Sony ICF-CD73 / ICF-CD73V Service Manual ▷ View online
9
ICF-CD73/CD73V
3-8.
SPEAKER (SP101)/(SP201)
3-7.
OPTICAL PICK-UP
(KSS-900A)
(KSS-900A)
3
gear (B) (780C)
2
holder (780C)
1
screw
(2
(2
×
8)
7
sled screw assy (780E)
5
rack spring (780C)
4
screw
(B1.7
(B1.7
×
4)
8
optical pick-up
(KSS-900A)
(KSS-900A)
6
4
spacer (slit)
1
connector
(CNP304)
(CNP304)
5
two speakers
(SP101, SP201)
(SP101, SP201)
3
bracket (SP)
ditch
ditch
Note: When installing the speaker lead wire,
lead the speaker lead wire along ditches
and bosses of the cabinet (front).
and bosses of the cabinet (front).
ditch
cabinet (front)
boss
boss
3
bracket (SP)
2
screw (2.6
×
8)
2
screw (2.6
×
8)
10
ICF-CD73/CD73V
SECTION 4
TEST MODE
RADIO
CD
SHUFFLE
REP1
MHz
kHz
AUTO OFF
TIMER
PRESET
TRACK
WEATHER
TV
FM12PM
AM
ALL
LCD AND KEY TEST MODE
Procedure:
1. Turn the power on while pressing simultaneously three but-
1. Turn the power on while pressing simultaneously three but-
tons of
[RADIO ON BAND]
,
[CLOCK]
, and
[1]
.
2. The microcomputer version will be displayed on the LCD.
3. Press the
3. Press the
[AUTO OFF]
button. (The LCD display will become
as follows)
LCD display
4. BEEP (A) will be output and the display corresponding to a
button is turned off, if a button on the set is pressed. Also,
BEEP (A) is output when the button is released.
BEEP (A) is output when the button is released.
Button Corresponding Table
Button
Segment
CLOCK
AM, PM, : (colon),
TIMER SET ON/OFF
TIMER , AUTO OFF
1
1b, 1c
2
2a, 2b, 2d, 2e, 2g
3
3a, 3b, 3c, 3d, 3g
4
4b, 4c, 4f, 4g
5
5a, 5c, 5d, 5f, 5g
TUNE – .
6a, 6b, 6c, 6d, 6e, 6f, 6g
TUNE + >
TRACK , PRESET
RADIO ON BAND
RADIO, WEATHER, TV, FM,
1(FM), 2(FM), TV, .(point), MHz,
kHz
1(FM), 2(FM), TV, .(point), MHz,
kHz
OFF x
BatteryLow, 1a, 1d, 1e, 1f, 1g, 1h, 1i,
2c, 2f, 2h, 2i, 3e, 3f, 4a, 4d, 4e, 5b,
5e
2c, 2f, 2h, 2i, 3e, 3f, 4a, 4d, 4e, 5b,
5e
CD NX
CD, Pz1, Pz2, Pz3, Pz4
MODE
, SHUFFLE, REP, 1, ALL
5. After all buttons on the set were pressed, press the
[AUTO
OFF]
button, and BEEP (B) will be output and the test mode
will be terminated.
6. If there is even one button that was not accepted, the set will
not be released from test mode even though the
[AUTO OFF]
button is pressed.
7. The set will return to normal state when the LCD AND KEY
TEST MODE is terminated.
11
ICF-CD73/CD73V
CD TEST MODE
Procedure:
1. Connect 47 k
1. Connect 47 k
Ω and 100 kΩ resistors in parallel to the end of S501 on the LCD 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
3. Turn the power on. Press the
[CD ]
button.
LCD display
4. The following shows the state transition table for each button operation in respective sub modes of CD TEST MODE.
State Transition Table
If each button is pressed in respective sub modes, the mode will transit to the sub modes listed in table.
Mode transits to sub modes listed in table, if a button is pressed in respective sub modes.
5.
Turn the power off to release the CD TEST MODE.
CD
MODE
Explanation
LCD
Button
MAIN
SUB
OFF
CD
–
+
RADIO ON
AUTO OFF
–
+
Processing
BAND
end
Long pressed
INT
State when TEST MODE is activated.
00
STOP0
FOCUS0
STOP
STOP0
State when a button is pressed once from initial state.
01
FOCUS0
STOP
STOP
EF
Normal
SLDF
SLDR
STOP0
Automatically adjusted value is held.
02
STOP0
FOCUS0
Normal
SLDF
SLDR
FOCUS
FOCUS0
AUTO FOCUS transfer mode
03
STOP
FOCUS
FOCUS
FOCUS SERVO ON state.(CLV-S, TRK/SLED, SERVO OFF)
04
STOP
F.LPC
EF
AUTO
FCSF
FCSR
It will be referred to as LPC ON if FOCUS carries out on.
OFF
F.LPC OFF
LPC OFF in FOCUS state.
05
STOP
ALSV
FOCUS
FOCUS
FOCUS0
FCSF
FCSR
ALL
ALSV
State where all servo systems are turned on.
07
STOP
ALPC OFF
FOCUS
FOCUS
EF
AUTO
FCSF
FCSR
SERVO
ALPC OFF
State where all servo systems are turned on.(LPC:OFF)
08
STOP
TGUP
FOCUS
FOCUS
FCSF
FCSR
TGUP
State with TRK GAIN UP in all servo systems are turned on.(LPC:ON)
09
STOP
ALSV
FOCUS
FOCUS
FCSF
FCSR
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
SLDF
SLDR
SLED is fed inward in STOP state.
d
STOP
STOP
STOP
STOP
SLDR
F.SLED
FCSF
SLED is fed outward in FOCUS state.
E
FOCUS
FOCUS
FOCUS
FOCUS
FCSF
FCSR
SLED is fed inward in FOCUS state.
F
FOCUS
FOCUS
FOCUS
FOCUS
FCSR
.
>
.
>
NX
x
NX
12
ICF-CD73/CD73V
CD-JUMP TEST MODE
Procedure:
1. Connect the oscilloscope to TP (TE) and TP (VC) on the CD board.
1. Connect the oscilloscope to TP (TE) and TP (VC) on the CD board.
Connecting Location: CD board (See page 16)
2. Connect 47 k
Ω and 100 kΩ resistors in parallel to the end of S501 on the LCD board, and further connect 100 kΩ and 220 kΩ resistors
respectively and short them to the GND, and the CD-JUMP TEST MODE will be activated.
3. Insert a CD disc.
4. Turn the power on. Press the
4. Turn the power on. Press the
[CD ]
button.
LCD display
5 . If the
[MODE]
button is pressed, you can jump in fast feed or fast reverse direction with the + > or – . button by the jump
amount set in Table 1.
Table 1
LCD
Button
+
>
–
.
REP ALL
TRACK + 1
TRACK - 1
SHUFFLE
TRACK + 10
TRACK - 10
SHUFFLE, REP
TRACK + 100
TRACK - 100
Waveform of TP (TE) and TP (VC) output in each mode is as follows.
6. Turn the power off to release the CD-JUMP TEST MODE.
CD
TRACK
NX
REP ALL mode
500
500
µ
s/div
SHUFFLE mode
1 ms/div
1 ms/div
SHUFFLE REP mode
10 ms/div
10 ms/div
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