Yamaha T3n - Manual (Page 15)

T5n/T4n/T3n Owner’s Manual
71
Block Diagram
+ + – –
+ – G + – G
3
12
3
12
BA BA BA
POWER
BA
INV
INV
INV
INV
INV
BA
BA
BA
INV
INV
1+ 2+
1–
2–
1+ 2+
1–
2–
CH A CH B
FG
+5V
–6dB –6dB
MODEL ID
OVER CURRENT
SHUTDOWN (LATCH)
SHUTDOWN (LATCH)
TEMPERATURE
OVER CURRENT
SWITCHING CONTROL
VOLTAGE LIMITER TEMPERATURE
SENSOR VI
LIMITER
PHASE
SHIFT SWITCHING
DRIVER
TEMPERATURE CALCULATOR
SWITCHING
DRIVER
VOLTAGE DETECT
+15V
–15V +15V
AC INPUT
HIGH VOLTAGE
+15V
EMI
FILTER
RELAY DRIVE
FAN CONTROL
PROTECTION
POWER ON/OFF
∑
1
+B(A)
FAN (L)
TEMP
FAN (R) +27V
EEEngine(–B) EEEngine(+B)
CLIP
HIGH FREQUENCY MAX CURRENT
+B
10mV/˚C
–B
AMP HEAT SINK
+14V(B)
GAIN 35.5dB
POWER
VOLTAGE LIMITER TEMPERATURE
SENSOR VI
LIMITER
EEEngine(–B) EEEngine(+B)
CLIP
LIMITER
MUTE
LIMITER
MUTE
+B
10mV/˚C
–B
AMP HEAT SINK
MUTE (CH A) MUTE (CH B)
+14V(A)
GAIN 35.5dB
DRIVER DRIVER +5V (POWER ON)
POWER/STANDBY GR/OR (GR+RE)
OUTPUT (SPEAKERS)
FG
OUTPUT I MONITOR (CH B) OUTPUT V MONITOR (CH B) OUTPUT I MONITOR (CH A) OUTPUT V MONITOR (CH A)
REMOTE GR TEMP RE PROTECTION RE CLIP/LIMIT RE OUTPUT SIGNAL GR MUTE RE
CH B CH A CH B CH A CH B CH A
+5V
STANDBY (REMOTE)
REMOTE
TEMP
MUTE
OUTPUT V
CLIP
PROTECTION
DRIVER
+5V
GND(A) –B(A) +14V(A) 0V(A) +15V
+15V
PS HEAT SINK
+5V
0V +15V 0V
GND –15V +B(B) GND(B) –B(B) +14V(B) 0V(B) +27V
BD
MAIN TRANSFORMER MAIN TRANSFORMER
SUB TRANSFORMER SUB TRANSFORMER Thermal cutoff Thermal cutoff
POWER
RELAY
+27V
J : 100V 50Hz/60Hz U: 120V 60Hz H: 230V 50Hz A: 240V 50Hz
PROTECTION
>
150 Apeak
> 150 Apeak
>
80˚C
>
80˚C
>
100˚C
>
50Apeak (2.5kW @ 2
Ω
)
>
130%
TEMPERATURE
PS HEAT SINK >
100˚C
ELECTRIC VARIABLE RESISTANCE
GAIN –3.4dB
STEREO BRIDGE
PARALLEL
STEREO BRIDGE
PARALLEL
STEREO BRIDGE PARALLEL
BA
GAIN –3.4dB
FG
GAIN
26dB 32dB
MODE
MODEL ID
INPUT V MONITOR
MODE
PHASE CONTROL
LEVEL CONTROL
REMOTE
+6V –6V
ID
SWITCHES
RS-485 DRIVER/
RECEIVER
CPU
DATA PORT 1
(RJ-45)
DATA PORT 2
(RJ-45)
OVER HEAT
MUTE
DC FAULT
LOAD SHORT
LED LOGIC
+100˚C
OUTPUT I OUTPUT I
TEMP
OUTPUT V
TEMP
+15V +5V
BD
CLIP
INPUT V MONITOR (CH B) INPUT V MONITOR (CH A) MODE
GAIN 0dB GAIN 0dB
GAIN –10dB
GAIN 10dB
REMOTE
GAIN 0dB
GAIN –10dB
GAIN 10dB
PHASE (CH B) PHASE (CH A)
+15V –15V
CH B ATT 31 position CH A ATT 31 position
LEVEL CONTROL
OUTPUT V MONITOR OUTPUT I MONITOR MUTE (REMOTE) TEMP PROTECTION STATUS STANDBY (REMOTE)
6.4512MHz
+5V
–15V
OUTPUT V
CH A INPUT [+24dBu] MAX CH B