Yamaha T3n Service Manual page 100

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K
I
BLOCK DIAGRAM （ブロックダイアグラム）
INT
INPUT 【+24dBu】MAX JK401
3
CH A 1 2
JK403
CH B
3
1 2
JK402
FG
CPUT
NOTE)
ID SWITCHES FUNCTION
SWITCH No.
1
2~6
NOTE)
DATA PORT PIN FUNCTION
PIN No.
1, 2, 3, 6
4
5
7, 8
FILTER
FG
J : 100V 50Hz/60Hz
U : 120V 60Hz
H, B, O : 230V 50Hz
A : 240V 50Hz
T5n/T4n/T3n
J I H
INSWT
MODE
GAIN -3.4dB
3
32 dB
1
BA
2
IC401 -6dB
26 dB
INV
GAIN 0dB PHASE
(CH A)
GAIN
GAIN -3.4dB
5
7 STEREO
BA
BRIDGE
6 PARALLE L
IC401
-6dB
INV
INPUT V
GAIN 0dB PHASE
MONITOR (CH B)
BA (CH B)
STEREO
MODE
BRIDGE
PARALLE L
INPUT V
MONITOR (CH A)
BA
MODEL ID
CN405 (37P)
CN801 (37P)
+5V
SW801
FUNCTION ID SWITCHES
TERMINATIO N
IC801
MODEL I D
CPU
HD64F7044F28
JK802 IC802
DATA PORT 1
FUNCTION
(RJ-45)
RS-485
N.C.
JK801
DO/RT DRIVER/RECEIVER
DATA PORT 2
DO/RT
(RJ-45)
GND
6.4512MHz
PST
PROTECTION
PSWT
SUB TRANSFORMER
IC107
POWER
F101
T101
+5V +5V
Thermal cutoff
SW101
IC108
SUB TRANSFORMER
+15V
CN101 (6P)
EMI
RELAY
IC109
+15V
Thermal cutoff
RELAY
+27V
DRIVE
T102 F102
G F
T5n T4n T3n
ATTT
IC414 IC404
CH A 6 7 6 7 IC406
INV INV
ATT 2 1
INV
31
GAIN 10dB
GAIN -10dB
position
GAIN 0dB
+15V +6V
-15V -6V
RY403
LEVEL CONTROL
CH B
IC414 IC405
ATT
2 1
6 7
31
INV INV
position
STEREO
GAIN 10dB
GAIN -10dB BRIDGE
PARALLEL
REMOTE
+15V
-15V
OUTPUT I
POWER ON/OFF
+5V
TEMP
TEMP
CLIP
OUTPUT V MONITOR
OUTPUT I
OUTPUT I MONITOR OUTPUT V
MUTE (REMOTE)
OUTPUT V
TEMP
PROTECTION STATUS
STANDBY (REMOTE)
BD
PROTECTION
CN602 (9P)
CN102 (9P) CN104 (2P) CN103 (2P)
TEMP
FAN CONTROL
MAIN TRANSFORMER
D125- 126
T103
OVER CURRENT
≧150A peak
SWITCHING
DRIVER
D101 SHUTDOWN
D151
(LATCH)
PS HEAT SINK SWITCHING
TEMPERATURE
≧100˚C CONTROL
IC105
D131- 134
+15V
≧80˚C
+15V
0V -15V
IC106
AC INPUT ≧130%
MAIN TRANSFORMER
HIGH VOLTAGE D127- 128
OVER CURRENT
≧150A peak SWITCHING
DRIVER
D102 SHUTDOWN
PS HEAT SINK
D152
(LATCH)
≧100˚C
TEMPERATURE
≧80˚C
+15V
0V
T104 D129- 130
E D C
PAT(A)
+B
CLIP EEEngine(+B)
VOLTAGE
LIMITER
LIMITER MUTE POWER
VI LIMITER
MUTE +14V(A)
(CH A)
EEEngine(-B)
10mV/˚C TEMPERATURE
SENSOR
AMP HEAT SINK
-B
PAT(B)
+B
CLIP EEEngine(+B)
VOLTAGE
LIMITER
LIMITER MUTE POWER
VI LIMITER
MUTE +14V(B)
(CH B)
EEEngine(-B)
10mV/˚C
TEMPERATURE
SENSOR
AMP HEAT SINK
-B
∑
I
MUTE
MUTE
CLIP
TEMPERATURE
LED LOGIC
CALCULATOR
+100˚C IC605, 606
OUTPUT V
OVER HEAT
LOAD
SHORT
DC FAULT
FAN (L) FAN (R)
+27V
+B(A)
GND(A)
-B(A)
+14V(A)
0V(A)
+15V
GND
-15V
+B(B)
GND(B)
-B(B)
+14V(B)
0V(B)
+27V
VOLTAGE BD
DETECT
Free World of Manuals
B A
T5n/T4n/T3n
GAIN
35.5dB
SP602
OUTPUT
(SPEAKERS)
OUTPUT I 1+
MONITOR (CH A)
BA
1- 2-
OUTPUT V 2+
CH A
MONITOR (CH A)
BA
SP601
GAIN
35.5dB
CH B
OUTPUT I 1+
MONITOR (CH B)
BA
1-
2-
OUTPUT V 2+
FG
MONITOR (CH B)
SP603
BA
NOTE)
HIGH FREQUENCY
Voltage of +/-B with no LOAD
(For U destination)
±B[V]
MAX CURRENT MODEL
≧50A peak (2.5kW @ 2Ω) T5n 169
T4n 155
T3n 140
FPT
+5V (POWER ON)
LD111
STANDBY (REMOTE) POWER/STANDBY
DRIVER
GR/OR(GR+RE)
Q118 LD110
REMOTE REMOTE
GR
LD112
TEMP TEMP
RE
LD109
PROTECTION PROTECTION
RE
+5V
LD105
CH A
DRIVER
CLIP/LIMIT
Q103- 106 CH B RE
Q109- 112
LD106
Q116- 117
LD103
CH A
OUTPUT SIGNAL
CH B GR
LD104
+5V
LD108
CH A
DRIVER
MUTE
Q113- 114 CH B RE
LD107
28CA1-2001010843
T5n/T4n/T3n
5
1
2
3
4
5
6
7
8