Kenwood TS-60S Service Manual page 16

CIRCUIT DESCRIPTION
6. Switch AID input 7. EEPROM
The voltage divided by nine switches S16, 5 2 to S9,
Adjustment data is stored in the EEPROM, which
S10 to S15, and S17 to S19 is applied to the PJD input
consists of 256 16-bit registers. Data can be written to
pin of the microcomputer when a button is pressed. and read from the EEPROM. Each time the power is
(Fig. 16) When t w o or more buttons in the same group
switched on, data is read from the EEPROM. If corrupt
are pressed at the same time, only the button with the data is detected, the default adjustment data is used.
highest priority is detected (listed below).
Adiustment data can be written into the EEPROM in
KADl
I
KADZ
1
Priority
s16
1
SPLIT
1
SIT
IF.LOCK I
1
S3
/
AIPIAT
I
S12
I
DOWN
1
2
S5
S6
S7
Table 5
S8
I
M>V
I
S17
I
A=B
service adjustment mode. (Fig. 17)
-
RIT
M IN
SCAN
7
-
Fig. 17 EEPROM circuit
S9
I
CLR
I
S18
I
SSBICW
1
8
S2
I
MENU
1
S19
I
FMIAM
1
9
N
ul
-
' 2
' 0
DIGITAL UNIT
I
I
LCD ASSY
. .
S14
S15
S10
Flg. 16 Switch AID input circuit
MHz
AiB
M N
4
5
6