Yorkville Sound
3400
service manual
M1011A.SCH DATABASE HISTORY, M1002A.SCH DATABASE HISTORY
Specification
Parts list
Shown Wired For
Testing Repaired Circuit Board
Safety
AP3000 AND AP3400 SERVICE
Page 9
Page 8
Page 10
Image 9
Page 8
Page 10
Contents
3400
HIGH EFFICIENCY STEREO POWER AMPLIFIER
Quality and Innovation Since
CANADA
Power Sources
IMPORTANT SAFETY INSTRUCTIONS
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
Power Cord
CIRCUIT DESCRIPTION
VOLTAGE AMPLIFIER
SHUTDOWN CIRCUIT
CIRCUIT DESCRIPTION
THE SECOND TIER
QUIESCENT CONDITION
Current Limit Protection Circuitry
DC Protection
Conditions of test
Fan Circuit
EMS Circuit
Thermal Shutdown Circuit
Identifying Defective Boards in the AP-3400
STEP 3 POWER UP PROCEDURE WITHOUT M1002A BOARDS
SPECIFICATIONS
STEP 4 DISMANTLING AND REASSEMBLY PRECAUTIONS
POWER
STEP 4 DISMANTLING AND REASSEMBLY PRECAUTIONS
STEP 3 POWER UP PROCEDURE WITHOUT M1002 BOARDS
AP3400 Parts List 10/28/98
STEP 1 VISUAL INSPECTION OF FRONT PANEL AND FAN
M1011A.SCH DATABASE HISTORY
M1002A.SCH DATABASE HISTORY
M1013A.SCH DATABASE HISTORY
MODELS - AP-3400
M1011A.SCH DATABASE HISTORY
DATE
VER# DESCRIPTION OF CHANGE
MS2BOTTOMBAMP
M1011A
SHEAR
SHEAR
M1011A.PCB DATABASE HISTORY
M1011A
LEFT = CHAN A
RIGHT = CHAN B
M1012
C8M1012
SHEAR
SHEAR
MPSA06
MJH11018
2N5551
B C E
2N5551
MJH11018
MPSA06
B C E
AP-3400
M1013A
COPPER OZ
SHEAR
M1002A AP-3400
5WATT
@R55WATT
Testing Repaired Circuit Board
AP3000 AND AP3400 SERVICE
Quick Fix for M1002 and M1002A
YORKVILLE SOUND
the M1002 or M1002A circuit board to be serviced
If the
AP-3400
M1002A
SHEAR
CHECK
AP-3400CEXFMR WIRING NOV
SHOWN WIRED FOR
#1289
A C - W H I T E
AP-3400CEXFMR WIRING NOV
SHOWN WIRED FOR
#1289
A C - W H I T E
Related pages
What should I do if my scans aren't
sharp on the Flextight 848
?
Top
Page
Image
Contents