3-13
FLOW CHART NO.13
Hi-Fi audio can not be playbacked normally. (Hi-Fi E-E mode is normal.)
FLOW CHART NO.14
Hi-Fi audio can not be recorded normally in the linear audio mode. (E-E mode is normal.)
Is the audio signal inputted into Pin(76,78,80) of IC301?
Does the Bias oscillation circuit operate normally?
Is the audio signal outputted to Pin(96) of IC301?
Is the Playback Envelope signal outputted to
Pin(33) of IC451?
Replace IC301.
Is CL504 and the connected cable normal?
Is the Hi-Fi-H-SW signal inputted into to Pin(39) of IC451?
Yes
Yes
Yes
Yes
Yes
Is the audio signal outputted to Pin(7) of IC301?
Yes
Yes
Replace AC head.
Yes
Yes
No
No
No
No
Check the Hi-Fi-H-SW line between
Pin(39) of IC451 and Pin(25) of
IC501, and service it if detective.
Check the line between Pin(6) of IC451 and
Pin(76,78,80) of IC301, and service it if detective.
Check the Bias oscillation circuit (Q421,Q422,
Q423,Q424,Q425) and service it if detective.
Replace
IC451.
Replace IC451.
No
Replace IC301.
No
Replace CL504 and the connected cable.
No
FLOW CHART NO.12
Hi-Fi audio can not be recorded normally. (E-E mode is normal.)
Is the REC FM signal outputted to Pin(26) of IC451?
Is the line between Pin(8) of CL253 and
Pin(26) of IC451 normal?
Replace the Cylinder Assembly.
Yes
Yes
Yes
No
Replace IC451.
No
Service the line between Pin(8) of CL253 and
Pin(26) of IC451.
Summary of Contents for DV-PF33U
Page 57: ...5 13 Fig DM16 41 42 43 L 13 44 45 Slide Fig DM17 ...
Page 70: ...5 3 1 Main 1 8 Schematic Diagram 3 SCHEMATIC DIAGRAMS ...
Page 72: ...7 3 3 Main 3 8 Schematic Diagram ...
Page 73: ...8 3 4 Main 4 8 Schematic Diagram ...
Page 74: ...9 3 5 Main 5 8 Schematic Diagram ...
Page 75: ...10 3 6 Main 6 8 Schematic Diagram ...
Page 76: ...11 3 7 Main 7 8 DVD OPEN CLOSE Schematic Diagrams ...
Page 77: ...12 3 8 Main 8 8 Schematic Diagram ...
Page 80: ...15 3 11 DVD Main 1 3 Schematic Diagram ...
Page 81: ...16 3 12 DVD Main 2 3 Schematic Diagram ...
Page 83: ...18 3 13 DVD Main 3 3 Schematic Diagram ...
Page 86: ...21 5 2 Main CBA Bottom View ...