Sharp XL-HP515 Service Manual - Page 5

Adjustments, [1] Adjustment, 1. Mechanism Tuner Cd - service manual

Get Sharp XL-HP515 PDF manuals and user guides View all Sharp XL-HP515 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 5 highlights

AXSMECeLuaHrdH-vrHkiAioPcePe5tP51M1T55aEnuRal2. ADJUSTMENTS XL-HP515 [1] ADJUSTMENT 1. MECHANISM SECTION • Driving Force Check Torque Meter Play: TW-2111 Specified Value Over 80 g • Torque Check Torque Meter Play: TW-2111 Fast forward: TW-2231 Rewind: TW-2231 Specified Value 30 to 80 g.cm 70 to 180 g.cm 70 to 180 g.cm 2. TUNER SECTION fL: Low-range frequency fH: High-range frequency • AM IF/RF Signal generator: 400 Hz, 30%, AM modulated Test Stage AM IF AM Band Coverage AM Tracking Frequency 450 kHz - 990 kHz Frequency Display 1,602 kHz 531 kHz 990 kHz Setting/ Adjusting Parts T351 (fL): T306 1.1 ± 0.1 V (fL): T303 Instrument Connection *1 *2 *1 *1. Input: Antenna Output: TP302 *2. Input: Antenna Output: TP301 • FM RF Signal generator: 1 kHz, 40 kHz dev., FM modulated Test Stage FM Band Coverage FM RF Frequency - 98.00 MHz (10-30 dB) Frequency Display 87.50 kHz 98.00 MHz Setting/ Adjusting Point T301 (fL): 1.3 ± 0.1 V L312 Instrument Connection *1 *2 *1. Input: Antenna Output: TP301 *2. Input: Antenna Output: Speaker terminal • FM IF Signal generator: 10.7MHz FM modulated Test Stage IF Frequency 10.7 MHz Frequency Display 98 MHz Setting/ Adjusting Point T302 (Turn the core of transformer T302 fully counterclock wise) Instrument Connection *1 *1. Input: Antenna Output: TP301 • Tape Speed Normal speed Test Tape MTT-111 Adjusting Point Variable Resistor in motor. Specified Value 3,000 ± 30 Hz Instrument Connection Speaker Terminal (Load resistance: 6 ohms) TAPE MECHANISM Tape Motor Variable Resistor in motor Figure 1 TUNER PWB-C SO302 FM ANTENNA TERMINAL AM LOOP ANTENNA CNP301 IC301 AM TRACKING fL L312 T303 TP301 T306 20 C393 T302 FM RF FM IF AM BAND T301 COVERAGE fL FM OSC T351 AM IF TP302 IC302 IC303 R356 Figure 2 ADJUSTMENT POINTS 3. CD SECTION • Adjustment Since this CD system incorporates the following automatic adjustment functions, readjustment is not needed when replacing the pickup. Therefore, different PWBs and pickups can be combined freely. Each time a disc is changed, these adjustments are performed automatically. Therefore, playback of each disc can be performed under optimum conditions. Items adjusted automatically 1) Offset adjustment (The offset voltage between the head amplifier output and the VREF reference voltage is compensated inside the IC.) * Focus offset adjustment * Tracking offset adjustment 2 - 1

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
XL-HP515
2 – 1
Audio
XL-HP515
Service Manual
XLHP515
Market
E
CHAPTER 2.
ADJUSTMENTS
[1] ADJUSTMENT
1. MECHANISM SECTION
•
Driving Force Check
•
Torque Check
2. TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
•
AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
•
FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
•
FM IF
Signal generator: 10.7MHz FM modulated
•
Tape Speed
3. CD SECTION
•
Adjustment
Since this CD system incorporates the following automatic adjust-
ment functions, readjustment is not needed when replacing the
pickup. Therefore, different PWBs and pickups can be combined
freely.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
Items adjusted automatically
1) Offset adjustment (The offset voltage between the head amplifier
output and the VREF reference voltage is compensated inside the
IC.)
*
Focus offset adjustment
*
Tracking offset adjustment
Torque Meter
Specified Value
Play: TW-2111
Over 80 g
Torque Meter
Specified Value
Play: TW-2111
30 to 80 g.cm
Fast forward: TW-2231
70 to 180 g.cm
Rewind: TW-2231
70 to 180 g.cm
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
AM IF
450 kHz
1,602 kHz
T351
*1
AM Band
Coverage
—
531 kHz
(fL): T306
1.1 ± 0.1 V
*2
AM Tracking
990 kHz
990 kHz
(fL): T303
*1
*1. Input: Antenna
Output: TP302
*2. Input: Antenna
Output: TP301
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Point
Instrument
Connection
FM Band
Coverage
—
87.50 kHz
T301 (fL):
1.3 ± 0.1 V
*1
FM RF
98.00 MHz
(10-30 dB)
98.00 MHz
L312
*2
*1. Input: Antenna
Output: TP301
*2. Input: Antenna
Output: Speaker terminal
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Point
Instrument
Connection
IF
10.7 MHz
98 MHz
T302
(Turn the
core of trans-
former T302
fully counter-
clock wise)
*1
*1. Input: Antenna
Output: TP301
Test Tape
Adjusting
Point
Specified
Value
Instrument
Connection
Normal
speed
MTT-111
Variable
Resistor in
motor.
3,000 ± 30 Hz
Speaker Ter-
minal (Load
resistance: 6
ohms)
Figure 1
Figure 2 ADJUSTMENT POINTS
TAPE MECHANISM
Tape
Motor
Variable Resistor in motor
AM
LOOP
ANTENNA
IC302
T351
T301
IC303
T303
T306
T302
L312
CNP301
SO302
IC301
TP302
TP301
AM TRACKING fL
AM BAND
COVERAGE fL
AM IF
FM RF
FM IF
FM OSC
FM ANTENNA
TERMINAL
TUNER PWB-C
20
R356
C393