TTI Freequency TCB-880, Service Manual

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Q941 KRC111S KEC Mute
Q942 KRC112S KEC TX B+ Mute at TX Mode
Q951 KTA1241 KEC Back Light LED Control
Q952 KTA1241 KEC Back Light LED Control
Q953 KRC101S KEC Back Light LED Control
Q954 KRC101S KEC Back Light LED Control
Q961 KRC110S KEC TX AF Mute at RX Mode
Q962 KRC111S KEC MIC AF Path at AM Mode
Q963 KRC111S KEC MIC AF Path at PA Mode
3-2. IC
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Ref No. Description Manufacturer Function
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IC101 TK144889V TOKO IF IC
IC102 KIA358F KEC AGC, Squelch Control
IC201 KIA7217AP KEC AF Power Amplifier
IC301 LC7152NM SANYO PLL
IC401 KIA4558F KEC FM TX AF
IC801 TMP87PP21DF TOSHIBA CPU
IC802 24WC02 ATMEL EEPROM
3-3. Manufacture Information
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KEC ---------------------- KEC Co., LTD.
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SANYO ---------------------- SANYO Semiconductor Co., LTD.
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TOKO ---------------------- TOKO, Inc.
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TOSHIBA ---------------------- Toshiba Semiconductor. Co., LTD.
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ATMEL ---------------------- ATMEL Co., LTD