NW-HD3 - Sony Audio Service Manual (repair manual). Page 10

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10
NW-HD3
5. Press the 
 Bx 
 key, “READ” is displayed and hard disk drive
becomes read state.
After 10 seconds, “FIN” is displayed automatically and read
state is completed.
6. Press the [MENU] key, return to minor item selection screen.
5-1-3. Consumption current (write state) check
This mode is used in case consumption current (write state) in the
state where the hard disk drive has booted is checked.
Checking method:
1. Enter the test mode.
2. Press the 
 , 
 key to display major item, and press the  M   m
key to select the “POWER”.
3. Press the 
 , 
 key to display minor item, and press the  M   m
key to select the “A WR”.
4. Press the 
 Bx 
 key, “READY?” is displayed. In this state, each
time [MODE] key is pressed, EL back light ON/OFF switch is
performed.
5. Press the 
 Bx 
 key, “WRITE” is displayed and hard disk drive
becomes write state.
After 10 seconds, “FIN” is displayed automatically and write
state is completed.
6. Press the [MENU] key, return to minor item selection screen.
5-1-4. Charge current check
This mode is used in case charge current is checked.
Checking method:
1. Enter the test mode.
2. Press the 
 , 
 key to display major item, and press the  M   m
key to select the “POWER”.
3. Press the 
 , 
 key to display minor item, and press the  M   m
key to select the “CHG”.
4. Press the 
  Bx 
,  port control state is displayed. In this state,
each time [MODE] key is pressed, port control state switch is
performed.
LCD display
Port control state
USB500
IC7001
pin <znx  XCHG_USB: L
pin <znc  CHG_LIM: L
USB150
IC7001
pin <znx  XCHG_USB: L
pin <znc  CHG_LIM: H
DC500
IC7001
pin <znx  XCHG_USB: H
pin <znc  CHG_LIM: L
DC150
IC7001
pin <znx  XCHG_USB: H
pin <znc  CHG_LIM: H
5. Press the [MENU] key, return to minor item selection screen.
5-2. Audio
The 
 VOLUME +
  key on the main unit or [PLAY MODE] on the remote
commander performs switch of HP/LINE.
While playing the audio track, it's in a repeat state. If 
 Bx 
 key is
pressed, it’s stopped.
Setting method of the audio test mode:
1. The data for audio test mode is copied to hard disk drive.
2. Enter the test mode.
3. Press the 
 , 
 key to display major item, and press the  M   m
key to select the “AUDIO”.
4. Press the 
 , 
 key to display minor item, and press the  M   m
key to select the “TESTLD”.
5. Press the 
 Bx 
 key, “START” is displayed. Then automatically
reboot.
6. After reboot, narrowing-down screen “Artist” is checked and
enter the test mode.
Audio test mode (5-2-1 to 5-2-8) is performed in this state.
5-2-1. Output check
“1 kHz   0 dBs   L-ch/R-ch VOLUME: 27” audio signal is outputted.
Checking method:
1. Enter the audio test mode.
2. Press the 
 , 
 key to display major item, and press the  M   m
key to select the “AUDIO”.
3. Press the 
 , 
 key to display minor item, and press the  M   m
key to select the “OUTPUT”.
    READ
LCD display
    FIN
r
    WRITE
LCD display
    FIN
r
    A WR
LCD display
    READY?
LCD display
    POWER
LCD display
    POWER
LCD display
    CHG
LCD display
    AUDIO
LCD display
    TESTLD
LCD display
    START
LCD display
    AUDIO
LCD display
    OUTPUT
LCD display
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