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E57B6BLP

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(SHUNT REGULATOR)

REG

NOTE : 

The voltage for parts in hot circuit is measured using
hot GND as a common terminal.

AC1001

AC CORD

F1001

LINE

FILTER

L1001

D1001, D1002
D1004, D1005

Q1003

Q1001

2

4

7

3

4

ERROR
VOLTAGE DET

T1001

11

12

13

15

14

16

17

18

SWITCHING

SWITCHING

CONTROL

1

2

6

BRIDGE

RECTIFIER

D1003

RECTIFIER

D1030

RECTIFIER

D1016

RECTIFIER

Q1016

Q1006

Q1005

Q1011

Q1012

Q1010

Q1015

Q1002

CN1001

   

Q1004

   

   

   

-FL

EV+5V

F2

F1

P-ON+12V

EV+3.3V

P-ON+5V
P-ON+3.3V

FROM/TO
CN401

1,2,3

EV+1.5V

4,5

EV+3.3V

14,15

EV+9V

13

P-ON+5V

17

P-ON+3.3V

 +1.5V

REG.

Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F1001) is blown, check to see that all components in the power supply 
circuit are not defective before you connect the AC plug to the AC power supply. 
Otherwise it may cause some components in the power supply circuit to fail.

Q1008

LATCH

D1006

SCHOTTKY
BARRIER

SCHOTTKY
BARRIER

D1008

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.

T1.6A L 250V

PWRCON

PWSW

FROM SYSTEM

CONTROL/SERVO

BLOCK DIAGRAM

Q1014

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SC-FN2

Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics often
pass unnoticed and the protection afforded by them
cannot necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc.
Replacement parts that have these special safety
characteristics are identified in this manual and its
supplements; electrical components having such
features are identified by the mark " 

!

 " in the schematic

diagram and the parts list. Before replacing any of these
components, read the parts list in this manual carefully.
The use of substitute replacement parts that do not
have the same safety characteristics as specified in the
parts list may create shock, fire, or other hazards.

(B)

(F)

±

10%

+30 - 80%

±

15%

+30 - 80%

20

°

C

20

°

C

20

°

C

20

°

C

-25~+85

°

C

-25~+85

°

C

-25~+85

°

C

-10~+70

°

C

(SR)

(Z)

Capacitors and transistors are represented by the
following symbols.

1. Do not use the part number shown on these draw-

ings for ordering. The correct part number is shown
in the parts list, and may be slightly different or
amended since these drawings were prepared.

2. All resistance values are indicated in ohms (K=10

3

,

M=10

6

).

3. Resistor wattages are 1/4W or 1/6W  unless other-

wise specified.

4. All capacitance values are indicated in 

µ

F

(P=10

-6

 

µ

F).

5. All voltages are DC voltages unless otherwise speci-

fied.

6. Electrical parts such as capacitors, connectors, di-

odes, IC's, transistors, resistors, switches, and fuses
are identified by four digits. The first two digits are
not shown for each component. In each block of the
diagram, there is a note such as shown below to
indicate these abbreviated two digits.

(Top View) (Bottom View)

(Bottom View)

Electrolytic Capacitor

+

Transistor or Digital Transistor

NPN Transistor

PNP Transistor

NPN Digital Transistor

PNP Digital
Transistor

(Top View)

(Top View)

E C B

E    C    B

Digital Transistor

CBA Symbols 

Schematic Diagram Symbols 

E C B

(Top View)

(Top View)

E C B

E C B

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SC-FN2

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.

Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.

If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defective
before you connect the AC plug to the AC power supply.  Otherwise it may cause some components in the power
supply circuit to fail.

(1) Do not use the part number shown on the drawings for ordering.  The correct part number is shown in the parts

list, and may be slightly different or amended since the drawings were prepared.

(2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed

with their part numbers in the parts list section of the service manual.

4. Wire Connectors

(1) Prefix symbol “CN” means “connector” (can disconnect and reconnect).

(2) Prefix symbol “CL” means “wire-solder holes of the PCB” (wire is soldered directly).

5. Voltage indications for PLAY modes on the schematics are as shown below:

2

3

1

 5.0

PLAY mode

5.0

Unit: Volts

Indicates that the voltage
is not consistent here.

6. How to read converged lines

1-D3

    Distinction 

Area

 Line 

Number

(1 to 3 digits)

 Examples:

  1. "1-D3" means that line number "1" goes to area "D3".
  2. "1-B1" means that line number "1" goes to area "B1".

 

3

2

1

A

B

C

D

1-B1

1-D3

AREA D3

AREA B1

7. Test Point Information

: Indicates a test point with a jumper wire across a hole in the PCB.

: Used to indicate a test point with a component lead on foil side.

: Used to indicate a test point with no test pin.

: Used to indicate a test point with a test pin.

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E57B6SCD2