Rf Board Assembly - E.F. Johnson LTR-Net 7243 Service Manual

7.5vdc 1 and 4 watts part no. 242-7243-xxx
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KEYPAD/DISPLAY BOARD ASSEMBLY
Ref No
Description
Q402
DTA123EUA switching SC-70
Q403
DTA123EUA switching SC-70
Q404
UMT3904 switching SC-70
R101
CR 1/16W 104JV resistor
R102
CR 1/16W 473JV resistor
R103
CR 1/16W 220JV resistor
R104
CR 1/16W 473JV resistor
R105
CR 1/16W 4R7JV resistor
R106
CR 1/16W 4R7JV resistor
R107
CR 1/16W 104JV resistor
R108
CR 1/16W 473JV resistor
R109
CR 1/16W 220JV resistor
R110
CR 1/16W 473JV resistor
R111
CR 1/16W 273JV resistor
R112
CR 1/16W 4R7JV resistor
R115
CR 1/16W 273JV resistor
R116
CR 1/16W 473JV resistor
R201
CR 1/16W 104JV resistor
R202
CR 1/16W 223JV resistor
R203
CR 1/16W 333JV resistor
R204
CR 1/16W 103JV resistor
R205
CR 1/16W 123JV resistor
R206
CR 1/16W 123JV resistor
R207
CR 1/16W 272JV resistor
R208
CR 1/16W 272JV resistor
R301
CR 1/16W 221JV resistor
R302
CR 1/16W 221JV resistor
R303
CR 1/16W 221JV resistor
R304
CR 1/16W 221JV resistor
R305
CR 1/16W 221JV resistor
R306
CR 1/16W 221JV resistor
R307
CR 1/16W 472JV resistor
R308
CR 1/16W 104JV resistor
R310
CR 1/16W 104JV resistor
R311
CR 1/16W 000JV resistor
R401
CR 1/16W 473JV resistor
R402
CR 1/16W 473JV resistor
R403
CR 1/16W 473JV resistor
R404
CR 1/16W 473JV resistor
R408
CR 1/16W 104JV resistor
R409
CR 1/16W 104JV resistor
R411
CR 1/16W 104JV resistor
R412
CR 1/16W 104JV resistor
R413
CR 1/16W 104JV resistor
Part No.
Ref No
022-3909-226
R414
022-3909-226
R415
022-3909-170
R416
R501
022-3909-007
R502
022-3909-042
R503
022-3909-019
R504
022-3909-042
R505
022-3909-245
R506
022-3909-245
R508
022-3909-007
022-3909-042
RT509 NTCC16Y 473K 410H thermistor 022-3909-231
022-3909-019
022-3909-042
U005* CMS27P44 internal microphone
022-3909-026
U101* NJM2073M external audio amp
022-3909-245
022-3909-026
U102* NJM2073M internal audio amp
022-3909-042
022-3909-007
U201
022-3909-022
022-3909-031
U501
022-3909-006
022-3909-010
022-3909-010
C102
022-3909-227
C105
022-3909-227
C106
022-3909-020
C108
022-3909-020
C109
022-3909-020
C110
022-3909-020
C112
022-3909-020
C113
022-3909-020
C114
022-3909-041
C115
022-3909-007
C116
022-3909-007
C118
022-3909-001
C120
022-3909-042
C122
022-3909-042
C123
022-3909-042
C124
022-3909-042
C125
022-3909-007
C126
022-3909-007
C127
022-3909-007
C130
022-3909-007
C132
022-3909-007
7-2

RF BOARD ASSEMBLY

Description
CR 1/16W 104JV resistor
CR 1/16W 104JV resistor
CR 1/16W 473JV resistor
CR 1/16W 104JV resistor
CR 1/16W 473JV resistor
CR 1/16W 562JV resistor
CR 1/16W 123JV resistor
CR 1/16W 332JV resistor
CR 1/16W 332JV resistor
CR 1/16W 332JV resistor
13200025
11100048
11100048
TC4W66FU in/ext mic sel sw
SSOP-8
LC75834W LCD driver, SQFP48 022-3909-117
RF BOARD ASSEMBLY
GRM39COG050C50PT capacitor 022-3909-065
GRM39COG471J50PT capacitor
GRM39COG050C50PT capacitor 022-3909-065
GRM39X7R102K50PT capacitor 022-3909-072
ECS-T1CY475 capacitor
GRM39Y5V104Z25PT capacitor
GRM39X7R102K50PT capacitor 022-3909-072
GRM39COG050C50PT capacitor 022-3909-065
GRM39COG080D50PT capacitor 022-3909-068
GRM39COG1R5C50PT capacitor 022-3909-246
GRM39COG080D50PT capacitor 022-3909-068
GRM39COG050C50PT capacitor 022-3909-065
GRM39COG220J50PT capacitor
GRM39COG220J50PT capacitor
GRM39COG101J50PT capacitor
GRM39COG331J50PT capacitor
GRM39COG221J50PT capacitor
GRM39COG471J50PT capacitor
GRM39X7R102K50PT capacitor 022-3909-072
GRM39X7R223K50PT capacitor 022-3909-086
GRM39X7R102K50PT capacitor 022-3909-072
Part No. 001-7240-001
PARTS LIST
Part No.
022-3909-007
022-3909-007
022-3909-042
022-3909-007
022-3909-042
022-3909-045
022-3909-010
022-3909-030
022-3909-030
022-3909-030
022-3909-204
022-3909-179
022-3909-179
022-3909-189
022-3909-096
022-3909-111
022-3909-074
022-3909-083
022-3909-083
022-3909-071
022-3909-090
022-3909-084
022-3909-096
November 2001

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Ltr-net 7200 series

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