Sherwood R-325 Service Manual page 12

Audio/video pro-logic receiver
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5. When displayed preset number is changed during memory scan.
[Pin No.| Symbol
6. When Low level is inputed to "PROTECTION" of CPU.
38
TUNER
Output for tuner mute.
MUTE
7. When mute signal is received from the commander.
Output is high level under the following conditions.
1. When power is turned on or off.
2. When tuner band is changed.
3. When tuning up or down button is pressed.
RDS CLOCK
4. When preset button is pressed.
Vss
7001 CE
Chip enable output for LM7001.
52
50/51
| 7001 CLK/DATA}
CLOCK/DATA signal output for LM7001
| 52 |
Vdd
+5V power supply.
53/54
$3/S2
Output to select the video signal VCR1 or VCR2.
$3.
|
REMARKS
|
|
__vcR1 |
LH
__ Initial settings
|
| vCR2;
H
;
L
|
|
'OTHERS;
A
|
A _ | A: Previous state
|
* Last memory function is available
VOL-DOWN/UP | Output data for volume control.
VOLLED
5 8 _ |
_STBY-LED
59160 | SEG 16/16
61~68[
_SECTA~7
77
[__Vioad
69~7
SEG6 ~ 1
Segment signal output for FIP.
76~8
GRID1~5
Grid signal output for FIP.
55/56
57
oO
BE
14

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