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MANUAL SERVICE Twin Towers

+320V R4 2k7 C3 100/350V + C4 0.1 C5 R6 80K 220/25V 1/2 E83CC 7 J2 INPUT +IN 1/2E83CC PCB Volume Relayes o potenziometro +OUT C6 2 6.8/100V R12 1M R17 3k65 3 + C8 C9 0.1 R18 80K 1 /250V R13 270k 1 1 1 V1A 4 8 5 C7 2 D3 15V D4 15V 6 V1B 9 1 2 + 24V D2 R5 270k R7 100k 10K

38 V

+12.6V

R9

10K Q1 IRF240 R14 0.22

R10

10K Q2 IRF240 R15 0.22

R11 Q3 IRF240 R16 0.22

1 R60 1K 2 1

220/25

33000/40v C10 + L1 C11 C12 INDUCTOR IRON 6.8/100V OUTPUT

+7.5V

D40 LED

2

0.1

2

PATHOS ACOUSTICS
Title Size A4 Date: Twin Towers Sezione Audio L/R Document Number 1 Sunday, February 07, 1999 Sheet 2 of 4 Rev

Q7 BUT 12 Transformer TF1 F1 FUSE 1 2 C26 2 SW SPST 3 S4 1 4 1 D10 4x 1N4007 + 2 C24 2 0.1/400 1 1 C22 220/400 2 1 R32 470K 2 1 1N4007 1 2 1 2 C29 1 0.01 5 - 7 C34 220/25 2 2 220K 1 2 R36 1 6 U9 3 LM555 4 8 2 D14 1N4148 4 + 2 D13 4A 200V 3 C30 0.1 2 1 C31 4700/25 1 2 1 IN U8 C 2 1 C32 0.1 D15 1N4007 2 1 4700/25 1 2 C33 2 D39 7.5 V 1 OUT 3 1 R35 1K 1 D9 9.1 V 2 Q8 MPSA92 R31 1 2 D11 320 V 2K7 R30 1K8 C25 2 0.1/400 1 C27 22/350 2 1 1 C23 220/400 2

320 V Vacuum Tube Power supply

1 AC IN VCC_CIRCLE 0.1/250 V

C28 2 1 1/50 2 R34 1 220K 2

R33 1 50K

D12 2

LM7812 +12.6 V Vacuum Tube Heater

+7.5V

220/25 2 C40 +12.6V dal piedino 3 del 555 massa

K1 2 1 4 C35 1 2 0.1/250 V F2 FUSE 2 1 T1 12V 1S 3

1

2 1

5 D17 25A 200V + 2

4 400va

8 4 -

1

+38 V

1 C36 33000/40 2

2 C39 0.1 1

3

1 C37 33000/40 2

2 C38 0.1 1

PATHOS ACOUSTICS Title Size A3 Date: Twin Towers power supplier Document Number Monday, January 17, 2000 Sheet 4 of 4 Rev

+5 V

1

RA1 COM 4K7 +5 V

1

RA2 COM 4K7

RRRRRRRRR 1 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 1 0 U2 1 2 3 4 5 6 7 8 9 10 11 12 C13 10/16v 2 87C750

+5 V

RRRRRRRRR 1 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 1 0

+5 V 1

24 23 22 21 20 19 18 17 16 15 14 13

U3 9 8 7 6 5 4 3 2 1 +12 Tr Tr Tr Tr Tr Tr Tr NC 10 GND 11 Tr 12 Tr 13 Tr 14 Tr 15 Tr 16 Tr 17 Tr 18 NC 14 13 12 11 10 9 8

J3 R19 1 2 3 4 5 6 7 R-PACK7 +5 V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin COM14 Ground +5 V Pin 10 Pin 9 Pin 7 Pin 5 Pin 4 Pin 2 Pin 1 Katode Dsplay Units Katode Display Decade Volume UP from remote control Volume down from remote control

UDN2981

Units Decade

J4 +12 V Relay Mute Relay Volume 1 Relay Volume 2 Relay Volume 3 Relay Volume 4 Relay Volume 5 Relay Volume 6 8 7 6 5 4 3 2 1 Relay LEFT/RIGHT 9 10 11 12 13 14 15 16

U4 8 com gnd 7 OUT In 6 OUT In 5 OUT In 4 OUT In 3 OUT In 2 OUT In 1 OUT In ULN2003A

Y2 1 R20 8k2 2 2 D5 1n4148 1 1 2 1 C15 22pf 2 1 C16 220/25V 2 U5 +5 V 1 LM7805 IN C 2

1 12 Mhz C14 22pf 2

OUT

3 1 C17 1000/25V 2

Ground +5 V R21 1 U6 Units Decade 9 10 11 12 13 14 15 16 8 com gnd 7 OUT In 6 OUT In 5 OUT In 4 OUT In 3 OUT In 2 OUT In 1 OUT In ULN2003A RA3 COM 4K7 +5 V RA4 COM 4K7 1 10k Q4 BD 140 R22 1 1k 1 R23 10k D6 1 1n4148 Q6 BC337 D7 1 C19 1 2 10/16V +5 V 1 R27 8K2 2 2 D8 1N4148 1 1 1n4148 Y3 2 1 C21 22pf 2 1 2 3 4 5 6 7 2 1 tcst2103 1 R28 2 1K +5 V R29 1 1K 2 Title Size A3 Date: PATHOS ACOUSTICS SEZIONE VOLUME scheda microcontrollore Document Number {Doc} Monday, December 06, 1999 Sheet 3 of 4 Rev 1 2 tcst2103 1 1 1 1 1 9 8 4 3 2 1 0 4093 J5 ISO3 4 5 5 ISO4 4 2 2 2 1 2K2 R25 1 10k 2 2 C18 1 10/16V 1 R26 2K2 BC 327 R24 2 Q5 2 2 2 +12 V al piedino 3 del 555

To Power Supplier

RRRRRRRRR 1 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 1 0

+5 V U7 1 2 3 4 5 6 7 8 9 10 11 12 87C750 24 23 22 21 20 19 18 17 16 15 14 13

1

RRRRRRRRR 1 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 1 0

1 12 Mhz C20 22pf 2

+5 V U4 J1 1 2 3 4 5 6 7 4093 14 13 12 11 10 9 8 U1 1 R1 4.7k 2 1 2 3 4 5 6 7 8 9 10 11 12 87C750 1 R3 R Y1 ISO1 tcst2103 2 2 R 1 R3 R 1 R3 +12 V R 1 R3 2 2 2 1 +5 V 2 C1 CAP NP 2 1 C1 CAP NP 8 7 6 5 4 3 2 1 U4 MI I I I I I + CS 3310 u n n n n n n t 5 e V i go + - o g i n nu 5 5u n n V V d dt 9 1 1 t 1 1 1 1 1 0 1 2 3 4 5 6 R L R L R2 1.5k 2 3 2 C1 CAP NP 1 1.5k C? CAP U5 LM7805 OUT C 2 R2 1 2 IN 1 Q? PNP 1 2 +5 V 1 C1 CAP NP +5 V 1 R3 R 1 2 D1 DIODE 1 2 12 Mhz 1 C1 CAP NP 2 2 1 C2 CAP NP +5 V 2 +5 V U2 1 2 3 4 5 6 7 8 9 NC Tr Tr Tr Tr Tr Tr Tr +12 NC Tr Tr Tr Tr Tr Tr Tr GND 18 17 16 15 14 13 12 11 10 14 13 12 11 10 9 8 R-PACK7 R1 1 2 3 4 5 6 7 1 C2 CAP NP 2 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 In In In In In In In gnd OUT OUT OUT OUT OUT OUT OUT com 16 15 14 13 12 11 10 9

ULN2003A

+5 V 1 C1 CAP NP 2

5

1 ISO2 tcst2103 2

1 R2 1.5k 2

5

1

4

4

UDN2981

Volume down from remote control Volume UP from remote control Katode Display Decade Katode Dsplay Units Pin 1 Pin 2 Pin 4 Pin 5 Pin 7 Pin 9 Pin 10 +5 V Ground

R2 1.5k

1

D? 1 2 3 12,7 Piedino 3 NE555 massa

2

Audio IN R Audio IN L GND audio in/out Audio OUT L Audio OUT R

5 4 3 2 1

CAP NP C1

1

CAP C? 3 2 - -

U9 4 1 5 8 LM555 6 7

DIODE

2 1 C1 CAP NP 2 CAP C1 1 2 CAP NP 1 2 1.5k C1 CAP NP 1 R2

C?

2

C? CAP

Title Size A3 Date:

PATHOS
VOLUME CRISTAL TWIN TOWERS Document Number Thursday, October 14, 1999 Sheet 1 of 4 Rev

J12 8 7 6 5 4 3 2 1 1 D41 1N 4148 2 OUT R K3 RELAY DPDT K4 RELAY DPDT K5 RELAY DPDT K6 RELAY DPDT K7 RELAY DPDT K8 RELAY DPDT 2 R66 20k 1 +12 V Relay Mute Relay Volume 1 Relay Volume 2 Relay Volume 3 Relay Volume 4 Relay Volume 5 Relay Volume 6

Relay LEFT/RIGHT

IN R

2 R67 19k 1 2

2 R68 19k 1 R79 1k

2 R69 14k5 1 2

2 R70 14k5 1 R80 6k4

2 R71 8k6 1 2

2 R72 8k6 1 R81 18k9

2 R73 4k75 1 2

2 R74 4k75 1 R82 41k9

2 R75 2k2 1 2

2 R76 2k2 1 R83 86k

2 R77 1k2 1 2

2 R78 1k2 1 R84 173k K9

1

1

1

1

1

1

RELAY DPDT

1 D42 1N 4148 2

1 D43 1N 4148 2

1 D44 1N 4148 2

1 D45 1N 4148 2

1 D46 1N 4148 2

1 D47 1N 4148 2

IN L OUT L K10 RELAY DPDT K11 RELAY DPDT K12 RELAY DPDT K13 RELAY DPDT K14 RELAY DPDT K15 RELAY DPDT 2 R85 20k 1

2 R86 19k 1 2

2 R87 19k 1 R98 1k

2 R88 14k5 1 2

2 R89 14k5 1 R99 6k4

2 R90 8k6 1 2

2 R91 8k6 1 R100 18k9

2 R92 4k75 1 2

2 R93 4k75 1 R101 41k9

2 R94 2k2 1 2

2 R95 2k2 1 R102 86k

2 R96 1k2 1 2

2 R97 1k2 1 R103 173k

1

1

1

1

1

1

PATHOS ACOUSTICS Title Size A3 Date: sezione rel่ Document Number {Doc} Sunday, July 18, 1999 Sheet 1 of 1 Rev

MANUAL SERVICE Twin Towers Modified for Sovteck

+320V R4 2k7 C3 100/350V + C4 0.1 C5 R6 220K 220/25V 1/2 E83CC 7 J2 INPUT +IN 1/2E83CC PCB Volume Relayes o potenziometro +OUT C6 2 6.8/100V R12 1K R17 3k65 3 + C8 C9 0.1 R18 80K 1 /250V R13 270k 1 1 1 V1A 4 8 5 C7 2 D3 15V D4 15V 6 V1B 9 1 2 + 24V D2 R5 270k R7 100k 10K

38 V

+12.6V

R9

10K Q1 IRF240 R14 0.22

R10

10K Q2 IRF240 R15 0.22

R11 Q3 IRF240 R16 0.22

1 R60 1K 2 1 D40 LED

220/25

33000/40v C10 + L1 C11 C12 INDUCTOR IRON 6.8/100V OUTPUT

2

0.1

2

PATHOS ACOUSTICS
Title Size A4 Date: Twin Towers Sezione Audio L/R Document Number 1 Friday, August 24, 2001 Sheet 2 of 4 Rev

Q7 BUT 12 Transformer TF1 F1 FUSE 2 1 4 1 D10 4x 1N4007 + 2 C24 2 0.1/400 1 capacitor attact under pcb board 2 1 C28 2 1 1/50 2 R34 1 220K 2 1 2 C29 1 0.01 5 - 7 C34 220/25 2 2 220K 1 2 R36 1 6 U9 3 LM555 4 8 2 0.1 2 R33 1 50K 2 1N4007 1 D14 1N4148 4 + 2 D13 4A 200V 3 C30 0.1 2 1 C31 4700/25 1 2 1 IN U8 C 2 1 C32 0.1 D15 1N4007 2 1 4700/25 1 2 C33 OUT 3 D12 1 1 3 1 C22 220/400 2 1 SW SPST R32 470K 2 D9 9.1 V 2 Q8 MPSA92 R31 1 2 D11 290 V 2K7 R30 1K8 C25 2 0.1/400 1 C27 22/350 2 1 1 C23 220/400 2

290 V Vacuum Tube Power supply

1 AC IN VCC_CIRCLE 0.1/250 V 2 C26 S4

1

LM7812 +12.6 V Vacuum Tube Heater

+12.6V dal piedino 3 del 555 massa K1 2 1 4 C35 1 2 0.1/250 V 12V 1S 3

1

F2 FUSE 2

2 1

1 T1

5 D17 25A 200V + 2

4 400va

8 4 -

1

+38 V

1 C36 33000/40 2

2 C39 0.1 1

3

1 C37 33000/40 2

2 C38 0.1 1

PATHOS ACOUSTICS Title Size A3 Date: Twin Towers power supplier Document Number Friday, August 24, 2001 Sheet 4 of 4 Rev