5-1 Trouble shooting Chart
VFD No display on Front Control Board
VFD No display on
Front Control Board
Go
Yes
Refer to CN502 on Power Board
No
Fix the connection HTS3261:XP8 on
Front Control Board and XP8 on
Main Board
No
Replace U4 on Main Board, or replace
the Main Board
No
HTS3261:Check the CON607 ON Front
Control Board pin 1 2 arrive the condition
XP8 PIN1 PIN2
No
Yes
Yes
Yes
Correct connection
No
Yes
Replace U135 or VFD
Check every supply voltage on Main Board
whether normal or not.
(XP8 PIN4:-24V, PIN5: 12V, PIN6: 3.3V)
Check voltage -24V, +5V,+12V on Power
Board at CN502 position and Front Control
Board (HTS3261:XP8 PIN4:-24V
PIN5:+12V PIN6:+5V)
Check the power key(HTS3261: PAD607),
open/closed key(HTS3261: PAD603), source
key(HTS3261: PAD606) on Touch Board
whether work normally or not
Check Front Control Board signals
SCL,SDA
(HTS3261:XP8 PIN1: SCL PIN2:SDA)
Check whether bad solder exists on
HTS3261:XP8 on Front Control Board and
VFD135 of VFD,
Summary of Contents for HTS3261/12/98
Page 13: ...RIGHT LEFT SUB WOOFER RIGHT LEFT SUB WOOFER 2 4 ...
Page 14: ... 0 ANTENNA 0 287 5 AC MAINS 2 5 ...
Page 56: ...7 18 Front Control Board Print layout top side 7 18 ...
Page 57: ...Touch Board Print layout top and bottom sides 7 19 7 19 ...
Page 58: ...7 20 7 20 Amplifier Board and Aux Input Board Print layout top side ...
Page 59: ...7 21 7 21 Amplifier Board and Aux Input Board Print layout bottom side ...
Page 60: ...7 22 7 22 Power Supply Print layout top side ...
Page 61: ...7 23 7 23 Power Supply Print layout bottom side ...
Page 62: ...Main Board Print layout top side 7 24 7 24 ...
Page 63: ...Main Board Print layout bottom side 7 25 7 25 ...
Page 64: ...8 1 8 1 Exploded view for HTS3261 12 98 ...
Page 65: ...REVISION LIST Version 1 0 9 1 Initial release for HTS3261 12 Version 1 1 Adding HTS3261 98 ...