5-1 Trouble shooting Chart
No +19V output
Is the F501
(Fuse3.15A) normal?
Go
No
Is the D533/D534
normal
Yes
Yes
Yes
No
Replace the U531
Replace the
D538/D539/D540/D541
Replace the F501(Use the
same ICW)
No
Is the U531
(TOP258EN) normal
Is the D531 D532
U533 normal
Yes
Replace the D531 D532 U533
No
Is there about 15V at
the U532 Pin3.4?
l
Replace the U532
Yes
No +19V output
Power line of Audio PCB is short
No
Summary of Contents for HTL2160C/G/M/S/T/W/12/F7/93
Page 34: ...OP Board Print layout Bottom side 7 13 7 13 ...
Page 35: ...CN Board Print layout Bottom side 7 14 7 14 ...
Page 36: ...CN Board Print layout Top side 7 15 7 15 ...
Page 37: ...FK Board Print layout Bottom side 7 16 7 16 ...
Page 38: ...FK Board Print layout Top side 7 17 7 17 ...
Page 39: ...Power Board Print layout Bottom side 7 18 7 18 ...
Page 40: ...Main Board Print layout Bottom side 7 19 7 19 ...
Page 41: ...Main Board Print layout Top side 7 20 7 20 ...
Page 43: ...Main IC SP8202_RDB Functional Block Diagram 9 1 ...
Page 49: ...Exploded View for HTL2160 12 F7 93 10 1 10 1 ...