DOWNLOAD Sony MHC-S9D / TC-S9 Service Manual ↓ Size: 2.44 MB | Pages: 28 in PDF or view online for FREE

Model
MHC-S9D TC-S9
Pages
28
Size
2.44 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
mhc-s9d-tc-s9.pdf
Date

Sony MHC-S9D / TC-S9 Service Manual ▷ View online

TC-S9
6
3-3.
MAIN  BOARD
3-4.
FRONT  PANEL  SECTION
2
connector
(CN1)
5
MAIN board
1
wire (flat type) (17 core)
(CN311)
2
three connectors
(CN309, 310, 314)
3
three screws
(BVTP3 
×
 8)
3
screw
(BVTP3 
×
 8)
4
PC board holder
2
connector
(CN2)
7
front panel section
2
connector
(CN1)
3
screw
(BVTP3 
×
 8)
2
connector
(CN314)
1
wire (flat type) (17 core)
(CN311)
4
lug
6
two claws
2
connector
(CN2)
6
three claws
5
three screws
(BVTP3 
×
 8)
TC-S9
7
3-5.
TAPE  MECHANISM  DECK (TCM-230AWR41,  TCM-230MWR41)
2
five screws
(BVTP2.6 
×
 8)
4
tape mechanism deck
(TCM-230AWR41, TCM-230MWR41)
1
Open the 
cassette holder (L)/(R).
3
lug
3-6.
LEAF  SW  BOARD,  HEAD (A)  BOARD  AND  HEAD (B)  BOARD
6
screw (+PTT 2
 
×
 4)
4
screw (+PTT 2
 
×
 4)
3
LEAF SW board
2
five claws
5
head (A) board
7
head (B) board
1
Remove the four solderings.
8
TC-S9
SECTION  4
TEST  MODE
Note:
Use following buttons in the test mode.
no mark : Button of Tape unit (TC-S9)
*1
: Button of amplifier unit (TA-S9D)
*2
: Button of DVD/video CD/CD unit (DVP-S9)
[MC Test  Mode]
Enter the MC Test Mode
Procedure:
1. Press the 
I
/
1
 *
1
 button to turn the power on.
2. While pressing the both 
[PLAY MODE]
*
2
 and 
[   ]
*
2
 buttons,
press the 
[DISC 3]
*
2
 button.
3. “GROOVE” indication blinks on the fluorescent indicator tube
in the midst of MC test mode.
Releasing the MC Test Mode
To release from this mode, press the 
I
/
1
 *
1
 button or disconnect
the power cord.
[DECK Test  Mode]
In the DECK test mode, it operates as follows.
Cancellation of the linear mute of DOLBY IC (IC301)
• It become cancellation automatically when it is possible to en-
ter a MC test mode.
AMS Checking
Procedure:
1. Enter the MC test mode.
2. Insert a test tape AMS-110A or AMS-120 to Deck A.
3. Set TAPE A function.
4. Press the 
[DVD SYNC]
 button to enter the AMS test mode.
5. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the ASM signal twice.
6. Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.
7. When the check is complete, a message of either OK or NG
appears.
(To check an AMS of the B deck, select TAPE B function.
After that, press 
[DVD SYNC]
.)
x
ALC Checking
Procedure:
1. Enter the MC test mode.
2. Insert a tape into Deck B.
3. During Recording, Keep holding down the below keys.
[   ]
*
2
 + 
[REC PAUSE/START]
ALC could keep ON while these keys keep being pressed, ALC
could keep OFF while keys are released.
Double Speed REC Mode
Procedure:
1. Enter the MC test mode
2. Insert a tape into Deck B.
3. During Recording, keep holding down the below key.
[HI-DUB]
Double speed recording is going on while the key keeps being
pressed.
REC/PLAY Checking
• The mode to PLAY by rewinding recording contents automati-
cally.
Procedure:
1. If recording A surface, it returns automatically at the point of
the recording beginning and it replays when pressing
TAPE B 
[     ]
.
2. If recording B surface, it returns automatically at the point of
the recording beginning and it replays when pressing
TAPE B 
[     ]
.
x
M
m
9
TC-S9
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
0 dB=0.775 V
DECK  SECTION
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in
this service manual.  (As a general rule, playback circuit ad-
justment should be completed before performing recording
circuit adjustment.)
6. The adjustments should be performed for both L-CH and R-
CH.
7. Switches and controls should be set as follows unless other-
wise specified.
8. Please refer to “SERVICING NOTES” (page 3) before adjust-
ments.
• Test Tape
Tape
Signal
Used for
P-4-A100
10 kHz, –10 dB
Azimuth Adjustment
WS-48B
3 kHz, 0 dB
Tape Speed Adjustment
P-4-L300J
315 Hz, 0 dB
Level Adjustment
DECK A      DECK B
Record/Playback Head Azimuth Adjustment
Note:
  Perform this adjustments for both decks
Procedure:
1. Mode:  Playback
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads
pinch rollers
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head demagne-
tizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
set
ST-S9
test tape
P-4-A100
(10 kHz, –10 dB)
+
level meter
MD OUT jack
(J601)
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.96 N • m to 14.02 N • m
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
9.80 N • m
100 g or more
(3.53 oz or more)
9.80 N • m
100 g or more
(3.53 oz or more)
Mode
Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
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