SLV-999HF, SLV-M11HF, SLV-M91HF - Sony VCR Service Manual (repair manual)

US Model

SLV-M11HF/M91HF

Canadian Model

SLV-999HF/M11HF/M91HF

MICROFILM

SR MECHANISM

j
G

Clock

Quartz locked

Timer indication

12-hour cycle

Timer setting

8 programs per month (max.)

Power back-up

Built-in self-charging  capacitor
Back-up duration:  up to 1 hour at a time

Power requirements

120 V AC, 60 Hz

Power consumption

35 W

Operating temperature

5

°

C to 40

°

C (41

°

F to 104

°

F)

Storage temperature

– 20

°

C to 60

°

C (– 4

°

F to 140

°

F)

Dimensions

Approx. 430 

×

 100 

×

 281  mm (w/h/d)

Approx. (17 

×

 4 

×

 11  

1

/

8

 inches)

including projecting parts and controls

Mass

Approx. 4.6 kg (10 lb 2 oz)(M11HF/M91HF)
Approx. 4.3 kg (9 lb 8 oz)(999HF)

Remote commander (1)
Size AA (R6)  batteries (2)
75-ohm coaxial cable with F-type connectors (1)
Audio/video cable (3-phono, 1-mini to 3-phono,
1-mini) (1)
Monaural cable (1-mini to 1-mini) (1)
 (M11HF/M91HF only)
Cable Mouse (cable box controller) (1)
SmartFile labels (5) (M11HF/M91HF only)

Design and specifications are subject to change
without notice.

Format

VHS NTSC standard

Video recording system

Rotary head helical scanning FM system

Video heads

Double azimuth four heads

Video signal

NTSC color, EIA standards

Tape speed

SP:  33.35 mm/s (1 

3

/

8

 inches/s)

EP: 11.11 mm/s (

7

/

16

 inches/s)

LP: 16.67  mm/s (

11

/

16

 inches/s),

playback only

Maximum recording/playback time

8 hrs. in EP  mode (with T-160 tape)

Fast-forward and rewind time

Approx. 1 min. (with T-120  tape)*

* The time may vary according to the brand

and/or type of tape  or the operating
condition of  the  VCR.

Channel coverage

VHF 2  to 13
UHF 14  to 69
CATV A-8 to A-1, A to W, W+1 to W+84

Antenna

75-ohm antenna terminal for VHF/UHF

LINE-1 IN and -2 IN

VIDEO IN, phono jack (1 each)
Input signal:  1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN, phono jacks (2 each)
Input level:    327  mVrms
Input impedance:   more than 47 kilohms

LINE OUT

VIDEO OUT,  phono jack  (1)
Output signal:  1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO OUT, phono jacks (2)
Standard output:  327  mVrms
Load impedance:  47  kilohms
Output impedance:  less than 10 kilohms

S-LINK (CONTROL S  IN)

Mini jack  (1)

CABLE BOX  CONTROL (CONTROL S  OUT)

Stereo mini jack (plug in power) (1)

CPD IN (M11HF/M91HF only)

Mini jack  (1)

Photo: SLV-M91HF

RMT-V278

— 2 —

After correcting the original service problem, perform the following

safety checks before releasing the set to the customer.

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, though functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replacement.

5.

Check the line cord for cracks and abrasion.
Recommend the replacement of any such line cord to the
customer.

6.

Check the B+ voltage to see it is at the values specified.

7.

Check the antenna terminals, metal trim, "metallized" knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.

The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.

1.

A commercial leakage tester, such as the Simpson 229 or RCA
TW-540A. Follow the manufacturers' instructions to use these
instruments.

2.

A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.

3.

Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The "limit" indication
is 0.75V, so analog meters must have an accurate low voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)

To Exposed Metal 

Parts on Set

0.15 

µ

F

1.5 k

Ω

AC
Voltmeter
(0.75 V)

Earth Ground

Fig. A.  Using an AC voltmeter to check AC leakage.

!

!

!

— 3 —

1.

ERROR CODE INDICATION ··········································· 5

Basic Operations

Playing a tape ········································································· 1-1
Recording TV programs ························································ 1-1
Locating a channel by Station ID ·········································· 1-2
Recording TV programs using the
VCR Plus+ GOLD system ····················································· 1-3
Setting the timer manually ····················································· 1-3

Additional Operations

Playing/searching at various speeds ······································ 1-4
Creating a favorite channel list with Station ID ···················· 1-5
Setting the duration time ························································ 1-6
Checking/changing/ canceling timer settings ························ 1-6
Recording stereo and bilingual programs ······························ 1-6
Searching using the index function ········································ 1-7
Adjusting the picture ····························································· 1-7
Changing menu options ························································· 1-8
Watching the camcorder picture without
connecting cables — LASER LINK ······································ 1-8

Editing

Editing methods ····································································· 1-9
Hooking up to a VCR or stereo system ································· 1-9
Basic editing (When recording on this VCR) ························ 1-9
Insert editing ········································································ 1-10

SmartFile function

About the SmartFile function ·············································· 1-10
Recording using the SmartFile function ······························ 1-11
Selecting and playing a program ········································· 1-13
Checking the contents of a tape ··········································· 1-13
Labeling a recorded program and tape ································ 1-14
Protecting a recorded program ············································· 1-15
Erasing the data of an unwanted program ··························· 1-15
Registering the contents of a recorded tape
in the SmartFile label ··························································· 1-16
Storing program data from the DIRECTV
digital satellite receiver (Program Data Download) ············ 1-16

Additional Information

Troubleshooting ··································································· 1-17
Index to parts and controls ··················································· 1-18

2-1.

UPPER CASE, FRONT PANEL BLOCK
ASSEMBLY ···································································· 2-1

2-2.

AN-19, DM-87, FR-163, JK-172,  PD-111 BOARDS ···· 2-1

2-3.

LR-15 BOARD, REAR PANEL ····································· 2-2

2-4.

AN-18, ML-18  BOARDS, SR MECHANISM DECK ·· 2-2

2-5.

POWER BLOCK, MA-360 BOARD ······························ 2-3

2-7.

INTERNAL VIEWS ························································ 2-4

2-8.

CIRCUIT BOARDS LOCATION ·································· 2-5

3-1.

OVERALL BLOCK DIAGRAMS ·································· 3-1

3-2.

VIDEO BLOCK DIAGRAM ·········································· 3-3

3-3.

SYSTEM CONTROL BLOCK DIAGRAM ··················· 3-5

3-4.

MODE CONTROL BLOCK DIAGRAM ······················· 3-7

3-5.

AV LINK BLOCK DIAGRAM ······································· 3-9

3-6.

AUDIO BLOCK DIAGRAM ········································ 3-11

3-7.

POWER BLOCK DIAGRAM ······································· 3-13

4-1.

FRAME SCHEMATIC DIAGRAM ································ 4-3

4-2.

PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS ············································ 4-5

• MA-360 (REC/PB HEAD AMP,

Y/C. AUDIO PROCESSOR, Y/C OUT,
SERVO/SYSTEM CONTROL, AUDIO,
MODE CONTROL, TUNER, POWER SUPPLY)

PRINTED WIRING BOARD ························· 4-5

• MA-360 (REC/PB HEAD AMP)(1/8)

SCHEMATIC DIAGRAM ······························ 4-7

• MA-360 (Y/C. AUDIO PROCESSOR)(2/8)

SCHEMATIC DIAGRAM ······························ 4-9

• MA-360 (Y/C OUT)(3/8)

SCHEMATIC DIAGRAM ···························· 4-11

• MA-360 (SERVO/SYSTEM CONTROL)(4/8)

SCHEMATIC DIAGRAM ···························· 4-13

• MA-360 (AUDIO)(5/8)

SCHEMATIC DIAGRAM ···························· 4-15

• MA-360 (MODE CONTROL)(6/8)

SCHEMATIC DIAGRAM ···························· 4-17

• MA-360 (TUNER)(7/8)

SCHEMATIC DIAGRAM ···························· 4-19

• MA-360 (POWER SUPPLY)(8/8)

SCHEMATIC DIAGRAM ···························· 4-21

• JK-172 (LINE 2 IN)

PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ···························· 4-24

• FR-163 (INDICATOR)

PRINTED WIRING BOARD ······················· 4-25

• FR-163 (INDICATOR)

SCHEMATIC DIAGRAM ···························· 4-27

• VD-29 (Y/C SEP, SYNC SEP)

PRINTED WIRING BOARD ······················· 4-29

• VD-29 (Y/C SEP, SYNC SEP)

SCHEMATIC DIAGRAM ···························· 4-31

• ML-18 (SMART FILE),

AN-18 (INNER SMART FILE SENSOR),
AN-19 (FRONT SMART FILE SENSOR),
RJ-83 (CPD IN)

PRINTED WIRING BOARDS ····················· 4-33

• ML-18 (SMART FILE),

AN-18 (INNER SMART FILE SENSOR),
AN-19 (FRONT SMART FILE SENSOR),
RJ-83 (CPD IN)

SCHEMATIC DIAGRAMS ·························· 4-35

• LR-15 (VIDEO/AUDIO PROCESSOR)

PRINTED WIRING BOARD ······················· 4-37

• LR-15 (VIDEO/AUDIO PROCESSOR)

SCHEMATIC DIAGRAM ···························· 4-39

• DM-87 (USER CONTROL)

PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ···························· 4-41

• PD-111 (V/A SEPARATOR)

PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ···························· 4-43

• SRV886UC (POWER SUPPLY)

PRINTED WIRING BOARD ······················· 4-45

• SRV886UC (POWER SUPPLY)

SCHEMATIC DIAGRAM ···························· 4-47

— 4 —

5-1.

SYSTEM CONTROL —
VIDEO BLOCK INTERFACE
(MA-360 BOARD IC161) ··············································· 5-1

5-2.

SYSTEM CONTROL —
SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-360 BOARD IC161) ··············································· 5-1

5-3.

SYSTEM CONTROL —
MECHANISM INTERFACE
(MA-360 BOARD IC161) ··············································· 5-2

5-4.

SYSTEM CONTROL —
SYSTEM CONTROL PERIPHERAL CIRCUIT
INTERFACE (MA-360 BOARD IC161) ························ 5-2

5-5.

SYSTEM CONTROL —
AUDIO BLOCK INTERFACE
(MA-360 BOARD IC161) ··············································· 5-2

5-6.

SERVO/SYSTEM CONTROL MICROPROCESSOR
PIN FUNCTIONS
(MA-360 BOARD IC161) ··············································· 5-3

5-7.

TUNER/TIMER CONTROL MICROPROCESSOR
PIN FUNCTIONS
(MA-360 BOARD IC460) ··············································· 5-4

6-1.

MECHANICAL ADJUSTMENT ··································· 6-1

6-2.

ELECTRICAL ADJUSTMENT ······································ 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. Setup for adjustment ························································ 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. Power Supply Voltage Check (MA-360 board) ··············· 6-2
2-3.

SERVO SYSTEM ADJUSTMENT ································· 6-3

2-3-1. RF Switching Position Adjustment

(MA-360 Board) ······························································ 6-3

2-3-2. Hi-Fi Switching Position Adjustment

(MA-360 Board) ······························································ 6-3

2-4.

VIDEO SYSTEM CHECK ············································· 6-4

2-4-1. Playback Level Check (MA-360 board) ·························· 6-4
2-4-2. Sync AGC Check (MA-360 board) ································· 6-4
2-4-3. Deviation Check ······························································ 6-4
2-5.

AUDIO SYSTEM ADJUSTMENT ································· 6-5

2-5-1. Hi-Fi Audio System Check ·············································· 6-5
1.

E-E Output Level Check ················································· 6-5

2.

Overall Level Characteristics Check ······························· 6-5

2-5-2. Normal Audio System Adjustment ·································· 6-5
1.

ACE Head Adjustment ···················································· 6-5

2.

Frequency Response Check ············································· 6-5

2-6.

Laser Link System Adjustment ······································· 6-6

2-6-1. Laser Link video output Level Adjustment

(LR-15 Board) ································································· 6-6

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