R113
6.7
C109 |
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| R15 |
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| R112 | C107 | R104 |
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7 | 6 |
| C8 | ||||||
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| R12 |
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IC101 | 5 |
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| R102 |
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R110 | C111 | R107 |
| Q7 |
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R111 | R103 |
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C113 |
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| R13 | C9 | ||
C127 |
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| C105 | R105 | T101 | ||||
| R109 | R108 | |||||||
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11 |
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| C106 |
| PC1 |
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D1
+5VD
5 | RLY1 | LF1 F1 |
6 |
7 |
| SA1 |
4 |
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3 |
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2 |
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| POS1 | |
| +24VD | |
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| SA2 |
CN1
a
b
. Analog Unit
10 |
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| 1 |
| D4 |
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| A |
| Analog Board | C117 | ||
LINERX 10 | CN102 |
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| R117 | |||
10 | CN9 |
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| 3 C126 1 |
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| To A | 4 | 2 | |
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| Digital Board | IC103 |
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Analog Front End | 11 | IC6 |
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10 |
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(IC5) |
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| MTX ENB |
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129 |
| MOM RX ENB |
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BREAK | RLY1 |
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Q3 | RELAY |
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| Q2 |
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C116 T102 C14 | L5 | CN2 |
| a | |
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R116
| R16 | L6 |
| R18 | b |
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C13 | C12 |
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| BELL |
R19 |
| PC5 |
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Block Diagram
TEL RX ENB
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| R205 C207 L201 CN201 | HANDSET | ||
8 | H/STX | R217 | R212 | C212 |
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| L204 |
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| C220 | C214 |
| R204 | C206 L202 |
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| C205 | L203 |
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H/STX |
| R206 |
MUTE | R208 | |
10 H/SRX | R209 | Q201 |
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| C234 |
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| C209 |
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VOL
ASIC (IC1)
MODEM
H/SRX ENB |
| R207 |
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IC102 | CN101 | SPEAKER |
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9 SPOUT SP AMP |
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| R234 | ||
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CN202 |
| SW202 | R235 | C229 |
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R232 | PAPER |
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SW201 R233 
C228
