3-4
ELECTRICAL TROUBLESHOOTING GUIDE
1. Power(SMPS) CIRCUIT
NO 5.3VA.
Replace the F101.
(Use the same Fuse)
Is the F101 normal?
Is the R101
normal?
Is the BD101
normal?
NO
NO
NO
NO
NO
NO
Replace the
BD101.
Replace the R101.
Is the D102
normal?
Check or Replace
the D102.
Replace the D112.
Replace the IC103.
YES
YES
YES
YES
YES
YES
YES
Is Vcc(8.5~21V) sup-
plied to IC101 Pin7?
NO
Is the D112 normal?
Is there about 2.5V
at the IC103 Vref?
Check the Main PCB
5.3VA/5.0V Line short?
(1) No 5.3VA (SYS/TUNER)
NO 12VA.
Check or Replace
the D110.
Is the Vcc(13V) supplied
to (+) terminal in D115?
Check or Replace
the Motor Vcc.
Is the Vcc(12V) supplied
to (-) terminal in D115?
NO
NO
Replace the D115.
YES
YES
YES
(2) No 12VA (TO CAP, DRUM MOTOR)
NO 5.0VA.
5.3VA Line Check.
Is 5.3VA put into
the Q160 Emitter?
Is about 5V put into
the Q160 Base?
Is the Q162 Base
“H”?
NO
NO
Check the Power
Control.
NO
Check or Replace the Q162,
R157, R158, R159, D121.
YES
YES
YES
Check or Replace
the Q162/Q160.
YES
(3) No 5.0V (SYS, Hi-Fi, TUNER, Y/C)
Содержание HR-XV11EX
Страница 3: ...SECTION 1 SUMMARY CONTENTS Important Safety Precautions SPECIFICATIONS 1 5 ...
Страница 91: ...3 32 3 33 2 TU IF NICAM A2 CIRCUIT DIAGRAM EE MODE VIDEO TU MODE AUDIO 03 4 7 SR14506A VJW602CP s ...
Страница 94: ...3 38 3 39 5 SCART JACK CIRCUIT DIAGRAM 03 4 7 SR14505B VJW602CP s ...
Страница 99: ...3 48 3 49 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Страница 110: ... 02 12 04 R17149A COMBI NS DAP202K 3 74 3 75 6 JACK CIRCUIT DIAGRAM ...
Страница 115: ...LOCATION GUIDE 3 84 3 85 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...