Mechanism Section Adjustment; Hi8/Standard 8 Mm Mode; How To Enter Playback Mode Without Cassette; Tape Path Adjustment - Sony DCR-TRV820 Service Manual

5-2. MECHANISM SECTION
ADJUSTMENT
Mechanism Section adjustments, checks, and replacement of
mechanism parts, refer to the separate volume "8 mm Video Mecha-
nism Adjustment Manual VII
Note 1: NTSC model: DCR-TRV820/TRV820P
PAL model: DCR-TRV820E
2-1.

Hi8/STANDARD 8 mm MODE

2-1-1. HOW TO ENTER PLAYBACK MODE WITHOUT
CASSETTE
1) Refer to "Section 2. DISASSEMBLY" and supply the power
with the cabinet assembly removed. (So that the mechanical
deck can be operated.)
2) Connect the adjustment remote commander to the LANC jack.
3) Turn on the HOLD switch of the adjustment remote com-
mander.
4) Close the cassette compartment without loading a cassette and
complete loading.
5) Select page: 0, address: 01, and set data: 01.
6) Select page: F, address: 22, set data: 81, and press the PAUSE
button of the adjustment remote commander.
7) Select page: D, address: 10, set data: 10, and press the PAUSE
button of the adjustment remote commander.
8) Select page: 2, address: 2E, and set data: 02.
9) Press the PLAY button of the unit.
Note 2: Be sure to carry out "Processing after checking Opera-
tions" after checking the operations.
Set the data of page: D, address: 10 to "12", if the sensor
ineffective mode, forced VTR power supply ON mode is
to be used together.
[Procedure after checking operations]
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 2E, and set data: 00.
3) Select page: F, address: 22, set data: 80, and press the PAUSE
button of the adjustment remote commander.
4) Select page: D, address: 10, set data: 00, and press the PAUSE
button of the adjustment remote commander.
5) Select page: 0, address: 01, and set data: 00.
6) Disconnect the power supply of the unit.
[B Mechanism]
".

2-1-2. TAPE PATH ADJUSTMENT

1. Preparations for Adjustment

1) Clean the tape path face (tape guide, capstan shaft, pinch roller).
2) Connect the adjustment remote commander to the LANC jack.
3) Turn on the HOLD switch of the adjustment remote com-
mander.
4) Select page: 0, address: 01, and set data: 01.
5) Select page: 2, address: 2E, and set data: 02.
6) Select page: F, address: 22, set data: 88, and press the PAUSE
button of the adjustment remote commander.
(Be sure to perform "Processing after operation" after com-
pleting adjustments)
7) Connect the oscilloscope to FU-141 board CN259 via CPC-
13 jig (J-6082-443-A).
Channel 1: FU-141 board, CN259 Pin 5
External trigger: FU-141 board, CN259 Pin 8
8) Playback Hi8/standard 8 mm alignment tape for tracking.
(WR5-1NP(NTSC))
(WR5-1CP(PAL))
9) Check that the oscilloscope RF waveform is flat at the en-
trance and exit.
If not flat, adjust according to the separate volume "8 mm Video
Mechanical Adjustment Manual VII
10) Perform "Processing after operations", after completing ad-
justment.
CN259 of FU-141 board
Pin No. Signal Name
1 SWP
2 AFC F0
3 BPF MONI
4 F0 ADJ RF IN
5 PB RF
6 REG GND
7 RF AGC OUT
8 VC RF SWP
9 EVF BL
10 EVF BL 4.6V
[Procedure after operations]
1) Connect the adjustment remote commander, and turn on the
HOLD switch.
2) Select page: 0, address: 01, and set data: 01.
3) Select page: 2, address: 2E, and set data: 00.
4) Select page: F, address: 22, set data: 80, and press the PAUSE
button of the adjustment remote commander.
5) Select page: 0, address: 01, and set data: 00.
6) Remove the power supply from the unit.
5-34
[B Mechanism]
Pin No. Signal Name
11 VCO
12 EVF VG
13 DV RF SWP
14 RF IN
15 CAP FG
16 RF MON
17 TMS
18 TCK
19 TDO
20 TDI
Table 5-2-1
Must be flat
Fig. 5-2-1
".