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Symptom
Sounds from Speaker when
Headphone's connected.
Bass / Treble Control Failure.
AMP Sound Dead.
1. "LEFT" Channel dead.
2. "RIGHT" Channel dead.
3. "CENTER" Channel dead.
4. "REAR" Channel dead.
AC-3/DTS Failure.
(DSP Sound Mode)
Video Output Dead.
Remote Controller Failure.
All manuals and user guides at all-guides.com
Cause and Remedy
µ-Com surround mute control PORT check.
A) NOT Supported Headphone Detect.
Push the Speaker On/Off Button(Speaker off).
A) Volume IC check.
1. Resister/Capacitor correction figure check.(Bass)
2. Resister/Capacitor correction figure check.(Treble)
A) Signal Mute TR's inferior.
B) Connector disconnection & disjunction.
Change or close insertion of the connector.
C) Speaker wire's disjunction.
Close insertion of the speaker wire.
D) Volume IC check.
1. I.C voltage check ( +7.5 )V, ( -7.5 )V
2. I.C control data check.
3. I.C signal IN/OUT check.
A) I.C Regulator check.
DSP I/O + (3.3)V,DSP CORE + (1.2)V
CODEC + ( 5)V,CODEC + ( 3.3)V
B) DIR check.
1. OSC check.
2. BICK, LRCK, RDATA Check.
3. Micom Interface Port Check.
C) DSP Check.
1. LRCK Check.
2. Micom Interface Port Check.
3. SDATA 1, 2, 3,4 Check.
D) D/A Check.
1. LRCK/BCK/SDATA check.
2. Signal out check.
A) Video Regulator voltage check.
1. DC voltage check. + ( 12 )V
B) Micom control data check.
C) Video Mute(MONTOR,V1 OUT) port check.(IC101)
A) Battery check.
B) RMC I.C & Resonator inferior.
Ref No.
IC101 Pin No. ( 27 )
I.C109
I.C109 PIN No. ( 26,27,32,33)
I.C109 PIN No. ( 28,34)
Q 105,107,109
CP ( 111)
I.C No. ( 109 )
I.C Pin No. ( 30,52)
I.C PIN No. (49,50)
REG101,REG102
I.C No. (112 ), REG100
I.C103
X-TAL ( 100 )
I.C Pin No. ( 15) ( 16 ) ( 14 )
I.C Pin No. ( 21,22,31 )
I.C No. ( 102)
I.C Pin No. ( 12 )
I.C Pin No.(3,4,14,105,107,108,110,111)
I.C Pin No. ( 117,116,115,113)
I.C No. ( 103)
I.C Pin No. ( 17,18,19)
I.C Pin No. ( 49,47,45,43,41,39,37,35 )
I.C No. ( 106)
I.C Pin No. ( 2,3 )
I.C Pin No. ( 17,10)
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