Panasonic KX-TG7741S Service Manual page 25

RF part signal route
SIGNAL ROUTE
INTERCOM
HANDSET TO
BASE UNIT
INTERCOM
BASE UNIT
TO HANDSET
GREETING
RECORDING
GREETING PLAY
TO TEL LINE
ICM RECORDING
ICM PLAY TO
SPEAKER
DTMF SIGNAL
TO TEL LINE
CALLER ID
BELL DETECTION
HANDSET RF
[ TX_ROUTE ]
HANDSET RF
[ RX_ROUTE ]
BASE UNIT RF
[ TX_ROUTE ]
BASE UNIT RF
[ RX_ROUTE ]
Note:
: inside of Handset
IN
HANDSET MIC - R73/74 - C11/13 - RA4 - IC1(22/23)
- <HANDSET_RF_TX_ROUTE> - ANT. ---
ANT - <BASE_UNIT_RF_RX_ROUTE> - IC501(2/3 - 41/43) - SPEAKER
MIC - C457/C458 - RA452 - IC501(37/38 - 94/95) - <BASE_UNIT_RF_TX_ROUTE> - ANT
--- ANT. - <HANDSET_RF_RX_ROUTE> - IC1(28/27) - C86 - L74
- HEADSET_JACK(5 - 4) - R11 - HANDSET SPEAKER
HANDSET MIC - R73/74 - C11/13 - RA4 - IC1(22/23)
- <HANDSET_RF_TX_ROUTE> - ANT. ---
ANT - <BASE_UNIT_RF_RX_ROUTE> - IC501(2/3 - 69/70) - IC601
IC601 - IC501(69/70 - 27) - C184 - Q161 -Q141- D101 - L101/[L102-P101] - T/R (TEL LINE)
T/R (TEL LINE) - L101/[P101-L102] - D101 - Q141 - R165 - C173 - R178
- IC501(25 - 69/70) - IC601
IC601 - IC501(69/70 - 41/43) - SPEAKER
IC501(27) - C184 - Q161 -Q141- D101 - L101/[L102-P101] - T/R (TEL LINE)
T/R(TEL LINE) - L101/[P101 - L102] - C105/C106 - R105/R106 - R108/R107 -IC501(23/21)
T/R(TEL LINE) - L101 - C105 - R105 - R110 - R111 - R112 - IC501(18)
IC1(44/45) - L809 - C812 - DA801 - C803 - C801 - ANT
ANT - C801 - C803 - DA801 - C826 - IC1(46/47)
IC501(95/94) - L802/C813 - C812 - DA801 - C803 - DA802 - C851/C853 - ANT1/ANT2
ANT1/ANT2 - C851/C853 - DA802 - C803 - DA801 - C826 - C854/C853 - IC501(3/2)
KX-TG7741S/KX-TG7742S/KX-TG7743S/KX-TGA470S
ROUTE
25
OUT