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SERVICE MANUAL
African Model
SLV-ED39AF/ED89AF
Australian Model
SLV-EZ11AZ/EZ22AZ/EZ44AZ/
EZ66AZ/EZ77AS
E Model
SLV-ED15PS/ED25PS/ED55PS/
ED85PS/ED95M1/ED95MN
ME Model
SLV-ED33ME/ED33SG/ED66ME/
ED66SG/ED88ME/ED88SG
Middle East Model
SLV-ED33MJ/ED66MJ/ED88MJ
New Zealand Model
SLV-EZ77NZ
Thai Model
SLV-ED25TH/ED85TH/ED95TH
VIDEO CASSETTE RECORDER
· Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENTS VI for MECHANICAL ADJUSTMENTS.
(9-921-647-11)
* The abbreviations of ED15/ED25/ED33/ED39/ED55/ED66/ED85/
ED88/ED89/ED95/EZ11/EZ22/EZ44/EZ66 and EZ77 contained in this
service manual are indicated when these models are common to all
their corresponding models as given below.
ED15PS
ED15
Abbreviated
model name
All model
names
SLV-
ED25
ED33
ED39AF
ED39
ED33ME
ED33MJ
ED33SG
RMT-V296/V296A/V296B/V298/V298A/V298B/V298C/V298D
SLV-ED15/ED25/ED33/ED39/ED55/ED66/ED85/ED88/ED89/
ED95/EZ11/EZ22/EZ44/EZ66/EZ77
Photo: SLV-ED89AF
ED55PS
ED55
ED66
ED85
ED88ME
ED88MJ
ED88SG
ED88
ED85PS
ED85TH
ED89
ED95
EZ11
EZ22AZ
EZ22
EZ44
EZ11AZ
ED66ME
ED66MJ
ED66SG
ED25PS
ED25TH
ED89AF ED95MI
ED95MN
ED95TH
EZ44AZ
EZ66
EZ66AZ
EZ77
EZ77AS
EZ77NZ
S MECHANISM


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­ 2 ­
SAFETY CHECK-OUT
1. Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transis-
tors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
5. Check the B+ voltage to see it is at the values specified.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
System
Color system
ED15/ED25/ED35/ED55/
ED66/ED85/ED88/ED95:
PAL, MESECAM, NTSC 3.58,
NTSC 4.43
ED39/ED89:
PAL, SECAM, MESECAM, NTSC 3.58,
NTSC 4.43
EZ11/EZ22/EZ44/EZ66/EZ77:
PAL, NTSC 4.43
TV system
ED15/ED25/ED35/ED55/ED66/
ED85/ED88/ED95: MN, TH:
B/G, D/K, I
ED95MI:
B/G, D/K, I, M
EZ11/EZ22/EZ44/EZ66/EZ77:
B/G
Channel coverage
ED15/ED25/ED35/ED39/ED55/
ED66/ED85/ED88/ED89/ED95:
B/G: VHF E2 to E12/UHF E21 to E69/
CATV S01 to S05, S1 to S41
D/K: VHF R1 to R12/UHF R21 to R69
I: VHF SA4 to SA13/UHF B21 to B69/
CATV S01 to S05, S1 to S41
ED95MI:
M: VHF A2 to A13/UHF A14 to A69/
CATV A-8 to A-1, A to W, W+1 to W+ 84
EZ11/EZ22/EZ44/EZ66
(COUNTRY is set to AUS),
EZ77AS:
VHF AS0 to AS12, AS5A, AS9A
UHF AS28 to AS69
CATV S01 to S05, S1 to S41
EZ11/EZ22/EZ44/EZ66
(COUNTRY is set to NZ),
EZ77NZ:
VHF NZ1 to NZ11
UHF E21 to E69
CATV S01 to S05, S1 to S41
RF output signal
ED15/ED25/ED35/ED39/ED55/ED66/
ED85/ED88/ED89/ED95/EZ77NZ:
UHF channels 21 to 69
EZ11/EZ22/EZ44/EZ66/EZ77AS:
UHF channels 28 to 69
Aerial out
75-ohm asymmetrical aerial socket
Inputs and outputs
LINE-1 IN
VIDEO IN, phono jack (1)
Input signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN (MONO), phono jack (1)
(ED15/ED25/ED33/ED39/ED55/ED66/
EZ11/EZ22/EZ44)
AUDIO IN, phono jack (2) (ED85/ED88/
ED89/ED95/EZ66/EZ77)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
LINE-2 IN (ED55/ED66/ED88/ED89/ED95/
EZ66/EZ77)
VIDEO IN, phono jack (1)
Input signal: 1Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN (MONO), phono jack (2)
(ED55/ED66)
AUDIO IN, phono jack (2) (ED88/ED89/
ED95/EZ66/EZ77)
Input level: 327mVrms
Input impedane: more than 47 kilohms
LINE-3 IN (SAT IN/STB IN) (ED88/ED89/ED95:
MN, TH/EZ77)
VIDEO IN, phono jack (1)
Input signal: 1Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN, phono jack (2)
Input level: 327mVrms
Input impedane: more than 47 kilohms
LINE-1 OUT
VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 ohms, unbal-
anced, sync negative
AUDIO OUT (MONO), phono jack (1)
(ED15/ED25/ED33/ED39/EZ11/EZ22)
AUDIO OUT (MONO), phono jack (2)
(ED55/ED66/EZ44)
AUDIO OUT, phono jack (2) (ED85/ED88/
ED89/ED95/EZ66/EZ77)
Standard output: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
LINE-2 OUT (AUDIO) (ED85/ED88/ED89/
ED95/EZ66/EZ77)
AUDIO OUT, phono jack (2)
Standard output: 327 mVrms
Load impedance; 47 kilohms
Output impedance: less than 10 kilohms
General
Power requirements
110 - 240 V AC, 50/60 Hz (ED15/ED25/
ED33/ED39/ED55/ED66/ED85/ED88/
ED89/ED95)
220-240 V AC, 50 Hz (EZ11/EZ22/EZ44/
EZ66/EZ77)
Power consumption
15W (ED15/ED25/ED33/ED39/ED55/
ED66/EZ11/EZ22/EZ44)
16W (ED85/ED88/ED89/EZ66)
18W(ED95/EZ77)
Operating temperature
5 °C to 40 °C
Storage temperature
­20 °C to 60 °C
Dimensions
Approx. 430
× 97 × 288 mm (w/h/d)
including projecting parts and controls
Mass
Approx. 4.1 kg:
Supplied accessories
Remote commander (1)
R6 (size AA) batteries (2)
Aerial cable (1)
Plug adaptor (1) (ED33: ME, MJ/ED39/ED66:
ME, MJ/ED88: ME, MJ/ED89)
Design and specifications are subject to change
without notice.
SPECIFICATIONS


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­ 3 ­
· Feature Difference
SLV-
ED15
ED25
ED33
ED39
ED55
ED66
ED85
ED88
ED89
ED95
ED95
FEATURE
MN, TH
MI
HEAD/CH
2/2
2/2
2/2
2/2
4/4
4/4
4/6
4/6
4/6
4/6
4/6
NTSC
(3.58) (REC/PB)
a/aa/aa/aa/aa/aa/aa/aa/aa/aa/aa/a
(4.43) (REC/PB)
a/aa/aa/aa/aa/aa/aa/aa/aa/aa/aa/a
SECAM
(REC/PB)
×/××/××/××/a
×/××/××/××/××/a
×/××/×
ME-SECAM
(REC/PB)
a/aa/aa/aa/aa/aa/aa/aa/aa/aa/aa/a
REC (NTSC)
(SP/EP)
aa
aa
a
a
aa
aa
a
(PAL)
(SP/LP)
aa
aa
a
a
aa
aa
a
RCA REAR LINE INPUT
2pin
2pin
2pin
2pin
2pin
2pin
3pin
3pin
3pin
3pin
3pin
(B.Y)
(B.Y)
(B.Y)
(B.Y)
(B.Y)
(B.Y)
(R.W.Y) (R.W.Y)
(R.W.Y) (R.W.Y) (R.W.Y)
RCA REAR LINE OUTPUT
2pin
2pin
2pin
2pin
3pin
3pin
3pin
3pin
3pin
3pin
3pin
(B.Y)
(B.Y)
(B.Y)
(B.Y)
(B.B.Y)
(B.B.Y) (R.W.Y) (R.W.Y)
(R.W.Y) (R.W.Y) (R.W.Y)
RCA FRONT LINE INPUT
××
××
3pin
3pin
×
3pin
3pin
3pin
3pin
(Y.B.B)
(Y.B.B)
(Y.W.R)
(Y.W.R) (Y.W.R) (Y.W.R)
ADDITIONAL REAR INPUT
××
××
×
×
×
aa
a
×
(SAT IN)
ADDITIONAL REAR OUTPU
××
××
×
×
aa
aa
a
(AUDIO OUT)
MODULATOR SYSTEM
G/K/I
G/K/I
G/K/I
G/K/I
G/K/I
G/K/I
G/K/I
G/K/I
G/K/I
G/K/I
G/K/I/M
REMOTE COMMANDER RMT-
V298A
V298A
V298A
V298A
V298A
V298B
V298A
V298B
V298C
V298B
V298D
SLV-
EZ11
EZ22
EZ44
EZ66
EZ77
FEATURE
HEAD/CH
2/2
2/2
4/4
4/6
4/6
NTSC
(3.58) (REC/PB)
×/××/××/××/×
a/a
(4.43) (REC/PB)
×/a
×/a
×/a
×/aa/a
SECAM
(REC/PB)
×/××/××/××/××/×
ME-SECAM
(REC/PB)
×/××/××/××/××/×
REC (NTSC)
(SP/EP)
××
××
×
(PAL)
(SP/LP)
aa
aa
a
RCA REAR LINE INPUT
2pin
2pin
2pin
3pin
3pin
(B.Y)
(B.Y)
(B.Y)
(R.W.Y) (R.W.Y)
RCA REAR LINE OUTPUT
2pin
2pin
3pin
3pin
3pin
(B.Y)
(B.Y)
(B.B.Y) (R.W.Y) (R.W.Y)
RCA FRONT LINE INPUT
××
×
3pin
3pin
(Y.W.R) (Y.W.R)
ADDITIONAL REAR INPUT
××
××
a
(SAT IN)
ADDITIONAL REAR OUTPU
××
×
aa
(AUDIO OUT)
MODULATOR SYSTEM
G
G
G
G
G
REMOTE COMMANDER RMT-
V298
V296
V296
V296A
V296B


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­ 4 ­
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Feature Difference ................................................................... 3
SERVICE NOTE ...................................................................... 5
1.
GENERAL
Getting Started .............................................................. 1-1
Basic Operations ........................................................... 1-4
Additional Operations .................................................... 1-8
Editing ............................................................................ 1-12
Additional Information ................................................... 1-13
2.
DISASSEMBLY
2-1.
Upper Case Removal .................................................... 2-1
2-2.
Rear Panel Removal ..................................................... 2-1
2-3.
PSM17-501 Board Removal ......................................... 2-1
2-4.
Front Panel Section Removal ........................................ 2-1
2-5.
Mechanism Deck Removal ............................................ 2-2
2-6.
MA-377 Board Removal ................................................ 2-2
2-7.
Internal Views ................................................................ 2-3
2-8.
Circuit Boards Location ................................................. 2-4
3.
BLOCK DIAGRAMS
3-1.
Overall Block Diagram ................................................... 3-1
3-2.
Video Block Diagram ..................................................... 3-3
3-3.
Servo/System Control Block Diagram .......................... 3-5
3-4.
Audio Block Diagram ..................................................... 3-7
3-5.
Tuner Block Diagram ..................................................... 3-9
3-6.
Mode Control Block Diagram ........................................ 3-11
3-7.
Power Block Diagram .................................................... 3-13
4.
PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1.
Frame Schematic Diagram ............................................ 4-3
4-2.
Printed Wiring Boards and Schematic Diagrams ......... 4-5
MA-377 Printed Wiring Board ....................................... 4-5
MA-377 (Video, Audio) Schematic Diagram ................. 4-9
MA-377 (System Control) Schematic Diagram ............ 4-13
MA-377 (Servo Control) Schematic Diagram ............... 4-17
MA-377 (Hi-Fi Audio) Schematic Diagram .................... 4-19
MA-377 (Tuner) Schematic Diagram ............................ 4-21
MA-377 (I/O) Schematic Diagram ................................. 4-23
MA-377 (Mode Control) Schematic Diagram ................ 4-25
SE-103 Printed Wiring Board and
Schematic Diagram ....................................................... 4-27
GK-12 Printed Wiring Board and
Schematic Diagram ....................................................... 4-29
NK-11 Printed Wiring Board and
Schematic Diagram ....................................................... 4-31
FJ-26, MF-321 Printed Wiring Boards and
Schematic Diagrams ..................................................... 4-33
DS-92, KK-24 Printed Wiring Boards and
Schematic Diagrams ..................................................... 4-35
PSM17-501 Printed Wiring Board ................................. 4-37
PSM17-501 Schematic Diagram ................................... 4-39
5.
INTERFACE, IC PIN FUNCTION DESCRIPTION
5-1.
System Control-Video Block Interface
(MA-377 BOARD IC101) ............................................... 5-1
5-2.
System Control-Servo Peripheral Circuit Interface
(MA-377 BOARD IC101) ............................................... 5-1
5-3.
System Control-Mechanism Block Interface
(MA-377 BOARD IC101) ............................................... 5-2
5-4.
System Control-Audio Block Interface
(MA-377 BOARD IC101) ............................................... 5-3
5-5.
Servo/System Control,
OSD Microprocessor Pin Function
(MA-377 BOARD IC101) ............................................... 5-4
5-6.
NICAM Processor Pin Function
(NK-11 BOARD IC1) ..................................................... 5-5
5-7.
ZWEITON Processor Pin Function
(GK-12 BOARD IC001) ................................................. 5-5
6.
ERROR CODES ....................................................... 6-1
7.
ADJUSTMENTS
7-1.
Mechanical Adjustments ............................................... 7-1
7-2.
Electrical Adjustments ................................................... 7-1
2-1.
Pre-Adjustment Preparations ........................................ 7-1
2-1-1. Instruments to be Used ............................................ 7-1
2-1-2. Connection ............................................................... 7-1
2-1-3. Set-up of Adjustment ............................................... 7-1
2-1-4. Alignment Tapes ....................................................... 7-1
2-1-5. Specified I/O Level and Impedance ......................... 7-1
2-1-6. Adjusting Sequence ................................................. 7-2
2-2.
Power Supply Adjustment ............................................. 7-2
2-2-1. Power Supply Check ................................................ 7-2
2-3.
Servo System Adjustment ............................................. 7-2
2-3-1. RF Switching Position Adjustment ........................... 7-2
2-4.
Audio System Adjustments ........................................... 7-3
2-4-1. Hi-Fi Audio System Adjustment ............................... 7-3
1.
AF Switching Position Adjustment ........................... 7-3
2.
Frequency Response Check .................................... 7-3
3.
Overall Level Characteristic and
Distortion Factor Check ........................................... 7-4
4.
Overall S/N Check .................................................... 7-4
2-4-2. Normal Audio System Adjustment ........................... 7-4
1.
ACE Head Adjustment ............................................. 7-4
2.
E-E Output Level Check ........................................... 7-4
3.
Frequency Responce Check .................................... 7-4
4.
Overall Level Characteristic and Distortion
Factor Check ............................................................ 7-5
5.
Overall S/N Check .................................................... 7-5
2-5.
Tuner System Adjustment ............................................. 7-5
2-5-1. Separation Adjustment ............................................. 7-5
2-6.
Parts Arrangement Diagram for Adjustments ............... 7-6
8.
REPAIR PARTS LIST
8-1.
Exploded Views ............................................................. 8-1
8-1-1. Front Panel and Cabinet Assemblies ....................... 8-1
8-1-2. Chassis Assembly .................................................... 8-3
8-1-3. Mechanism Chassis Assembly (1) ........................... 8-4
8-1-4. Mechanism Chassis Assembly (2) ........................... 8-5
8-1-5. Mechanism Chassis Assembly (3) ........................... 8-6
8-2.
Electrical Parts List ....................................................... 8-7


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­ 5 ­
SERVICE NOTE
1. DISASSEMBLY
· This set can be disassembled in the order shown below.
Note: Pages in
indicated pages in the SERVICE MANUAL.
Pages in
indicated pages in the VHS MECHANICAL ADJUSTMENT MANUAL VI.
Set
Upper case
(Page 2-1)
Front Panel
Section
(Page 2-1)
PSM17-501
Board
(Page 2-1)
Pinch Press
Block Ass'y
(Page 14)
Ground Shaft
Ass'y
(Page 13)
Mechanism
Deck
(Page 2-2)
FL Complete
Ass'y
(Page 13)
Drum
Ass'y
(Page 13)
Rear
Panel
(Page 2-1)
Rubber
Belt
(Page 15)
Rubber
Belt
(Page 15)
Slider
(Page 26)
Loading
Gear (T, S)
(Page 28)
Retainer
Plate
(Page 22)
Rubber
Belt
(Page 15)
Capstan
Motor
(Page 15)
FL Slider
Block Ass'y
(Page 22)
Pully Gear
Ass'y
(Page 29)
Cam Motor
Retainer
(Page 31)
Cam Gear
(Page 23)
Cam Motor
(Page 31)
Reel Direct
Ass'y
(Page 30)
MA-377
Board
(Page 2-2)
Rotary
Switch
(Page 2-2)
Tuner
Unit