Sony SLV-ED22KR / SLV-ED22PL / SLV-ED22TW / SLV-ED55KR / SLV-ED55PL / SLV-ED88TW / SLV-ED99KR / SLV-ED99PL / SLV-ED99TW Service Manual ▷ View online
7-4
3. Overall Level Characteristic and Distortion Factor
Check
Purpose:
Check the record level, play level, and distortion factor against the
reference input.
Check the record level, play level, and distortion factor against the
reference input.
Mode
REC and PB (SP mode)
Signal
400 Hz, –7.5 dBs
Measurement point
Audio output terminal
Measurement equipment
Audio level meter and
distortion factor meter
distortion factor meter
Specified value
Playback level: –7.5 ± 2.0 dBs
Distortion factor: 1% or less
Distortion factor: 1% or less
Confirmation Method:
1) Supply an audio signal of 400 Hz, –7.5 dBs simultaneously to
1) Supply an audio signal of 400 Hz, –7.5 dBs simultaneously to
both L and R channels of Audio Line Input.
2) Make recording
3) Play back a recorded portion.
4) Confirm that a playback level is –7.5 ±2.0 dBs.
5) Confirm that a distortion factor is within 1%.
3) Play back a recorded portion.
4) Confirm that a playback level is –7.5 ±2.0 dBs.
5) Confirm that a distortion factor is within 1%.
4. Overall S/N Check
Purpose:
Confirm that the S/N is within the specification.
Confirm that the S/N is within the specification.
Mode
REC and PB (SP mode)
Signal
Short
Measurement point
Audio output terminal
Measurement equipment
Audio noise meter
Specified value
–67.5 dBs or less
Confirmation Method:
1) Connect both L and R channels of audio line input to the GND.
2) Start recording.
3) Play the recorded part to confirm that the noise is below –67.5
1) Connect both L and R channels of audio line input to the GND.
2) Start recording.
3) Play the recorded part to confirm that the noise is below –67.5
dBs.
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. Frequency Response Check
4. Overall Level Characteristic and Distortion Factor
1. ACE Head Adjustment
2. E-E Output Level Check
3. Frequency Response Check
4. Overall Level Characteristic and Distortion Factor
Check
5. Overall S/N Check
1. ACE Head Adjustment
Refer to the SERVICE MANUAL of VHS MECHANICAL AD-
JUSTMENT VI.
JUSTMENT VI.
2. E-E Output Level Check
Purpose:
Confirm that the output level against the reference input is within
the specification.
Confirm that the output level against the reference input is within
the specification.
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 ± 2.0 dBs
Confirmation Method:
1) Simultaneously input a signal of 400 Hz, –7.5 dBs to both L
1) Simultaneously input a signal of 400 Hz, –7.5 dBs to both L
and R channels of Audio Line Input.
2) Confirm that the audio output level is –7.5 ± 2.0 dBs.
(This level only can appear with mono models)
(This level only can appear with mono models)
3. Frequency Response Check
Purpose:
Confirm that the frequency characteristic is within the specifica-
tion.
Confirm that the frequency characteristic is within the specifica-
tion.
Mode
REC and PB (SP mode)
Signal
400 Hz, –17.5 dBs
7 kHz, –17.5 dBs
7 kHz, –17.5 dBs
Measurement point
Audio output terminal
Measurement equipment
Audio level meter
Specified value
0 ± 4 dB
Tape path adjustment must have been completed.
Confirmation Method:
1) Supply a signal of 400 Hz, –17.5 dBs to both L and R chan-
1) Supply a signal of 400 Hz, –17.5 dBs to both L and R chan-
nels 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 indi-
3) Adjust the attenuator so that the audio level meter will indi-
cate –17.5 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
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.
7) Confirm that the 7 kHz playback output level within a range
of the 400 Hz playback output level 0 ± 4 dB.
7-5
7-6 E
4. Overall Level Characteristic and Distortion Factor
Check
Purpose:
Check the record level, play level, and distortion factor against the
reference input.
Check the record level, play level, and distortion factor against the
reference input.
Mode
REC and PB (SP mode)
Signal
400 Hz, –7.5 dBs
Measurement point
Audio output terminal
Measurement equipment
Audio level meter and
distortion factor meter
distortion factor meter
Specified value
Playback level: –7.5 ± 4.0 dBs
Distortion factor: 4% or less
Distortion factor: 4% or less
Confirmation Method:
1) Supply an audio signal of 400 Hz, –7.5 dBs simultaneously to
1) Supply an audio signal of 400 Hz, –7.5 dBs simultaneously to
both L and R channels of Audio Line Input.
2) Make recording
3) Play back a recorded portion.
4) Confirm that a playback level is –7.5 ± 4.0 dBs. (mono audio)
5) Confirm that a distortion factor is less than 4%.
3) Play back a recorded portion.
4) Confirm that a playback level is –7.5 ± 4.0 dBs. (mono audio)
5) Confirm that a distortion factor is less than 4%.
5. Overall S/N Check
Purpose:
Confirm that the S/N is within the specification.
Confirm that the S/N is within the specification.
Mode
REC and PB (SP mode)
Signal
Short
Measurement point
Audio output terminal
Measurement equipment
Audio noise meter
Specified value
–46.0 dBs or less
Confirmation Method:
1) Connect both L and R channels of audio line input to the GND.
2) Start recording.
3) Play the recorded part to confirm that the noise is below –46.0
1) Connect both L and R channels of audio line input to the GND.
2) Start recording.
3) Play the recorded part to confirm that the noise is below –46.0
dBs.
2-6.
PARTS ARRANGEMENT DIAGRAM FOR ADJUSTMENTS
MA-377 BOARD (Component Side)
PSM17-501 BOARD (Conductor Side)
GK-12 BOARD (Side A)
2-5.
TUNER SYSTEM ADJUSTMENT
[Connection]
Fig. 7-2-6
2-5-1.
Separation Adjustment (SLV-ED88/ED99)
Purpose:
Mixed audio signal separate Lch and Rch.
Mixed audio signal separate Lch and Rch.
Mode
E-E
Signal
VIDEO:
color bar
(White 100% modulation)
AUDIO:
L NONE
R 1 kHz 60% modulation
ELECTRIC FIELD:
60–80 dBs/75
Ω
Term
Measurement point
Audio output terminal (SLV-
ED99KR)
Pin qs of IC701
(SLV-ED88/ED99: PL, TW)
ED99KR)
Pin qs of IC701
(SLV-ED88/ED99: PL, TW)
Measurement equipment
Audio level meter
Adjusting Element
RV001 (GK-12 Board)
(SLV-ED99KR)
RV701 (MA-377 board)
(SLV-ED88/ED99: PL, TW)
(SLV-ED99KR)
RV701 (MA-377 board)
(SLV-ED88/ED99: PL, TW)
Specified value
minimum (SLV-ED99KR)
–9.9 ± 0.2 dBm
(700 ± 14 mVp-p)
(SLV-ED88/ED99: PL, TW)
–9.9 ± 0.2 dBm
(700 ± 14 mVp-p)
(SLV-ED88/ED99: PL, TW)
47 k
Ω
VCR
Audio level
meter
meter
Up channel
convertor
convertor
RF IN
AUDIO LINE OUT
L
R
RV001
IC001
1
11
33
34
44
22
12
23
SEPARATION
1
2
19
18
CN102
CN202
RV701
IC701
JS401
13
1
1
4
SEPARATION
8-1
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 pack-
ing materials are given in the last of the electrical
parts list.
parts list.
SECTION 8
REPAIR PARTS LIST
8-1.
EXPLODED VIEWS
SLV-ED22/ED55/ED88/ED99
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number speci-
fied.
critical for safety.
Replace only with part number speci-
fied.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
8-1-1. FRONT PANEL AND CABINET ASSEMBLIES
1
X-3950-316-1 KNOB ASSY, ETR
2
3-055-077-01 SPRING, ETR (P5)
3
X-3950-291-1 PANEL ASSY, FRONT (ED22: KR, PL)
3
X-3950-292-1 PANEL ASSY, FRONT (ED55)
3
X-3950-293-1 PANEL ASSY, FRONT (ED99KR)
3
X-3950-294-1 PANEL ASSY, FRONT (ED99PL)
3
X-3950-896-1 PANEL ASSY, FRONT (ED99TW)
3
X-3950-898-1 PANEL ASSY, FRONT (ED88)
3
X-3950-899-1 PANEL ASSY, FRONT (ED22TW)
4
3-057-164-11 INSULATOR
5
3-943-995-31 EMBLEM (NO.5), SONY
6
3-953-432-01 SPRING (GE), FL
7
1-792-428-11 CABLE, FLAT (FDS-6)
* 8
A-6713-718-A DS-92 BOARD, COMPLETE
* 9
A-6713-717-A KK-24 BOARD, COMPLETE
10
4-921-277-41 SCREW (B2.6X8), TAPPING, BIND
* 11
A-6713-663-A FJ-26 BOARD, COMPLETE (ED99)
* 11
A-6713-671-A FJ-26 BOARD, COMPLETE (ED55)
12
3-057-165-01 PLATE, EARTH (ED55/ED99)
* 13
A-6713-719-A MF-321 BOARD, COMPLETE
14
1-792-427-11 CABLE, FLAT (FMF-39)
15
3-710-901-61 SCREW, TAPPING
16
3-057-168-41 CASE, UPPER
17
1-418-870-11 COMMANDER, STANDARD (RMT-V297)
(ED99KR)
17
1-418-870-21 COMMANDER, STANDARD (RMT-V297A)
(ED99PL)
17
1-418-872-11 COMMANDER, STANDARD (RMT-V299)
(ED22: KR, PL/ED55)
17
1-476-224-11 COMMANDER, STANDARD (RMT-V297D)
(ED99TW)
17
1-476-225-11 COMMANDER, STANDARD (RMT-V299C)
(ED22TW/ED88)
18
3-709-128-01 COVER, BATTERY
(for RMT-V297/V297A/V297D) (ED99)
18
3-709-129-01 COVER, BATTERY
(for RMT-V299/V299C) (ED22/ED55/ED88)
19
1-792-426-11 CABLE, FLAT (FKK-3)
20
1-792-430-11 CABLE, FLAT (FFJ-3) (ED55/ED99)
2
1
3
5
6
13
14
17
15
16
15
10
11 20
10
12
10
10
10
8
7
19
9
4
4
not
supplied
supplied
18
ED55/ED99
not
supplied
supplied
8-2
8-1-2. CHASSIS ASSEMBLY
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
3-979-314-01 BASE (R), MD
* 52
A-6713-706-A MA-377 BOARD, COMPLETE (ED22: KR, PL)
* 52
A-6713-707-A MA-377 BOARD, COMPLETE (ED55)
* 52
A-6713-713-A MA-377 BOARD, COMPLETE (ED99PL)
* 52
A-6713-716-A MA-377 BOARD, COMPLETE (ED99KR)
* 52
A-6713-755-A MA-377 BOARD, COMPLETE (ED99TW)
* 52
A-6713-757-A MA-377 BOARD, COMPLETE (ED88)
* 52
A-6713-758-A MA-377 BOARD, COMPLETE (ED22TW)
53
3-970-608-21 SUMITITE (B3), +BV
54
1-792-425-11 CABLE, FLAT (FMD-15) (ED22)
54
1-792-431-11 CABLE, FLAT (FMD-16) (ED55/ED88/ED99)
* 55
A-6791-880-A GK-12 BOARD, COMPLETE (ED99KR)
* 56
A-6713-756-A RF-048 BOARD, COMPLETE
(ED22TW/ED88/ED99TW)
0 57
1-777-857-42 CORD, POWER (ED22PL/ED55PL/ED99PL)
0 57
1-782-752-21 CORD, POWER (ED22KR/ED55KR/ED99KR)
0 57
1-790-390-11 CORD, POWER (ED22TW/ED88/ED99TW)
58
X-3950-329-1 PANEL ASSY, REAR (ED22: KR, PL/ED55)
58
X-3950-330-1 PANEL ASSY, REAR (ED99PL)
58
X-3950-331-1 PANEL ASSY, REAR (ED99KR)
58
X-3950-900-1 PANEL ASSY, REAR (ED99TW)
58
X-3950-901-1 PANEL ASSY, REAR (ED88)
58
X-3950-902-1 PANEL ASSY, REAR (ED22TW)
59
1-792-425-11 CABLE, FLAT (FAC-7)
60
X-3947-568-1 TC (N17S) ASSY
* 61
1-468-495-11 POWER BLOCK (PSM17-501)
62
3-979-112-01 SCREW SW (+) BVTP 3X10
63
3-682-691-00 NUT, WASHER HEXAGON
(ED22TW/ED88/ED99TW)
64
1-555-110-00 CABLE, PIN (ED22TW/ED88/ED99TW)
51
52
53
54
53
53
58
not
supplied
supplied
#1
#1
not
supplied
supplied
not
supplied
supplied
55
53
57
53
53
56
63
64
61
not
supplied
supplied
60
62
59
51
ED99KR
ED22TW/ED88/
ED99TW
ED99TW
ED22TW/ED88/
ED99TW
ED99TW
ED22TW/ED88/
ED99TW
ED99TW
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number speci-
fied.
critical for safety.
Replace only with part number speci-
fied.
Click on the first or last page to see other SLV-ED22KR / SLV-ED22PL / SLV-ED22TW / SLV-ED55KR / SLV-ED55PL / SLV-ED88TW / SLV-ED99KR / SLV-ED99PL / SLV-ED99TW service manuals if exist.