Sony MHC-S3 / TA-S3 Service Manual ▷ View online
5
TA-S3
• This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
3-2. COVER
(Page 6)
3-3. FRONT PANEL SECTION
(Page 6)
3-4. BACK PANEL (2CH/VCD) SECTION
(Page 7)
3-5. FRONT AMP BOARD
(Page 7)
SET
Note 1: The process described in can be performed in any order.
Note 2: Without completing the process described in , the next process can not be performed.
6
TA-S3
3-3.
FRONT PANEL SECTION
Note:
Follow the disassembly procedure in the numerical order given.
3-2.
COVER
2
two screws
(case 3 TP2)
(case 3 TP2)
2
two screws
(case 3 TP2)
(case 3 TP2)
1
three screws
(BVTT3
(BVTT3
×
6)
4
Remove the cover
in the direction of arrow
in the direction of arrow
A
.
A
3
3
4
three screws
(BVTP3
(BVTP3
×
8)
2
screw
(BVTP3
(BVTP3
×
8)
6
front panel section
5
two
claws
claws
5
two claws
5
claw
3
lug
1
wire (flat type) (23 core)
(CN104)
(CN104)
3
lug
3
lug
2
screw
(BVTP3
(BVTP3
×
8)
2
screw
(BVTP3
(BVTP3
×
8)
7
TA-S3
3-4.
BACK PANEL (2CH/VCD) SECTION
3-5.
FRONT AMP BOARD
5
three screws
(BVTP3
(BVTP3
×
8)
5
two screws
(BVTP3
(BVTP3
×
8)
5
four screws
(BVTP3
(BVTP3
×
8)
4
RELAY board
3
connector
(CN106)
(CN106)
6
connector
(CN105)
(CN105)
7
three connectors
(CN901, 902, 903)
(CN901, 902, 903)
1
screw
(BVTP3
(BVTP3
×
8)
8
back panel (2CH/VCD) section
6
1
screw
(BVTP3
(BVTP3
×
8)
2
lug
3
screw
(BVTP3
(BVTP3
×
8)
2
two screws
(BVTT3
(BVTT3
×
8)
5
Remove the FRONT AMP board
in the direction of the arrow.
in the direction of the arrow.
4
PC board holder
1
three connector
(CN913, 914, 915)
(CN913, 914, 915)
4
PC board holder
8
TA-S3
[GC Test Mode]
Enter the GC Test Mode
Procedure 1:
1. Press the
1. Press the
I
/1
button to turn the power on.
2. While pressing the both
[STEREO/MONO]
*
1
and
[2CH/
MULTI C]
buttons, press the
[CLOCK/TIMER]
*
1
button.
3. LEDs and fluorescent indicator tube are all turned on of all
units.
Procedure 2:
1. Press the
1. Press the
I
/1
button to turn the power on.
2. While pressing the both
[PLAY MODE]
*
2
and
x
*
2
buttons,
press the
Z
(DISC 1) *
2
button.
3. LEDs and fluorescent indicator tube are all turned on of all
units.
Version Display Mode
Procedure:
1. Enter the GC test mode.
2. Each time the
1. Enter the GC test mode.
2. Each time the
[TUNER MEMORY]
*
1
or
[DISC 1]
*
2
button is
pressed, microcomputer or mechanism deck version is dis-
played of each unit.
played of each unit.
3. Press the
[TUNING +]
*
1
or
[DISC 3]
*
2
button to detail is
displayed the version.
Key Check Mode
Procedure:
1. Enter the GC test mode.
2. Press the
1. Enter the GC test mode.
2. Press the
[TUNING --]
*
1
or
[DISC 2]
*
2
button to set the key
check mode.
3. In the key check mode, the fluorescent indicator tube displays
“K 0 J 0 V 0”. Each time a button is pressed, “K” value in-
creases. However, once a button is pressed, it is no longer taken
into account.
“J” value increases like 1, 2, 3 ... if turn the
creases. However, once a button is pressed, it is no longer taken
into account.
“J” value increases like 1, 2, 3 ... if turn the
[FILE SELECT]
knob clockwise, or it decreases like 0, 9, 8 ... if turn the JOG
dial counterclockwise.
“V” value increases like 1, 2, 3 ... if turn the
dial counterclockwise.
“V” value increases like 1, 2, 3 ... if turn the
[VOLUME]
knob
clockwise, or it decreases like 0, 9, 8 ... if turn the JOG dial
counterclockwise.
counterclockwise.
Releasing the GC Test Mode
To release from this mode, press three buttons in the same manner
as entering this mode or disconnect the power cord.
as entering this mode or disconnect the power cord.
SECTION 4
TEST MODE
Note:
Use following buttons in the test mode.
no mark : Button of amplifier unit (TA-S3)
*1
no mark : Button of amplifier unit (TA-S3)
*1
: Button of tuner unit (ST-S3)
*2
: Button of CD unit (CDP-S3)
[MC Test Mode]
Enter the MC Test Mode
1. Press the
I
/1
button to turn the power on.
2. While pressing the both
[STEREO/MONO]
*
1
and
[2CH/
MULTI C]
buttons, press the
[MUSIC MODE A]
button.
3. “GROOVE” indication blinks on the fluorescent indicator tube
in the midst of MC test mode.
4. This mode has two modes (mode 1/mode 2).
5. To change the modes, press three buttons in the same manner
5. To change the modes, press three buttons in the same manner
as entering this mode (step 2). Each time the step 2 operation
is repeated, it changes modes alternately.
is repeated, it changes modes alternately.
6. To distinguish the mode, turn the
[VOLUME]
knob clockwise
or counterclockwise. Then display is shown as follows.
Mode 1: only “MIN” or “MAX”
Mode 2: “MIN”, “1 to 30” or “MAX”
Mode 2: “MIN”, “1 to 30” or “MAX”
Releasing the MC Test Mode
To release from this mode, press the
I
/1
button or disconnect the
power cord.
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