1-48 (No.YD068)
(B) Hi-Fi Playback
PB mode
No Sound.
Check the Vcc of IC801
(Pins34, 40)
Is the RF Envelope at
IC801 Pin44 over 2Vp-p?
Check IC801 Pin42(Data),
Pin43(Clock)
Do Audio Signals appear at
IC801 Pin16(L-CH), 17(R-CH)?
Do Audio Signals appear at
IC802 Pins11, 16?
Do Audio Signals appear at
JK902?
Do Audio Signals appear at
IC802 Pin10(L-CH), 16(R-CH)?
Check the parts of -COM
(IC501 Pins17, 18)
Check the Connection at
P3D01 Pins7, 9.
Check the A.IN line of
IC802(C850, C852)
Check the Vcc of IC802
Pin13.
Check IC501 Pin26
(A.H/SW)
Check the Hi-Fi Selection switch.
(IC801 Pin41) and the Tape quality.
Check Power 5.0V, 12VT.
Check Power.
Replace IC802.
Check the Jack(JK902)
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
Summary of Contents for HR-XV28SEF
Page 9: ... No YD068 1 9 SECTION 3 DISASSEMBLY This service manual does not describe DISASSEMBLY ...
Page 69: ... No YD068 1 69 F FE RFL FIG 7 2 DVD F FE RFL FIG 7 3 CD ...
Page 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 ...
Page 75: ... No YD068 1 75 5 4 14 AUDIO OUTPUT FROM AUDIO DAC FIG 14 1 ...
Page 78: ......
Page 86: ...A 1 2 3 4 5 B C D E F G SCART JACK CIRCUIT DIAGRAM SHEET 6 2 15 2 16 ...
Page 87: ...A 1 2 3 4 5 B C D E F G ع DVD SERVO CIRCUIT DIAGRAM SHEET 7 2 17 2 18 ...
Page 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 ...
Page 89: ...A 1 2 3 4 5 B C D E F G ع DVD SYSTEM CIRCUIT DIAGRAM SHEET 9 2 21 2 22 ...
Page 90: ...PRINTED CIRCUIT DIAGRAMS VCR MAIN BOARD TOP SIDE 2 23 2 24 ...
Page 91: ...VCR MAIN BOARD BOTTOM SIDE 2 25 2 26 ...
Page 92: ...COMPONENT PARTS LOCATION GUIDE VCR MAIN 2 27 2 28 ...
Page 93: ...LOCATION GUIDE LOCATION GUIDE POWER BOARD KEY BOARD 2 29 2 30 ...
Page 101: ...IC7V1_SDA5650X IC802_NM1232 IC903_BH78968FS IC803_LD1117A IC801_ DA9605H IC BLOCK 2 45 2 46 ...
Page 107: ......