Sony HTC-NX300 / MHC-NX300AV Service Manual ▷ View online
38
38
HTC-NX300
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
7-18. SCHEMATIC DIAGRAM – MAIN Board (1/2) –
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : CD PLAY
(
no mark : CD PLAY
(
) : TAPE PLAYBACK (DECK A)
[
] : TAPE PLAYBACK (DECK B)
〈〈
〉〉
: RECORD
(Page 35)
(Page 36)
(Page 39)
(Page 39)
(Page 41) (Page 41)
(Page 41) (Page 41) (Page 41)
39
39
HTC-NX300
7-19. SCHEMATIC DIAGRAM – MAIN Board (2/2) –
•
See page 44 for Waveform.
[
] : TAPE PLAYBACK (DECK B)
〈〈
〉〉
: RECORD
∗
: Impossible to measure
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
(
no mark : CD PLAY
(
) : TAPE PLAYBACK (DECK A)
(Page 33)
(Page 33)
(Page 28)
(Page 38)
(Page 43)
(Page 43)
(Page 43)
(Page 38)
40
40
HTC-NX300
7-20. PRINTED WIRING BOARD – POWER Board –
•
See page 25 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D851
A-5
D852
A-4
D853
A-3
D854
B-3
IC852
A-6
IC853
A-5
IC854
A-2
IC855
A-7
IC856
A-4
IC857
A-4
Q401
B-2
Q402
B-2
(Page 37)
(Page 37)
(Page 37)
(Page 37)
(Page 37)
41
41
HTC-NX300
7-21. SCHEMATIC DIAGRAM – POWER Board –
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : CD PLAY
no mark : CD PLAY
(Page 38)
(Page 38)
(Page 38)
(Page 38)
(Page 38)
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