3 T838/839 SII - SI Conversion - Repeater Buildermanuals.repeater-builder.com/2003/T800/T800...
6
M830-00 T838/839 SII - SI Conversion I3.1 Copyright TEL 23/07/99 3 T838/839 SII - SI Conversion 3.1 Introduction You must make a number of modifications to enable a T830 Series II PA to operate in a Series I rack frame. These changes can be split into two groups, mechanical and electri- cal, as described below. This procedure assumes you have already purchased the appropriate Series I conver- sion kit: • T838 - T800-70-0038 • T839 - T800-70-0039. If not, you should purchase one from your nearest Tait Dealer or Customer Service Organisation before beginning the procedure. Note: This procedure applies to the latest design T838/839 PAs which use RF power modules and are identified by the Series II style product code T83X-X0-0000. It should take approximately 15-20 minutes per module to perform these steps. Mechanical These changes involve putting on a new front panel because of the differences in height and width between a Series II and Series I panel. Electrical These changes involve: • inserting and removing components inside the module to disable cyclic keying; • converting from rear RF input to front RF input.
Transcript of 3 T838/839 SII - SI Conversion - Repeater Buildermanuals.repeater-builder.com/2003/T800/T800...
M830-00 T838/839 SII - SI Conversion I3.1
3 T838/839 SII - SI Conversion
3.1 Introduction
You must make a number of modifications to enable a T830 Series II PA to operate in aSeries I rack frame. These changes can be split into two groups, mechanical and electri-cal, as described below.
This procedure assumes you have already purchased the appropriate Series I conver-sion kit:
• T838 - T800-70-0038
• T839 - T800-70-0039.
If not, you should purchase one from your nearest Tait Dealer or Customer ServiceOrganisation before beginning the procedure.
Note: This procedure applies to the latest design T838/839 PAs which use RFpower modules and are identified by the Series II style product codeT83X-X0-0000.
It should take approximately 15-20 minutes per module to perform these steps.
Mechanical These changes involve putting on a new front panel because of thedifferences in height and width between a Series II and Series Ipanel.
Electrical These changes involve:
• inserting and removing components inside the module todisable cyclic keying;
• converting from rear RF input to front RF input.
Copyright TEL 23/07/99
I3.2 T838/839 SII - SI Conversion M830-00
1
1
3.2 Method
Step Action
1 Remove the Series II front panel from the PA as follows:
• remove the four screws using a Torx screwdriver;
• push the LEDs from the front of the panel to remove them fromtheir grommets.
2 Remove the side cover.
3 Follow the step for whichever module you are going to modify:
• T838 - go to Step 4;
• T839 - go to Step 5.
These modifications will disable the cyclic keying.
4 T838
Remove *L201 (330nH SMD inductor), as shown in Figure 3.1.
Caution: Do not use excessive heat to remove the inductor or itwill melt.
5 T839
Remove *L211 (330nH SMD inductor), as shown in Figure 3.1.
Caution: Do not use excessive heat to remove the inductor or itwill melt.
31/03/01 Copyright TEL
M830-00 T838/839 SII - SI Conversion I3.3
graphic
Figure 3.1 T838/839 Component Changes
*RV
111L
INK
2
R1
35
R1
63
R1
66
R173
R1
74
TO
PF
IDB
RV
10
9
D1
09
D1
03
D1
07
SE
RIE
S II O
NLY
*C2
03
*C204
*C206
*L2
01
*R2
01
*R202
*R2
04
*SK
20
3
*C2
17
*C2
19
*L2
11
*SK
20
1
*C2
17
*C2
19
*C230
*C2
31
*C2
32
*C233
*C234
*C240
*IC
20
3*I
C2
05
*L204*L
21
1
*L2
30
*L236
*Q109
*R111
*R208
*R216 *R217
*R230
*R232
*RV
111
*SK
201
C129
C131
C132
C133
C137
C138
C139
C141
C143
C145
C147C149
C151
C153
C155
C159
C161
C162
C164
C165
C167
C169
C171
C173
C174
C1
76
C178
C1
79
C180
C181
C182
C184
C185
C186
C187
C188
C189
C190
C192
C1
93
C195
C201
C205
C207
C215
C220 C221
C222
C223
C224
C2
25
C226
C2
27
C229
C259
C261
C294
C295
C297
C298
D101
D105
D111
D2
02
IC101
IC103
IC105
IC107
IC109
IC204
L1
01
L103
L1
05
L2
03
L208
L2
33
L2
39
L245
L248
L2
64
LINK1
LIN
K2
LIN
K2
01
P1
01
P1
03
P1
05
P2
01
PL101
Q1
11
Q113
Q1
15
Q1
17
Q119
Q121
Q1
23
Q125
Q127
Q1
29
Q1
31
Q133Q
13
5
Q1
36
Q2
01
R101
R103
R104
R117
R118
R119
R123
R124
R125
R126
R127
R128
R129
R130
R131
R132
R133
R134
R135
R136
R137
R138
R141
R142
R143
R144
R145
R146
R148
R149
R150
R151
R152
R153
R154
R155
R156
R157
R158
R159
R160
R161
R162
R163
R164
R165
R166
R168
R169
R170
R171
R172
R173
R174
R175
R176
R177
R178
R179
R180
R181
R182
R183
R184
R185
R186
R187
R188
R189
R190R
191
R192
R193
R194
R195
R196
R197
R203
R205
R207R209
R210
R212
R213
R214
R218
R220
R222 R224
R228
R229
R237
RV
10
1R
V1
03
RV
10
5
RV
10
7
RV
11
3
RV
11
5
SK
10
1
SK
10
3
TH
20
1
TO
PF
IDA
TO
PF
IDB
TS
20
2
C272
L249
C273
L2
47
L2
43
C271
C270
L241
R225
*#IC
202
D113R231
R219
L217
L215
*L223
*R215
RV
109
*R113
*C117
*C119
*Q107
*C113
*C115
*R112
*C209
*C210
*R115
*R206
*R114
*Q105
*C111
*R107
*R122
*C123
*R116
*C212
*C213
*R211
*C121
*R105
*C103
*C101
*C124
*R102
*C127
*C125
*R121
*R109
*Q101
*R108
*C107
*C105 *R106
*Q103
*C109
*839-1
0R
*839-2
0R
*838-1
0R
*838-2
0R
*839-1
0F
*839-2
0F
*838-1
0F
*838-2
0F
*L231
D1
09
D1
03
D1
07
*L202
*C202
*C208
C216
L2
06
C218
Q137
*R223
C268 D2
03
D201
Contr
ol C
ircu
itry
Low
Pass
Filt
er
Direct
ional C
ouple
r
RF
OU
TR
F I
N
RE
V P
WR
FW
D P
WR
22
0-0
14
02
-02
#IC
201
T839 IS
SU
E: 3A
220-0
1404-0
3
SE
RIE
S I
I O
NL
Y
LC
NG
4
MP
1K
2
HJ
3
DQ
BE
FA
5678
*RV
111
C129
C131
C132
C133
C137
C138
C139
C141
C143
C145
C147C149
C151
C153
C155
C159
C161
C162
C164
C165
C167
C169
C171
C173
C174
C1
76
C178
C1
79
C180
C181
C182
C184
C185
C186
C187
C188
C189
C190
C192
C1
93
C195
C201
C205
C207
C215
C220 C221
C222
C223
C224
C2
25
C226
C2
27
C229
C259
C261
C294
C295
C297
C298
D101
D105
D111
D2
02
IC101
IC103
IC105
IC107
IC109
IC204
L1
01
L103
L1
05
L2
03
L208
L2
33
L2
39
L245
L248
L2
64
LINK1
LIN
K2
LIN
K2
01
P1
01
P1
03
P1
05
P2
01
PL101
Q1
11
Q113
Q1
15
Q1
17
Q119
Q121
Q1
23
Q125
Q127
Q1
29
Q1
31
Q133
Q1
35
Q1
36
Q2
01
R101
R103
R104
R117
R118
R119
R123
R124
R125
R126
R127
R128
R129
R130
R131
R132
R133
R134
R135
R136
R137
R138
R141
R142
R143
R144
R145
R146
R148
R149
R150
R151
R152
R153
R154
R155
R156
R157
R158
R159
R160
R161
R162
R163
R164
R165
R166
R168
R169
R170
R171
R172
R173
R174
R175
R176
R177
R178
R179
R180
R181
R182
R183
R184
R185
R186
R187
R188
R189
R190
R191
R192
R193
R194
R195
R196
R197
R203
R205
R207R209
R210
R212
R213
R214
R218
R220
R222 R224
R228
R229
R237
RV
10
1R
V1
03
RV
10
5
RV
10
7
RV
11
3
RV
11
5
SK
10
1
SK
10
3
TH
20
1
TO
PF
IDA
TO
PF
IDB
TS
20
2
C272
L249
C273
L2
47
L2
43
C271
C270
L241
R225
D113R231
R219
L217
L215
RV
109
*839-1
0R
*839-2
0R
*838-1
0R
*838-2
0R
*839-1
0F
*839-2
0F
*838-1
0F
*838-2
0F
D1
09
D1
03
D1
07
C216
L2
06
C218
Q137
C268 D2
03
D201
Contr
ol C
ircu
itry
Low
Pass
Filt
er
Direct
ional C
ouple
r
SE
RIE
S I
I O
NL
Y
RE
V P
WR
FW
D P
WR
#IC
201
220-0
1404-0
3
*C2
03
*C204
*C206
*L2
01
*R201
*R202
*R204
*SK
203
RF
IN
RF
OU
T2
20
-01
40
2-0
2C
OA
X L
INK
T838 IS
SU
E: 3A
LC
NG
4
MP
1K
2
HJ
3
DQ
BE
FA
5678
T838 - remove *L201
T839 - remove *L211
Copyright TEL 31/03/01
I3.4 T838/839 SII - SI Conversion M830-00
Step Action
6 Converting from rear panel RF input to front panel RF input.
Remove the rear panel BNC connector:
• unplug the RF input coax from the socket on the PCB;
• unscrew the BNC connector from the chassis;
• carefully withdraw the coax from the module through the holein the rear of the chassis;
• fit the blanking plate over the hole in the chassis from whichthe BNC connector has been removed.
Fit the front panel SMC connector:
• insert the coax fitted with the brass SMC connector through thehole in the front of the chassis and secure with the brass nutand washer;
• connect the coax from the SMC connector into *SK203 (T838) or*SK201 (T839) as shown in Figure 3.2.
7 Refit the side cover.
8 Fit all parts of the Series I front panel, following Step 1 in reverse order.
Note: If you have difficulty refitting the LEDs, try pushing thebody of the LED back into the grommet with a thin screw-driver or spike. Be very careful while doing this as the legsof the LED are very easy to break.
30/04/98 Copyright TEL
M830-00 T838/839 SII - SI Conversion I3.5
Figure 3.2 T838/839 RF Input Coax Routing
*RV
111
C129
C131
C132
C133
C137
C138
C139
C1
41
C143
C145
C147C149
C151
C153
C155
C159
C161
C162
C164
C165
C167
C169
C171
C173
C174
C1
76
C178
C1
79
C180
C181
C182
C184
C185
C186
C187
C188
C189
C190
C192
C1
93
C195
C201
C205
C207
C215
C220 C221
C222
C223
C224
C2
25
C226
C2
27
C229
C259
C261
C294
C295
C297
C298
D101
D105
D111
D2
02
IC101
IC1
03
IC1
05
IC1
07
IC1
09
IC2
04
L1
01
L103
L1
05
L2
03
L208
L2
33
L2
39
L245
L248
L2
64
LINK1
LIN
K2
LIN
K2
01
P101
P103
P105
P201
PL101
Q1
11
Q113
Q1
15
Q1
17
Q119
Q121
Q1
23
Q125
Q127
Q1
29
Q1
31
Q133
Q1
35
Q1
36
Q2
01
R101
R103
R104
R117
R118
R119
R123
R124
R125
R126
R127
R128
R129
R130
R131
R132
R133
R134
R135
R136
R137
R138
R141
R142
R143
R144
R145
R146
R148
R149
R150
R151
R152
R153
R154
R155
R156
R157
R158
R159
R160
R161
R162
R163
R164
R165
R166
R168
R169
R170
R171
R172
R173
R174
R175
R176
R177
R178
R179
R180
R181
R182
R183
R184
R185
R186
R1
87
R188
R189
R190
R191
R192
R193
R1
94
R195
R196
R197
R203
R205
R207R209
R210
R212
R213
R214
R218
R220
R222 R224
R228
R229
R237
RV
101
RV
103
RV
105
RV
107
RV
113
RV
115
SK
101
SK
10
3
TH
201
TO
PF
IDA
TO
PF
IDB
TS
202
C272
L2
49
C273
L247
L243
C271
C270
L2
41
R225
D113R231
R219
L217
L215
RV
10
9
*839-1
0R
*839-2
0R
*838-1
0R
*838-2
0R
*839-1
0F
*839-2
0F
*838-1
0F
*838-2
0F
D1
09
D1
03
D1
07
C216
L206
C218
Q137
C268 D2
03
D201
Co
ntr
ol C
ircu
itry
Lo
w P
ass
Filt
er
Dire
ctio
na
l Co
up
ler
SE
RIE
S I
I O
NL
Y
RE
V P
WR
FW
D P
WR
#IC
20
1
22
0-0
14
04
-03
*C2
03
*C204
*C206
*L201
*R2
01
*R202
*R2
04
*SK
20
3
RF
IN
RF
OU
T2
20
-01
40
2-0
2C
OA
X L
INK
T8
38
IS
SU
E:
3A
LC
NG
4
MP
1K
2
HJ
3
DQ
BE
FA
5678
*C217
*C219
*C230
*C231
*C232
*C233
*C234
*C240
*IC
203
*IC
205
*L204
*L211
*L2
30
*L236
*Q109
*R111
*R208
*R216 *R217
*R230
*R232
*RV
11
1
*SK
201
C1
29
C1
31
C1
32
C1
33
C137
C138C
13
9
C1
41
C1
43
C1
45
C1
47C149
C151
C1
53
C1
55
C1
59
C1
61
C1
62
C1
64
C1
65
C1
67
C169
C1
71
C173
C1
74
C176
C1
78
C179
C180
C181
C182
C184
C185C
18
6C187
C188
C189
C1
90
C192
C193
C195
C201
C205
C207
C2
15
C220 C221
C2
22
C223
C2
24
C225
C226
C227
C229
C2
59
C2
61
C294
C295
C2
97
C2
98
D101
D105
D111
D2
02
IC101
IC103
IC1
05
IC1
07
IC1
09
IC2
04
L1
01
L103
L1
05
L2
03
L208
L233
L239
L2
45
L2
48
L264
LINK1
LIN
K2
LIN
K201
P1
01
P1
03
P1
05
P2
01
PL101
Q1
11
Q113
Q1
15
Q1
17
Q119
Q121
Q1
23
Q125
Q127
Q1
29
Q1
31
Q133
Q1
35
Q1
36
Q2
01
R101
R1
03
R1
04
R117
R118
R119
R123
R124
R125
R1
26
R1
27
R1
28
R1
29
R1
30
R1
31
R1
32
R1
33
R1
34
R1
35
R1
36
R1
37
R1
38
R1
41
R1
42
R1
43
R1
44
R145
R146
R148
R1
49
R150
R151
R1
52
R1
53
R154
R155
R156
R1
57
R158
R159
R160
R1
61
R1
62
R1
63
R1
64
R1
65
R1
66
R168
R1
69
R170
R1
71
R1
72
R173
R1
74
R175
R176
R177
R1
78
R179
R1
80
R181
R1
82
R183
R1
84
R185
R186
R1
87
R1
88
R1
89
R190
R1
91
R1
92
R1
93
R1
94
R1
95
R1
96
R1
97
R203
R205
R207R209
R2
10
R2
12
R213
R2
14
R2
18
R220
R222 R224
R228
R229
R2
37
RV
101
RV
103
RV
105
RV
107
RV
113
RV
115
SK
101
SK
103
TH
20
1
TO
PF
IDA
TO
PF
IDB
TS
202
C272
L249
C273
L2
47
L2
43
C271
C270
L241
R225
*#IC
202
D113R231
R2
19
L217
L215
*L223
*R2
15
RV
109
*R113
*C117
*C119
*Q107
*C113
*C1
15
*R1
12
*C209
*C210
*R115
*R206
*R114
*Q1
05
*C111
*R1
07
*R1
22
*C123
*R1
16
*C2
12
*C213
*R211
*C1
21
*R105
*C1
03
*C1
01
*C1
24
*R102
*C1
27
*C125
*R121
*R109
*Q1
01
*R108
*C107
*C105 *R106
*Q1
03
*C1
09
*83
9-1
0R
*83
9-2
0R
*83
8-1
0R
*83
8-2
0R
*83
9-1
0F
*83
9-2
0F
*83
8-1
0F
*83
8-2
0F
*L231
D109
D103
D107
*L2
02
*C2
02
*C2
08
C2
16
L206
C2
18
Q137
*R223
C268 D203
D201
Contr
ol C
ircu
itry
Low
Pass
Filt
er
Dire
ctio
na
l Co
up
ler
RF
OU
TR
F I
N
RE
V P
WR
FW
D P
WR
22
0-0
14
02
-02
#IC
201
T839 IS
SU
E: 3A
220-0
1404-0
3
SE
RIE
S I
I O
NL
Y
LC
NG
4
MP
1K
2
HJ
3
DQ
BE
FA
5678
Rear RF input coax
Front RF input coax
T838 T839
Copyright TEL 30/04/98
I3.6 T838/839 SII - SI Conversion M830-00
30/04/98 Copyright TEL
