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Ericsson 19D901841G2, Руководство по обслуживанию

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Ericsson 19D901841G2 Скачать руководство пользователя страница 6

POWER AMPLIFIER

19D901807G3

(19D901807, Sh. 2, Rev. 6)
(19D705468, Sh. 1, Rev. 3)
(19A705468, Sh. 2, Rev. 1)

OUTLINE DIAGRAM

COMPONENT SIDE

LBI-38134

LBI-38134

5

Содержание 19D901841G2

Страница 1: ...the ampli fier input connector J1 by a 50 ohm coaxial cable L1 C1 C2 and the base microstrip form the input matching circuit for Q1 Control voltage is applied to Q1 through a collector feed network co...

Страница 2: ...er set voltage applied to Q4 The DC reference voltage is provided by Q1 U3 R17 19 and C5 In other special applications of this power control board U2 B CR1 and Q5 provide a low power alarm U1 is used...

Страница 3: ...VDCW C9 thru C12 19A701624P12 Ceramic disc 15 pF 5 500 VDCW temp coef 0 PPM 30 C13 19A700233P6 Ceramic 680 pF 20 50 VDCW DIODES CR1 19A700028P1 Silicon 75 mA 75 PIV sim to 1N4148 JACKS J1 19A704852P3...

Страница 4: ...x 5 16 N402P5B6 Washer narrow steel N404P11B6 Loackwasher internal tooth No 4 PRODUCTION CHANGES Changes in the equipment to improve performance or to simplify circuits are identified by a Revision Le...

Страница 5: ...INTERCONNECTION DIAGRAM POWER AMPLIFIER 19D901841G2 19D902064 Sh 1 Rev 1 LBI 38134 LBI 38134 4...

Страница 6: ...POWER AMPLIFIER 19D901807G3 19D901807 Sh 2 Rev 6 19D705468 Sh 1 Rev 3 19A705468 Sh 2 Rev 1 OUTLINE DIAGRAM COMPONENT SIDE LBI 38134 LBI 38134 5...

Страница 7: ...SCHEMATIC DIAGRAM POWER AMPLIFIER 19D901807G3 19D902062 Rev 4 LBI 38134 LBI 38134 6...

Страница 8: ...OUTLINE DIAGRAM COMPONENT SIDE SOLDER SIDE POWER CONTROL BOARD 19D901803G3 19D901803 Sh 1 Rev 1 19D902059 Component Side Rev 1 19D902059 Solder Side Rev 1 LBI 38134 LBI 38134 7...

Страница 9: ...SCHEMATIC DIAGRAM POWER CONTROL BOARD 19D901803G3 19D902060 Sh 1 Rev 11 LBI 38134 LBI 38134 8...

Страница 10: ...This page intentionally left blank LBI 38134 LBI 38134 9...

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