Sony ICF-CD855 / ICF-CD855L Service Manual ▷ View online
8
ICF-CD855/CD855L
ANTENNA LOCATION
3-7.
MAIN BOARD
9
power unit
qs
MAIN board
qa
SIDE board
5
three screws
(B2.6)
(B2.6)
4
connector
(CNP304)
(CNP304)
7
6
two screws
(B2.6)
(B2.6)
q;
Remove four solders.
8
Remove two solders.
1
four screws
(B2.6)
(B2.6)
2
TUNER board
3
connector
(CNP2)
(CNP2)
FM wire antenna (ANT1)
FM wire antenna (ANT1)
TUNER board
FRONT VIEW
BACK VIEW
9
ICF-CD855/CD855L
3-8.
SPEAKER (SP101/SP201)
CD lid block
2
screw
cover (FFC)
4
Draw two flexible flat
cables out of the holes
in the cabinet (rear)
block.
cables out of the holes
in the cabinet (rear)
block.
6
cabinet (rear)
block
block
5
three bosses
slot
Disengage three bosses of the cover (FFC)
from the slots in the CD lid block.
Note: Be careful about the cover (FFC),
from the slots in the CD lid block.
Note: Be careful about the cover (FFC),
because it very sharp.
holes
harness with
connector
connector
1
two screws
3
two screws
7
CD lid block
2
cover (SP)
1
six screws
(B2.6)
(B2.6)
4
bracket (C) L
3
screw (B2.6)
5
screw (B2.6)
6
bracket (B) L
7
screw (B2.6)
8
bracket (A) L
9
speaker (SP101)
9
speaker
(SP201)
(SP201)
8
bracket (A) R
7
screw (B2.6)
5
screw (B2.6)
6
bracket (B) R
3
screw (B2.6)
4
bracket (C) R
3-9.
CD LID BLOCK
10
ICF-CD855/CD855L
SECTION 4
TEST MODE
LCD, LED 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
[MODE]
.
2. The microcomputer version will be displayed on the LCD.
3. Press the
3. Press the
SNOOZE•SLEEP 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),
ALARM A
ALARM A, AM (ALARM A),
PM (ALARM A), 1 (ALARM A),
2 (ALARM A), 7 segment 1/2/3,
ALARM A LED
PM (ALARM A), 1 (ALARM A),
2 (ALARM A), 7 segment 1/2/3,
ALARM A LED
ALARM B
ALARM B, AM (ALARM B),
PM (ALARM B), 1 (ALARM B),
2 (ALARM B), 7 segment 7/8/9,
ALARM B LED
PM (ALARM B), 1 (ALARM B),
2 (ALARM B), 7 segment 7/8/9,
ALARM B LED
VOL +
– VOL –
VOL –
4e, 4f, 5a, 5d, 5e, 6b, 6e
SLEEP
SLEEP
NAP
NAP
1
1b, 1c
2
2a, 2b, 2d, 2e, 2g
3
4a, 4b, 4c, 4d, 4g
4
5b, 5c, 5f, 5g
5
6a, 6c, 6d, 6f, 6g
TUNE/TIME SET – .
7 segment 11
TUNE/TIME SET + >
7 segment 10
RADIO ON, BAND
RADIO, WEATHER, TV, FM1,
FM2, LW, MW
FM2, LW, MW
OFF x
MHz, kHz
CD u
CD, B, TRACK , WAKE UP
MODE
REP, 1, ALL, SHUFFLE,
FM-MONO
FM-MONO
5. After all buttons on the set were pressed, press
the
SNOOZE•SLEEP OFF
button, and BEEP (B) will be out-
put and the test mode will be terminated.
6. If there is even one button that was not accepted, the set will
n o t be released f r o m test mode eve n t h o u g h
the
the
SNOOZE•SLEEP OFF
button is pressed.
7. The set will return to normal state when the LCD, LED AND
KEY TEST MODE is terminated.
RADIO
SLEEP
WEATHER
FM1FM2
LWTVAM
MWPM
FM MONO
AM
SHUFFLE
REP 1 ALL
REP 1 ALL
WAKE UP
TRACK
VOL
CD
PM
MHz
kHz
ALARM A
ALARM B
NAP
AM
PM
11
ICF-CD855/CD855L
CD TEST MODE
Procedure:
1. Connect 22 k
1. Connect 22 k
Ω and 100 kΩ resistors in parallel to the end of S618 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
u
button.
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.
MODE
Explanation
LCD
Button
MAIN
SUB
OFF
CD
–
+
RADIO ON
SLEEP
–
+
Processing
BAND
end
Long pressed
INT
State when TEST MODE is activated.
0
STOP0
FOCUS0
STOP
STOP0
State when a button is pressed once from initial state.
1
FOCUS0
SLDF
SLDF
SLDR
SLDR
EF
ADJ1:11
Normal
STOP0
Automatically adjusted value is held.
2
STOP0
FOCUS0
Normal
FOCUS
FOCUS0
AUTO FOCUS transfer mode
3
STOP
FOCUS
FOCUS
FOCUS SERVO ON state.(CLV-S, TRK/SLED, SERVO OFF)
4
STOP
F.LPC
EF
AUTO
It will be referred to as LPC ON if FOCUS carries out on.
OFF
ADJ2:11
F.LPC OFF
LPC OFF in FOCUS state.
5
STOP
ALSV
FCSF
FCSF
FCSR
FCSR
SCURVE
ALL
ALSV
State where all servo systems are turned on.
7
STOP
LPC OFF
FCSF
FCSR
EF
ADJ3:11
AUTO
SERVO
ALPC OFF
State where all servo systems are turned on.(LPC:OFF)
8
STOP
TGUP
FCSF
FCSR
TGUP
State with TRK GAIN UP in all servo systems are turned on.(LPC:ON)
9
STOP
ALSV
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
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
FOCUS
FCSF
FCSR
SLED is fed inward in FOCUS state.
F
FOCUS
FOCUS
STOP
FOCUS
FOCUS
FOCUS
FCDR
.
>
.
>
u
x
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