P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
VFD
ENCODE
KEYS
EEPROM
U83 MAX3221 (FPP)
RJ45 RS232 SOCKET (REAR PANEL)
Q85 Q86 (FPP)
IR IN/OUT SOCKET ( REAR PANEL)
Q89 inverter(FPP)
Protect Circuit (High when Protect)
Q91 (PSU)
OP91 OPTOISO (PSU)
RL91 standby relay (PSU)
U84 U85 7400 (FPP)
D81 Tri-color LED (FPP)
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P5.6
P5.7
U108 U113 U208 U213
CD4094 (PRE)
RL101 ... RL112, RL201 ... RL212
For Input Select and Biamp Filter Switch
Q130 Q131 Q230 Q231 for Mute
U105 (PRE) TC9274
U110 U210 (PRE)
CD4094
U104 U107 U204 U207 (PRE) MAX4621
30dB Attenuator, Q101...Q103, Q201...Q203,
6.5 Gain/ 0.5 Gain Switch
U205 (PRE) TC9274
U109 U209 (PRE)
TC9274
RL301 RL302 RL401 RL402
OUTPUT RELAYS (LAMP/RAMP)
U109 U209 (PRE)
TC9274
MCU
AT89C51
3. SYSTEM CONTROL PATH
3-11
Содержание Masters M3
Страница 12: ...P006 P005 P001 P002 P003 P004 P008 P007 P011 P009 P013 P016 P015 P014 P012 P010 2 Packing accessory section 2 3...
Страница 20: ...DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1 SYSTEM 11MHz CLOCK 2 AT89C51 reset is high active 3 6...
Страница 21: ...3 volume control DATA and CLOCK 4 REC ZONE select DATA and CLOCK 3 7...
Страница 22: ...5 Input select DATA and CLOCK 3 8...