Sailor RE2100, Technical Manual

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3 SERVICE RE2100
3.7.3.3 ADJUSTMENT OF MODULATOR
1. Connect scope probe to the connection between C66-4 and C67-4 (TP3-4).
2. Select service programme SP-05-0.
3. Press handset key.
4. Adjust TR01-4 to maximum signal.
5. Release handset key.
6. Select service programme SP-05-1.
7. Select H3E on the keyboard.
8. Press handset key.
9. Adjust R190-4 to minimum signal (noise) on the scope.
10. Release handset key.
11. If this adjustment is the only one executed after repair, please execute 3.7.3.4. Adjustment of RF
Limiter.
3.7.3.4 ADJUSTMENT OF RF LIMITER
1. Connect scope probe to emitter of Q19-4 (TP4-4).
2. Select service programme SP-05-0.
3. Press handset key.
4. Adjust LO7-4, LO8-4, and TR02-4 to maximum signal.
5. Turn R87-4 fully clockwise. The signal is cut.
6. Adjust scope until there is full deflection on the scope (8 div.).
7. Adjust R87-4 until the deflection seen on the scope is 7.2 div. The signal is not cut.
8. Release handset key.
3.7.3.5 ADJUSTMENT OF CARRIER INSERTION
1. Connect scope probe to emitter of Q19-4 (TP4-4).
2. Select service programme SP-05-0.
3. Press handset key.
4. Adjust scope until there is full deflection (8 div.) on the screen.
5. Release handset key and press <ENT> on the keyboard.
6. Select service programme SP-05-1.
7. Select H3E mode on the keyboard.
8. Press handset key.
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