Sony CMT-NE5 / HCD-NE5 Service Manual ▷ View online
HCD-NE5
9
1
four screws
(BVTP3
(BVTP3
×
10)
2
harness
3
plate (shield cassette)
4
mechanical deck
1
three screws
(BTP2.6
(BTP2.6
×
8)
3
wire (flat type) (27core)
(CN201)
(CN201)
2
CD cover
6
two screws
7
two washers
4
two screws
5
two washers
8
base unit
(BU-K7BD81B)
(BU-K7BD81B)
3-5.
BASE UNIT (BU-K7BD81B)
3-6.
MECHANICAL DECK
HCD-NE5
10
3-7.
MAIN BOARD
3-8.
AMP BOARD
4
two screws
(BVTP3
(BVTP3
×
10)
8
main board
7
tuner (FM/AM)
1
connector (CN307)
2
connector (CN308)
3
connector (CN903)
5
6
Remove the solder.
3
two screws
(BVTP3
(BVTP3
×
14)
2
connector
(CN308)
(CN308)
4
AMP board
1
connector
(CN307)
(CN307)
11
HCD-NE5
COLD RESET
*
The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode when re-
turning the set to the customer.
the RAM to initial conditions. Execute this mode when re-
turning the set to the customer.
Procedure:
1. Press the
1. Press the
I/1
button to turn the power on.
2. While pressing the
x
button, press the
I/1
button and turn
the
[VOLUME]
knob in the counter-clock wise.
3. The message “RESET” is displayed and the set is reset.
PANEL TEST
*
All segments of liquid crystal display are tested, and the ver-
sion and released date of the micro computer are displayed.
sion and released date of the micro computer are displayed.
Procedure:
1. Press the
1. Press the
I/1
button to turn the power on.
2. While pressing the
[DISPLAY]
button, press the
I/1
button
and turn the
[VOLUME]
knob in the counter-clock wise.
Then all segments of liquid crystal display are turned on.
3. Press the
[DSGX]
button, the version and released date of the
micro computer are displayed.
example of display:
example of display:
0116 V202
4. Press the
[BASS/TREBLE]
button, the model name and
distination are displayed.
example of display:
example of display:
NE5 NA
5. To exit from this mode, perform the “COLD RESET”.
TUNER STEP CHANGE-OVER
*
Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.
AM channel step.
Procedure:
1. Set the FUNCTION to AM, and press the
1. Set the FUNCTION to AM, and press the
I/1
button to turn
the power off.
2. While depressing the
[TUNING + ]
button, press the
I/1
button.
3. The message “9K STEP” or “10K STEP” is displayed on the
liquid crystal display, and thus the channel step is changed
over.
over.
SECTION 4
TEST MODE
M >
Version of micro computer
(In this case, version 202)
(In this case, version 202)
released date of micro computer
(In this case, released of January 16)
(In this case, released of January 16)
SECTION 5
ELECTRICAL CHECK
+
–
–
CD board
TP (RFACO)
TP (VC)
TP (VC)
oscilloscope
(DC range)
Note:
1.
CD Block is basically constructed to operate without
adjustment.
adjustment.
2.
Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3.
Use an oscilloscope with more than 10 M
Ω
impedance.
4.
Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
when the signal level is low than specified value with the
following checks.
5.
Check the focus bias check when optical block is replaced.
FOCUS BIAS CHECK
Procedure :
1. Connect the oscilloscope to TP (RFACO) and TP (VC) on the
1. Connect the oscilloscope to TP (RFACO) and TP (VC) on the
CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the
3. Press the
[CD ]
button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
A good eye pattern means that the diamond shape (
◊
) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
Checking Location:
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
TIME/DIV: 500 ns
1.1
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
for AC range and raise vertical sensitivity.
0.2 Vp-p
TP
(RFACO)
TP (VC)
– CD BOARD (Conductor Side) –
NX
distination
(In this case, North-American model)
(In this case, North-American model)
model name
(In this case, HCD-NE5)
(In this case, HCD-NE5)
HCD-NE5
13
13
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD SERVO Section –
MIACK
8
PO11/BUCK/AD14
36
MILP
5
RESET
2
MICS
4
MIDIO
6
MICK
7
MP3 DECODER
IC301
A/D
CONVERTER
CH2OUTF
CH2OUTR
23
24
21
4
5
6
7
17
18
16
15
RFACI
ASYO
ASYI
FILTER
FILO
PCO
CLTV
FILI
DIGITAL PLL
ASYMMETRY
CORRECTOR
EFM
DEMODULATOR
CD DSP
IC101 (1/2)
MDP
DIGITAL
CLV
PROCESSOR
32K
RAM
ERROR
CORRECTOR
INTERNAL BUS
SQCK
SQSO
EXCK
AOUT1
C4M
XTSL
XTAO
XTAI
AOUT2
R-CH
D/A
DIGITAL
INTERFACE
D/A
CONVERTER
SELECTOR
CLOCK
GENERATOR
SUBCODE
PROCESSOR
SCOR
WFCK
XUGF
GFS
EMPH
SENS
DATA
CLOCK
XLAT
SBSO
SENS
CD DATA
XLT
TEI
FEI
FOCUS/
TRACKING/SLED
SERVO DSP
FOCUS/TRACKING/SLED
PWM GENERATOR
SFDR
CH3FIN
CH4IN
CH3RIN
CH3OUTF
CH3OUTR
CH1FIN
CH1RIN
CH2FIN
CH2RIN
20
MUTE
SRDR
TFDR
TRDR
FFDR
FRDR
SSTP
COUT
MIRR,
DFCT, FOK
DETECTOR
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
CPU INTERFACE
SCLK
TO CPU INTERFACE
FOK
MIRR
DFCT
2
OPIN+
CH4OUTF
CH4OUTR
27
OPOUT
M101
(SPINDLE)
MOTOR
DRIVE
MOTOR
DRIVE
COIL
DRIVE
CH1OUTF
CH1OUTR
COIL
DRIVE
M
M
M102
(SLED)
MOTOR/COIL DRIVE
IC251
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
CD DSP
IC101 (2/2)
• SIGNAL PATH
: CD PLAY
14
13
11
12
SCOR
A
(Page 14)
CD
13
11
12
9
10
14
119
108
21 23
3
1
2
7
TO SERVO AUTO
SEQUENCER
42
51 53
XPCK
112
50 52
45
46
6
XRST
100
X-RST
8
96 97
81
78
117
93
77
86
98 99
115
107
102 105 104
110 111 113 68
95
CD-CLK
97 9
LRCK
BCK
PCMD
LRCKIA
SDI0
63 66 65
16
BCKIA
15
SFSY/LRCKIB
19
SBSY/BCKIB
18
14
LRCKI
BCKI
PCMDI
SDO0
62 60 61
11
96 10
26
27
28
29
24
22
20
19
37
36
E
B
A
D +3.3V
F
DETECTOR
A
B
C
D
RF
SUMMING
AMP
FOCUS
ERROR
AMP
TRACKING
ERROR AMP
RFACO
FEO
TEO
E
F
AUTOMATIC
POWER
CONTROL
Q10
APC LD
AMP
LD
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213EDP)
PD
I-V AMP
D
C
EQ_
IN
41
35
34
EQ
AC_
SUM
RFAC
VCA
X171
16.9344MHz
SYSTEM CONTROLLER
IC801 (1/2)
S101
(LIMIT)
MI-DIO-I 99
MI-DIO-O 98
MI-CK 100
MI-CS 4
MI-CS 4
MP3-ACK 1
MP3-REQ 3
MI-LP 5
MP3-RST 2
XTCN 7
STANDBY
3
MP3-STB 6
• R-ch is omitted due to same as L-ch.
XTACN
95
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