Read Sony SLV-ED225PS / SLV-ED323ME / SLV-ED323SG / SLV-ED825PS / SLV-ED828ME / SLV-ED828SG / SLV-ED925PS / SLV-ED929MI / SLV-EZ121AZ / SLV-EZ424AZ / SLV-EZ725AZ / SLV-EZ727AZ Service Manual online
Photo: SLV-ED825PS
RMT-V408
— Continued on next page —
Middle East Model
SLV-ED323ME/ED323SG/ED828ME/ED828SG
E Model
SLV-ED225PS/ED825PS/ED925PS
Hong Kong Model
SLV-ED929MI
Australia Model
SLV-EZ121AZ/EZ424AZ/
EZ725AZ/EZ727AZ
SERVICE MANUAL
VIDEO CASSETTE RECORDER
TS-10 MECHANISM
Refer to the SERVICE MANUAL of VHS MECHANI-
CAL ADJUSTMENT MANUAL VII for MECHANICAL
ADJUSTMENTS. (9-921-790-11)
SPECIFICATIONS
SLV-ED225/ED323/ED825/ED828/ED925/ED929/
EZ121/EZ424/EZ725/EZ727
RMT-V408/V408A/V409
System
Colour system
ED225/ED323/ED825/ED828/ED925/ED929:
PAL, MESECAM, NTSC 3.58, NTSC 4.43
EZ727: PAL, NTSC 3.58, NTSC 4.43
EZ121/EZ424/EZ725: PAL, NTSC 4.43
TV system
ED929: B/G, D/K, I, NTSC-M
ED225/ED323/ED825/ED828/ED925: B/G, D/K, I
EZ121/EZ424/EZ725/EZ727: B/G, B/B
Channel coverage
B/G: VHF E2 to E12/UHF E21 to E69/CATV S01 to
S05, S1 to S41
B/B: VHF R1 to R12/UHF R21 to R69
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
RF output signal
UHF channels 21 to 69 (G, I, K, B, M)
UHF channels 28 to 69 (B/B)
Aerial out
75-ohm asymmetrical aerial socket
Tape speed
ED929:
SP: PAL
23.39 mm/s (recording/playback)
NTSC 33.35 mm/s (recording/playback)
LP: PAL
11.70 mm/s (recording/playback)
NTSC 16.67 mm/s (playback only)
EP: NTSC 11.12 mm/s (recording/playback)
ED225/ED323/ED825/ED828/ED925/EZ727:
SP: PAL
23.39 mm/s (recording/playback)
NTSC 33.35 mm/s (recording (Line input only)/
playback)
LP: PAL
11.70 mm/s (recording/playback)
NTSC 16.67 mm/s (playback only)
EP: NTSC 11.12 mm/s (recording (Line input only)/
playback)
EZ121/EZ424/EZ725:
SP: PAL
23.39 mm/s (recording/playback)
NTSC 33.35 mm/s (playback only)
LP: PAL
11.70 mm/s (recording/playback)
NTSC 16.67 mm/s (playback only)
EP: NTSC 11.12 mm/s (playback only)
Maximum recording/playback time
10 hrs. in LP mode (with E300 tape)
Rewind time
Approx. 1 min.(with E180 tape)
Inputs and outputs
LINE IN 1/LINE-2 IN
VIDEO IN, phono jack (1)
Input signal: 1 Vp-p, 75 ohms,
unbalanced, sync negative
AUDIO IN, phono jack (2)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
General
Power requirements
ED225/ED323/ED825/ED828/ED925/ED929:
110 – 240 V AC, 50/60 Hz
EZ121/EZ424/EZ725/EZ727:
220 – 240 V AC, 50 Hz
Power consumption
ED225/ED323/EZ121/EZ424: 15 W
ED825/ED828/ED925/ED929/EZ725/EZ727: 17 W
3 W (POWER SAVE is set to ON, minimum)
Operating temperature
5
°
C to 40
°
C
Storage temperature
–20
°
C to 60
°
C
— 2 —
SAFETY CHECK-OUT
1. Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
and bridges.
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 transistors,
that were installed during a previous repair. Point them out to
the customer and recommend their replacement.
the customer and recommend their replacement.
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
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 recommend
their replacement.
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
PUBLISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
• Abbreviation
AUS : Australia model
HK : Hong Kong model
ME : Middle East model
HK : Hong Kong model
ME : Middle East model
• Hi-Fi model: ED825/ED828/ED925/ED929/EZ725/EZ727
Mono model: ED225/ED323/EZ121/EZ424
Dimensions including projecting parts and controls (w/h/d)
ED225/ED323/EZ121/EZ424:
Approx. 360
×
95
×
252 mm
ED825/ED828/ED925/ED929/EZ725/EZ727:
Approx. 430
×
96
×
251 mm
Mass
ED225/ED323/EZ121/EZ424: Approx. 2.8 kg
ED825/ED828/ED925/ED929/EZ725/EZ727:
Approx. 3.1 kg
Supplied accessories
Remote commander (1)
R6 (size AA) batteries (2)
Aerial cable (1)
ED323ME/ED828ME: Plug adaptor (1)
Design and specifications are subject to change without
notice.
— 3 —
TABLE OF CONTENTS
Important Service Guide
◆ Mode Switch (Program Switch) Assembly Point ························· 4
◆ How to eject the cassette tape
◆ How to eject the cassette tape
(If the unit does not operate on condition that tape is inserted
into housing ass’y) ································································· 4
into housing ass’y) ································································· 4
1.
General
Getting Started
Index to parts and controls ················································· 1-1
Step 1 : Unpacking ····························································· 1-2
Step 2 : Setting up the remote commander ························· 1-2
Step 3 : Connecting the VCR ············································· 1-3
Step 4 : Setting up the VCR with the Auto Set Up function 1-3
Step 5 : Setting the clock ···················································· 1-4
Step 6 : Selecting the TV system ········································ 1-5
Selecting a language ··························································· 1-5
Presetting channels ····························································· 1-5
Changing/disabling programme positions ·························· 1-6
Step 1 : Unpacking ····························································· 1-2
Step 2 : Setting up the remote commander ························· 1-2
Step 3 : Connecting the VCR ············································· 1-3
Step 4 : Setting up the VCR with the Auto Set Up function 1-3
Step 5 : Setting the clock ···················································· 1-4
Step 6 : Selecting the TV system ········································ 1-5
Selecting a language ··························································· 1-5
Presetting channels ····························································· 1-5
Changing/disabling programme positions ·························· 1-6
Basic Operations
Playing a tape ····································································· 1-7
Recording TV programmes ················································ 1-8
Recording TV programmes using the Easy Timer ············· 1-9
Recording TV programmes using the G-CODE system ·· 1-10
Recording TV programmes using the timer ····················· 1-11
Recording TV programmes ················································ 1-8
Recording TV programmes using the Easy Timer ············· 1-9
Recording TV programmes using the G-CODE system ·· 1-10
Recording TV programmes using the timer ····················· 1-11
Additional Operations
Playing/searching at various speeds ································· 1-12
Setting the recording duration time ·································· 1-12
Checking/changing/cancelling timer settings ··················· 1-12
Recording stereo and bilingual programmes ···················· 1-13
Searching using the index function ·································· 1-13
Adjusting the picture ························································ 1-14
Reducing the VCR’s power consumption ························ 1-14
Changing menu options ···················································· 1-14
Setting the recording duration time ·································· 1-12
Checking/changing/cancelling timer settings ··················· 1-12
Recording stereo and bilingual programmes ···················· 1-13
Searching using the index function ·································· 1-13
Adjusting the picture ························································ 1-14
Reducing the VCR’s power consumption ························ 1-14
Changing menu options ···················································· 1-14
Editing
Connecting to a VCR or stereo system ····························· 1-15
Basic editing ····································································· 1-15
Basic editing ····································································· 1-15
Additional Information
Troubleshooting ································································ 1-15
Index ··························································································· 1-16
2.
Disassembly
2-1
Mono Models
2-1-1 Case Upper ········································································· 2-1
2-1-2 Cover Bottom ····································································· 2-1
2-1-3 Ass’y-Panel Front ······························································· 2-2
2-1-4 Ass’y Main Board, Deck ···················································· 2-3
2-2
2-1-2 Cover Bottom ····································································· 2-1
2-1-3 Ass’y-Panel Front ······························································· 2-2
2-1-4 Ass’y Main Board, Deck ···················································· 2-3
2-2
Hi-Fi Models
2-2-1 Case Upper ········································································· 2-4
2-2-2 Cover Bottom ····································································· 2-4
2-2-3 Ass’y-Panel Front ······························································· 2-5
2-2-4 Jack Board ·········································································· 2-5
2-2-5 Deck, Main Board ······························································ 2-6
2-2-2 Cover Bottom ····································································· 2-4
2-2-3 Ass’y-Panel Front ······························································· 2-5
2-2-4 Jack Board ·········································································· 2-5
2-2-5 Deck, Main Board ······························································ 2-6
3.
P.C.Boards
3-1
Main PCB (AUS) ································································ 3-3
3-2
Main PCB (E, HK, ME) ····················································· 3-7
3-3
Function PCB (Hi-Fi model) ············································ 3-11
4.
Schematic Diagrams
◆ Block Identification of Main PCB ············································ 4-3
4-1
4-1
S.M.P.S. (AUS) ··································································· 4-5
4-2
S.M.P.S. (E, HK, ME) ························································ 4-7
4-3
Power ·················································································· 4-9
4-4
System Control/Servo ······················································· 4-11
4-5
Audio/Video ····································································· 4-13
4-6
Hi-Fi (Hi-Fi model) ·························································· 4-15
4-7
TM-Block ········································································· 4-17
4-8
OSD/VPS/PDC ································································· 4-19
4-9
A2/NICAM (ED925/ED929/EZ725/EZ727) ··················· 4-21
4-10 Input-Output (RCA Jack) ················································· 4-23
4-11 Sub (Hi-Fi model) ···························································· 4-25
◆ Waveform ··············································································· 4-27
◆ Voltage Table ·········································································· 4-29
4-11 Sub (Hi-Fi model) ···························································· 4-25
◆ Waveform ··············································································· 4-27
◆ Voltage Table ·········································································· 4-29
5.
Alignment and Adjustment
5-1
Reference ············································································ 5-1
5-1-1 Location of adjustment button of remote control ··············· 5-1
5-1-2 Test point location for adjustment mode setting
5-1-2 Test point location for adjustment mode setting
(EZ121/EZ424) ·································································· 5-2
5-1-3 Test point location for adjustment mode setting
(ED225/ED323) ·································································· 5-3
5-1-4 SW7T21 (TEST) location for adjustment mode setting
(ED825/ED828/ED925/ED929/EZ725/EZ727) ················· 5-4
5-2
Mechanical Adjustment ······················································ 5-5
5-2-1 The number and position of test point ································ 5-5
5-2-2 ACE Head Position (X-Point) Adjustment ························· 5-5
5-3
5-2-2 ACE Head Position (X-Point) Adjustment ························· 5-5
5-3
Head Switching Point Adjustment ····································· 5-6
5-4
NVRAM Option Setting ····················································· 5-6
6.
Repair Parts List
6-1
Exploded Views ·································································· 6-2
6-1-1 Instrument Assembly (Mono model) ·································· 6-2
6-1-2 Instrument Assembly (Hi-Fi model) ··································· 6-3
6-1-3 Mechanical Parts (Top Side) ·············································· 6-4
6-1-4 Mechanical Parts (Bottom Side) ········································· 6-5
6-2
6-1-2 Instrument Assembly (Hi-Fi model) ··································· 6-3
6-1-3 Mechanical Parts (Top Side) ·············································· 6-4
6-1-4 Mechanical Parts (Bottom Side) ········································· 6-5
6-2
Electrical Parts List ···························································· 6-6
• Abbreviation
AUS : Australia model
HK : Hong Kong model
ME : Middle East model
HK : Hong Kong model
ME : Middle East model
• Hi-Fi model: ED825/ED828/ED925/ED929/EZ725/EZ727
Mono model: ED225/ED323/EZ121/EZ424
— 4 —
IMPORTANT SERVICE GUIDE
◆ MODE SWITCH (PROGRAM SWITCH) ASSEMBLY POINT
1) When installing the ass’y deck on the Main PCB, be sure to align the assembly point of mode switch.
ASSEMBLY POINT
(ALIGN TWO ARROWS)
Fig. 1
Fig. 2
1
GEAR WORM
Fig. 3
FRAME
◆ HOW TO EJECT THE CASSETTE TAPE
(If the unit does not operate on condition that tape is inserted into housing ass’y)
(If the unit does not operate on condition that tape is inserted into housing ass’y)
1) Turn the Gear Worm 1 clockwise in the direction of arrow with screw driver. (See Fig. 2)
(Other method ; Remove the screw of Motor Load Ass’y, Separate the Motor Load Ass’y)
2) When Slider S, T are approached in the position of unloading, rotate holder Clutch counterclockwise after inserting screw driver in the
hole of frame’s bottom in order to wind the unwiunded tape. (Refer to Fig. 3)
(If you rotate Gear Worm 1 continuously when tape is in state of unwinding, you may cause a tape contamination by grease and
tape damage. Be sure to wind the unwiunded tape in the state of set horizontally.)
3) Rotate Gear Worm 1 clockwise using screw driver again up to the state of eject mode and then pick out the tape. (Refer to Fig. 2)
(Other method ; Remove the screw of Motor Load Ass’y, Separate the Motor Load Ass’y)
2) When Slider S, T are approached in the position of unloading, rotate holder Clutch counterclockwise after inserting screw driver in the
hole of frame’s bottom in order to wind the unwiunded tape. (Refer to Fig. 3)
(If you rotate Gear Worm 1 continuously when tape is in state of unwinding, you may cause a tape contamination by grease and
tape damage. Be sure to wind the unwiunded tape in the state of set horizontally.)
3) Rotate Gear Worm 1 clockwise using screw driver again up to the state of eject mode and then pick out the tape. (Refer to Fig. 2)
