1-50 (No.YD068)
5.1.6 Tuner/IF CIRCUIT
(A) No Picture on the TV screen
Hi-Fi REC.
No picture on the TV
screen
Does the Video signal at
the TU701 Pin19.
Is 33VT applied to TU701
Pin17?
Check 5V line.
Replace Tuner.
Is 5VT applied to TU701
Pin4?
Does the Clock signal
appear at TU701 Pin12?
Does the data signal
appear at TU701 Pin13?
Check the signal from IC301
Pin65 to IC501 Pin49.
Does Sync appear at
IC501 Pin111.
Does the Video signal at
the IC501 Pin47.
Does the Video signal at
the IC301 Pin61.
Does the Video signal at
the IC903 Pin6.
Check the signal flow from IC903
Pins26, 27 to SC901 Pin19.
Check the signal from IC501
Pin47 to IC301 Pin56.
Check the signal from IC903
Pin6 to IC301 Pin61.
Check the signal flow from
TU701 Pin19 to IC301 Pin48.
Check the lIC Clock Signal
of -COM Pin18.
Check the lIC Data Signal
of -COM Pin17.
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
NO
YES
Содержание HR-XV28SEF
Страница 9: ... No YD068 1 9 SECTION 3 DISASSEMBLY This service manual does not describe DISASSEMBLY ...
Страница 69: ... No YD068 1 69 F FE RFL FIG 7 2 DVD F FE RFL FIG 7 3 CD ...
Страница 70: ...1 70 No YD068 5 4 8 FOCUS ON WAVEFORM F FE RFL FIG 7 4 CD FOCUS_S FACT FACT FIG 8 1 DVD ...
Страница 74: ...1 74 No YD068 5 4 13 ZR36868 AUDIO OUTPUT TO AUDIO DAC 2 COMPOSITE VIDEO SIGNAL FIG 12 2 FIG 13 1 ...
Страница 75: ... No YD068 1 75 5 4 14 AUDIO OUTPUT FROM AUDIO DAC FIG 14 1 ...
Страница 78: ......
Страница 84: ...A 1 2 3 4 5 B C D E F G EE MODE VIDEO TU MODE AUDIO TUNER IF CIRCUIT DIAGRAM SHEET 4 2 11 2 12 ...
Страница 86: ...A 1 2 3 4 5 B C D E F G SCART JACK CIRCUIT DIAGRAM SHEET 6 2 15 2 16 ...
Страница 87: ...A 1 2 3 4 5 B C D E F G ع DVD SERVO CIRCUIT DIAGRAM SHEET 7 2 17 2 18 ...
Страница 88: ...A 1 2 3 4 5 B C D E F G ع DVD AV JACK CIRCUIT DIAGRAM SHEET 8 2 19 2 20 ...
Страница 89: ...A 1 2 3 4 5 B C D E F G ع DVD SYSTEM CIRCUIT DIAGRAM SHEET 9 2 21 2 22 ...
Страница 90: ...PRINTED CIRCUIT DIAGRAMS VCR MAIN BOARD TOP SIDE 2 23 2 24 ...
Страница 91: ...VCR MAIN BOARD BOTTOM SIDE 2 25 2 26 ...
Страница 92: ...COMPONENT PARTS LOCATION GUIDE VCR MAIN 2 27 2 28 ...
Страница 93: ...LOCATION GUIDE LOCATION GUIDE POWER BOARD KEY BOARD 2 29 2 30 ...
Страница 101: ...IC7V1_SDA5650X IC802_NM1232 IC903_BH78968FS IC803_LD1117A IC801_ DA9605H IC BLOCK 2 45 2 46 ...
Страница 107: ......
Страница 113: ... No YD068 3 5 052 517 061 056 518 052A 055 410 077 076 078 060 051 064 A11 A12 023 080 058 BACK SIDE ...