Motorola R-20010 Maintenance Manual page 506

19
24
23
33
11·82. 84
91·98
66
90
88
81
35
36
41
42
P1
I
OEMOO CAL AUDIO
I
I
I
I
I
I U2,3,4, 12
, I
ii'iiMPi
/T
ROMPi
/T
OPT ENABLE
/T
/ I
ROMPS
I
I
I
AO·A 1 2
ADDRESS
AND DATA
"'
00·07
BUFFERS
/
XRAM
FT RIW
"' I E
"' I
I
I
ii'OfN
I
I
I
I
~
EXT MOO RT N (I)
/ I
EXT MOO RT N (0) /
)
o-~
I
I
l i NT MOO R I N (0)
/ l iNT MOO RIN
(0) _,.
>I
o- ~
, I
1 KH z RI N 1 1 1
29 '
30
)
I
1 KHz RIN 101
o- _
I
u
15, 16, 1 7,32
1 -
ADDRESS
1 -
DECODING
1 -
-
U31A
U21A U21B
HIGH·PASS
-1
AMP
FILTER
INTEGRATOR
u
18, 19, 15. 23
I
CENTER
RCV DATA
SLICE
I
C IRCUIT
U1, U33
PROGRAM
HIGH RATE EN
f---
MEMORY
U9
r-
EN DATA
LATCHES
us
CONTROL
C LOCK
- -
t - - -
RAM EN
DATA
t -
RA M
03, K1
~
I
AUTO TEST
l
RELAY
t-
us
RF O N
L-..
110
01,2,4,5
ADDRESS
+ 12V I
U24.29
1
DECODING
DC
+SV
SWITCH
I
I
U228
U23
INVERTER
1
I
AMPLIFIER
I
MODULATION
SELECT
SWITCHES
/"'--, - INDICA I ES JUMPERS IF I RUNKING
0 0
MODULE IS LOCATED IN A 13 SLOT
c/_-,o
• INDICATES JUMPERS IF TRUNKING
MODULE IS LOCATED IN A 12 SLOT
TP5 TP4 TP3
U1 9B
"'
'
'"'
U1 0
1
SQUELCH
TRANSMIT 0
I
DATA TRANSMIT
~
COMPARATOR
I
AND RECEIVE
f-
f
v.c.
DATA
c.c.
1 -
U7, U8
I
144KHz
U4S,46
I
RECEIVE
r -
CLOCK
J PROGRAMMA
GENERATOR
AmNUATt
,..
8
REF
VOLT
DATA
U27
a
~~--
12.8 MHl
REFERENC
U3S U47
IF SEL
OSCILLATC
R
y
I
SHIFT
CON FIG.
4 /
REGISTER
LATCH
I
BAND SWITCH
U28
DIGITAL
SYNTHESIZ
E
+ SV (SYNTHESIZER, VCO REF OSC, FRED DOUBLER) L
RE~~Lz:TGiRS
+4.6V (VCO)
+ 9.6V (RF AMP)
+ 12VSW (OSC)
+
SVSW (TRANSLA TEA)
UJO
I
HIGH SPEED/
LOW SPEED
FILTER SWITCH