Sherwood R-725/RDS Service Manual page 7

2. Input/Output Terminal Functions
G2/G1 Grid signal output for FIP.
POWER DOWN | Input for power down(Active low).
RDS CHECK Input for RDS check.
RDS START Input for RDS start.
NC
REMOCON
Input for remote control signal. (Active low).
Puc
[hte
Output for main mute.
1/2
3
4
5
7/19
10/11
12 MAIN MUTE
Output is low level under the following conditions.
1. When power is turned on or off.
2. When function is changed.
3. When MONO or STEREO is changed.
4. When Low level is inputed to "PROTECTION" port of CPU.
5. When mute signal is received from the commander.
Output datasignal to MC14094, LC7821, LC7822 and TC9299.
Output clock signal to MC14094, LC7821, LC7822 and TC9299.
Input for selecting Model. ('L'>R525, 'H'R-725, AV725)
C-MUTE Output for center mute.
Output is low level under the following conditions.
1
1
2
2
2
3
4
15
0
1
2
23
24
1. When power is turned on or off.
2. When center mode is on or off.
3. When center mode is switched.