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SERVICE MANUAL

VIDEO CASSETTE RECORDER

In the interests of user-safety (Required by safety regula-
tions in some countries) the set should be restored to its
original condition and only parts identical to those specified
should be used.

MODELS VC-ME80GM/ME80HM

Page

1. SPECIFICATIONS ................................................................................................................. 3
2. DISASSEMBLY AND REASSEMBLY ................................................................................... 4

2-1 DISASSEMBLY OF MAJOR BLOCKS ............................................................................ 4
2-2 DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY .................................... 5
2-3 CARES WHEN REASSEMBLING ................................................................................... 6

3. FUNCTION OF MAJOR MECHANICAL PARTS ................................................................... 7
4. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS .................. 9

4-1 MECHANISM CONFIRMATION ADJUSTMENT JIG ...................................................... 9

5. ELECTRICAL ADJUSTMENT ............................................................................................. 29
6. MECHANISM OPERATION FLOWCHART AND TROUBLESHOOTING GUIDE .............. 33
7. ELECTRICAL TROUBLESHOOTING ................................................................................. 39
8. BLOCK DIAGRAM ............................................................................................................... 55
9. SCHEMATIC DIAGRAM AND PWB FOIL PATTERN ......................................................... 67

10. REPLACEMENT PARTS LIST ............................................................................................ 99
11. EXPLODED VIEW OF MECHANICAL PARTS ................................................................. 118
12. PACKING OF THE SET .................................................................................................... 122

SHARP

When checking the soldering side in the tape travel mode, make sure first that the tape has been loaded and then turn over

the PWB with due care to the primary power circuit.

Make readjustment, if needed after replacement of part, with the mechanism and its PWB in position in the main frame.

Insert the sensor's projection deep into the upper hole of the holder. Referring to the PWB, fix the sensors tight enough.

Refer to the symbol on the PWB and the anode marking of the part.

Adjust the notch of the part to the white marker of the symbol on the PWB. Do not allow any looseness.

Be careful not to confuse the setting direction of the parts in reference to the symbols on the PWB. Do not allow any

looseness.

Format: VHS PAL standard

Video recording system: Two rotary heads, helical scan system

Video signal: PAL/SECAM colour and B/G signals, 625 lines (VC-ME80GM)

PAL colour and I signals, 625 lines (VC-ME80HM)

Recording/playing time: 240 min max. with SHARP E-240 tape (PAL/SP)

480 min max. with SHARP E-240 tape (PAL/LP)

Tape width: 12.7mm

Tape speed: 23.39 mm/s (PAL/SP)

11.70 mm/s (PAL/LP)

Antenna: 75 ohm unbalanced

Receiving channel: VHF Channel E2-S41 (VC-ME80GM Only)

UHF Channel E21-E69

RF converter output signal: UHF Channel E21-E69 (Preset to CH E36)

Power requirement: AC230V, 50Hz (VC-ME80GM), AC230V~240V, 50Hz (VC-ME80HM)

Power consumption: Approx. 19 W (VC-ME80GM), Approx. 19 W (AC240V/50Hz) (VC-ME80HM)

Operating temperature: 5

°

C to 40

°

C

Storage temperature: –20

°

C to 55

°

C

Weight: Approx. 4.5 kg

Dimensions: 430 mm (W) x 290 mm (D) x 92 mm (H)

(16-15/16" x 11-7/16 " x 3-5/8")

VIDEO

Input: 1.0 Vp-p, 75 ohm

Output: 1.0 Vp-p, 75 ohm

S/N ratio: 45 dB (SP mode)

Horizontal resolution: Approx. 260 lines (SP mode with Supper Picture)

AUDIO 0 dBs = 0.775 Vrms

Input: Line1: –3.8 dBs, 10k ohm

Line2: –3.8 dBs, 10k ohm (VC-ME80HM Only)
Line3: –3.8 dBs, 47k ohm (VC-ME80HM Only)

Output: Line1: –3.8 dBs, 1k ohm

Line2: –3.8 dBs, 1k ohm (VC-ME80HM Only)
REAR RCA: –3.8 dBs, 1k ohm (VC-ME80HM Only)

S/N ratio: 46 dB min. (SP mode)

Frequency responce: 80 Hz ~ 10 kHz (SP mode)

80 Hz ~ 5 kHz (LP mode)

Hi-Fi Dynamic range: 90 dB TYP

Hi-Fi WOW and flutter: 0.005% Max.

Hi-Fi Frequency responce: 20 Hz ~ 20 kHz

Hi-Fi Distortion: 0.5% Max.

Hi-Fi Closs talk (at 1kHz): 55 dB min.

Accessories included: 75 ohm coaxial cable

Operation manual
Infrared remote control
Battery

As part of our policy of continuous improvement, we reserve
the right to alter design and specifications without notice.

Note: The antenna must correspond to the new standard DIN 45325

(IEC 169 - 2) for combined UHF/VHF antenna with 75 ohm connector.

: Remove 4 screws 

1

.

: Remove 4 screws 

3

 and 7 clips 

4

.

: Remove 2 screws 

5

, 1 screw 

6

, 3

screws 

7

, 1 screw 

8

.

1

1

1

5

7

3

8

3

6

4

7