Circuit Description - Sherwood RD-6106/G/RDS Service Manual

CIRCUIT DESCRIPTION
CXP8289600-1
1. Pin Description
8g
O O
{00x@9)
1G o+—{(1)
12G o+—(2)
PULLUP o—+(3)
POWER DOWN o—+(4)
VOLUP o—+(5)
RDS CLK o—+(6)
VOLDOWN o—+(7)
REMOCON o—+(8)
RDS DATA o—+(Q)
N.C o—+(40)
PLLCE o+—(11)
PROTECTION o+—(12)
. STEREO 0+—+(9
IF COUNT 0-—+(14)
CLK 9273/9163 0-+—+(15)
DATA 9273/9163 ©-—+(16)
KEY IN3 0-—+(17)
KEY IN2 o=—+(18)
KEY IN1 o+—+(19)
DIGI LINK o-—@0)
CE 9273/9163 0-1)
DATA 62446/72131 0-2)
CLK 62446/72131 ©-—@9
LATCH 62446 0-24)
CLK 4110/4228/912/2724 0-—+@5)
SDI 4110/912/2724 0-6)
CDI 4110/4228/912 °-—+@?)
AVREF ©-—+@8)
SPKRLY °-+@9)
TUNED ©+—@0)
23a
BS
83
)
LATCH2724/CS912 0+—+-()
2724RSR 0-—+-()
STEP OPT o- +)
GND o
RESET o
SET OPT 0+—+@)
EXTAL ©
11
XTAL ©
Qa
(=)
>
fe)
+5VBACKUP 0~—>()
O S16
UFDP-30V o-—+@)
TUN MUTE ©
0 $15 °o $14
MAIN MUTE ©
R MUTE ©
© $13
S MUTE ©
C.MUTE ©
oO $i2
$11
$10
S89
$8
S7
S6
$5
$4
$3
$2
°o $1
© STBY LED/RLY
TON DIR LED
SPK LED
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
PD 4228/4110
CS 4228
VIDEO S2
VIDEO $3
E