e-STUDIO170F Circuit Description
January 2005 © TOSHIBA TEC
7 - 76
7.8
TEL PBA (US/CA models: Option, SG/HK models: Standard)
This section describes the functions of the TEL PBA.
Fig.7-57
The TEL PBA is built in the cradle for the handset installed on this machine (US/CA models: Option,
SG/HK models: Standard).
The TEL PBA consists of the speech network IC (IC1) and other peripheral devices and relays signals
to the handset and detects the hook state of the handset. The TEL PBA is connected to CN8 on the
NCU PBA.
+
2
1
1
4
9
10
14
13
2
4
3
1
2
6
5
2
3
-
~
~
HS1
HS2
HS1
HOOK
SG
IC1
Speech
network
IC
CN1
CN2
CN3
NCU PBA
TEL PBA
Cradle
Handset
Modular jack
Содержание ESTUDIO170F
Страница 1: ...SERVICE MANUAL PLAIN PAPER FACSIMILE e STUDIO170F File No SME04002900 R04102171300 TTEC Ver01_2005 05 ...
Страница 2: ... 2005 TOSHIBA TEC CORPORATION All rights reserved ...
Страница 192: ...e STUDIO170F Function Settings January 2005 TOSHIBA TEC 4 132 ...
Страница 214: ...e STUDIO170F Mechanical Description January 2005 TOSHIBA TEC 5 22 ...
Страница 308: ...e STUDIO170F Circuit Description January 2005 TOSHIBA TEC 7 78 ...
Страница 372: ...e STUDIO170F Removal Replacement Adjustment January 2005 TOSHIBA TEC 8 64 ...
Страница 490: ...e STUDIO170F Appendix January 2005 TOSHIBA TEC 12 8 ...
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