SANYO SY001, SM5810169-00 Service Manual

SCHEMATIC DIAGRAM (CD)

This is a basic schematic diagram.

PRODUCT SAFETY NOTICE

Each precaution in this manual should be followed
during servicing. Components identified with the IEC
symbol
designated components in which safety can be of
special significance. When replacing a component
identified by
designated, or parts with the same ratings of
resistance, wattage or voltage that are designated
in the parts list in this manual. Leakage-current or
resistance measurements must be made to
determine that exposed parts are acceptably
insulated from the supply circuit before returning the
product to the customer.

in the parts list and the schematic diagram

!!

!

!!

!

, use only the replacement parts

- 43 -- 42 -

WIRING DIAGRAM (CD)

CN160

KEY P.W.B

CN161

CN162

LED P.W.B OPEN P.W.B

CN163

DIGITAL OUT P.W.B

CN165

CN198

CD P.W.B

CN164

CN190

CN114

MM

CN115

CN111

F+ T-

T+

CN113

CD MECHANISM

F-

MM

MOTOR

DRAWER

MOTOR

CARRIAGE

CD LOARDING MECHA.

GND

HOME SW

EXTRA SW

D2 SW

D1 SW

REV SW

FWD SW

OP/CL SW

PICK UP

CD BASE MECHA.

SLED

MOTOR

LIMIT SW

- 45 -- 44 -

MOTOR

SPINDLE

TAPE DECK SECTION

TAPE DECK ADJUSTMENT

1. Azimuth Adjustment

• Be sure to clean the heads before attempting to make any adjustment.

• Be sure both channels (1 and 2) are the same level. (Using a dual-channel oscilloscope)

• Be sure both channel's waveform are same for the phase matching.

• After completion of the adjustment, use the threadlock (TB-1401B) to secure the azimuth adjustment screws.

1. Load a test tape (VTT-738 etc. : 10kHz) in the Deck.

2. Press the PLAY button. (Normal playback)

3. Use a + tip screwdriver to turn the screw for normal azimuth adjustment so that the left and right outputs are maximized at
the same phase during normal playback.

4. Press the PLAY button. (Reverse playback)

5. Use a + tip screwdriver to turn the screw for reverse azimuth adjustment so that the left and right outputs are maximized at
the same phase during reverse playback.

6. Adjust so that the waveforms for the left and right channels are in alignment.

2. Replacement of Head

BLUE

WHITE

BLACK

RED

EARTH

YELLOW

ORANGE

3. Parts Location

VR361
TAPE SPEED
ADJUSTMENT

VR372

REC/PLAY

GAIN

L-CH

ADJUSTMENT

VR382

REC/PLAY

GAIN
R-CH

ADJUSTMENT

PLAYBACK_L-CH

ADJUSTMENT

L3501

19KHZ-TRAP

EFFECT

ADJUSTMENT

L-CH

19KHZ-TRAP

ADJUSTMENT

- 46 -

VR371

L3551

EFFECT

R-CH

FREQUENCY

ADJUSTMENT

VR381
PLAYBACK_R-CH
ADJUSTMENT

BIAS-ADJUSTMENT

L-CH

VR373

VR383

BIAS-ADJUSTMENT

R-CH

L3601

BIAS