Amp Adjustment - Yamaha HTR-5635 Service Manual

HTR-5635
14. MICROPROCESSOR INFORMATION
The version, checksum and the port specified by the
microprocessor are displayed. The signal is processed
using EFFECT OFF. The checksum is obtained by adding
the data at every 8 bits for each program area and
expressing the result as a 4-figure hexadecimal data.
s
"PORT: 0 0 0 0 0 0 0 0"
bit 7 6 5 4 3 2 1 0
*1 (Tuner mode)
I AMP ADJUSTMENT
Confirmation of Idling Current of Main (1) P. C. B.
• Right after power is turned on, confirm that the voltage
across the terminals of R113 (Main Lch), R133 (Main
Rch), R187 (Center), R151 (Rear Lch), R169 (Rear
Rch) are between 0.1mV and 10.0mV.
• If it exceeds 10.0mV, open (cutoff) R106 (Main Lch),
R126 (Main Rch), R183 (Center), R146 (Rear Lch),
R164 (Rear Rch) and reconfirm the voltage.
• Confirm that the voltage is 0.2mV ~ 15.0mV after 60
minutes.
26
Version
Release 1 digit / Main version 2 digit / DSP version 2 digit
Checksum
A: All area
Check of port setting for judging microprocessor function
Display of AAC function detection port state
)
Model type
Tuner mode 0 (*1)
Tuner mode 1 (*1)
Tuner with (1) / without (0)
RDS with (1) / without (0)
VIDEO format: PAL (1) / NTSC (0)
Tuner mode 1 Tuner mode 0 Tuner frequency
0 0 AM: 531-1611kHz/9kHz FM: 76.0-90.0MHz/100kHz
1 0 AM: 531-1611kHz/9kHz FM: 87.5-108.0MHz/50kHz
0 1 AM: 530-1710kHz/10kHz FM: 87.5-107.9MHz/200kHz
R destination, Port6: LOW AM: 530-1710kHz/10kHz FM: 87.5-108.0MHz/100kHz
1 1
(Not applied to HTR-5635)
HIGH AM: 531-1611kHz/9kHz FM: 87.5-108.0MHz/50kHz
0.1mV ~ 10.0mV
(DC)
R113 (MAIN Lch)
R133 (MAIN Rch)
R187 (CENTER)
Cut off
R106 (MAIN Lch)
R126 (MAIN Rch)
R183 (CENTER)
R146 (REAR Lch)
R164 (REAR Rch)
0.1mV ~ 10.0mV
(DC)
R151 (REAR Lch)
R169 (REAR Rch)