DOWNLOAD Sharp XL-70 (serv.man6) Service Manual ↓ Size: 72.5 KB | Pages: 7 in PDF or view online for FREE

Model
XL-70 (serv.man6)
Pages
7
Size
72.5 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Test mode
File
xl-70-sm6.pdf
Date

Sharp XL-70 (serv.man6) Service Manual ▷ View online

XL-60H/70H
– 14 –
2. CD Test Mode (TEST 1)
In the CD test mode the operation of each step is enabled even when the LID-SW is off. However, if focus cannot be set in step
3 or any error processing is started, it is impossible to proceed to the next step. When the error processing is started, operations
other than termination of test mode by pressing the POWER button or return to the step 1 by pressing the STOP button are inhibited.
1. Step 1 Mode
When the CD test mode is turned on, the following indication lights, the processing (until turning-off of CD STB terminal of CD
initialization operation flow) is executed, and the next button input is waited.
After lighting for one second
If the following operation buttons are pressed in this state, the operation is performed as follows.
"POWER" ................. The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................. After the pickup returns once to the innermost periphery, it slides toward the outer periphery while this
button is held down.
"REW/REV" .............. After the pickup returns once to the innermost periphery, it slides toward the inner periphery while this
button is pressed. However, if PU-IN is on, input is invalid.
"PLAY" ..................... Shift to step 2
"STOP" ..................... Invalid
"REC PAUSE" .......... Shift to step 5
* In case of initialization the pickup is moved toward the inner periphery. Any buttons other than "POWER" button are not
accepted until the shift of pickup to the inner periphery is completed at this time. If PU-IN SW ON cannot be detected within
10 seconds, the slide motor is stopped, and the following error indication appears. Press the POWER button to end the test
mode, or press the STOP button to return to step 1. Any other operations are inhibited.
TEST MODE
The test mode applied to this microcomputer has three modes, namely ordinary test mode to be used for adjustment or
measurement, aging test mode to be used for aging test, and self-diagnosis test mode for self-inspection in case of final product
inspection.
The test mode specification prescribes the microcomputer with RDS (RH-IX0026SJZZ) . There are two types of indication
examples; large ones for the microcomputer with RDS, and smaller ones for the microcomputer without RDS.
1.  Turning on the test mode
To turn on the specific test mode, press the POWER button, holding down the following two buttons in the ordinary stand-by
mode (power off state). In this case only the main unit button is valid. Even when the POWER of remote control button is set
to on, the test mode is not turned on.
[Ordinary test mode]
1. CD  Test Mode (TEST 1)…………………… Volume/JOG Dial Selector + FF/FWD
2. Tuner Test Mode (TEST 2)………………… Volume/JOG Dial Selector + Volume Select
3. Electronic volume Test Mode (TEST 3)…… REW/REV + FF/FWD
4. Timer Test Mode (TEST 4)………………… FUNCTION + Volume Select
5. LCD Test Mode (TEST 5)…………………… FUNCTION + FF/FWD
REW/REV + Volume Select
[Self-diagnosis Test Mode]
1.  Button input diagnosis test mode (TEST6).…
– 15 –
XL-60H/70H
The time display indicates always "0:00".
When the following buttons are pressed in this state, the operation is executed as follows.
"POWER" ................ The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................ The pickup slides toward the outer periphery while this button is held down.
"REW/REV" ............. The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY" ..................... Shift to step 5
"STOP" .................... Return to step 1
"REC PAUSE" ......... Shift to step 5
*If the focus is disturbed, the process returns to step 1.
4. Step 4 Mode
The CLV servo ON command (8600) sending operation is performed, and the next button input is waited. (The disc is rotated
to perform CLV locking.)
When the following operation buttons are pressed in this state, the operation is executed as follows.
"POWER" ................ The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................ The pickup slides toward the outer periphery while this button is held down.
"REW/REV" ............. The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY" ..................... If the focus has been set, shift to step 4 is executed. If the focus has not been set, acceptance is inhibited.
"STOP" .................... Return to step 1
"REC PAUSE" ......... Shift to step 5
*If the focus is disturbed after it has been set, the process returns to step 1.
3. Step 3 Mode
The laser is kept lighting. The processing (until turning-on of CLV servo of CD initialization operation flow) is executed, and
the next button input is waited. (The focus servo is turned on, and focus search is performed.)
The focus search is repeated until the focus is set.
If the following buttons are pressed in this state, the operation is performed as follows.
"POWER" ................ The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................ The pickup slides toward the outer periphery while this button is held down.
"REW/REV" ............. The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY" ..................... Shift to step 3
"STOP" .................... Return to step 1
"REC PAUSE" ......... Shift to step 5
2. Step 2 Mode
When the "PLAY" button is pressed in this mode, the laser lighting command LDON (8400) is sent, and the laser is turned on.
Other operations are not performed.
XL-60H/70H
– 16 –
3. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
    The tuner test mode is intended to store the adjustment and measurement frequencies in the preset memory CH without
frequency setting by adjusting personnel when the tuner section is adjusted in the production line.
2. Details of tuner test mode
    When the power is turned on by using the "POWER" button while the "Volume/JOG Dial Selector" and "Volume Select"
buttons are held down in POWER OFF state, the frequency for adjustment and measurement of destination specified by the
AREA terminal is preset and stored in the preset memory CH. However, Ordinary 1 and Ordinary 2 are set to the designation
(destination selected by SPAN switching operation) set when the test mode is set. (As for frequencies to be preset and stored
for each destination, refer to item 3.)
    The tuner test mode is started from preset No.1.
    The operations of test mode are identical with the ordinary operations of TUNER function. However, FUNCTION switching
is invalid.
     Since it is necessary to discard the content of preset memory when the tuner test mode is ended, "0000" or "1111" bits are
written in the memory to be checked in case of memory check (in case of initial setting) so that memory abnormality is detected
in case of initial setting so as to ensure memory initialization.
When the tuner test mode is turned on, the following indication lights for one second.
• The TUNER TEST2 mode is set as a result of Volume Select + POWER. -> IF AC is set to OFF in the TEST2 mode, the initial
state is restored.
When POWER is set to OFF, the memory of TEST2 mode is protected.
When the power is turned on again, the ordinary operation is enabled while the data is stored in the
memory (besides TUNER).
If AC OFF state is maintained in this state for about 1/2 day, start is executed in the initial state.
• To clear the whole memory, insert the AC cord, holding down MEMORY + PLAY.
When the following operation buttons are pressed in this sate, the operation is executed as follows.
"POWER" ................. The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................. The pickup slides toward the outer periphery while this button is held down.
"REW/REV" .............. The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY" ..................... Invalid
"STOP" ..................... Return to step 1
*If the focus is disturbed, the process returns to step 1.
Other cautions
• TOC IL is not executed in the test mode.
• As for button operations other than those shown above, only the sound volume operation (with JOG) is accepted.
5. Step 5 Mode
The CD initialization operation flow is executed to the end, the mute is set to off, and playback is started. Even when the
playback reaches the outermost periphery of disc, the operation does not stop. The LCD display indicates the playback past
time as in case of ordinary CD playback.
– 17 –
XL-60H/70H
4. ASPM TEST Mode
When the ASPM button is pressed, the test mode is set. It starts up at FM 106.50 MHz. (ST mode)
Data of 27 CH of 04 to 30 CH are all stored at FM 87.50 MHz (ST).
01 to 03CH are kept empty (If data of 3 CH are stored, max. 30 CH is filled.)
When the ASPM button is operated in the TEST mode 3, the preset data is cleared (overwrite).
A) Operation with ASPM button
Press the "ASPM" button or hold it down. (Any button other than ASPM button cancels the ASPM test mode.)
FM 105.00 MHz (ST) is indicated, and scan is started.
(Start from 105.00 MHz)
During scanning the frequency is indicated.
End at FM 108.00 MHz (ST)
Only the number of preset and stored stations (number of CHs: max. 3 stations) is indicated for one second in the ASPM test
mode. When two stations are stored, "_2 MEMORY" is indicated (lighted)for one second.
                                                                              ("02 MEMORY" indication is not given.)
"END" is not indicated
01CH indication (for one second)
Frequency indication (for one second)
02CH indication (for one second)
Frequency indication (for one second)
03CH indication (for one second)
Frequency indication (for one second)
After indication of continuous time series for one second the indication of FM 106.50 MHz (ST) is restored.
(The preset button is not pressed. The time series is indicated automatically, and the content of memory is indicated.)
* PS name is not indicated (while the content of memory is checked)
* If only 1 CH data is stored, FM P-01 -> FM 106.00 MHz -> FM 106.50 MHz (ST)
                     (An example)        (1 sec)         (1 sec) (ST)       End indication
When the ASPM button is pressed once in the TUNER TEST
mode, the indication FM 106.50 MHz (ST) appears, and data
of 04 to 30 CH are stored at 87.50 MHz (ST). When the ASPM
button is operated again, the ASPM test operation mode is
set.
In case of "_0 MEMORY" the process ends, and the
FM 106.50 MHz (ST) state is resumed.
Confirmation of content of memory
(Examples of concrete indication)
(An example)
FM P-01
FM 105.50MHz(ST)
FM P-02
FM 106.50MHz(ST)
FM P-03
FM 107.50MHz(ST)
Not in zero-memory state
3. Preset frequencies for various destinations (random preset memory)
• The hatched sections of the table are not stored in 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  522 kHz
7
AM1620 kHz
8
AM
AM  990 kHz
9
AM  603 kHz
10
AM1404 kHz
11-15
LW
Europe 2, 4
CH
Page of 7
Display

Sharp XL-70 (serv.man6) Service Manual ▷ Download

  • DOWNLOAD Sharp XL-70 (serv.man6) Service Manual ↓ Size: 72.5 KB | Pages: 7 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp XL-70 (serv.man6) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp XL-70 (serv.man6) System. Information contained in Sharp XL-70 (serv.man6) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.