Harman Kardon AVR 133 Service Manual ▷ View online
Ref No.
Power On Failure
A) AC-Cord check.
1. FLT does not light up.
B) Power Trans (Main/ST-BY) check.
2. ST-BY LED does not light up.
C) Fuse's disconnection check.
F ( 301)
D) Connector's disconnection or disjunction.
Change or close insertion of the connector.
CN301,FPC101
E) Inferior ST-By switch.
SW(700)
F) VFD Driver I.C & Resonator check.
I.C701 SC16315
1. VFD Driver I.C VCC(+3.3)V check.
I.C701 Pin No13
2. VFD Driver clock pulse check.
I.C701 Pin No5
Fuse Disconnection.
A) Inferior transformer.
(Power On)
B) AMP drive TR out. (POWER TR)
Q206( FL, FR, C, SL, SR )
C) AMP drive TR out. ( POWER TR )
Q205 ( FL, FR, C, SL, SR )
D) voltage check.
1. B+ ( 47 )V, B- ( 47 ) V
Key Disorder.
A) Key's being pushed check.
B) Key signal input components inferior.
C) Key PORT check.
I.C101 Pin No. (49,50,51 )
D) µ-COM I.C inferior.
1. µ-COM IC VCC +3.3V check.
I.C101 Pin No. ( 15,16,47 )
Power Off in 2~3 sec.
A) Regulator I.C out.
I.C 300 (LM1117S_3.3V)
after Power On.
1. Signal IN/OUT check.
B) Drive transistor out. ( POWER TR )
Q205 ( FL, FR, C, SL, SR )
Q206( FL, FR, C, SL, SR )
C) Protection circuit check.
1. Output DC check.
2. µ-COM I.C protection terminal check.
u-COM Pin No. ( 1 )
D) Connector's disconnection or disjunction
CP (111)
E) SLEEP MODE cancellation.
Bump Sound
A) FRONT Mute transistor's out and inferior.
Q (105 )
(During input-select switch's change.)
µ-Com front mute control PORT check.
IC101 Pin No. ( 28 )
B) CENTER Mute transistor's out and inferior.
Q ( 107 )
µ-Com center mute control PORT check.
IC101 Pin No. ( 26 )
C) SURROUND Mute transistor's out and inferior.
Q ( 109 )
TROUBLESHOOTING
Cause and Remedy
Symptom
Ref No.
Cause and Remedy
Symptom
µ-Com surround mute control PORT check.
IC101 Pin No. ( 27 )
Sounds from Speaker when
A) NOT Supported Headphone Detect.
Headphone's connected.
Push the Speaker On/Off Button(Speaker off).
Bass / Treble Control Failure.
A) Volume IC check.
I.C109
1. Resister/Capacitor correction figure check.(Bass)
I.C109 PIN No. ( 26,27,32,33)
2. Resister/Capacitor correction figure check.(Treble)
I.C109 PIN No. ( 28,34)
AMP Sound Dead.
A) Signal Mute TR's inferior.
Q 105,107,109
1. "LEFT" Channel dead.
B) Connector disconnection & disjunction.
CP ( 111)
2. "RIGHT" Channel dead.
Change or close insertion of the connector.
3. "CENTER" Channel dead.
C) Speaker wire's disjunction.
4. "REAR" Channel dead.
Close insertion of the speaker wire.
D) Volume IC check.
I.C No. ( 109 )
1. I.C voltage check ( +7.5 )V, ( -7.5 )V
I.C Pin No. ( 30,52)
2. I.C control data check.
I.C PIN No. (49,50)
3. I.C signal IN/OUT check.
AC-3/DTS Failure.
A) I.C Regulator check.
(DSP Sound Mode)
DSP I/O + (3.3)V,DSP CORE + (1.2)V
REG101,REG102
CODEC + ( 5)V,CODEC + ( 3.3)V
I.C No. (112 ), REG100
B) DIR check.
I.C103
1. OSC check.
X-TAL ( 100 )
2. BICK, LRCK, RDATA Check.
I.C Pin No. ( 15) ( 16 ) ( 14 )
3. Micom Interface Port Check.
I.C Pin No. ( 21,22,31 )
C) DSP Check.
I.C No. ( 102)
1. LRCK Check.
I.C Pin No. ( 12 )
2. Micom Interface Port Check.
I.C Pin No.(3,4,14,105,107,108,110,111)
3. SDATA 1, 2, 3,4 Check.
I.C Pin No. ( 117,116,115,113)
D) D/A Check.
I.C No. ( 103)
1. LRCK/BCK/SDATA check.
I.C Pin No. ( 17,18,19)
2. Signal out check.
I.C Pin No. ( 49,47,45,43,41,39,37,35 )
Video Output Dead.
A) Video Regulator voltage check.
1. DC voltage check. + ( 12 )V
I.C No. ( 106)
B) Micom control data check.
I.C Pin No. ( 2,3 )
C) Video Mute(MONTOR,V1 OUT) port check.(IC101)
I.C Pin No. ( 17,10)
Remote Controller Failure.
A) Battery check.
B) RMC I.C & Resonator inferior.
Ref No.
Cause and Remedy
Symptom
1. µ-COM I.C B+( 3.3 )V check.
2. REMOCON data check.
I.C NO. (101) / I.C Pin No. ( 62)
FM Failure.
A) FM MUTE adjustment inferior.
B) FRONT-END inferior.
C) FM DET COIL inferior.
D) PLL&MPX IC check.
1. PLL&MPX I.C B+( 5 )V,B+( 3.3 )V check.
I.C NO. (1 ) / I.C Pin No. ( 8,21 )
2. PLL control data check. (Data/CE/Clock)
E) TUNER B+ voltage inferior.
F) µ-COM I.C & Resonator inferior.
I.C No. ( 101 )
1. µ-COM I.C B+( 3.3 )V check.
2. Micom control data check.
I.C Pin No. ( 20,23,24,60,61)
AM Failure.
A) PLL&MPX IC check.
1. PLL&MPX I.C B+( 5 )V,B+( 3.3 )V check.
I.C NO. (1 ) / I.C Pin No. ( 8,21 )
2. PLL control data check (Data/CE/Clock)
B) TUNER B+ voltage inferior.
C) AM OSC COIL inferior.
D) µ-COM I.C & Resonator inferior.
I.C No. (101 )
1. µ-COM I.C B+( 3.3)V check.
2. Micom control data check.
I.C Pin No. ( 20,23,24,60,61)
Stereo Effect Failure.
A) FM DET COIL Inferior.
Stereo does not light up.
B) PLL&MPX IC check.
1. PLL&MPX I.C B+( 5 )V,B+( 3.3 )V check.
2. MPX control data check.
C) µ-COM I.C & Resonator inferior.
I.C No. ( 101 )
1. µ-COM IC B+( 3.3)V check
2. Micom control data check.
I.C Pin No. ( 20,23,24,60,61)
Tuner Sound Dead.
A) Connector's disconnection or disjunction.
1. "L / R" Channel dead.
Change or Close insertion of the connector.
2. "LEFT" Channel dead.
B) FM DET COIL inferior.
3. "RIGHT" Channel dead.
C) AM IFT COIL inferior.
D) PLL&MPX IC check.
1. Signal IN/OUT terminal.
2. I.C driving voltage check. ( +5V,+3V3 )
I.C NO. (1 ) / I.C Pin No. ( 8,21 )
★ MECHANICAL PARTS LIST ( AVR-133 )
♣ Parts without Parts No. are not supplied.
No.
DESCRIPTION
Q'TY
PARTS No.
PACKAGE
INSTRUCTION MANUAL
1
5707000001360S
BOX,GIFT(535*448*235)
1
6007211180010S
CUSHION,SNOW(EPS)
2
6230212064000S
PE,SHEET 750*1460/SET
1
6327040059000S
POLY BAG, 330*240*0.05
1
6337040062010S
POLY BAG, 85*70
1
6337210242000S
REMOCON
1
8300310000010S
ANTENNA, LOOP
1
E601016000010S
ANTENNA, WIRE(FM)
1
E605010070001S
BATTERY, AAA
3
G670001R50210S
CABINET & CHASSIS
1
WINDOW, DISPLAY
1
5077212543000S
2
FILTER, FLT
1
5200210262000S
3
BADGE
1
5630210548000S
4
PANEL, FRONT
1
3067213971000S
5
FELT, STRIP
2
2690040057010S
6
LENS, STANDBY
1
3710210793000S
7
BUTTON, STANDBY
1
5097213641000S
8
BUTTON, POWER SWITCH
1
5097213631000S
9
PCB ASS'Y, STANDBY SW
1
10
BRACKET, POWER SWITCH
1
4010213546000S
11
SW, PUSH
1
G000122006060S
12
PCB ASS'Y, POWER SW
1
13
PCB ASS'Y, FRONT
1
14
HEAT SINK, MAIN
1
2120210538100S
15
PCB ASS'Y, GUIDE1
1
16
BRACKET, H SINK
5
4010056906010S
17
CABINET, TOP
1
3007041236061S
18
PCB ASS'Y, AMP
1
19
CHASSIS, MAIN
1
3200200026020S
20
POWER TRANS, 240V/50HZ
1
8200858630220S
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