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T-91/91L
CIRCUIT DESCRIPTION
1C1: CXP5016-210S
(X14-2210-10)
Microprocessor
Key matrix connection
i
®
SCAND 4 ScANZ <SCINT
5V
NC
RESET
} 4194304MHz CRYSTAL
SERIAL DATA
NC
28 5V
FL
1G
FL 2G
FL
3G
KEY SCANO
FL
4G
KEY SCAN 1
GRID
FL 5G
15
FL 6G
KSCAN3 K SCAN2 KSCAN]
K-SCANO
16
FL 7G
K: RETURN ©.
TV BOTH
17
FL 8G
TV MAIN
TB/S1S
Fl a
MONO
T9si4
FL b
VHF H
T10/$13
Fl c
PLL DATA
TS12
Fld
PLL CLOCK
1121811
Fle
PLL LATCH
TI3IS 10
KEY SCAN 4
T4IS9
POWER
T15/S8
FL
SEGMENT
MUTING
$7
BILINGUAL
sé
NC
$5
so
$4
TEST
$3
SERIAL DATA
SERIAL BUSY
be
ij
GNO
*T-31 0 eeT-91L
Functions
of diodes
and
switches
(0: Without
diode,
1: With
diode)
Destination
Band
Receiving Frequency
jInter-Channel]
Intermediate
Auto
BO
Range
Frequency
Tuning
Frequency
| Terminal
FM
87.5MHz-108.0MHz
+10.7MHz |
631kHz-1602kHz
kHz
87.5MHz-108.0MHz | 50kHz
53 1kHz-1602kHz
18 3kHz-28 1kHz
87.5MHz-108.0MHz
53 1kHz-1602kHz
Lw
"
The T-91 Types M,U and UE are modified into Types E1 or K by switching the inter-channel space with the CHANNEL
SPACE SW (S31) on the rear panel and by adding a diode (1$$133) for BAND 2.
Before switching, turn the AC off (by pulling out the power plug), switch the switch, and turn AC on again.
If the AC power is left ON, switching the switch does not change the destination.
** With the T-91L (France made), a diode (ISS133) is added for BAND
1 to perform manual tuning in LW only.
ie)
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