ICF-CD555TV - Sony Audio Service Manual (repair manual). Page 11

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11
ICF-CD555TV
– SIDE-KEY BOARD (Conductor Side) –
TP604
Mode
Description
LCD
Key
Main
Sub
s
7
.
>
BAND
TV ON
.
>
Processing
end
Long pressed
INT
State when TEST MODE is activated.
0
STOP0
FOCUS0
STOP
STOP0
State when  
s
  key is pressed once from initial state.
1
FOCUS0
SLDR
SLDF
EF
Normal
STOP
Automatically adjusted value is held.
2
STOP0
FOCUS0
SLDR
SLDF
Normal
FOCUS
FOCUS0
Auto focus transfer mode
3
STOP
FOCUS
FOCUS
Focus servo ON state.(CLV-S, tracking/sled, servo OFF)
4
STOP
F.LPC
FCSR
FCSF
EF
AUTO
It will be referred to as LPC ON if focus carries out on.
OFF
F.LPC OFF
LPC OFF in focus state.
5
STOP
ALSV
FCSR
FCSF
SCURVE
ALL
ALSV
State where all servo systems are turned ON.
7
STOP
ALPC OFF
FCSR
FCSF
EF
AUTO
SERVO
ALPC OFF
State where all servo systems are turned ON.(LPC OFF)
8
STOP
TGUP
FCSR
FCSF
TGUP
State with tracking gain up in all servo systems are turned ON.(LPC ON)
9
STOP
ALSV
FCSR
FCSF
AUTO
Mode in which automatic adjustment is made at once.
b
SLED
SLDF
Sled is fed outward in stop state.
c
STOP
STOP
STOP
STOP
STOP
SLDF
SLDR
Sled is fed inward in stop state.
d
STOP
STOP
STOP
STOP
STOP
SLDR
F.SLED
FCSF
Sled is fed outward in focus state.
E
FOCUS
FOCUS
FOCUS
FOCUS
FOCUS
FCSF
FCSR
Sled is fed inward in focus state.
F
FOCUS
FOCUS
FOCUS
FOCUS
FOCUS
FCSR
CD-JUMP  TEST  MODE
Procedure:
1. Connect the oscilloscope to TP (TE) and TP (VREF) on the
CD board.
Connecting Location: CD board (See page 13)
2. Connect 270 k
Ω and 47 kΩ resistors in parallel to the end of
TP604 on the SIDE-KEY board, and short another end of re-
sistors to the GND, and the CD-JUMP TEST MODE will be
activated.
3. Insert a CD disc.
4. Turn the power ON. Press the
7
key.
5 . If the 
[MODE]
 key is pressed, you can jump in fast feed or fast
reverse direction with the
>
or
.
key by the jump
amount set in table 1.
6. Turn the power OFF to release the CD-JUMP TEST MODE.
Table 1
LCD
Key
>
.
REP ALL
TRACK + 1
TRACK - 1
SHUFFLE
TRACK + 10
TRACK - 10
SHUFFLE, REP
TRACK + 100
TRACK - 100
Waveform of TP (TE) and TP (VREF) output in each mode is as
follows.
Connecting Location:
REPEAT – ALL mode
500 
µ
s/div
SHUFFLE mode
1 ms/div
SHUFFLE – REPEAT mode
10 ms/div
CD  TEST  MODE
Procedure:
1. Connect 120 k
Ω and 47 kΩ resistors in parallel to the TP604 on the SIDE-KEY board, and short another end of resistors to the GND,
and the CD TEST MODE will be activated.
2. Insert a CD disc.
3. Turn the power ON. Press the
7
key.
4. The following shows the state transition table for each key operation in respective sub modes of CD TEST MODE.
5. Turn the power OFF to release the CD TEST MODE.
State Transition Table
If each key is pressed in respective sub modes, the mode will transit to the sub modes listed in table.
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