Sherwood R-325 Service Manual page 13

Audio/video pro-logic receiver
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3. Block Diagram
ee
ed
a oe
——
Toura2 ©
TI2P34 O—|
4. Key Matrix
KEY IN1
PIN 43
KEY INS
PIN 44
KEY IN4
PIN 40
KEY IN5
PIN 39
KSCAN1
PIN 61
DISPLAY
SW333
SEARCH
SW332
SLEEP
(STBY)
SW336
PROGRAM COUNTER)
alt
ROM
PROGRAM
MEMORY,
eZee potas
@
®
KSCAN2 | KSCANS3
FM MODE |CEN MODE
SW327
SW324
MEMORY
SW328
CENTER
A
SW323
Prologic
SW315
CLOCK
BUZZER
CLOCK
OUTPUT
eee, pee
KSCAN4 | KSCAN5 | KSCANG6
PIN 64
REAR
Vv
SW320
TUNE
A
SW312
REAR
SWws321
CENTER
V
SWw322
15
sane
Pee Tm
eneraLres. K—)
Krone
Ke pores @-@O
KO} vor Ki rrer @-O
Ky vorre Krome @-O
Krome Kroner @-@
Ky vorty Kroon ©-@O@
Lom Feo OO
=x
=» eoee
>
Pr00-P 107-2)
00) 9)
PORTO
FIPO-FIP33
O-O0-80-8
O Vine)
KSCAN7
PIN 67
SIMULATED]
3-STEREO
SW319
SW316
THEATER
SW317

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