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SLV-K867CH/K867PS/K877MN/K877PS/
KH7ME/KH7PS
RMT-V216/V216B/V216D
E Model
SLV-K867PS/K877MN/K877PS/KH7PS
ME Model
SLV-KH7ME
Chinese Model
SLV-K867CH
SERVICE MANUAL
SLV-KH7
VIDEO CASSETTE PLAYER
SLV-K867/K877
VIDEO CASSETTE RECORDER
MICROFILM
S MECHANISM
· Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENT
for MECHANICAL ADJUSTMENTS.
(9-921-647-11)
G
j
Photo : SLV-K877MN
SPECIFICATIONS


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-- 2 --
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
!OR DOTTED LINE WITH
MARK
! 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.
1.
Check the area of your repair for unsoldered or poorly-soldered
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
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
4.
Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replace-ment.
5.
Check the B+ voltage to see it is at the values specified.
6.
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270°C
during repairing.
· Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
· Be careful not to apply force on the conductor when soldering
or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
DIFFERENT SPECIFICATIONS
SPECIFICATIONS
TUNER
RF MOD. SYSTEM
RF MOD. FREQUENCY
G-CODE SYSTEM
DUAL MODE SHUTTLE
RCA FRONT LINE IN/OUT
REMOTE COMMANDER
MODEL
SYSTEM 1
MPX 1
SYSTEM 2
MPX 2
SYSTEM 3
MPX 3
SLV-K867
CH
PS
BG
MONO
DK
MONO
I
MONO
K/G/I
UHF21-69
--
--
IN
RMT-V216B
SLV-K877
MN
PS
BG
BG
NICAM/ZWEITON ZWEITON
DK
MONO
--
--
K/G
UHF21-69
®
®
IN/OUT
RMT-V216D
SLV-KH7
ME
PS
--
--
--
--
--
--
K/G
UHF30-39
--
--
IN/OUT
RMT-V216
PRINTED WIRING BOARDS USED ON EACH MODEL
Board Name
DM-69
DM-70
HI-56
KR-33
KR-34
MA-306
MF-307
MJ-83
MJ-84
SR-26
SR-27
SW-294
SW-295
Model
Part No.
1-666-514-11
1-666-519-11
1-666-517-11
1-666-522-11
1-666-523-11
1-666-511-11
1-666-512-11
1-666-515-11
1-666-520-11
1-666-516-11
1-666-521-11
1-666-513-11
1-666-518-11
SLV-K867
CH
PS
A-6791-327-A
A-6791-325-A
A-6791-323-A
A-6791-324-A
A-6791-334-A
A-6791-326-A
SLV-K877
MN
PS
A-6791-333-A
A-6791-331-A
A-6791-318-A
A-6791-328-A
A-6791-330-A
A-6791-334-A
A-6791-329-A
A-6791-332-A
SLV-KH7
ME
PS
A-6791-321-A
A-6791-318-A
A-6791-317-A
A-6791-319-A
A-6791-322-A
A-6791-316-A
A-6791-320-A


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-- 3 --
TABLE OF CONTENTS
SERVICE NOTE
1.
"S" MECHANISM EMERGENCY MODE
INDICATION ····································································· 5
1-1.
Function ·············································································· 5
1-2.
Indication ············································································ 5
2.
EXTENSION CABLES FOR REPAIRING
KR-33/34 BOARD ····························································· 7
3.
HOW TO REPLACE A ROTARY UPPER DRUM ··········· 8
3-1.
HOW TO REMOVE A ROTARY UPPER DRUM ············ 8
3-2.
HOW TO ATTACH A NEW ROTARY
UPPER DRUM ··································································· 8
1.
GENERAL
Getting Started
Unpacking ··············································································· 1-1
Setting up the remote commander ·········································· 1-1
Connecting the VCR ······························································· 1-1
Tuning your TV to the VCR ···················································· 1-2
Setting up the VCR with EASY SET UP ································ 1-2
Manual setup -- Selecting a Language ·································· 1-3
Manual setup -- Presetting channels ······································ 1-3
Manual setup -- Setting up G-CODE
(SLV-K877MN/PS only) ························································· 1-4
Manual setup -- Changing disabling programme positions
(SLV-K877MN/PS only) ························································· 1-5
Manual setup -- Setting the clock ·········································· 1-6
Basic Operations
Playing a tape ·········································································· 1-6
Recording TV programmes ····················································· 1-7
Recording TV programmes using G-CODE
(SLV-K877MN/PS only) ························································· 1-8
Setting the timer manually ······················································ 1-9
Additional Operations
Playing/searching at various speeds ······································ 1-10
Recording TV programmes using the quick timer ················ 1-10
Checking/changing/cancelling timer settings ······················· 1-10
Recording stereo and bilingual programmes ························ 1-11
Karaoke sing-along ······························································· 1-11
Searching with the AMS or index function ··························· 1-14
Enjoying the surround sound (Virtual Sound) ······················ 1-14
Adjusting the picture ····························································· 1-15
Changing menu options ························································ 1-15
Editing
Connecting to a VCR or stereo system ································· 1-15
Basic editing ·········································································· 1-15
Audio dubbing ······································································ 1-16
Additional Information
Index to parts and controls ···················································· 1-16
2.
DISASSEMBLY
2-1.
UPPER CASE, FRONT PANEL BLOCK ASSEMBLY · 2-1
2-2.
DM-69/70, HI-56, MF-307, SW-294/295 BOARDS ······ 2-1
2-3.
POWER BLOCK, REAR PANEL, BOTTOM PLATE ··· 2-2
2-4.
MECHANISM DECK, KR-33/34, SR-26/27 BOARDS 2-2
2-5.
INTERNAL VIEWS ························································ 2-3
2-6.
CIRCUIT BOARDS LOCATION ··································· 2-4
3.
BLOCK DIAGRAMS
3-1.
OVERALL BLOCK DIAGRAM ···································· 3-1
3-2.
VIDEO BLOCK DIAGRAM ·········································· 3-4
3-3.
AUDIO BLOCK DIAGRAM ·········································· 3-7
3-4.
KARAOKE-1 BLOCK DIAGRAM ······························ 3-10
3-5.
KARAOKE-2 BLOCK DIAGRAM ······························ 3-13
3-6.
SERVO/SYSTEM CONTROL BLOCK DIAGRAM ··· 3-15
3-7.
MODE-1 BLOCK DIAGRAM ····································· 3-17
3-8.
MODE-2 BLOCK DIAGRAM ····································· 3-19
3-9.
TUNER BLOCK DIAGRAM ······································· 3-21
3-10. POWER SUPPLY BLOCK DIAGRAM ······················· 3-23
4.
PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1.
SLV-K867/K877 FRAME SCHEMATIC DIAGRAM ···· 4-1
4-2.
SLV-KH7 FRAME SCHEMATIC DIAGRAM ··············· 4-3
4-3.
PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS ···································································· 4-6
· MA-306 (MAIN) PRINTED WIRING BOARD ········· 4-7
· MA-306 (REC/PB AMP)
SCHEMATIC DIAGRAM ····························· 4-11
· MA-306 (VIDEO, AUDIO)
SCHEMATIC DIAGRAM ····························· 4-16
· MA-306 (SERVO/SYSTEM CONTROL)
SCHEMATIC DIAGRAM ····························· 4-19
· MA-306 (I/O, TUNER) SCHEMATIC DIAGRAM ·· 4-23
· SR-26/27 (SURROUND)
PRINTED WIRING BOARDS ······················ 4-26
· MA-306 (SURROUND), SR-26/27 (SURROUND)
SCHEMATIC DIAGRAM ····························· 4-27
· MA-306 (POWER SUPPLY)
SCHEMATIC DIAGRAM ····························· 4-31
· KR-33 (KARAOKE) SCHEMATIC DIAGRAM ······ 4-32
· KR-33 (KARAOKE) PRINTED WIRING BOARD ·· 4-35
· KR-34 (KARAOKE) PRINTED WIRING BOARD ·· 4-37
· KR-34 (KARAOKE) SCHEMATIC DIAGRAM ······ 4-39
· MF-307 (MODE CONTROL)
PRINTED WIRING BOARD ························ 4-44
· MF-307 (MODE CONTROL)
SCHEMATIC DIAGRAM ····························· 4-47
· SW-294 (KARAOKE SWITCHES)
PRINTED WIRING BOARD ························ 4-49
· SW-294 (KARAOKE SWITCHES)
SCHEMATIC DIAGRAM ····························· 4-51
· HI-56 (MODE CONTROL)
PRINTED WIRING BOARD ························ 4-54
· HI-56 (MODE CONTROL)
SCHEMATIC DIAGRAM ····························· 4-57
· SW-295 (KARAOKE SWITCHES)
SCHEMATIC DIAGRAM ····························· 4-60
· SW-295 (KARAOKE SWITCHES)
PRINTED WIRING BOARDS ······················ 4-63
· DM-69/70 (OPERATION SWITCHES),
MJ-83/84 (MIC JACKS)
PRINTED WIRING BOARDS ······················ 4-66
· DM-69/70 (OPERATION SWITCHES),
MJ-83/84 (MIC JACKS)
SCHEMATIC DIAGRAM ····························· 4-69
· POWER BLOCK HS-828SF
(SWITCHING REGULATOR)
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ····························· 4-73
5.
INTERFACE,
IC PIN FUNCTION DESCRIPTION
5-1.
SYSTEM CONTROL --
VIDEO BLOCK INTERFACE
(MA-306 BOARD IC161) ··············································· 5-1
5-2.
SYSTEM CONTROL --
SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-306 BOARD IC161) ··············································· 5-1
5-3.
SYSTEM CONTROL --
MECHANISM INTERFACE
(MA-306 BOARD IC161) ··············································· 5-2
5-4.
SYSTEM CONTROL -- SYSTEM CONTROL
PERIPHERAL CIRCUIT INTERFACE
(MA-306 BOARD IC161) ··············································· 5-2
5-5.
SYSTEM CONTROL --
Hi-Fi AUDIO BLOCK INTERFACE
(MA-306 BOARD IC161) ··············································· 5-2


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5-6.
SERVO/SYSTEM CONTROL
MICROPROCESSOR PIN FUNCTION
(MA-306 BOARD IC161) ··············································· 5-3
5-7.
TIME/TUNER CONTROL
MICROPROCESSOR PIN FUNCTION
(HI-56 BOARD IC301) ··················································· 5-4
5-8.
SR CONTROL LINE SPECIFICATION ························ 5-5
6.
ADJUSTMENTS
6-1
MECHANICAL ADJUSTMENTS ································· 6-1
6-2.
ELECTRICAL ADJUSTMENTS ··································· 6-1
2-1.
PREPARATION BEFORE ADJUSTMENT ··················· 6-1
2-1-1. Equipment Required ························································ 6-1
2-1-2. Equipment Connection ···················································· 6-1
2-1-3. Input Signal Check ·························································· 6-1
2-1-4. Alignment Tape ······························································· 6-1
2-1-5. Input/Output Levels and Impedance ······························· 6-2
2-1-6. Adjustment Sequence ······················································ 6-2
2-2.
POWER SUPPLY CHECK ············································· 6-2
2-2-1. Output Voltage Check (MA-306 Board) ························· 6-2
2-3.
SERVO SYSTEM CHECK ············································· 6-3
2-3-1. RF Switching Position/
AF Switching Position Adjustments(MA-306 Board) ···· 6-3
2-4.
VIDEO SYSTEM CHECKS AND ADJUSTMENT ······· 6-4
2-4-1. X'tal OSC Check (MA-306 Board) ································· 6-4
2-4-2. SYNC AGC Check (MA-306 Board) ······························ 6-4
2-4-3. White Clip/Dark Clip Check (MA-306 Board) ··············· 6-4
2-4-4. Recording Y Level Check (MA-306 Board) ··················· 6-5
2-4-5. Recording Chroma Level Check(MA-306 Board) ·········· 6-5
2-4-6. Playback Level Check (MA-306 Board) ························· 6-5
2-4-7. VCO Frequency Adjustment (MA-306 Board) ··············· 6-5
2-5.
AUDIO SYSTEM ADJUSTMENT ································· 6-5
2-5-1. ACE Head Adjustment ···················································· 6-6
2-5-2. E-E Output Level Check ················································· 6-6
2-5-3. Overall Output Level and Distortion Factor Check ········· 6-6
2-5-4. Overall Noise Level Check ············································· 6-6
2-6.
ADJUSTING PARTS LOCATION DIAGRAM ············· 6-8
7.
REPAIR PARTS LIST
7-1.
EXPLODED VIEWS ······················································ 7-1
7-1-1. FRONT PANEL ASSEMBLY AND
UPPER CASE SECTION ··············································· 7-1
7-1-2. CHASSIS SECTION ······················································· 7-2
7-1-3. MECHANISM DECK-1 ················································· 7-3
7-1-4. MECHANISM DECK-2 ················································· 7-4
7-1-5. MECHANISM DECK-3 ················································· 7-5
7-2.
ELECTRICAL PARTS LIST ·········································· 7-6


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SERVICE NOTE
SLV-K867CH/K867PS/K877MN/K877PS/KH7ME/KH7PS
1. "S" MECHANISM EMERGENCY MODE INDICATION
1-1.
Function
In case of emergency, transmitting the code shows the contents of emergency to HITT.
1-2.
Indication
· Indication on the fluorescent display tube
· Observe the RAM in the system controller
20C h
EMG code
20C h
Encode
Upper 4 bit: Target cam position
Lower 4 bit: Position in case of emergency
Table 1. The number of EMG
Table 2. Table of EMG code
L H
M
S
Number of EMG
(Table 1)
EMG code
(Table 2)
Encoder
(Table 3)
Code
Contents
1
First EMG after reset
2
Second EMG after reset
3
Third EMG after reset
Code
00h
10h
11h
12h
20h
21h
22h
23h
24h
25h
30h
31h
40h
41h
42h
43h
44h
50h
60h
70h
Contents
No error
Loading direction
Cam encoder error
Unloading direction
Cam encoder error
On initializing cam position
Cam encoder error
On unloading
T reel slack
On unloading
S reel slack
T reel rotation error
S reel rotation error
FG error during T reel startup
FG error during S reel startup
Error during capstan startup
Error during normal rotation of capstan
FG error during drum startup
PG error during drum startup
FG error during normal rotation of drum
PG error during normal rotation of drum
Phase error during normal rotation of drum
DEW
FL cassette compartment error
DEW eject error
Remarks
HMD not detected
HMD not detected
Only when using special chart
Only when using special chart
Only when using special chart
HMD not detected
HMD not detected
HMD not detected
HMD not detected