Sony SLV-KA177PK / SLV-KA177PL / SLV-KA200PL / SLV-KF300PL / SLV-XA127PK / SLV-XA127PL / SLV-XF247PL Service Manual ▷ View online
6-2
2-1-5.
Specified I/O Level and Impedance
Input/output terminal
Video inputs
LINE IN
: phono jack
1 Vp-p, 75
Ω
, unbalanced, sync negative
Audio inputs
LINE IN
: phono jacks
47 k
Ω
, –7.5 dBs (0 dBs = 0.775 Vrms)
More than 10 k
Ω
, –4 dBs
Video outputs
LINE OUT : phono jack
1 Vp-p, 75
1 Vp-p, 75
Ω
, unbalanced, sync negative
Audio outputs
LINE OUT : phono jacks
–7.5 dBs at load impedance 47 k
–7.5 dBs at load impedance 47 k
Ω
Output impedance : less than 10
Ω
2-1-6.
Adjusting Sequence
Make the electrical adjustment in the following sequence.
2-3. SERVO/VIDEO SYSTEM ADJUSTMENTS
2-3-1.
Switching Position Adjustment (MA-308 Board)
Purpose:
Adjust the interval between A ch and B ch of tape playback output.
Improve the interchangeability with other tapes and sets.
When it is out of order, the interval appears on the screen, the screen
is disturbed.
Improve the interchangeability with other tapes and sets.
When it is out of order, the interval appears on the screen, the screen
is disturbed.
Mode
PB
Signal
Alignment tape
CH1 : CNJ351 VIDEO LINE OUT
CH1 : CNJ351 VIDEO LINE OUT
Measurement Point
CH2 : Pin 3 of CN202
(MA-308 board)
(V SWP)
(MA-308 board)
(V SWP)
Measuring Instrument
Oscilloscope
Adjusting Element
RV401
Specified Value
6.5
±
1H (413
±
60
µ
sec)
Adjusting Method:
1)
Play back the alignment tape.
2)
Short Pin 1 and 2 of CN406.
3)
Check that switching position is 6.5
±
1H.
If not meet the specified value, turn RV401 and repeat steps 1
to 3).
to 3).
Checking power supply
Servo/Video system adjustment
Audio system adjustment
2-2. POWER SUPPLY CHECK (MA-308 BOARD)
Mode
E-E
Measuring Instrument
Digital voltmeter
+12 V check
Measurement Point
Measurement Point
Pin 4 of CN404
Specified Value
11.5V ~ 13.0V
+5 V check
Measurement Point
Measurement Point
Pin 8 of CN404
Specified Value
5V ~ 5.6V
+9 V check (EXCEPT XA127)
Measurement Point
Measurement Point
Emitter of Q961
Specified Value
8.5V ~ 10V
MTR12V check
Measurement Point
Measurement Point
Pin 4 of CN402
Specified Value
11.5V ~ 13.0V
Checking Method:
1)
Confirm that each voltage meets its specified value.
CH1
CH2
CH1
CH2
6.5
±
0.5 H
(413
±
60
µ
sec)
Vertical sync. signal
enlargement
V
Approx. 5 Vp-p
Approx. 2 Vp-p
(Pin
3
of CN202)
Fig. 6-2-3
6-3
6-4 E
2-4. AUDIO SYSTEM ADJUSTMENTS
• Adjust both Lch and Rch.
[Connection]
Fig. 6-2-4.
2-4-1.
Hi-Fi Audio System Adjustment
(Hi-Fi model only)
(Hi-Fi model only)
• Set switches and knobs to the following positions to make
adjustment unless otherwise specified.
AUDIO MONITOR ......................... STEREO
AUDIO MONITOR ......................... STEREO
Audio
generator
generator
Attenuator
600
Ω
47 k
Ω
VCR
Audiolevel meter or
distortion meter
AUDIO LINE OUT
AUDIO LINE IN
Feed signal both
channelssimultaneously.
Feed signal both
channelssimultaneously.
1.
AF Switching Position Adjustment (MA-308 Board)
Purpose:
Adjust the interval between A CH and B CH of tape playback output.
Improve the interchangeability with other tapes and sets.
When it is out of order, noisy sound is increased and big noise is
heard.
Improve the interchangeability with other tapes and sets.
When it is out of order, noisy sound is increased and big noise is
heard.
Adjusting Method:
1)
Play back the alignment tape.
2)
Short Pin 1 and 2 of CN406
3)
Adjust RV402 so that minimize a chipped portion. At this time,
confirm that a noisy sound is not heard.
confirm that a noisy sound is not heard.
Mode
PB
Signal
Alignment tape SP mode
color bar
color bar
Measurement point
CH1: Pin 3 of CN202
(MA-308 Board)
CH2: Pin 1 of CN651
(MA-308 Board)
(MA-308 Board)
CH2: Pin 1 of CN651
(MA-308 Board)
Measuring Instrument
Oscilloscope
Adjusting Element
RV402
Specified Value
Fig. 6-2-11
OK
NG
CH1
RF SWP
RF SWP
Fig. 6-2-5.
CH2
REC AFM
REC AFM
2-4-2.
Normal Audio System Adjustment
• Make adjustment in the SP mode, unless otherwise specified.
Use a normal VHS cassette for an adjustment tape.
• Set AUDIO MONITOR to normal.
[Adjustment Sequence]
1. ACE Head Adjustment
2. E-E Output Level Check
3. Recording Bias Adjustment
1. ACE Head Adjustment
2. E-E Output Level Check
3. Recording Bias Adjustment
1. ACE Head Adjustment
Refer to the service manual of VHS MECHANICAL
ADJUSTMENT VI.
ADJUSTMENT VI.
2. E-E Output Level Check
Purpose:
Purpose:
Confirm that the output level against the reference input is within
the specification.
the specification.
Confirmation Method:
1)
Simultaneously input a signal of 400 Hz, –7.5 dBs to both L
and R channels of Audio Line Input.
and R channels of Audio Line Input.
2)
Confirm that the audio output level is –7.5 ± 2 dBs.
3.
Recording Bias Check
Purpose:
Confirm that the frequency characteristic is within the specification.
Note:
Tape path adjustment must have been completed.
Confirmation Method:
1)
Supply a signal of 400 Hz, –27.5 dBs to both L and R channels
of Audio Line Input.
of Audio Line Input.
2)
Connect the audio level meter to the Audio Line Output.
3)
Adjust the attenuator so that the audio level meter will indicate
–27.5 dBs.
–27.5 dBs.
4)
Make recording in the SP mode.
5)
Set an audio line input signal to 7 kHz and make recording.
6)
Playback a recorded portion, and measure output levels at 400
Hz and 7 kHz.
Hz and 7 kHz.
7)
Confirm that the 7 kHz playback output level within a range of
the 400 Hz playback output level 0 ± 3 dB.
the 400 Hz playback output level 0 ± 3 dB.
Mode
E-E
Signal
L, R: 400 Hz, –7.5 dBs
Measurement point
Audio output terminal
Measurement equipment
Audio level meter
Specified value
–7.5 ± 2 dBs
Mode
REC and PB (SP mode)
Signal
400 Hz, –27.5 dBs
7 kHz, –27.5 dBs
7 kHz, –27.5 dBs
Measurement point
Audio output terminal
Measurement equipment
Audio level meter
Specified value
0 ± 3 dB
2-5. PARTS ARRANGEMENT DIAGRAM FOR ADJUSTMENTS
MA-308 BOARD (Side A)
1
4
1
2
CN202
CN651
CN402
RV401
RV402
CN404
CN406
1
2
1
23
V SWP
AF SWP
1
7
Q961
B
E
C
(Side B)
7-1
7-2
SECTION 7
REPAIR PARTS LIST
7-1.
EXPLODED VIEWS
NOTE:
• -XX and -X mean standardized parts, so they may
have some difference from the original one.
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and packing
materials are given in the last of the electrical parts
list.
list.
The components identified by mark
! or dotted line with mark ! are
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
7-1-1.
FRONT PANEL AND CABINET ASSEMBLIES
18
19
14
10
10
9
8
13
17
16
13
7
6
1
2
3
4
5
12
11
13
15
15
not supplied
not supplied
not supplied
not supplied
KA177/KA200PL /
KF300PL model
KF300PL model
KA200PL /KF300PL /
XF247PL model
XF247PL model
1
X-3946-598-1 BUTTON ASSY, FUNCTION
2
X-3947-951-1 PANEL ASSY, FRONT (XF247PL)
2
X-3947-952-1 PANEL ASSY, FRONT (KA177PL)
2
X-3947-953-1 PANEL ASSY, FRONT (XA127PL)
2
X-3947-988-1 PANEL ASSY, FRONT (KA200PL)
2
X-3947-989-1 PANEL ASSY, FRONT (KF300PL)
2
X-3948-04551 PANEL ASSY, FRONT (XA127PK)
2
X-3948-049-1 PANEL ASSY, FRONT (KA177PK)
3
3-943-995-01 EMBLEM (NO.5), SONY
4
3-953-432-01 SPRING (GE), FL
5
3-978-043-01 DOOR, CASSETTE (KF300PL)
5
3-978-043-21 DOOR, CASSETTE (XF247PL)
5
3-978-043-31 DOOR, CASSETTE (XA127)
5
3-978-043-41 DOOR, CASSETTE (KA177/KA200PL)
* 6
3-977-160-01 INSULATOR
* 7
A-6794-474-A FR-124 BOARD, COMPLETE
(KA177PK/XA127PK)
* 7
A-6794-405-A FR124 BOARD, COMPLETE
(EXCEPT KA177PK/XA127PK)
* 8
A-6794-406-A MJ-85 BOARD, COMPLETE
(KA200PL/KF300PL)
* 8
A-6794-442-A MJ-85 BOARD, COMPLETE (KA177PL)
* 8
A-6794-477-A MJ-85 BOARD, COMPLETE (KA177PK)
9
3-964-584-21 KNOB, VOL (KA177/KA200PL/KF300PL)
* 10
3-950-963-01 KNOB, SELECTION (EXCEPT XA127)
* 11
A-6794-407-A AV-39 BOARD, COMPLETE (XF247PL)
* 11
A-6794-424-A AV-39 BOARD, COMPLETE
(KA200PL/KF300PL)
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
12
1-782-760-11 CABLE, FLAT (FFM-19) 13P
(KA200PL/KF300PL/XF247PL)
13
4-921-277-41 SCREW (B2.6X8), TAPPING, BIND
* 14
3-978-071-01 CASE, UPPER (EXCEPT KA177PK/XA127PK)
* 14
3-978-071-11 CASE, UPPER (KA177PK/XA127PK)
15
3-710-901-11 SCREW, TAPPING
* 16
A-6794-441-A FR-123 BOARD, COMPLETE (XF247PL)
* 16
A-6794-443-A FR-123 BOARD, COMPLETE (KA177PL)
* 16
A-6794-444-A FR-123 BOARD, COMPLETE (XA127PL)
* 16
A-6794-466-A FR-123 BOARD, COMPLETE (KA200PL)
* 16
A-6794-467-A FR-123 BOARD, COMPLETE (KF300PL)
* 16
A-6794-476-A FR-123 BOARD, COMPLETE (XA127PK)
* 16
A-6794-478-A FR-123 BOARD, COMPLETE (KA177PK)
17
1-782-759-11 CABLE, FLAT (FFR-4) 23P
(KA177/KA200PL/KF300PL/XF247PL)
17
1-782-761-11 CABLE, FLAT (FFR-5) 13P (XA127)
18
1-475-290-11 COMMANDER, STANDARD (RMT-V212)
(KA177PL/XA127PL)
18
1-475-290-21 COMMANDER, STANDARD (RMT-V212A)
(KA200PL/KF300PL/XF247PL)
18
1-475-290-51 COMMANDER, STANDARD (RMT-V212)
(KA177PK/XA127PK)
19
3-709-269-01 COVER, BATTERY (for RMT-V212,V212A)
20
3-977-161-01 KNOB, SELECTION
(KA200PL/KF300PL/XF247PL)
SLV-KA177/KA200/KF300/XA127/XF247
53
51
51
52
55
56
57
52
52
54
52
not supplied
not supplied
#1
#1
#1
#1
not supplied
not
supplied
supplied
(KA200PL/KF300PL model)
KA200/
KF300
model
KF300
model
7-1-2.
CHASSIS ASSEMBLY
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
The components identified by mark
! or dot-
ted line with mark
! are critical for safety.
Replace only with part number specified.
7-1-3.
MECHANISM DECK-1
701
702
703
704
705
723
722
720
721
706
707
710
712
711
724
713
714
715
716
717
719
718
709
708
701
725
726
#3
KA200PL/
KF300PL/
XF247PL model
KF300PL/
XF247PL model
#3
701
3-977-509-01 WASHER, THRUST
702
3-977-507-01 TABLE, REEL (S) (GRAY)
703
3-977-508-01 TABLE, REEL (T) (BLACK)
704
1-500-144-11 HEAD, FE (KA200PL/KF300PL/XF247PL)
705
3-977-495-01 SHAFT TG2
706
3-977-494-01 HOLDER, FEH
707
A-6759-619-C FL COMPLETE ASSY
708
3-977-535-01 PLATE, LUMINOUS(END SENSOR)
709
3-977-536-01 PLATE, LUMINOUS(TOP SENSOR)
710
3-970-471-01 SPRING (DECK OPEN), TORSION
711
A-6759-615-A PRESS BLOCK ASSY, PINCH
712
3-958-455-01 SPRING (PINCH), TENSION
713
3-977-447-01 GEAR, ELEVATOR
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
714
3-977-514-01 OPENER, LID
715
3-977-441-01 GEAR, PINCH PRESSING
716
3-977-445-01 GEAR, TG8 ARM DRIVING
717
3-977-465-01 SPRING,EXTENSION(RVS BRAKE)
718
X-3947-582-1 ARM ASSY, RVS BRAKE
719
3-977-446-01 GEAR, TG8 ARM
720
X-3947-590-1 TG8 ASSY
721
A-6759-620-A HEAD BLOCK ASSY, ACE (TDK)
722
3-974-556-01 + HEXA TT 2.6X9 (TAPER)
723
3-979-508-01 SCREW + HEXA TP SW 3X8
724
3-978-485-01 PLATE, GUIDE CASSETTE
725
X-3947-568-1 TC (N17S) ASSY
726
3-979-112-01 + PSW (SMALL CIRCLE) 3X10
7-3
7-4
* 51
3-959-383-01 BASE (R), MD
52
3-970-608-21 SUMITITE (B3), +BV
53
1-782-758-11 CABLE, FLAT (FDM-2) 7P
* 54
A-6791-397-A MA-308 BOARD, COMPLETE (XF247PL)
* 54
A-6791-398-A MA-308 BOARD, COMPLETE (KA177PL)
* 54
A-6791-399-A MA-308 BOARD, COMPLETE (XA127PL)
* 54
A-6791-405-A MA-308 BOARD, COMPLETE (KA200PL)
* 54
A-6791-406-A MA-308 BOARD, COMPLETE (KF300PL)
* 54
A-6791-416-A MA-308 BOARD, COMPLETE (XA127PK)
* 54
A-6791-417-A MA-308 BOARD, COMPLETE (KA177PK)
* 55
A-6794-422-A SR-28 BOARD, COMPLETE
(KA200PL/KF300PL)
! 56
1-777-956-11 CORD, POWER
* 57
3-978-072-41 PANEL, REAR (KF300PL/XF247PL)
* 57
3-978-072-51 PANEL, REAR (KA177PL/XA127PL)
* 57
3-978-072-61 PANEL, REAR (KA200PL)
* 57
3-978-072-71 PANEL, REAR (KA177PK/XA127PK)
Click on the first or last page to see other SLV-KA177PK / SLV-KA177PL / SLV-KA200PL / SLV-KF300PL / SLV-XA127PK / SLV-XA127PL / SLV-XF247PL service manuals if exist.