Digital8 Mode; How To Enter Record Mode Without Cassette; How To Enter Playback Mode Without Cassette; Overall Tape Path Check - Sony DCR-TRV820 Service Manual

2-2.

DIGITAL8 MODE

2-2-1. HOW TO ENTER RECORD MODE WITHOUT
CASSETTE
1) Connect the adjustment remote commander to the LANC jack.
2) Turn the HOLD switch of the adjustment remote commander
to the ON position.
3) Close the cassette compartment without the cassette.
4) Select page: 3, address: 01, and set data: 0C, and press the
PAUSE button of the adjustment remote commander.
(The mechanism enters the record mode automatically)
Note: The function buttons becomes inoperable.
5) To quit the record mode, select page: 3, address: 01, set data:
00, and press the PAUSE button of the adjustment remote com-
mander. (Whenever you want to quit the record mode, be sure
to quit following this procedure)
2-2-2. HOW TO ENTER PLAYBACK MODE WITHOUT
CASSETTE
1) Connect the adjustment remote commander to the LANC jack.
2) Turn the HOLD switch of the adjustment remote commander
to the ON position.
3) Close the cassette compartment without the cassette.
4) Select page: 3, address: 01, and set data: 0B, and press the
PAUSE button of the adjustment remote commander.
(The mechanism enters the playback mode automatically)
Note: The function buttons becomes inoperable.
5) To quit the playback mode, select page: 3, address: 01, set
data: 00, and press the PAUSE button of the adjustment re-
mote commander. (Whenever you want to quit the playback
mode, be sure to quit following this procedure)

2-2-3. OVERALL TAPE PATH CHECK

1. Recording of the tape path check signal

1) Clean the tape running side (tape guide, capstan shaft, pinch
roller).
2) Connect the adjustment remote commander to the LANC jack.
3) Turn the HOLD switch of the adjustment remote commander
to the ON position.
4) Set to the camera recording mode.
5) Select page: 3, address: 1C, set data: 5D, and press the PAUSE
button of the adjustment remote commander.
6) Record for several minutes.
7) Release the camera recording mode.
8) Select page: 3, address: 1C, set data: 00, and press the PAUSE
button.

2. Tape path check

1) Clean the tape running side (tape guide, capstan shaft, pinch
roller).
2) Connect the adjustment remote commander to the LANC jack.
3) Turn the HOLD switch of the adjustment remote commander
to the ON position.
4) Connect an oscilloscope to FU-141 board CN259 via the CPC-
13 jig (J-6082-443-A).
Channel 1: FU-141 board, CN259 Pin qh (Note)
External trigger: FU-141 board, CN259 Pin qd
Note: Connect a 75 Ω resistor between Pins qh of CN259 and
6 (GND).
5) Select page: 2, address: 2E, and set data: 01.
6) Playback the tape path check signal.
7) Select page: 3, address: 33, and set data: 08.
8) Select page: 3, address: 26, and set data: 31.
9) Check that the oscilloscope RF waveform is flat at the en-
trance and exit.
If not flat, perform "2-1-2. TAPE PATH ADJUSTMENT " of
"2-1. Hi8/STANDARD 8 mm MODE".
10) Select page: 3, address: 26, and set data: 00.
11) Select page: 3, address: 33, and set data: 00.
12) Select page: 2, address: 2E, and set data: 00.
Pin qh
Pin qd
5-35
Must be flat
Fig. 5-2-2