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TRANSMITTER  CAP 

TRANSMITTER 

UNIT 

TRANSMITTER 
BOARD 

ISS 3,  SECTION  501-211-102 

Fig.  1-G6B  Handset  Assembly  (G7B  Handset  is  Arranged  Similarily) 

(2)  Connect  yellow  and  green  leads  to  the 

terminals  from  which  the  white  leads  were 

removed  •so  that  the  yellow  lead  is  electrically 

wired  to  the 

terminal  on  the  network  and 

the  green  lead  is  wired  to  the 

GN 

terminal  on 

the network.t 

(3)  Test  the  handset  through  the  full  range  of 

volume  control. 

3.02 

When  connecting  G6- and  G8-type  handsets 

to 

telephone  sets  equipped 

with 

TOUCH-TONE 

dials,  the  dial  must  provide  common switch  contact 

arrangements  which  will  prevent  dial  sidetone 
amplification  by  the  handset  amplifier.  If  the  set 
contains  a  25A3  (MD),  25B3  (MD).  or  25H4  (MD) 
dial,  install  a  25W3,  25Y3,  or  25P4,  respectively, 
and connect dial  and handset  as shown in  Table  B. 

3.03 

When  connecting  G6- or  G8-type  handsets 

to 

1660-series  (MD)  telephone  sets  equipped 

with  26B  (MD)  or  26D  (MD)  card  dialers,  install  a 

26F  card  dialer  and  connect  dialer  and  handset  as 

shown  in  Table  B. 

Schematics 

3.04 

Fig.  3  through 

show  schematic  diagrams 

of  the  amplifier  type  handsets. 

4. 

MAINTENANCE 

4.01 

M aintenance  of  G6-,  G7-,  and  G8-type 

handsets is limited  to  the  following: 

eReplacing  cracked  or  broken  receiver  and 

transmitter  caps. 

e Replacing  defective  transmitter  units. 

eReplacing  defective  handset  cords. 

eCleaning  with water-dampened  cloth. 

4.02 

Maintenance  of  Gl3-type  handsets  is  limited 
to  cleaning  with  a  water-dampened  cloth, 

as  the  transmitter  and  receiver  caps  are  cemented 
to  the handset handle at  the  time  of  assembly. 

Page  3 

BSP 

501-211·102-i03_1970-10·03.jpg  Scanned  by  Frank Harrell, (Cowboy  Frank) Castle 

Rock, Colorado  Mar02,  2012  22:07:22 

Summary of Contents for G13

Page 1: ...er board and a potentiometer assembly mounted in the handle Internal connections are made by a flexible circuit strip and plug in connectors 2 05 A single stage transistorized amplifier is located on the receiver board and amplifies the received signal A polarity guard circuit mounted on the transmitter board assures proper polarity of the de voltage supplied to the amplifier G7 Type Weak Speech 2...

Page 2: ... connections are made by a flexible circuit strip and plug in connectors The cord connects to the terminal board in the transmitter cavity 2 12 The GSB handset replaces the GSA The transistorized amplifier and polarity guard units are mounted on a printed circuit board located in the receiver end of the handle G13 Type Impaired HeBring 2 13 The G13 type handset is similar to the G6B handset except...

Page 3: ... 25Y3 or 25P4 respectively and connect dial and handset as shown in Table B 3 03 When connecting G6 or G8 type handsets to 1660 series MD telephone sets equipped with 26B MD or 26D MD card dialers install a 26F card dialer and connect dialer and handset as shown in Table B Schematics 3 04 Fig 3 through 9 show schematic diagrams of the amplifier type handsets 4 MAINTENANCE 4 01 M aintenance of G6 G...

Page 4: ...ilable for field use If the original cordrequires replacement modify and install an H4CJ cord as follows 1 Carefully remove outer plastic covering on two white conductors with diagonal pliers Page 4 2 Tone out and identify one white conductor For identifying purposes loose knots may be tied in each end of this conductor designating it green The other white conductor then becomes yellow 3 Loop and ...

Page 5: ...ne BK BK BK RR term on net w w w GN term on net 0 BK 0 BK 0 BK C term on net G W G W C term on net v v IR speakerphone lead 0 0 Tl speakerphone lead S BK RR term on net Connect these leads to spare terminals on network terminal hoard or key terminal as required POTENTIOMETER R3 G IYI SKI TERMINAL BOARD w R G G BK BKI _j PRINTED WIRING BOARD Ll I I CRI I L Fig 3 G6B Handset Schematic C6 BSP 501 211...

Page 6: ...NNECT TO CONNECT TO TB4 TB2 R TR R Term 3 BK BB BK Term 5 y BBX W Term 8 G w Wt Term 7 Connect the Y handset lead to the W termi nal with the W lead going to terminal 2 of TB2 t Connect the G handset lead to the W termi nal with the W lead going to terminal 10 of TB2 TRANSMITTER BOARD RCVR JACK Fig 4 G6AR Hand el Schematic BSP 501 211 102 i03_1970 10 06 jpg Scanned by Frank Harrell Cowboy Frank Ca...

Page 7: ... RCVR A R l I f I I I c J i I Tl f 1 y Ll Rl L2 l l C2 CJ f V 1 cs Cl I Fig S 678 Handset Schematic TRMTR UG PL POTENTIOMETER BOARD R2 POT PLUG I RCVR JACK POTIENTIOWETER RZ ln u RJ RCVR BOARD RCVR X I I B I I 11 5 _ _R _j l ii m Fig 6 G7AR Handset Schematic Page 7 BSP S01 211 102 i03_1970 10 07 jpg Scanned by Frank Harrell Cowboy Frank Castle Rock Colorado Mar02 2012 22 08 46 ...

Page 8: ...OARD POT PLUG IWI IWI RCVR JACK RCVR BOARD fig 7 G8A Handset Schematic TERMINAL BOARD 0 w Ll POTENTIOMETER AND PUSH TO LISTEN SWITCH ASSEMBLY SEE NOTEI PRINTED WIRING BOARD I CRI I L _ J C5 R2 NOTE Tl CONTACTS a b BREAK BEFORE c d MAKE fig 8 G8B Handset Schematic SSP S01 211 102 i03_1970 10 08 jpg Scanned by Frank Harrell Cowboy Frank Castle Rock Colorado Mar 02 2012 22 09 09 RCVR I ti r J ...

Page 9: ... L__ C J Rl Cl C2 CJ E 7 1 I A I I I I I I I l1 I CRI 1 L______j PRINTED WIRING BOARD lc6 Ql R2 lll T1 F cs NOTE COJTACTS b ClOSE FIRST AFTER COMTACT5 c d CLOSE CONTACTS a b OPEN Fig 9 G13A and G13B Handset Schematic BSP S01 211 102 i03_1970 10 09 jpg Scanned by Frank Harrell Cowboy Frank Castle Rock Colorado Mar 02 2012 22 09 28 l f RCVR A Page 9 9 Pages ...

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