
C1038
R1043
IC1021
C1028
C1032
C1036
C1029
C1031
C1033
C1034
R1049
R1051
R1053
R1054
R1056
C1046
C1044
R1071
C1043
H-SYNC
V-SYNC
H-SYNC
V-SYNC
VS IN
PVC
EVC
HS IN
(CS IN)
PHC
EHC
G-SYNC IN
(VIDEO IN)
HD SEL
ISC
ISJ
GND VSS REF
CLP OUT
CLP OUT
CLP SEL
PH
PV
HD
VSS
OUT
VSS
IN
VD
VCC
D2011D2009
D2012
D2013
AV1-VIDEO
K2002
L2008
L2009
K10A
R1031
K10B
K2003_2
K2003_3
K2002_8
K2002_7
K2002_6
K2002_4
K2002_2
K2002_1
K10A_54
K10A_44
K10A_40
K10A_38
K10A_34
K10A_30
K10A_28
K10A_26
K10A_22
K10A_18
K10A_16
K10A_12
K10A_10
K10A_8
K10A_4
D1010
K10B_4
K10B_2
K10B_40
K10B_42
K10B_50
K10B_48
K10A_48
K10A_50
R2089R2088
R2008R2007
R2003 R2004
R2086 R2087
R2011 R2012
R2061 R2062
R2064R2063
R2014R2013
R2016 R2017
R2066 R2067
R1069
K2003
K2005
R2093
R2096
R2094
R2097
L2092
L2091
K2005_2
K2005_3
K2005_1
D2092D2091
D2093 D2094
SHIELD PLATE
X
K5001A
R1011
R1068
R1067
V-SYNC
H-SYNC
K10A_2
Q1002
Q1001
R1075
R1035
SW1001
SW10_1
SW10_3
K10A_46
K10A_6
K10A_14
K2002_3
K10B_6
K10B_10
K10B_8
K1002
C2092 C2091
C2011C2012
C2022 C2021
C2009
C2008
C2005
C2014
C2016
1/16GZ0C
1/16GJ
22KC
1/16GZ0C
1/16GZ0C
1/16GZ0C
1/16GZ0C
1/16GZ
0C
16KZ
0.47MZFY
16TM2.2FD
16TM2.2FD
16TM2.2FD
16TM2.2FD
AH
1/16GJ
2.2KC
1/16GJ
2.2KC
AH
16KZ
0.47MZFY
1/16GZ
0C
1/16GZ
0C
1/16GJ
1.5KC
1/16GJ
1.5KC
1/16GJ
1.8KC
1/16GJ
100KC
1/16GJ
100KC
1/16GJ
100KC
1/16GJ
100KC
1/16GJ
12KC
1/16GJ
6.8KC
16TM
2.2FD
16EM
10D
16KZ
0.47MZFY
1SS355
1SS355
KZ0.01
GQFY
25KZ0.1
GQFY
25KZ0.1
GQFY
J30A
00102
1/16GZ
0C
1/16GZ
0C
1/16GJ
1KC
1/16GZ
0C
1/16GJ75C
1/16GF
62C
1/16GF
62C
10KZ1U
GQFY
:10KZ1U
MAFY
10KZ1U
GQFY
:10KZ1U
MAFY
10KZ1U
GQFY
AH
1/16GJ
2.2KC
1/16GJ
100C
1/16GJ
100C
1/16GJ
100C
KZ0.01
GQFY
1/16GJ
1KC
1/16GJ
1KC
1/16GF
62C
1/16GJ
1KC
1/16GZ
0C
1/16GZ
0C
1/16GZ
0C
1SS
355
1SS3551SS355
J30A
00102
J30A
00102
J30A
00102
J30A
00102
J30A
00102
CD10
CGQY
CD10
CGQY
CD10
CGQY
AJ
1/16GJ
1KC
1/16GJ
10C
1/16GJ
10C
1/16GJ
10C
1/16GJ
1KC
AJ
AJ
1/16GJ
1KC
25KZ0.1
GQFY
J30A
00102
J30A
00102
J10ML540G
J10ML540G
1/16GJ
2.2KC
16EM
10D
AH
AH
1SS355
1/16GJ
2.2KC
1/16GZ
0C
1/16GZ
0C
1/16GJ
2.2KC
1SS355
AH
AH
16EM
10D
1/16GJ
2.2KC
1/16GJ
470C
AH
1/16GJ
10KC
1/16GJ
10KC
1/16GJ
10KC
1/16GJ
22KC
1/16GJ
10KC
1/16GJ
4.7KC
AH
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ75C
X
1/16GJ75C
X
X
1/16GJ75C
X
1/16GJ75C
X
1/16GJ
75C
X
1/16GJ
75C
J10EG080G
6.3EM22D
L2A7
3R3MG
1/16GJ75C
1/16GJ
120C
CJ220
CGQY
1/16GJ
10C
1/16GF
62C
L2A7
3R3MG
1/16GJ
1KC
1/16GJ
1KC
6.3EM
22D
1/16GZ0C
1/16GJ
100C
KZ0.01
GQFY
AH
1/16GJ
2.2KC
1/16GJ
10KC
6.3EM
220WM
6.3EM
220WM
AJ
1/16GJ
1KC
1/16GJ
10C
1/16GF
62C
1/16GZ
0C
1/16GZ
0C
AH
1/16GJ
2.2KC
6.3EM
220WM
1/16GJ
10KC
J10EG030G
KZ0.01
GQFY
AJ
KZ0.01
GQFY
1/16GJ
1KC
6.3EM
220WM
1/16GZ
0C
1/16GZ0C
X
1/16GJ
75C
1/16GJ
10KC
1/16GJ
75C
1/16GJ
75C
1/16GJ
10KC
1/16GJ
75C
X
1SS355
1/16GJ
75C
1/16GZ
0C
1/16
GZ0C
25KZ0.1
GQFY
1/16GJ
10KC
10KZ1U
GQFY
UDZ5.1BG
1/16GJ
33KC
1/16GJ
10KC
V11B0770P
;V11B1240G
1/16
GJ10KC
1/16
GJ10KC
1/16
GJ10KC
1/16
GJ10KC
1/16
GJ10KC
1/16
GZ0C
10KZ
1UGQFY
1/16GJ
100C
1/16
GJ100C
1/16GJ
100C
10KZ
1UGQFY
10KZ
1UGQFY
1/16
GZ0C
V11B
0930G;
V11B
1250G
10KZ
1UGQFY
1/16GJ
10KC
R1EA1034G
;R1A41034G
R1EA
1034G
;R1A4
1034G
1/16
GJ100C
1/16
GZ0C
1/16
GZ0C
1/16
GZ0C
1/16
GZ0C
1/16
GJ10KC1/16
GZ0C
10KZ
1UGQFY
V11B0770P;
V11B1240G
QXXAVB043B
10KZ
1UGQFY
EM1D
EM
1D
EM1D
EM1D
EM1D
1SS355
J10EP030G
J10EG030G
L2A9R47MG
L2A9
R47MG
L2A9
R47MG
AH
1/16GZ
0C
1/16GJ
22C
1/16GJ
1KC
1/16GZ
0C
L2PD
3R3MG
L2PD
3R3MG
CD10
CGQY
CD10
CGQY
CD10
CGQY
1/16GF
1KC
1/16GF
1KC
1/16GF
1.5KC
1/16GF
3.3KC
1/16GF
470C
6.3EM
220WM
25KZ0.1
GQFY
6.3EM
220WM
25KZ0.1
GQFY
1/16GF
2.2KC
1/16GF
2.2KC
1/16GF
2.2KC
1/16GF
560C
1/16GZ
0C
1/16GZ
0C
1/16GF
1.2KC
1/16GJ
180C
1/16GF
1.2KC
1/16GF
10C
1/16GF
470C
1/16GF
2.7KC
1/16GF
2.2KC1/16GF
5.6KC
1/16GF
1.8KC
1/16GF
220C
1/16GZ
0C
1/16GJ
8.2KC
1/16GJ
6.8KC
10KZ1U
GQFY
1/16
GZ0C
1/16
GZ0C
1/16GJ
330C
DTC143
TKAP
J30B1260N
16KK0.1
GQBY
6.3EM
22D
1SS355
1SS355
CD10
CGQY
1/16
GF2.7KC
1/16
GF3.9KC
6.3EM
22D
16KK0.1
GQBY
UDZ6.2B
UDZ6.2B
UDZ6.2B
UDZ12B
UDZ6.2B
UDZ6.2B
UDZ6.2B
UDZ6.2B
UDZ12BUDZ12B
UDZ12B UDZ12B
UDZ6.2B
UDZ6.2B
UDZ12BUDZ12B
UDZ12B UDZ12B
UDZ20BG
UDZ20BG
UDZ20BG
UDZ20BG
UDZ20BG
UDZ20BG
UDZ20BG
UDZ20BG
UDZ12BUDZ12B
CJ100
CGQY
F34DA
191G
F34DA191G
F34A
5106G
F34A
5106G
F34A
5106G
F34A
5106G
F34A
5106G
F34A
5106G
1/16
GJ100C
F34A5106G
1/16
GJ100C
16KK0.1
GQBY
F34A5506G
F34A5506G
1/16
GJ100C
F34A5106G
F34A5106G
F34A5506G
1/16GJ
100C
1/16GJ
100C
1/16GJ
470KC
1/16GJ
470KC
J12A
00400
F34DA200G
F34DA200G
F34DA200G
J11B0990N
F34A5106G
F34A5106G
1/16GJ
470KC
1/16GJ
470KC
J11B0850N
1/16GJ
33KC
F34A5106G
1/16GJ
100C
1/16GJ
100C
1/16GJ
1KC
1/16GJ
680C
1SS355
1SS355
UDZ20BG
10KK0.47U
GQBY
1/16GZ
0C
1SS355
1/16GZ
0C
1/16GJ100C
6.3EM
22D
16KK0.1
GQBY
1/16GZ0C
CXA2016S
16TM2.2FD
16TM1DA
16TM
1DA
10KK
0.22KGQBY
10KK
0.22KGQBY
16KK
0.1GQBY
10KK
0.22KGQBY
1/16GJ33KC
1/16GJ220C
1/16GZ0C
1/16GF12KC
1/16GF12KC
16KK0.1GQBY
16KK
0.1GQBY
1/16GJ2.2KC
KK3300GQBY
UDZ6.2BUDZ6.2B
UDZ6.2B
UDZ6.2B
J12B2761N
F34A5506G
F34A5506G
J11MD
540G
1/16GJ
10KC
J11MD
540G
1SS355
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
1/16GJ
75C
X
J12A
00400
J12A
00400
1/16GJ
100KC
1/16GJ
100KC
1/16GJ
100C
1/16GJ
100C F34A5106G
F34A5106G
UDZ12BUDZ12B
UDZ12B UDZ12B
1/16GJ100C
1/16GJ220C
1/16GZ0C
DTC114EKAP
DTC114EKAP
1/16GJ1KC
1/16GZ
0C
S10B5110N
J11A00300
CJ100
CGQY
CJ100
CGQY
CJ100
CGQY
CJ100
CGQY
CJ100
CGQY
CJ100
CGQY
16EM
470CD
10KZ
22MNF
10KZ
22MNF
10KZ
22MNF
10KZ
22MNF
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
16
15
14
13
12
11
10
98
7
6
5
4
3
2
1
16
15
14
13
12
11
10
98
7
6
5
4
3
2
1
8
7
6
54
3
2
1
24
23
22
21
20
19
18
17
16
15
14
1312
11
10
9
8
7
6
5
4
3
2
1
161
15
14
13
12
11
10
98
7
6
5
4
3
2
16
15
14
13
12
11
10
9 8
7
6
5
4
3
2
1
3
2
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15 14
13
12
11
10
9
8
7
6
5
4
3
2
1
5
43
2
1
1
2
3 4
5
5
43
2
1
5
43
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
1
14
2
15
3
4
5
6
7
8
9
10
11
12
13
1
2
3
3
2
1
1
2
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
3
2
1
1
2
3
1
2
3
L
L
L
H
H
C
A
B
A
B
CGND
+
++
+
++
AUDIO SW
VCC
Y
PC-L
AV-L
AV-R
PC-R
29
19
9
1 2
53
54
9
19
29
39
49
39
49
1 2
53 54
L
H
AUDIO_IN
R OUT
L OUT
(IC1804 17P)
(IC5101 18P)
(IC1804 16P)
(IC7221 1P)
(IC7221 11P)
(IC5101 20P)
(IC1809 2P)
(IC5101 16P)
(IC1809 4P)
(IC1809 3P)
(IC431 4P)
(IC1803)
(IC1803)
(IC1808 6P)
1
2
3
4
5
6
7
8
PC/AV
(IC351,K5C)
(IC5251 3P)
(IC5252 3P)
(IC5253 3P)
(QI301 207P)
(QI301 75P)
(QI301 204P)
R1
OUT
R2
IN
T2
OUT
V-
C2-
C2+
C1-
V+
C1+
R2
OUT
T2
IN
T1
IN
R1
IN
T1
OUT
GND
VCC
GND
VDD
OUT
SRC11
SRC10
SRC01
SRC00
SRD03
SRD02
SRD01
SRD00
SRD07
SRD06
SRD05
SRD04
SEL1
SEL0
DATA IN
SA
XB
SDATA INT
Ready
TXD
YB
YA
RC01
RC00
RC11
RC10
RD13
RD12
RD11
RD10
RD17
RD16
RD15
RD14
(IC1809 5P)
V-
V+OUT
I-ININ
-+
+ -
IN I-IN
OUT V+
V-
V-
V+OUT
I-ININ
-+
(IC1807 19P)
V-
V+OUT
I-ININ
-+
PC R
PC L
AV R
AV L
PC L
PC R
AV L
AV R
CG
L/R-IN
CG
S-V
RXD
RTS
DTR
CTS/V
TXD
CLK
DATA/ADB
B-IN
R-IN
G-IN
Y/VIDEO
S-SW
S-C
S-Y
V-TH
Y/VIDEO
Cr/Pr
Cb/Pb
Cb/Pb
Cr/Pr
H-SY
V-SY
G-SYNC/Y
Cb_SW
1 2
53 54
10
20
30
40
50
10
20
30
1 2
40
50
53 54
DATA/ADB
CLK
TXD
CTS/V
DTR
RTS
RXD
Cr_SW
AV
L/R-IN
CG/AV
L/R-OUT
R OUT
L OUT
R OUT
L OUT
RESET
PC/AV
AV=HIGH
PC=LOW
1,2
3,4
2
1
3
4
5
8
7
6
1
8
MP6AA-02
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
A
B
C
D
E
F
G
H
I
J
K
L
TC7W53FU-(TE12L)
IC5282
IC5201
EL4332CS
CXA2016S
IC1021
EL4332CS
IC5281
AD8057ART
IC7261
AD8057ART
IC7251
AD8057ART
IC7241
TC4053BF(EL)
IC5001
ASSY,PWB AV COMP MP6A
1AA0B10C3020A
RESET SW
COMPUTER IN
S-VIDEO
Y/VIDEO
CG
L/R-IN
Cr/Pr
Cb/Pb
AV
L/R-IN
CG/AV
L/R-OUT
SERIAL PORT
AV BOARD
AUDIO-IN
AUDIO-OUT
V-SYNC
H-SYNC
R
G
B
G-SYNC/Y
G-SYNC
SEP.
MAIN BOARD
AUDIO AMP.
BOARD "K6P"
AUDIO
SWITCH
R/Cr/Pr
G-Y
B/Cb/Pb
S-Y
S-CS-C
VIDEO
S-VIDEO SWITCH
PC/AV
SWITCH
Y/G-SYNC
SWITCH
G-SYNC/Y
TP208
TP217
TP219
TP211TP211
TP212
TP213
0.8V
0V
0V
0V
RC BOARD
"K28D"
AIR MOUSE
CONTROLLER-2
AIR MOUSE
CONTROLLER-1
IC3841
TWM7000-151020
IC3871
HIN232CB
SP232ACT
IC3862
MN1382-Q-TX
IC3861
TMP47C101M-JV45
IC3801
TWM7000-162020
H-SYNC
V-SYNC
RS232C
DRIVER
SUB
CPU
IC1001
AD8057ART
0.8V
0V
-5.6V
0V
5.1V
0.6V
0.8V
5.1V
0.1V
0V
0.4V
-5.6V
5.0V
0V
0.6V
0.6V
0V
0V
0.1V
0V
0.6V
0V
5.1V
0V
0V
0V
0V
0V
0V
0.2V
0.4V
0V
0V
0V
0V
5.1V
-5.6V
0V
0V
4.2V
0V
0V
0V
0V
0V
0V
0V
4.2V
5.6V
4.2V
9.1V
2.5V
2.2V
0V
0V
0V
0V
5.3V
5.3V
0V
0V
0.1V
0V
5.3V
5.3V
5.3V
5.3V
5.3V
5.2V
0V
0V
0V
0.7V
0.1V
0.9V
0.9V
0.9V
0.9V
0.9V
0.9V
0.9V
0.9V
5.3V
0V
0V
0V
0V
5.1V
0V
0.7V
0.5V
5.3V
5.3V
5.3V
5.3V
5.3V
4.3V
0V
0V
0V
5.3V
10V
7.6V
4.8V
-5.1V
-9.5V
TP218
A4
(SCH_MP6PA/PP6PA)
 previous next