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_VTOP

3

5

5

1

+

E C

EL2257C
13

7

+

E C

EL2257C
9

EL2257C
9

E

+

7

EL2257C
13

3
E C + -

1

14

-

8

U12:2
C -

2

6

6

D

D

D

G

G

G

D

G

S

S

S

B2_P

S

2

U11:1

-

8

U12:1

14

U11:2

B1_P

11

U11:3 EL2257C
4

B2_N

4

11

U12:3 EL2257C

B1_N

This connects to chassis gnd at the rear panel.

_SPK IX2 _BOP

1 2 1 2

IX1 _BGND

DR2 _SPK_GND

DR1

B3_P

B3_P

3

5

5

1

+

E C

EL2257C
13

7

+

E C

EL2257C
9

EL2257C
9

E C

+

7

3

EL2257C
13

E C

+

1

14

-

8

2

6

6

D

D

D

G

G

G

D

G

S

S

S

11

S

2

U14:1

-

U14:2

U13:2

-

8

U13:1

-

14

U14:3 EL2257C
4

_VBOT

IX3 IX4

DR3 DR4 PM_REF

QTY

ITEM NO.

PART NO.

DESCRIPTION

4

11

U13:3 EL2257C

VENDOR

DR1

DR3

DR2

DR4

IX1

IX3

IX2

_BGND

_VBOT

_VTOP

_VBOT

_VTOP

_BOP

_BGND

PM_REF

C129 22u-25V

_BOP

_BGND

14 13

U21:1

1 2 3

8 9 11 12

U21:2

7 6

22u-25V

C125

4

CA3054M96 U21:3
5

CA3054M96

CA3054M96

CW

W

CCW

DN_DRV _VBOT

UP_DRV

C126 22u-25V

HOT

B3_N

_BOP

IX4

I_MON DIFF_AMP_BIAS

Gain = 1/37.5

_V200 P_ISENSE

3

+ 1 5 + 7

_BOP MUTE

2

-

5V=187V

N_ISENSE

6

-

_N_STEP

-POLPositive = Clip
1 2
VP

_SPK_GND

3 5 + 7 2

+ 1 _BOP

Values shown preclip a fixed 5 volts below the rails up to 15 amps of output current. After that, preclip advances 120 mV per ampere output, for 12v preclip at 70 amps.
6 7 5 +

+

3
VN

6

-

+POL+
+ 10 12 14 15

-POL-

2

1

3

+

9

With values shown, the effective step switch time delay is 4us flat out to 50 KHz.

16

-

13

VP CLAMP_SIG

Closed loop gain =37.5 or 31.5 dB
VN

0.84 atten.
CLIP

_SPK

3

+ 1

2

-

VP PRE_LIM

-POL5 +

+15V_

8

Gain = 1.67

7 6

-POL11
+ 3 2 7 5

LOSS_OF_FEEDBACK

4

-

1

-15V_

6

-

4
CLIP_FEED

8

DN_DRV

REREF VP

VP

Limiter is shown in "fast clip-tracking"mode. To convert to a slow attack/release limiter, open the 3 places shown shorted with lines, and make the connection shown by the arrow line.
VN

VP

GAIN_RETARD

UP_DRV

VN

8

SHED_V

7

SHED_V

6

PWR_GND

5
+15V

PSENABLE_A

4

PSENABLE_A

STANDBY

1

I_SET

3

I_SET

MSP_VMON

2

MSP_VMON

2

PWR_GND

D_GND

3

PSENABLE_K

1

PSENABLE_K

MSP_IMON

4

MSP_IMON

MODE_FLAG

5

280 KHz LPF

CLIP_

6

SIG_GND

7

-POL-

2

1

3 8

+

+POL+
C88 47-10NP-10%

CH_IN_N

+POL+
CH_IN_P

9

+POL+

1

J6:1
POT_TOP

REREF

10

-POL-POL3

2

J6:2
REREF

POST_POT_N

11

J6:3
POST_POT_N

POST_POT_P

12

4

J6:4
POST_POT_P

PRE_LIM

13

5

J6:5
SIG_GND

+15V_

14

B1_P

STANDBY_LED

6

J6:6
STANDBY_LED

SMPS_V

15

SMPS_ON

7

J6:7
SIG_GND

-15V_

16

B1_N PRE_LIM

VP

8

J6:8
VP

C63 22u-25V

C68 22u-25V
REREF

VN

9

J6:9
VN

+15V

10

J6:10
+15V

PROTECT V_MON

11

J6:11
V_MON

LOSS_OF_FEEDBACK

CLIP

12

J6:12
PROTECT

13

J6:13
PWR_GND

CLIP_FEED

14

J6:14
CLIP_FEED

15

J6:15
CLIP

16

J6:16
PWR_GND

VP

Current gain: 22,460. 3.0 mA total set curent results in 68A peak output. Minumum at full cut-back is 250 uA or 5.6A output.

PROTECT

VP DIFF_AMP_BIAS

SMPS_ON

MUTE

STANDBY_LED

G

D

PSENABLE_A

I_SET _BOP

S

C117 22u-25V

Nominal I_SET = 3ma to 5ma. Amp is fully on at I_SET>1ma. Above 3ma fan is unaccellerated. From 3ma to 1ma speed rises. Below 1ma fan speed reduces back linearily to normal speed.

PSENABLE_K

VN

_BGND _V50

1 2

600ms delay to enable audio. 200ms delay to disable audio.

VN

_BOP

3

22u-25V

4

GAIN_RETARD

C55

7 +

6

FAN_N

5

Gain = 1/37.5
_SPK_GND

Fan idles at 10V up to 60C. From 60C to 80C fan ramps from 10V to 24V. At 85C fan V = 28V MAX. (Note that SMPS can also speed fan up.)

V_MON

+ 7 -

5

2

1

VP

6

3

-POLMSP_VMON B3_N _N_STEP

SNAPPER PTC

+ 7 6 1 + 5 + 3 2

5

P_ISENSE

6

5V = 100 deg C.

7

N_ISENSE

+ 1 -

3
VN

Total Gain = 16.85dB

2

HOT=250uA @ 80 deg C.
VP I_MON

HOT MSP_IMON

U1 2.5V-1%

The "HOT" threshold is 80C Cutback begins at 100C and full shutdown happens at 110C. (+/- 3 degrees)

Clamps caps to 48-54V
_V200

_V150

G 5 + 7 6 5
_V150

_N_STEP

+ 7

NOTE: This opamp must not clamp its input terminals together. TL072 or EQIV!!!
5 + 7 6
CLAMP_SIG VN

6

-

-

3

VN

+ 1

2

-

V_MON

D

S

G

G

S

D

S

D

5
_V100

4
_V100

LOSS_OF_FEEDBACK

5

3 + 7 3 + 1 2 2 1

6

-

_N_STEP

VN VN VN

PROTECT

G

_V50 _V50

3

+ 1 5 + 7 6 -

2

-

_N_STEP

VN

VN

S
B4_P

+
SHED_V

3

22u-25V

22u-25V

-

3 volts here signifies 50 amps output, so load is likely 2 ohms.
B4_N

C19

2

C49 22u-25V

1

C48

D

_VTOP

VN _VBOT

I_MON

2

8

8

8

8

1

VN

VN

22u-25V

3

+

8

-

22u-25V

C33 22u-25V

VP

C30

_N_STEP

C31

4

4

4

4

4

B1_P

+15V

C62 22u-25V

VP

1 2

C107 22u-25V

8

C111 22u-25V

7

VN

B1_N

B2_P

12

11

B2_N

B3_P

10

9

B3_N

B4_P

14

13

B4_N

VP

8

8

8

8

8

8

C6

1 2

22u-25V

6

1

2

3

DRAIN SOURCE

4

22u-25V

S

2

D

4

4

4

4

4

4

CONTROL 1 2

C

VN

C7

7

6

4

8

A_POT_TOP A_REREF

+POL+

J501:1 10K-DET-THRU-PCB J501:2 J501:3

A_POST_POT_N
J501:4

R509

-POL-

+POL+

U501:2 TL072

A_POST_POT_P
J501:5

SIG_GND
J501:6

A_STANDBY_LED
J501:7 TL072 U501:1 J501:8

SIG_GND A_VP
J501:9

A_VN
J501:10

A_+15V
J501:11

A_V_MON
J501:12

A_PROTECT
J501:13

PWR_GND
J501:14

A_CLIP_FEED
J501:15

A_CLIP
J501:16

PWR_GND

B_POT_TOP B_REREF

+POL+

J601:1 10K-DET-THRU-PCB J601:2 J601:3

B_POST_POT_N
J601:4

R609

-POL-

+POL+

U601:2 TL072

B_POST_POT_P
J601:5

SIG_GND
J601:6

B_STANDBY_LED
J601:7 TL072 U601:1 J601:8

SIG_GND B_VP
J601:9

B_VN
J601:10

B_+15V
J601:11

B_V_MON
J601:12

B_PROTECT
J601:13

PWR_GND
J601:14

B_CLIP_FEED
J601:15

B_CLIP
J601:16

PWR_GND

TL072 220p C300 U300:1

TL072 220p C302 U300:2 E2 E3

TL072 220p C400 U400:2

TL072 220p C402 U400:1

SW1:4

SW1:1

SW1:3

SW1:2

C1 220p

QTY

ITEM NO.

PART NO.

DESCRIPTION

VENDOR

V+17.2

V+17.2

PRI_HI V+17.2 HOT PRI_LO V+17.2 PRI_LO PRICAPCT SWITCHEDHV OUTA

OUTB

SYNC

RELAY/AMP_DRIVE

NEUTRAL PRI_LO PRI_LO V+17.2 PRI_LO

PRI_LO

SOFTSTART

PRI_LO PRI_LO

SWITCH_INHIBIT_DRIVE

PRI_LO PRI_LO PRI_LO

SWITCH_INHIBIT

PRI_LO

PRI_LO PRI_LO

V+17.2

PRI_LO

XFM_NTC+

PFC_NTC+

COR_NTC+

200V

PRI_LO SHUTDOWN_NOT

PRI_LO

150V

100V XFM_NTCPFC_NTCCOR_NTCRELAY/AMP_DRIVE V+17.2 V+17.2 50V

PRI_LO

HVCOMMON

PRI_LO

PRI_LO PRI_LO

L1

V+17.2_FLOATING PUMP_POS 2 Watts Max Dis. PRI_HI PRI_HI

V+17.2_FLOATING

AC_LINE

HOT

D15 >> D18 PRICAPCT PRI_LO 2 Watts Max Dis. PUMP_NEG PRI_LO

NEUTRAL

AC_LINE_LO PUMP_NEG PUMP_NEG PUMP_NEG

PRI_HI PRI_HI V+5 Hard Limit at 395V-400V V+5 26Kohm @ 60Hz V+5 AC_LINE

RELAY/AMP_DRIVE
3 + 1

+ 7

cut board out, under body

2

-

375v to 385V Reg Range 2.5v

6

-

PRI_LO

Scale Factor 1V = 150V

5

V+5

12V (Unused)

PRI_LO PRI_LO V+5

PRI_LO

PRICAPCT 15v

V+5 V+5

pri

PUMP_NEG

5v

V+5

PRI_LO 15v V+17.2

Stop Threshold PRI_LO PRI_LO PRI_LO PRI_LO

of

_VTOP B1_P

B2_P

D

D

D

14 13

CA3054M96 U26:1
1 2 3 4 5

G S 7 6 8 9 11 12

G S S

G 8 9 11 12 7 6 S

D G

CA3054M96 U24:1
1 2 3 4

14 13

CA3054M96 U26:3

U24:3 CA3054M96

CA3054M96 U26:2

CA3054M96 U24:2

5

B2_N

B1_N

1

IX2

_SPK_GND

This connects to chassis gnd at rear panel.
1 2
_SPK

IX1

_BGND DR1

DR2

_BOP

B3_P

2

B3_P

D

D

D

14 13

CA3054M96 U28:1
1 2 3 4 5

G S 7 6 8 9 11 12

G S S

G 8 9 11 12 7 6 S

D

G

CA3054M96 U25:1
1 2 3 4

14 13

CA3054M96 U28:3

_VBOT

IX3

U25:3 CA3054M96

CA3054M96 U28:2

CA3054M96 U25:2

5

IX4

DR3

DR4

PM_REF

Supplies: B1 = 30v at 100mA B2 = 20v at 50mA B3 = 40v at 60mA B4 = 27v at 50mA

Puppetmaster voltages: 18.6 volts of zener in series with 56 ohms. Stackup: 11 2.4 1.2 18.6 = 33.2 volts of zener drop 40 volts available.

QTY

ITEM NO.

PART NO.

DESCRIPTION

VENDOR

DR1

DR3

DR2

DR4

IX1

IX3

IX2

_BGND

_VBOT

_VBOT

_VTOP

_VTOP

_BOP

_BGND

PM_REF

C129 22u-25V

_BOP

_BGND

14 13

U21:1

1 2 3

8 9 11 12

U21:2

7 6

22u-25V

C125

4

CA3054M96 U21:3
5

CA3054M96

CA3054M96

CW

W

CCW

DN_DRV _VBOT

UP_DRV

C126 22u-25V

HOT

B3_N

_BOP

IX4

I_MON

DIFF_AMP_BIAS

Gain = 1/37.5

650mV pk excursion

_V200 P_ISENSE MUTE

3

+ 1 5 + 7

_BOP

2

-

5V=187V

N_ISENSE

6

-

_N_STEP

-POLVP

_SPK_GND

Positive = Clip
1 2 3 5 + 3
VN

+ 1
_BOP

+ 7 2 -

Values shown preclip a fixed 5 volts below the rails up to 15 amps of output current. After that, preclip advances 120 mV per ampere output, for 12v preclip at 70 amps.
6 7 5 +

6

-

+POL+

-POL-

2

1 10 12 16

+

14 15

3

+

-

13

With values shown, the effective step switch time delay is 4us flat out to 50 KHz.
CLAMP_SIG

9

VP

0.84 atten. 5.95Vpk clips amp.
CLIP

Closed loop gain =37.5 or 31.5 dB 5.0 Vp=187.5 Vp
VN

_SPK

3

+ 1

2

-

VP PRE_LIM

-POL5 +

-POL+15V_

10 Vpk clips the amp with NO LOAD.

8

Gain = 1.67

7 6 4 -

-POL11 + 3 2 1 6 4
CLIP_FEED

LOSS_OF_FEEDBACK

7
-15V_

5

8

VN

REREF VP

VP

DN_DRV

Limiter is shown in "fast clip-tracking"mode. To convert to a slow attack/release limiter, open the 3 places shown shorted with lines, and make the connection shown by the arrow line.
VN

VP

GAIN_RETARD

UP_DRV

8

SHED_V

7

SHED_V

6

PWR_GND

5
+15V

PSENABLE_A

4

PSENABLE_A

STANDBY

1

I_SET

3

I_SET

MSP_VMON

2

MSP_VMON

2

PWR_GND

D_GND

3

PSENABLE_K

1

PSENABLE_K

MSP_IMON

4

MSP_IMON

MODE_FLAG

5

280 KHz LPF

CLIP_

6

SIG_GND

7

-POL-

2

1

3
CH_IN_N

+

+POL+
C88 47-10NP-10%

8

+POL+
9

CH_IN_P

+POL+

1

J6:1
POT_TOP

REREF

10

-POL-POL3

2

J6:2
REREF

POST_POT_N

11

J6:3
POST_POT_N

POST_POT_P

12

4

J6:4
POST_POT_P

PRE_LIM

13

5

J6:5
SIG_GND

+15V_

14

B1_P

STANDBY_LED

6

J6:6
STANDBY_LED

SMPS_V

15

SMPS_ON

7

J6:7
SIG_GND

-15V_

16

B1_N PRE_LIM

VP

8

J6:8

VP

C63 22u-25V

C68 22u-25V
REREF

VN

9

J6:9
VN

+15V

10

J6:10
+15V

PROTECT V_MON

11

J6:11
V_MON

LOSS_OF_FEEDBACK

CLIP

12

J6:12
PROTECT

13

J6:13
PWR_GND

CLIP_FEED

14

J6:14

CLIP_FEED

15

J6:15
CLIP

16

J6:16
PWR_GND

VP

Current gain: 22,460. 3.6 mA total set curent results in 81A peak output. Minumum at full cut-back is 250 uA or 5.6A output.

PROTECT

VP DIFF_AMP_BIAS

SMPS_ON

MUTE

STANDBY_LED

G
I_SET

D

PSENABLE_A

S

_BOP

C117 22u-25V

Nominal I_SET = 3ma to 5ma. Amp is fully on at I_SET>1ma. Above 3ma fan is unaccellerated. From 3ma to 1ma speed rises. Below 1ma fan speed reduces back linearily to normal speed.

PSENABLE_K

VN

_BGND _V50

1 2

600ms delay to enable audio. 200ms delay to disable audio.

VN

_BOP

3

22u-25V

4
FAN_N

GAIN_RETARD

C55

7

6

186V = 5V

+

5

Gain = 1/37.5
_SPK_GND

Fan idles at 10V up to 60C. From 60C to 80C fan ramps from 10V to 24V. At 85C fan V = 28V MAX. (Note that SMPS can also speed fan up.)

V_MON

+ 7 -

5

2 3

1

VP

6

-POL-

MSP_VMON

B3_N

_N_STEP

SNAPPER PTC

+ 7 -

5

P_ISENSE

6

5V = 100 deg C.

7 + + 3
VN

6 1 5

-

2

Total Gain = 16.85dB

+

3

N_ISENSE

1

HOT=250uA @ 80 deg C.
VP

-

2

70A = 5V >5V = Current Limiting.

I_MON

HOT MSP_IMON

U1 2.5V-1%

The "HOT" threshold is 80C Cutback begins at 100C and full shutdown happens at 110C. (+/- 3 degrees)

Clamps caps to 48-54V
_V200

_V150

G 5 + 7 6 5
_V150

_N_STEP

+ 7

NOTE: This opamp must not clamp its input terminals together. TL072 or EQIV!!!
5 + 7 6
CLAMP_SIG VN

6

-

-

3

VN

+ 1

2

-

V_MON

D

S D G G S
_V100 _V100

LOSS_OF_FEEDBACK

5

+ 7 3 + 1 2 -

6

-

_N_STEP

VN VN

VN

PROTECT

G S
_V50 _V50

3

+ 1 5 + 7 6 -

2

-

_N_STEP

VN

VN

D
B4_P

+
SHED_V

3

22u-25V

-

3 volts here signifies 50 amps output, so load is likely 2 ohms.
B4_N

C19

C48

2

22u-25V

C49 22u-25V

1

S

D

_VTOP

VN _VBOT

I_MON

2

8

8

8

8

1

VN

VN

22u-25V

3

+

8

-

22u-25V

C33 22u-25V

VP

C30

_N_STEP

C31

4

4

4

4

4

B1_P +15V

C62 22u-25V

VP

1 2

C107 22u-25V

8

C111 22u-25V

7

VN

B1_N

B2_P

12

11

B2_N

B3_P

10

9

B3_N

B4_P

14

13

B4_N

VP

8

8

8

8

8

8

C6

1 2

22u-25V

6

1

DRAIN SOURCE CONTROL 1 2

4

22u-25V

S 4 4 4 4 4 4 C

2

D

VN

C7

4

8