3-14
3. Y/C CIRCUIT
(4) When the Video signal doesn’t appear on the screen in REC Mode,
YES
YES
YES
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
Check system part
(V.H/SW)
Replace the IC301.
Check the drum
*OPTION
Pins72, 73, 74(SP)
Pins65, 66, 67(EP)
REC mode
Check the EE mode
NO
Is EE mode normal?
Is color normal?
A
A
YES
YES
Is brightness normal?
Does signal appear at
IC301 Pins41, 50?
NO
Check X301 oscillation
frequency.
YES
Is the brightness signal sup-
plied to IC301 Pins18?
Is 5V supplied to IC301
Pins23, 44, 45, 68, 77?
Check the power of Pins23,
44, 45, 52, 68, 77.
Check the 5V power
NO
NO
NO
NO
NO
Is Y/C Bus applied to
IC301 Pins53, 54, 55?
Check the REG 5V power
Check system part
Do X301 and X-TAL
oscillate?
Check X301, 302
Is V.H SW supplied to
IC301 Pin57?
Does the FM signal appear
at IC301 Pins73(SP)/
66(EP)?
Содержание ABV341 Series
Страница 2: ......
Страница 36: ...3 34 3 35 2 TU IF CIRCUIT DIAGRAM PB REC...
Страница 39: ...3 40 3 41 5 JACK CIRCUIT DIAGRAM...
Страница 41: ...3 44 3 45 7 TIMER CIRCUIT DIAGRAM XBV343...
Страница 42: ...3 46 3 47 8 TIMER CIRCUIT DIAGRAM XBV342...
Страница 45: ...3 52 3 53 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...
Страница 65: ...02 12 04 R17149A ZENITH DAP202K 3 80 3 81 6 JACK CIRCUIT DIAGRAM...
Страница 70: ...LOCATION GUIDE 3 90 3 91 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW...
Страница 71: ...LOCATION GUIDE 3 92 3 93 2 MAIN P C BOARD BOTTOM VIEW...
Страница 92: ...3 114 2 Audio related Signal ASDAT3 IC501 PIN 157 ABCK IC501 PIN 148 ALRCK IC501 PIN 149 ASDATA3 FIG 14 2...
Страница 98: ...3 121 3 122 2 RF DSP SERVO CIRCUIT DIAGRAM CD DVD LD will not on COMBI SCART MTK 03 3 25 SR17445A...
Страница 99: ...3 123 3 124 3 AUDIO CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17447A...
Страница 100: ...3 125 3 126 4 AV JACK CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17446A...
Страница 103: ...3 131 3 132 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...
Страница 110: ...EXPLODED VIEW 1 Deck Mechanism Exploded View 5 1 CONTENTS SECTION 5 MECHANISM OF DVD PART MTK MODEL...
Страница 134: ...4 22 GEAR F R GEAR AY P2 P3 F R Lever Tension Base Boss CAM...