HELP SHEET BROUGHT TO YOU BY
PITCH CONTROL IC
SPEED AND PHASE CONTROL IC AN6680
An6682
DRIVE TURNTABLE DRIVE IC AN6675
www.deckdoctor.com.au
ERRATIC PITCH CHECK HERE
PITCH CONTROL IC AN6682
BUT NO DIPPING OF STROBE LAMP
PITCH CONTROL ADJUSTMENT
PITCH CONTROL ON /OFF SELECT MN 4011B
www.djsdeckdoctor.com
BUT PITCH FADER FIRST
1ST
Q203
FG AMP
PITCH FADER
Set the pitch control to zero pull the connector
VOLTAGE REGULATOR
2SC1328
POWER DRIVE COIL
cn102 of the drive pcb connect the multi tester to
2SD637
CHECK POSITION COILS
terminals to 5 and 6 on the pitch fader pcb Wires
POWER DRIVE COIL
FOR RESISTANCE FROM
Brown and Red ADJUST Vr302 for a value
BACK OF BOARD 3 UNITS
2.7 K/ OHOM + - 0.1 OF RESISTANCE VALUE
ALL THE SAME
UNPLUG PITCH CONTROL PCB FROM MAIN
BOARD BEFORE ADJUST PITCH ON PCB BEFORE
SLIDE FADER
ZENER DIODE
PITCH TEST POINTS
MA 1051M
Tp27 + GROUND ON main PCB
5.1 VOLT ZENER
FREQUENCY COUNTER NEEDED
USUALLY DIPPING DRIVE
AND STROBE LIGHT
POWER ON / PITCH set zero CENTER POSITION
SPEED CHECK THIS FOR 5VOLT
SPEED 33 ADJUSTMENT Vr301
SET TO 262.08KHZ +-0.05KHZ
PITCH ADJUSTMENT
BRAKE ADJUSTMENT
PITCH CONTROL ON AND OFF IC
IF PITCH FADER DON'T WORK AFTER
RECTIFIER
CHANGE REPLACE THIS IC NORMALLY
WHEN DRINK HAS GONE DOWN FADER
SVDIRBA20F
AND KEEP THE DECK RUNNING THIS IC SUFFERS
NO POWER
LED DRIVER
2SD1265
if DIM LIGHT ON STROBE
CHECK THIS
An6680
CONTROL CHIP
WHEN PLATTER GOES
BACK AND FORTH
PROTECTION IC'S
2 - 2SD637
X210 CRYSTAL
IF NO POWER
4.193MHZ OSCILLATOR
CHECK THESE are NORMAL
TRANSISTOR NPN 2 UNITS
IC AN6675
MAIN SOURCE OF NO POWER
VOLTAGE REGULATOR
BROUGHT TO YOU BY www.deckdoctor.com.au
Q2 Q3
DRIVE
Q201 2SC1846
HOPE IT HELPS YOU OUT FOR MORE INFO GO TO MY WEB SITE
WHEN PLATTER GOES SUPER FAST
ALL WAYS CHECK TRANSFORMER FOR 20VOLT AND MICRO SWITCH ON POWER KNOB
USUALLY THIS IS THE PROBLEM
NO POWER/STROBE

ALL WAYS CHECK FROM MAINS CABLE IN AND ON
NOTE THIS A RECENT BOARD IF YOUR CHECKING OUT OLD TURNTABLE GO TO SITE

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Document Outline

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