Sony STR NX5MD Tuner Amplifier - AEP, UK AND E MODELS - test mode, schematic diagram

 

 [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.
1. Press the Power  button to turn the power ON.
2. Press the [ENTER] and Power  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.
1. Press the Power  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 Power  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.
1. Turn the power ON or set to the DEMO mode.
2. Press the [GROOVE] and Power  buttons simultaneously.
3. The set is reset, and displays “COLD RESET”, then becomes DEMO mode.

[Amplifier Test Mode]
1. Press the Power  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 before the test mode became active is displayed.

[LED and Liquid Crystal Display All Lit, Software Version Display, Key Check, VACS Level Display Mode]
1. Press the Power  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 liquid 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 clockwise, or it decreases like 0, 9, 8 ... if turn the JOG dial counterclockwise.
“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.
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]
1. Press the Power 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]
1. Press the Power button to turn the power ON.
2. Press three buttons of [ENTER] , [DISPLAY] , and -<< 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.
1. Press the Power 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 counterclockwise 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 unloaded.
• Do not run the sled motor excessively, otherwise the gear can be chipped.

[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.
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 number on the liquid crystal display is blinking.
7. To release from the aging mode, press the Power button to turn the power OFF and operate the cold reset. (Refer to the “MC Cold Reset”)

Display at the Aging Mode
• Display operating state of CD section and tape deck section alternately.
• 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.

• 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.

Notes:
EMC**: The number of mechanical error.
EDC** : The number of no disc error after chucking the disc.

2) Display of mechanical error

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)

Schematic diagrams