DOWNLOAD Sharp CD-ES222E (serv.man2) Service Manual ↓ Size: 588.55 KB | Pages: 15 in PDF or view online for FREE

Model
CD-ES222E (serv.man2)
Pages
15
Size
588.55 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Cover and contents, Safety precaution for , Important service notes, , Names of parts, Disassembly, Removing and reinstalling the main parts, Adjustment, Test mode.
File
cd-es222e-sm2.pdf
Date

Sharp CD-ES222E (serv.man2) Service Manual ▷ View online

– 9 –
CD-ES222H/ES222E
Figure 9-1
How to remove the flywheel (TAPE 1,2)
 (See Fig. 9-1)
1. Remove the stop washer (H1) x 1 pc., with a small precision
screwdriver to extract the flywheel from the capstan metal.
Note:
When the stop washer is deformed or damaged, replace it
with a new one.
How to reinstall the parts
Install each part in the reverse order of the removal with care.
TAPE 1
TAPE 2
Stop
Washer
Driver
(H1)x1
Stop Washer
Mechanism
Chassis
Washerx2
Flywheel
How to remove the tape mechanism PWB
(TAPE 1,2)(See Fig. 9-2)
1. Remove the screw (J1) x 1 pc., to remove the tape
mechanism PWB.
2. Remove the screw (J2) x 1 pc.
3. Remove the solder joints (J3) x 2 pcs., to remove the tape
mechanism PWB.
Figure 9-2
TAPE 1,2
Tape 
Mechanism
PWB
Tape 
Mechanism
PWB
(J3)x2
Solder
Joint
(J2)x1
ø2x8mm
(J1)x1
ø2x3mm
CD-ES222H/ES222E
– 10 –
Figure 10-1
CD PLAYER SECTION
Perform steps 1, 2, 3, 10,11, and 12 of the disassembly
method to remove the CD mechanism.
How to remove the T/T  rotate motor
(See Figs. 10-1)
1. Remove the screws (A1) x 2 pcs.
2. Remove the belt (A2) x 1 pc.
3. Remove the screws (A3) x 2 pcs., to remove the T/T  rotate
motor.
(A1)x2
ø2.4x3mm
(A3)x2
ø3x10mm
(A2)x1
Loading Tray
(Bottom View)
Loading Tray
T/T Motor  PWB
T/T Rotate Motor
(B1)x2
ø2.4x5mm
Up/Down Loading Motor
CD Player Unit
(B2)x1
Figure 10-2
How to remove the up/down loading motor
(See Figs. 10-2)
1. Remove the screws (B1) x 2 pcs.
2. Remove the belt (B2) x 1 pc.
How to remove the CD mechanism unit
 (See Fig. 10-3)
Perform steps 1, 2, 3, 10and 13 of the disassembly method to
remove the CD mechanism.
1. Remove the screws (C1) x 4 pcs., to remove the mechanism
unit.
Note
After removing the connector for the optical pickup from the
connector wrap the conductive aluminium foil around the front
end of connector so as to protect the optical pickup from
electrostatic damage.
Figure 10-3
Holder
CD Mechanism Unit
Holder
PWB
(C1)x4
ø2.5x10mm
– 11 –
CD-ES222H/ES222E
FM IF
FM RF
VR351
FM MUTE
Level
T351
AM IF
T302
T306
T304
IC301
IC302
L303
L302
CNP301
FM BAND
COVERAGE fL
AM BAND
COVERAGE fL
AM TRACKING
fL
MAIN PWB
1
1
11
12
22
20
R381
R356
R357
TP301
TP302
ADJUSTMENT
MECHANISM SECTION
•••••
 Driving Force Check
Torque Meter
Specified Value
Play: DM-300
Tape 1: Over 80 g
Tape 2: Over 80 g
•••••
 Torque Check
Torque Meter
Tape 2
Play: DM-300
10 to 20 g.cm
10 to 20 g.cm
Fast forward: DM-300
Over 50 g.cm
Rewind: DM-300
Over 50 g.cm
Specified Value
Tape 1
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
Tape
TCC-119
Variable
3,000 
±
 30 Hz
Speaker
speed
Resistor in
Terminal
motor.
(Load
resistance:
6 ohms)
•••••
 Tape Speed
Figure 11-1
Tape
Motor
Variable Resistor in Motor
TAPE MECHANISM
Figure 11-2 ADJUSTMENT POINTS
TUNER SECTION
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF
450 kHz
1,620 kHz
T351
*1
 AM Band
522 kHz
(fL): T306
*2
Coverage
1.1 
±
 0.1 V
AM
990 kHz
990 kHz
T302
*1
Tracking
fL: Low-range frequency
fH: High-range frequency
Signal generator: 400 Hz, 30%, AM modulated
• AM IF/RF
*1. Input: Antenna
Output: Speaker terminal
*2. Input: Input is not connected
Output: TP301
Adjusting
Parts
Instrument
Connection
Display
Frequency
98.00 MHz
98.00 MHz
VR351*1
Input: CNP301
(30 dB
µ
V)
Output: Speaker
Terminal
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
• FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
FM Band
87.50 MHz
(fL): L303
*1
Coverage
3.4 
±
 0.1 V
FM RF
98.00 MHz
98.00 MHz
L302
*2
(10~30 dB)
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
*1. Input: Antenna,
Output: TP301
*2. Input: Antenna,
Output: Speaker Terminal
• FM Detection
Signal generator: 10.7 MHz, FM sweep generator
FM IF
10.7 MHz
98.00 MHz
T304(Turn
Input: Pin 1 of
the core of
IC301
T304 fully
counter-
clockwise).
Test
Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
Check Point
Instrument
Connection
Display
Frequency
87.5 MHz
87.5 MHz
2.2 V 
±
 1.0 V
TP301
108 MHz
108 MHz
7.8 V 
±
 1.0 V
TP301
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
CD-ES222H/ES222E
– 12 –
TEST MODE
The test mode applied to this microcomputer has three modes,
namely the ordinary test mode for adjustment or measurement,
the aging test mode, and the self-diagnosis test mode for self-
judgment in case of final product inspection.
1.  Turning on the test mode
For obtaining each test mode, press the ON/STAND BY
button, while keeping pressing the following two buttons in
the ordinary stand-by mode (power off ).  In this case, the
main unit buttons are valid.  When turning the POWER on
with remote control buttons, test modes are not obtained.
[Ordinary test mode]
1. CD Test Mode (TEST 1) ..........................................
CD + VOLUME UP
2. Tuner Test Mode (TEST 2) ......................................
TUNER(BAND) + VOLUME UP
3. Electronic Volume Test Mode (TEST 3) ..................
TUNING DOWN + VOLUME UP
4. Timer Test Mode (TEST 4) ......................................
TIMER/SLEEP + VOLUME DOWN
5. FL Test Mode (TEST 5) ...........................................
CLOCK + VOLUME DOWN
6. CD MECHANISM Aging Test Mode (TEST 8) ........
MEMORY/SET + VOLUME DOWN
2. CD Test Mode (TEST 1)
In the CD test mode the operation of each step is possible
even if the LID-SW is off.  If focus cannot be taken in step
3 or any error is processed, it is impossible to proceed to
the next step.  During error processing, end the test mode
by pressing the ON/STAND BY button or return to the step
1 by pressing the CD STOP button.  Any other operations
are inhibited.
1. Step 1 Mode
When the CD test mode is obtained, the following display
lights up.  Then CD initialization operation flow proceeds
up to CD STB off to wait for the following buttons to be
pressed.
[Self-diagnosis Test Mode]
1.  Button input diagnosis test mode (TEST 6) .…....
TUNNIG UP + VOLUME UP
Processes are different depending on destinations at initial
settings.
One second after display lights up
Press the following buttons in this state to obtain the
operations specified below.
"ON/STAND BY" ...... Test mode and power turned off to
shift to the ordinary standby mode.
"FF/FWD" ................. After the pickup returns to the
innermost periphery, it slides toward
the outer periphery while this button
is pressed.
"REW/REV" .............. After the pickup returns to the
innermost periphery, it slides toward
the inner periphery while this button
is pressed.  If PICKUP IN is on, input
is invalid.
"MEMORY/SET" ...... Shift to step 2
"STOP" ..................... Invalid
"VIDEO/AUX" ........... CLV
2. Step 2 Mode
Press the "MEMORY/SET" button in this mode to transmit
the laser lighting command LDON (8400) and turn on the
laser.  Any other operations are not performed in this case.
Press the following buttons in this state to obtain the
operations specified below.
"ON/STAND BY" ..... Test mode and power turned off to
shift to the ordinary standby mode.
"FF/FWD" ................ The pickup slides toward the outer
periphery while this button is pressed.
"REW/REV" ............. The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
"MEMORY/SET" ...... Shift to step 3
3. Step 3 Mode
While the laser keeps lighting, CD initialization operation
flow proceeds up to 'CLV servo ON' to wait for the
following buttons to be pressed.(Focus servo turned on
for focus search)
The focus search is repeated to take focus.
Press the following buttons in this state to obtain the
operations specified below.
"ON/STAND BY" ..... Test mode and power turned off to
shift to the ordinary standby mode.
"FF/FWD" ................ The pickup slides toward the outer
periphery while this button is pressed.
"REW/REV" ............. The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
"MEMORY/SET" ...... If focus has been taken, shift to step 4
is executed. If not, acceptance is
inhibited.
*If the focus is not received after it has been taken, the
process returns to step 1.
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