Yorkville Sound service manual M1011A.SCH DATABASE HISTORY, MODELS - AP-3400, Date

		L_LEVEL
						C1				R6	HDRM+
		P1 CW 25A				47p				3K
		10K				BC560				6.4 uA ->
				16v
						Q1			Q2 300mV/47K
		C28		10u	R2				BC550
										R5
					1K
								D1			CLP+
		16v
				R1		R3				47K
	C16	10u		5K36:1%	2	17K8:1%		HARD LIMIT @ 11.2 Vp
							1
					3
						U1					CLP-
						1/2
						33078		D2	BC550
					R4					Q4
					1K				R7
FROM INPUT								Q3	47K
PCB:
						C2		BC550	R8
											HDRM-
L+						47p			3K
	8
L-
	7			+18
R+					33078 BYPASS:
	6
R-						+18		+18	+18
	5
+18
	4
	3
-18	2					C6		C26		C29
	1
	MS4					100n		100n		100n
	EY17			-18
GND
						-18		-18	-18
BLACK WIRE
DIRECT TO				GND
M1012						HDRM+		9.85		CLP+ 9.5
				+145				R17			R20
								270R			10k:1%
				R15		C3
				113K0:1%		1u	16v
						HDRM - CLP = 300mV				R19
										45K3:1%
				R16		16v	1u
				113K0:1%			C10
								R18			R21
								270R			10K:1%
		10u		-145		HDRM-					CLP-
			C15
		16v
						C11				R26	HDRM+
		R_LEVEL				47p				3K
		P2 CW	25A			BC560
						Q6
		10K	10u						Q7
				C25	R23
									BC550
			16v		1K			D7		R27	CLP+

+18

LEFT ACTIVITY ZD2

+18

ZD1

RIGHT ACTIVITY

500mW

D3

LD4

Iled=20mA

500mW

R98

R99

4v7

R10

4v7

LD3

330R

330R

GREEN

Q29

D4

220K

Q28

A13

ACTGND

Q5

A63

GREEN

BAV21

R97

C4

A63

C32

EXTRA BRIGHT LEDS!

470K

R101

BAV21

D36

100n

27p

LD1

220n 250v

R100

R9

470K

GND

D35

820R

220n

250v

R96

C42

C23

100K

RED

R11

R12

C43

C27 100K

LOG

220p

249R:1%

249R:1%

220p

33078

1/2

3

3

U2

R54B

1

1

47u

2

C9

R54A

47K

D5

D6

16v

47K

M1011A.SCH_DATABASE_HISTORY

MODEL(S):- AP-3400

#	DATE	VER# DESCRIPTION OF CHANGE
1	JUN/22/94	2.30	PC#4529_BD651->BDX53C_BD652->BDX54C
2	DEC/02/94	2.40	PC#4651_DEL_LD9->LD14_ADD_NJM431L
3 .		.	Q20A/B_Q21A/B
4	APR/08/97	2.50	PC#5353_R60A_1/2W_220K->2W_220K
5	AUG/05/98	2.60	PC#5528_Q16 A,B REPLACE WITH TIP50#6891
6	D	V	N
7	D	V	N
8	D	V	N
9	D	V	N
10 D		V	N

	C5	R13			R14
16v	2u2 10K:1%				10K:1%
	R44				R45
10K:1%			2		10K:1%
					1
			3
				U3
					1/2
				33078
	R43			R38
82K5:1%			82K5:1%
	RV1				RV2
	100K				100K	+78
			ISOTHERMAL
					R37
					15R
					FP
GND			Q11
		BF872
					330R
GND					R36
	RV3				RV4
	100K				100K
	R41			R39
82K5:1%			82K5:1%
				33078
					1/2
			5	U3	7
			6
	R40			R42
10K:1%				10K:1%

R55A

21K5:1%

+18

	R38A
	7K5
	R39A
	7K5
C18A	D13A
16v			R56A
22u
	D14A
			17K8:1%
R40A		C20A	R43A
220R	16v	22n	3K
	D15A
C19A	D16A ROG
16v
22u
	R41A
	7K5
	R42A
	7K5

-18

R49A	R57A	R67A	Q20A
470R	150R	33K
C21A
22u	10v	R68A
R48A
1K5		68K
		Q14A
	C22A	BC560
R47A
	300V
1K5D17A 10p		R58A
		39R
R46A	Q15A
4K7
Q12A		MJE5730
MPSA42
R44A		D19A
1K		D22A
R45A		D20A
1K		D23A
Q13A		D21A
MPSA92
		TIP50
R50A	Q16A
4K7
D18A
	C23A	R63A
R51A		39R
	300V
1K5	10p	Q17A
		BC550	Q21A
R52A		R69A
1K5	C24A	33K
10v
	22u
R53A	R64A	R70A
470R
	150R	68K

NJM431 2V5

220K

R60A

NJM431 2V5

+145

C26A	R59A
10v	10R
4u7	FP

C27A 160V

10u

	ROG
	Q18A
	MJE340
2W	47R
	R61A
	5
R62A
	47R
	Q19A
	MJE350
	ROG
	C28A
	160V
	10u
C25A	R65A
	10R
10v
4u7	FP
	-145

R55B

+145

21K5:1%

R57B

R67B

Q20B

2V5

R49B

150R

33K

THIS BOARD MAY

470R

FP

C26B

R59B

BE OPERATED

NJM431

C21B

10v

10R

WITHOUT THE POWER

22u

10v

R68B

4u7

FP

AMP MODULES.

SEE

R48B

NOTE ABOUT TEST

+18

1K5

68K

FIXTURE PLUG.

BC560 Q14B

C27B

TO AMP B (RIGHT)

R47B

C22B

160V

1

300V

10u

RDRV

MW2

R38B

1K5

10p

R58B

D17B

2

ROG

7K5

39R

LOG

MW2

R46B

Q15B

3

RCLIM

R39B

4K7

MW2

MJE5730

4

RFB

7K5

Q18B

MW2

Q12B

MJE340

ROG

5

C18B

D13B

MPSA42

1.6 WATTS

MW2

RTSENSE

16v

R56B

D19B

220K

0.5W

47R

R44B

22u

D14B

17K8:1%

R60B

1K

D22B

R61B

R40B

C20B

R43B

16v

220R

22n

3K

R45B

D20B

6

TO AMP A (LEFT)

D15B

R62B

1

C19B

1K

LDRV

D16B

LOG

D23B

47R

MW1

16v

Q13B

2

LOG

22u

D21B

MW1

MPSA92

Q19B

3

R41B

TIP50

MJE350

MW1

LCLIM

7K5

R50B

Q16B

LOG

4

LFB

4K7

LOG

MW1

R42B

D18B

5

LTSENSE

C23B

R63B

MW1

7K5

R51B

39R

300V

Q17B

C28B

1K5

10p

BC550

160V

-18

10u

BDX53C

BF872

R52B

R69B

Q21B

NJM431 2V5

C29B

BDX54C

1K5

C29A

R65B

16v

C24B

33K

16v

10v

C25B

10R

330u

330u

22u

10v

FP

R53B

R64B

4u7

R66B

R66A

470R

150R

R70B

10R

B C E

BCE

10R

FP

68K

FP

FP

-145

MJE5730

6

11

R125

RELAY

MJE340MJE2361T

270R

R1

R2

MJE350

R22		R25			47K
5K36:1%		17K8:1%
	6
	5	7
		U1				CLP-
		1/2
		33078	D8		BC550
	R24				Q9
	1K				R28
					47K
			Q8
	C12		BC550		R29	HDRM-
	47p				3K
+78
R102	R104
0.5W			Q30
	1K
15K				R106
20v					10R	C48
500mW			BDX53C
ZD7					FP	25v
						100u
20v						C49
						25v
500mW		GND
				R107		100u
ZD8
R103	R105		Q31		10R
0.5W					FP
	1K		BDX54C
15K
-78

	C14	R33	R34
16v	2u2 10K:1%		10K:1%		C17	47u
2
					D12	10v
		6		D11
		5		7
			U2			4
			1/2
			33078
		R32
			R35		ROG
	249R:1%		249R:1%
				+18
	D9
			R31
+18	D10		220K
		Q10
	C13	A63	C31
	100n		27p	R30	LD2	GND
				820R
					RED

SERVICE CAUTION: VOLTAGES GREATER THAN

-18300 VOLTS ARE PRESENT ON THIS CIRCUIT BOARD.

THE MAXIMUM CURRENT AVAILABLE FROM

RDRV (LDRV) IS LIMITED TO 75 mA.

	HIGH CURRENT INTERFACE:			CONTROL		+18
	FROM M1013 BRIDGE RECT PCB,
	TO AMP A AND AMP B.			INTERFACE:
+145	EY14	EY15	+145	+18	1
		EY16			MW3
	EY11	EY12			2
+78			+78	LTSENSE MW3
		EY13
	EY7	EY8 EY9			3
GND			GND	RTSENSE MW3
		EY10
-78	EY4	EY5	-78	RMS	4
		EY6			MW3
-145	EY1	EY2	-145	KILL	5
		EY3			MW3

TO TEST THIS PCB WITHOUT POWER OUTPUT MODULES CONNECTED,

THE FOLLOWING PATCH PLUGS FOR MW1 AND MW2 SHOULD BE ASSEMBLED. (LOG AND ROG MUST BE GROUNDED TO THE HIGH CURRENT INTERFACE GROUND)

1:	LDRV	THE OPERATION OF THE		FAN
		AND	THE HI-TEMP SHUT	DOWN
2:	LOG	MAY	BE VERIFIED BY GROUNDING
		RTSENSE OR LTSENSE.

3:LCLIM

4:	LFB	GND AT
		HIGH CURRENT

5: LTSENSE	INTERFACE
	(REQUIRED FOR OPERATION)

FP=FLAMEPROOF

GND		4			13	GND	+145
		C1S1	S2C2
	D46				RELAY 48V VERSION			D50	D51
		8	1 16 9
						ACTGND			ECB	B C E
	LD5		+78
PROTECT					TO ACTIVITY LEDS.		R131	R132
	RED
										NJM431L
							1K5	1K5
	LD6								1 REF
POWER			10V				Q38
	GREEN	1N4004							2 ANODE
			500mW			MPSA92			3 CATHODE
		D48
0.5W	R124		ZD17							123
		9			C52	R130
	1K5
					4u7	63v	10K
			R126						BC550C	MPSA13
			10K
-18		Q36							BC560C	MPSA63
		2N5551
						R128	1N4004
				Q37
							D49
			BC550			220K
									CBE	EBC
			R127			R129
			4K7			1M			MPSA42
										2N5551
									MPSA92
OVERHEAT SHUTDOWN		GND
									EBC	EBC
NOTE: ALL UNMARKED DIODES ARE 1N4148					CAPACITOR VOLTAGES SHOWN ARE MINIMUM REQUIRED.
		DATE:AUG/05/98	MODELS:	AP-3400					SCH ISSUE: 2.60
				.
YORKVILLE		NAME:M1011A26	PCB#:		M1011A				TITLE: SCH_NAME