Yamaha T3n, T4n, T5n Diagram Block

INPUT						MODE
[+24dBu] MAX
				GAIN
				–3.4dB		32dB
CH A	1	3	2	BA
						–6dB
						26dB
G
–
+
G
–
+						GAIN
				GAIN
CH B		3		–3.4dB	STEREO
	1		2	BA
FG					BRIDGE
					PARALLEL	–6dB
						INPUT V
						MONITOR (CH B)
						BA

INV		CH A ATT	INV
		31 position
GAIN	PHASE
			GAIN
0dB	(CH A)
			–10dB
		+15V	+6V
		–15V	–6V
		LEVEL CONTROL
			GAIN
			–10dB
			INV
INV		CH B ATT
GAIN	PHASE	31 position
0dB	(CH B)

			LIMITER	MUTE
	INV	INV		MUTE
RESISTANCEVARIABLE	GAIN			(CH A)
		GAIN
	10dB
		0dB
ELECTRIC	GAIN
	10dB
	INV
		STEREO
		BRIDGE	LIMITER	MUTE

PARALLEL	MUTE
	(CH B)
REMOTE

CLIP

VOLTAGE

LIMITER

VI

LIMITER

10mV/˚C TEMPERATURE SENSOR

AMP HEAT SINK

CLIP

VOLTAGE

LIMITER

VI

LIMITER

10mV/˚C TEMPERATURE

+B

EEEngine(+B)
GAIN
35.5dB
POWER	OUTPUT I
+14V(A)
	MONITOR (CH A)
	BA
EEEngine(–B)	OUTPUT V
	MONITOR (CH A)
	BA
–B
+B
EEEngine(+B)
GAIN
35.5dB
POWER	OUTPUT I
+14V(B)
	MONITOR (CH B)
	BA
EEEngine(–B)	OUTPUT V

OUTPUT

(SPEAKERS)

1+

1– 2–

2+	CH A
–
+
+
–
1+	CH B

1– 2–

Diagram Block

STEREO	MODE
BRIDGE
	INPUT V
PARALLEL
	MONITOR (CH A)
	BA
	MODEL ID
	MODEL ID	INPUT V MONITOR	MODE	PHASE CONTROL
+5V
ID

LEVEL CONTROL REMOTE

CLIP

OUTPUT V MONITOR

+15V	OUTPUT I
–15V
POWER ON/OFF	∑ 1
+5V	TEMP
		MUTE
		TEMPERATURE
	+100˚C	CALCULATOR
	TEMP

SENSOR

AMP HEAT SINK

MUTE

CLIP

LED

LOGIC

OUTPUT V

MONITOR (CH B)

BA

–B

HIGH FREQUENCY

MAX CURRENT

>50Apeak (2.5kW @ 2Ω)

+5V (POWER ON)

FG

2+

SWITCHES
	CPU
DATA PORT 1
(RJ-45)	RS-485

OUTPUT I MONITOR

MUTE (REMOTE)

TEMP

PROTECTION STATUS

	OVER HEAT
OUTPUT I	LOAD
OUTPUT V
	SHORT
OUTPUT V	DC FAULT

STANDBY (REMOTE)

DRIVER

REMOTE

TEMP

POWER/STANDBY GR/OR (GR+RE)

REMOTE

GR

TEMP

RE

Manual Owner’s T5n/T4n/T3n

	DRIVER/
DATA PORT 2	RECEIVER
(RJ-45)

	POWER		SUB TRANSFORMER
			+5V
			Thermal cutoff
			SUB TRANSFORMER
EMI
FILTER	RELAY
	RELAY	+27V	Thermal cutoff
FG
	DRIVE

J : 100V 50Hz/60Hz

U:120V 60Hz

H:230V 50Hz

A:240V 50Hz

STANDBY (REMOTE)

6.4512MHz

PROTECTION
	OVER CURRENT
	>150 Apeak
+5V	PS HEAT
	SINK
	TEMPERATURE >100˚C
	>80˚C
+15V	+15V
	0V
AC INPUT	>130%

HIGH VOLTAGE

+15V

OVER CURRENT

>150 Apeak

PS HEAT

SINK

TEMPERATURE >100˚C

+15V >80˚C

0V

BD	PROTECTION
			FAN (L)
			FAN (R)
		TEMP	+27V
		FAN CONTROL
		MAIN TRANSFORMER	+B(A)
			GND(A)
			–B(A)
SHUTDOWN	SWITCHING		+14V(A)
		DRIVER
(LATCH)	SWITCHING		0V(A)
	CONTROL		+15V
		+15V
			GND
	PHASE SHIFT	–15V	–15V
		MAIN TRANSFORMER	+B(B)
			GND(B)
			–B(B)
SHUTDOWN		SWITCHING	+14V(B)
		DRIVER
(LATCH)			0V(B)
			+27V
		VOLTAGE BD
		DETECT

PROTECTION	PROTECTION
	RE

+5V

CH A

DRIVER CLIP/LIMIT

CH B RE

CH A

OUTPUT SIGNAL

CH B GR +5V

CH A

DRIVER MUTE

CH B RE

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