TEAC W-860R
Service Manual

W-860R
2 ADJUSTMENTS AND CHECKS
調��確�

2-1 MECHANICAL ADJUSTMENT
2-1-1 Wow and flutter (playback method)
In both FWD and REV play modes, these measurements should be made at the beginning, middle, and the end of the tape. 1. Connect a wow-and-flutter meter to the LINE OUT. 2. Load and play a TEAC MTT-111N test tape. 3. Check that the readings on the wow-and-flutter meter is within 0.19% (JIS WTD).

2-1 ����調�
2-1-1 �������(���) FWD, REV両�������巻���中��巻���測� ��� 1. LINE OUT端������������������� 2. ������MTT-111N������ 3. ���������0.19% (JIS WTD) 以������� 確����

2-1-2 Tape speed
1. Connect a frequency counter to the LINE OUT. 2. Load a TEAC MTT-111N test tape and play in FWD direction the beginning of the test tape. 3. Adjust each variable resistor to get the following values.

2-1-2 ������� 1. LINE OUT端���波������������ 2. ������MTT-111N�巻����FWD������ �� 3. �波����表�����������調�VR�調� ��� Adjustment point
調���

CONTROL PCB

Adjustment value
調��

HIGH speed
REC/PLAY

VR2 VR1 VR4 VR3

6,000±30Hz 3,000±20Hz 6,000±30Hz 3,000±20Hz

�
LOW speed HIGH speed

Short HIGH SPEED Open LOW SPEED
REC/PLAY

�
LOW speed

W332

VR2 VR1 W333

VR3

VR4

Fig. 2-1 4. In play mode, check that the following values are obtained at the beginning and end of the tape. Speed drifting: Within 120Hz (HIGH speed) Within 60Hz (LOW speed) 4. 巻����巻������������確���� ����120Hz以� �������� 60Hz以� ��������

2-1-3 Reel torque
1. Load the cassette torque meter on the deck and read the pointer indication on the dial scale for each tape transport operation. The measured torque should be within the following specified values. Take-up: 30 to 70g-cm Supply: 1.5 to 6g-cm FF/REW: 70 to 150g-cm Torque meter MTT-8111W: Forward torque & back tension MTT-8121W: Reverse torque & back tension MTT-8242: Fast forward & rewind static torque

2-1-3 ������ 1. ���������������測�������� �������確���� ����������30�70g-cm ������������1.5�6g-cm ���/巻������70�150g-cm
�������

MTT-8111W�巻�������������� �FWD�� MTT-8121W�巻�������������� �REV�� MTT-8242 �����巻�����

3