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The purchased manual is an high quality scan of the original Philips paper-based Service Manual. I am very satisfied!
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The purchased manual is an scan of the original Panasonic paper-based Service Manual. Unfortunately the contrast is not perfect, but I am satisfied anyway!
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The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
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It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
3.5.8 Sub DET [HR-S6700KR]
Signal Mode Equipment Adjustment part Specified value Adjustment tool (A) (B) (C) (F) (G) (H) � RF signal (sound carrier: S2) � Tuner � EE � Audio level meter � IC1501 pin 26 � T1501 (SUB DET) � Minimum distortion � LPF (30 kHz), HPF (400 Hz)
3.6 SYSCON CIRCUIT Note: � When perform this adjustment, remove the Mechanism assembly. 3.6.1 Timer clock
Signal Mode Equipment (A) (B) (C) � No signal � EE � Frequency counter � IC3001 pin61 � IC3001 pin24 � C3026 + and � � C3025 (TIMER CLOCK) � 1024.008 ± 0.001 Hz (976.5549 ± 0.0010 µsec)
Measuring point (D)
(1) Set the sound carrier of the RF signal generator to S2. (2) Connect the adjustment tool (H) to the measuring point (D). Then connect the equipment (C) to the adjustment tool (H). (3) Adjust the Adjustment part (F) so that the distortion level of the measuring point (D) becomes the specified value (G). 3.5.9 Pilot VCO [HR-S6700KR]
Signal Mode Equipment (A) (B) (C) � No signal � Tuner � EE � Frequency counter � IC1501 pin 11 � C1510 (+) terminal � C1510 (�) terminal � VR1502 (PILOT VCO) � 210 ± 5 Hz
Measuring point (D1) Short point (D2) (D3) Adjustment part (F) Specified value (G)
Measuring point (D1) Short point (D2) (D3) Adjustment part Specified value (F) (G)
(1) Connect the frequency counter to the measuring point (D1). (2) Connect the short wire between the short point (D2) and Vcc (5V). (3) Short the leads of capacitor (D3) once in order to reset the microprocessor of the SYSCON. (4) Disconnect the short wire between the short point (D2) and Vcc then connect it again. (5) Adjust the Adjustment part (F) so that the output frequency becomes the specified value (G).
(1) Connect the short wire between the short points (D2) and (D3). (2) Connect the equipment (C) to the measuring point (D1). (3) Adjust the Adjustment part (F) so that the frequency of the measuring point (D1) becomes the specified value (G). (4) Disconnect the short wire between the short points (D2) and (D3). 3.5.10 Separation [HR-S6700KR]
Signal Mode Equipment Adjustment part Specified value Adjustment tool (A) (B) (C) (F) (G) (H) � Sweep generator output (90 dB, 1 kHz) � EE � Oscilloscope � IC1501 pin 19 � VR1501 (SEPARATION) � Minimum level � Sweeper probe (See Fig. 3-5-10a.)
Measuring point (D)
Shorter than 8 cm
Shield
C : 1000 P R : 75� Earth
Out
Shorter than 5 cm
Fig. 3-5-10a
Sweeper probe
(1) Use the adjustment tool (H), supply 1 kHz R-only modulated IF signal to IF terminal of U/V tuner (front end). (2) Connect the equipment (C) to the measuring point (D). (3) Adjust the Adjustment part (F) so that the output level of the measuring point (D) becomes the specified value (G). 3-7
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