DOWNLOAD Sony DHC-NX5MD / STR-NX5MD Service Manual ↓ Size: 5.03 MB | Pages: 32 in PDF or view online for FREE

Model
DHC-NX5MD STR-NX5MD
Pages
32
Size
5.03 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dhc-nx5md-str-nx5md.pdf
Date

Sony DHC-NX5MD / STR-NX5MD Service Manual ▷ View online

5
2-1. CASE
2-2. FRONT PANEL ASSY
Note: Follow the disassembly procedure in the numerical order given.
SECTION 2
DISASSEMBLY
3
case
1
two screws
(case 3 TP2)
2
two screws
(BVTP3 
× 10)
1
two screws
(case 3 TP2)
3
two screws
(BVTT3 
× 6)
4
front panel assy
1
flat cable (7 core)
(CN132)
2
flat cable (25 core)
(CN131)
6
2-3. BACK PANEL ASSY
2-4. MAIN BOARD
3
four screws
(BVTP3 
× 10)
3
six screws
(BVTP3 
× 10)
4
back panel assy
2
connector
(CN173)
1
flat cable (13 core)
(CN1)
3
two screws
(BVTP3 
× 10)
2
connector (CN111)
1
connector
(CN181)
4
connector (CN152)
5
main board
7
SECTION 3
TEST MODE
[CD Delivery Mode]
• This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the
?/1
button to turn the power ON.
2. Press the 
[ENTER]
 and
?/1
buttons simultaneously.
3. A message “LOCK” is displayed on the liquid crystal display,
and the CD delivery mode is set.
[Change-over the MW Tuning Interval]
• The MW tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the
?/1
button to turn the power ON.
2. Press the 
[TUNER]
 button to select the function “TUNER”,
and press the 
[TUNER BAND]
 button to select the BAND “MW”.
3. Press the
?/1
button to turn the power OFF.
4. Press the 
[TUNER MEMORY]
 and
?/1
buttons simultaneously,
and the display on the liquid crystal display changes to “MW
9 k STEP” or “MW 10 k STEP”, and thus the tuning interval
is changed over.
[MC Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Turn the power ON or set to the DEMO mode.
2. Press the 
[GROOVE]
 and
?/1
buttons simultaneously.
3. The set is reset, and displays “COLD RESET”, then becomes
DEMO mode.
[Amplifier Test  Mode]
Procedure:
1. Press the
?/1
button to turn the power ON.
2. Press three buttons of 
[ENTER]
 , 
[DISPLAY]
 , and
[TUNER BAND]
 simultaneously.
3. “ALC OFF” is displayed, then the function which was set be-
fore the test mode became active is displayed.
[LED and Liquid Crystal Display All Lit, Software Ver-
sion Display, Key Check, VACS Level Display Mode]
Procedure:
1. Press the
?/1
button to turn the power ON.
2. Press three buttons of 
[ENTER]
 , 
[DISPLAY]
 , and
[STEREO/MONO]
 simultaneously.
3. LEDs and liquid crystal display are all turned on.
Rotating the JOG dial changes over the check patterns of liq-
uid crystal display.
4. Successively, the following three modes can be activated.
(1) Press the 
[VIDEO]
 button, and the software version is displayed
on the liquid crystal display.
(2) Press the 
[MD]
 button, and the key check mode is activated.
In the key check mode, the liquid crystal display displays “K
0 J0 V0”. Each time a button is pressed, “K” value increases.
However, once a button is pressed, it is no longer taken into
account.
“J” value increases like 1, 2, 3 ... if turn the JOG dial clock-
wise, or it decreases like 0, 9, 8 ... if turn the JOG dial counter-
clockwise.
“V” value increases like 1, 2, 3 ... if turn the 
[VOLUME]
 dial
clockwise, or it decreases like 0, 9, 8 ... if turn the JOG dial
counterclockwise.
(3) Press the 
[TAPE]
 button, and the VACS level is displayed on
the liquid crystal display.
5. To release from these mode, press three buttons in the same
manner as step 2, or remove the power cord.
[MC Hot Reset]
• This mode resets the set with the preset data kept stored in the
memory. The hot reset mode functions same as if the power
cord is plugged in and out.
Procedure:
1. Turn the power ON or set to the DEMO mode.
2. Press three buttons of 
[ENTER]
 , 
[DISPLAY]
 , and
[TUNER MEMORY]
 simultaneously.
3. The set is reset, and becomes standby state.
[Change-over of VACS ON/OFF]
Procedure:
1. Press the
?/1
button to turn the power ON.
2. Press three buttons of 
[ENTER]
 , 
[DISPLAY]
 , and 
[GROOVE]
simultaneously, and the display on the liquid crystal display
changes to “VACS ON” or “VACS OFF”, and thus the VACS
ON/OFF is changed over.
[VIDEO input, Record and CD play in CD function]
Procedure:
1. Press the
?/1
button to turn the power ON.
2. Press three buttons of 
[ENTER]
 , 
[DISPLAY]
 , and
- m simultaneously.
3. “DVD 5.1CH” is displayed on liquid crystal display, and at
the same time, CD is played and the deck B is placed in the
record status.
[CD Service Mode]
• This mode can run the CD sled motor optionally. Use this mode,
for instance, when cleaning the optical pick-up.
Procedure:
1. Press the
?/1
button to turn the power ON.
2. Press the 
[CD]
 button to select the function “CD”.
3. Press three buttons of 
[ENTER]
 , 
[POWER  SAVE/DEMO
(STANDBY)  
, and 
[STEREO/MONO]
 simultaneously.
4. Set to the Sled Servo mode.
5. With the CD in stop status, turn the JOG dial clockwise to
move the optical pick-up to outside track, or turn it counter-
clockwise to inside track.
6. To release from this mode, perform as follows.
1) Move the optical pick-up to the most inside track.
2) Remove the power cord.
Notes: • Always move the optical pick-up to most inside track when
releasing from this mode. Otherwise, a disc will not be un-
loaded.
• Do not run the sled motor excessively, otherwise the gear can
be chipped.
8
[Aging Mode]
This mode can be used for operation check of CD section and tape
deck section.
CD section and tape deck section work in parallel.
• If an error occurred:
The aging operation stops only an error occurred sections and
display then status.
• If no error occurs:
The aging operation continues repeatedly.
Procedure:
1. Set disc in DISC5 tray.
2. Load the tapes into the decks A and B respectively.
3. Press the 
[PLAY MODE]
 button to set the “ALL DISCS” mode,
and press the 
[REPEAT/PTY]
 button to “REPEAT” off.
4. Press the 
[CD]
 button to select the function “CD”.
5. Press three buttons of 
[ENTER]
 , 
[POWER  SAVE/DEMO
(STANDBY)  
, and 
[TUNER BAND]
 simultaneously.
6. The aging mode is activated, if the indicator of disc tray num-
ber on the liquid crystal display is blinking.
7. To release from the aging mode, press the
?/1
button to turn
the power OFF and operate the cold reset. (Refer to the “MC
Cold Reset”)
1. Display at the Aging Mode
• Display operating state of CD section and tape deck section al-
ternately.
• If an error occurred, stop display which that section.
2. CD Section
• Display at the aging mode is the same as the normal operation.
• The sequence during the aging mode is following as below.
Aging mode sequence (CD section) :
Open the disc1 tray
Disc5 chucking
Disc5 TOC read
Disc5 play track1 for 2 seconds
Disc5 play last track for 2 seconds
• Display at an error occurred
1) Display of the error count
(1)
Press three buttons of 
[ENTER]
 , 
[POWER SAVE/DEMO
(STANDBY)  
, and 
[GROOVE]
 simultaneously.
(2)
Display of the error count following as below.
Display
EMC
**
EDC
**
Notes:
EMC
**
: The number of mechanical error.
EDC
**
: The number of no disc error after chucking the disc.
2) Display of mechanical error
Display
E
**
M##$$&&
Notes:
**
: The number of mechanical error.(“00” is latest one)
(Press the 
[PLAY MODE]
 button to changes next error display)
## : Not used.
$$ : Loading error. (Second figure is not used)
D : The error in the midst of close at the except mechanical trouble.
E : The error in the midst of open at the except mechanical trouble.
C : The error in the midst of chuck up at the except mechanical
trouble.
F : The error in the midst of EX-open at the except mechanical
trouble.
&&: Loading error. (Second figure in not used)
1:The error in the midst of chuck up.
2:The error in the midst of chuck down.
3:Time up of EX-open
4:Time up of EX-close.
3) Display of no disc error
Display
E
**
D##$$&&
Notes:
**
: The number of mechanical error.(“00” is latest one)
(Press the 
[REPEAT]
 button to changes next error display)
##:
01: Focus error
02: GFS error
03: Set up error
$$:
00: No disc error when does not chucking retry.
02: No disc error when chucking retry to completion.
&&: The state when judged no disc error. (Second figure is not used)
1: Stop
2: Set up
3: TOC read
4: Access
5: Play
6: Pause
7: Manual search (Play)
8: Manual search (Pause)
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