Sony HTC-NX1 / MHC-NX1 / MHC-NX3AV Service Manual ▷ View online
25
25
HTC-NX1
7-7.
SCHEMATIC DIAGRAM – AUDIO Board –
•
See page 33 for IC Block Diagram.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAYBACK
(
no mark : TAPE PLAYBACK
(
) : RECORD
PB LEVEL (L)
(DECK A)
PB LEVEL (R)
(DECK A)
PB LEVEL (L)
(DECK B)
PB LEVEL (R)
(DECK B)
PB EQ AMP
(DECK A)
PB EQ AMP
(DECK B)
SWITCHING
REC BIAS (L)
(DECK B)
REC BIAS (R)
(DECK B)
BIAS OSC
REC BIAS
-6.8
(PLAYBACK)
D
NC
A +7.5V
APB–LCH
APB–RCH
AGND
BPB–LCH
BPB–RCH
A –7.5V
–VBIAS (–7.5V)
+VBIAS (+7.5V)
B–REC–RCH
B–REC–LCH
TC–HEAD–GND
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
(Page 28)
26
26
HTC-NX1
7-8.
PRINTED WIRING BOARD – LEAF SW Board –
•
See page 19 for Circuit Boards Location.
7-9.
SCHEMATIC DIAGRAM – LEAF SW Board –
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAYBACK
(
no mark : TAPE PLAYBACK
(
) : RECORD
∗
: Impossible to measure
05
DECK A
PLUNGER
DECK B
PLUNGER
(DECK A PLAY)
(DECK A HALF)
(DECK A 120/70)
(DECK A REC)
(DECK B HALF)
(DECK B PLAY)
(DECK B 120/70)
(DECK B REC)
21
21
L
4
1
2
3
4
1
2
3
(
)
DECK B
PLUNGER
DECK A
PLUNGER
(CAPSTAN)
(DECK A 120/70)
(DECK A HALF)
(DECK A REC)
(DECK B HALF)
(DECK B REC)
(DECK B 120/70)
ROTATION DETECT SENSOR
(DECK A)
ROTATION DETECT
SENSOR (DECK B)
(DECK A PLAY)
(DECK B PLAY)
E
CONTROL SWITCH
CAPM–
CAPM+
CAPM–H/L
A–TRGM
TRGM–GND
B–TRGM
A–SHUT
DGND
A–HALF
+5V
A–120/70
B–SHUT
A PLAY
B–HALF / REC–A / REC–B
B–120/70
B PALY
NC
(Page 27)
(Page 28)
27
27
HTC-NX1
7-10.
PRINTED WIRING BOARD – MAIN Board –
•
See page 19 for Circuit Boards Location.
D903
E-1
D904
E-2
IC101
D-6
IC102
B-5
IC107
D-1
IC301
B-8
IC851
B-3
IC852
C-1
IC853
C-3
IC855
A-1
Ref. No.
Location
Ref. No.
Location
D101
D-8
D102
D-7
D103
D-8
D104
D-8
D105
B-5
D106
E-1
D851
C-3
D852
B-3
D855
A-5
D858
A-6
D901
D-2
D902
D-1
• Semiconductor Location
Q101
C-4
Q102
B-2
Q103
B-2
Q104
C-2
Q105
C-4
Q106
D-5
Q107
D-5
Q331
E-8
Q332
E-7
Q333
E-8
Q334
E-7
Q335
D-7
Q336
D-8
Q337
D-8
Q338
D-8
Q339
D-7
Q340
D-8
Q341
D-8
Q342
D-8
Q343
D-7
Q852
A-4
Q855
A-5
Ref. No.
Location
Ref. No.
Location
(Page 30)
(Page 20)
(Page 30)
(Page 22)
(Page 30)
(Page 22)
(Page 26)
(Page 24)
28
28
HTC-NX1
7-11. SCHEMATIC DIAGRAM – MAIN Board (1/2) –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
• 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 25)
(Page 26)
(Page 29)
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