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Model
XL-65H (serv.man22)
Pages
64
Size
2.71 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
xl-65h-sm22.pdf
Date

Sharp XL-65H (serv.man22) Service Manual ▷ View online

– 13 –
XL-55H/65H
3. Preset frequencies for various destinations (random preset memory)
BAND
16-25
26
FM106.00 MHz
27
FM  90.00 MHz
28
FM
FM  98.00 MHz
29
MONO
FM108.00 MHz
30
FM  87.50 MHz
Europe 2, 4
CH
BAND
1
FM  87.50 MHz
2
FM108.00 MHz
3
FM
FM  98.00 MHz
4
STEREO
FM  90.00 MHz
5
FM106.00 MHz
Europe 2, 4
CH
BAND
6
AM  531 kHz
7
AM1602 kHz
8
AM
AM  990 kHz
9
AM  603 kHz
10
AM1404 kHz
11-15
LW
Europe 2, 4
CH
• The hatched sections of the table are not stored in memory.
4. Electronic volume Test Mode (TEST 3)
When the test mode is set, the following indication lights for one second.
When this mode is set, BASS/TREBLE is set to 0 (0 dB) and start-up function is set to CD when volume is -14 dB (STEP 23).
The button operations in the test mode are the same as those of ordinary operation excepting sound volume UP/DOWN.
(1) The indication is the same as that of ordinary operation excepting test mode setting.
(2) The sound volume control with the sound volume UP/DOWN button is only the following 3 steps unlike the ordinary state.
      Volume- 
 
(STEP 0) <-> Volume-14 dB (STEP 23) <-> Volume-0 (STEP 30)
(3) BASS/TREBLE is switched when button operation is performed.
The current time and timer time are set in the following procedure to perform the timer playback.
1.Set the current time to 1:00, set the timer to ON time 1:05, set the function to Aux, and set volume STEP 12. One minute is counted
as one second, and the timer playback operation is performed. The fade-in (when playback is started) is executed at a rate of
one step for 1 sec. After completion of fade-in the fade-out is executed at a rate of one step for 1 sec (WAIT 1 sec inserted). After
completion of fade-out the power is turned off (after WAIT 1 sec), and the mode is changed to the standby mode.
  The indication during operation is the same as that of ordinary timer operation.
5. Timer test Mode (TEST 4)
When the test mode is set, the following indication lights for one second.
6. LCD Test Mode (TEST 5)
When the LCD test mode is set, all the LCD segments are lighted. After that the indication is changed as follows according to
the "PLAY" button input.
          Lighting of all segments          Lighting of odd segments          Lighting of even segments
XL-55H/65H
– 14 –
7. Key input diagnosis Test Mode (TEST 6)
When the test mode is set, the following indication appears.
ERROR LIST
PU-IN SW detection error
CD read error
Error content ........... Disc data cannot be read properly or
even if it can be read, the disc is not a
playable one.
Probable  cause ....... The disc is loaded upside down, not CD-
DA, scratches, stains, etc.
Action ...................... Open the CD lid, then reload the disc
correctly. Remove the scratches or stains
on the disc.
NO DISC
Tape mechanism error 1
Tape mechanism error 2
Error content ............ The detection SW cannot detect ON
after a fixed period of time even if the
microcomputer controls the CD pickup
to return to the innermost position.
Probable cause ........ Defective or poorly connected PU-IN
SW or slide motor.
Action ....................... Solve the problem and turn on the power
again.
Error content ........... Focusing is impossible.
Probable  cause ....... The disc is loaded upside down, not CD-
DA, scratches, stains, etc.
Action ...................... Open the CD lid, then reload the disc
correctly. Remove the scratches or stains
on the disc.
Error content ........... The detection SW "CAM-SW" cannot
detect ON (mechanism in operation) even
if the motor and solenoid are controlled
to play back, fast forward, rewind, or
record the tape.
Probable cause ....... Mechanism is in operation when this
message appears: Defective or poorly
connected CAM-SW. Mechanism stops:
Defective or poorly connected motor or
solenoid.
Action ...................... Solve the problem and turn on the power
again.
Error content ........... Initialization cannot be completed when
the microcomputer controls the motor
and solenoid to initialize the tape
mechanism (to set the mechanism to the
stop mode). The detection SW "CAM-
SW" cannot detect OFF While the
mechanism is in operation.
Probable cause ....... Mechanism is in operation when this
message appears: Defective or poorly
connected CAM-SW. Mechanism stops:
Defective or poorly connected motor or
solenoid.
Action ...................... Solve the problem and turn on the power
again.
This test mode is intended to check whether all the main unit buttons can be detected. Accordingly, in this test mode checking
as to whether the "ON/STAND-BY" button was pressed after all the buttons shown below were pressed is performed. If the result
is OK, OK is indicated. Even any one of keys was not pressed, an error is indicated. In case of OK termination or error termination
exit from this mode occurs when the "ON/STAND-BY" button is pressed next time, and the standby mode is set.
1. In case of "MEMORY/SET" + "PLAY"+ "ON/STAND-BY"
Since SURROUND and RDS are not provided, the following 9 buttons are detected as all buttons.
PLAY, ON/STAND-BY, BAND, BASS/TREBLE, FUNCTION, MEMORY/SET, REC PAUSE, REW, FF, STOP.
The OK/NG indication of test result is as follows.
– 15 –
XL-55H/65H
SW700
VOLUME
ON—OFF
SW701
ON/STAND-BY
ON—OFF
SW702
FUNCTION
ON—OFF
SW703
STOP/CLEAR,TUNING DOWN
ON—OFF
SW704
PLAY/CD STOP,TUNING UP
ON—OFF
SW705
BASS/TREBLE
ON—OFF
SW706
MEMORY/SET
ON—OFF
 The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
(  ) indicates AM
< > indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
(  ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
 Parts marked with “       ” (                          ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
 Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
 Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression “capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
 Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
REF. NO
DESCRIPTION
POSITION
POSITION
REF. NO
DESCRIPTION
SW707
REC/PAUSE
ON—OFF
SW708
REW/PRESET DOWN
ON—OFF
SW709
FF/PRESET UP
ON—OFF
SW800
PICKUP IN
ON—OFF
SW801
CD LID OPEN/CLOSE
ON—OFF
SW901
FOOL PROOF
ON—OFF
SW902
CAM
ON—OFF
E C B
(S) (G) (D)
(1) (2) (3)
FRONT
VIEW
FRONT
VIEW
B C E
FRONT
VIEW
2HA1015 GR
2HC1815 GR
2SC2001 K
2SC380 O
2SK2541
HSB562 C
KRA102 M
KRC102 M
KRC104 M
KRA107 M
KRC107 M
KTC2026 Y
MPG3372X
SVC348S
1      2     3
TYPES OF TRANSISTOR AND LED
Figure 15 TYPES OF TRANSISTOR AND LED
XL-55H/65H
– 16 –
REC  MUTE
Q105
Q106
REC 
150K
150K
MUTE
ALC 
11
12
10
IC102 
BA3311L 
NF
L-IN
R-IN
NF
L-OUT 
ALC 
R-OUT 
Q151
Q152
L151
Q153
Q171
Q172
REC 
SWITCHING 
Q101-Q104 
SWITCHING 
IC101 
IC101
HEAD SELECTOR
BA3126N 
REC  SW
P/B  SW
CONT
P/B  SW
REC  SW
A-12V 
L-CH
R-CH
R-CH
L-CH
L-CH
L-CH
A-GND 
A-GND 
A-GND 
R-CH
R-CH
ERASE 
CNP101
CNS101
CNS901
P.F 
CAM  SW
Q906
BIAS
REC 
RUN_PLS 
SURROUND
MOT 
SOL 
U_CON  5V
D-GND 
A_12V 
TAPE  SW 
1
2
3
4
5
6
7
CNP901
PHOTE INTERRUPTER 
SW901 
FOOL 
PROOF
SW902 
CAM 
M901
TAPE MOTOR
SOLENOID
SOL901
RE
TA
TO DISPLAY PWB
Q904
Q902
A_12V 
A_12V 
SWITCHING 
B-CAN(NC) 
10 10
1 2 3 4 5 6 7 8 9
CNP703
M_GND 
Q903
Q905
Q901
REC BIAS
CONT
SWITCHING
SWITCHING
RUN PLS
SOL
M_12V
U_CON5V
MOT
SWITCHING
SWITCHING
SWITCHING
TAPE MOTOR
DRIVER
SOLENOID
DRIVER
BIAS OSC
SWITCHING
1
2
3
4
5
6
7
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
L-CH
R-CH
ERASE
 HEAD
RECORD/
PLAYBACK
HEAD 
IC102
REC./P.B.
EQUALISER
AMP.
ST
CF352 
CF351
FM IF 
24 22 
21 20 19 
18 
17 
16 
15 
14 
13 
12 
11 
10 
IC303 
LA1832S
22 
21 
20 
17 
16 
15 
14 
13 
12 
1 2 
7 8 
9
10
11
12
13
14
15
16
10 
11 
IC302 
LC72131 
IC521
LC72723M
X352
X351
456kHz
L354
LOW PASS
FILTER
X IN
NC
CE
DI
CL
MO/ST 
FM
FM
DO
CE
DI
CL
DO
FM IN 
X OUT 
DATA
CLE
VSS 
AOUT
VDD 
AM IN 
NC
IF IN 
IF REQ
SW
VCC 
AM ANT
AM OSC.
VD301-1 
SVC348S 
VD301-2 
SVC348S 
VR351
10K(B) 
FM MUTE LEVEL 
23 
T351
+5V 
AM  IF 
MUTE
R-MUTE
MO/ST 
L-CH  OUT
R-CH  OUT
MPX  VCO 
AM LOW CUT
FM/AM OUT 
MPX  IN
AM OSC OUT
FM AFC
AM RF IN
VSM 
AM OSC IN 
AM MIX OUT
AM IF IN
GND 
REG 
FM IF IN
SD
STEREO
FM  DET
PHASE 
(AM/FM) 
IF  OUT
PHASE 
FM  IF  DET./FM  MPX./AM  IF
FE301
FM  FRONT END
4.5MHz
X521
456 kHz
Q351
SWITCHING 
R_MUTE
PLL  TUNER
RDS
ZD351 
Q360
FM+B
FM+B
A_12V 
FM  IF 
AM OSC OUT 
AM MIX OUT
A_GND
+5V 
+5V 
A_12V
D_GND
AM IF IN
T302
T306
CF302
2
1
3
4
5
6
7
8
10.7MHz 
FM  IF 
CF301
10.7MHz 
TP301 
AM
FM
CNP301
SO301
FM
ANTENNA
SOCKET
L341
BALUN
Q301
Q521
XL-65H ONLY
Figure 16 BLOCK DIAGRAM (1/4)
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