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Sony HB-F500P and HB-F500F Service Manual

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The HB-F500P/F500F Service Manual is Sony's English-language service manual for the two European versions of the Sony HB-F500: the HB-F500P (AEP model) and the French HB-F500F. The copy hosted here is Hans Otten's (HansO) 2001 scan of an original supplied by Bas Kornalijnslijper of the MCWF, split into two PDFs of 26 and 72 pages. It comes from the MSX Archive.[1] The MSX Resource Center links the same two files from its page on the HB-F500 series.[2]

Contents

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The manual's own contents list, with its printed page numbers and the PDF pages where they have been checked.

Chapter Sections Printed pages PDF
1. Operation Specifications, controls, connections, start-up, keyboard, setting the calendar clock, life of the back-up battery, formatting a disk, memory map, MSX-BASIC version 2.0 reference chart 1-1 to 1-9 and the chart Part 1, pages 2 to 26
2. Service information Removing the front panel, the EX-101 board, the floppy disk drive and the heat sink; service parts and abbreviations 2-1 and 2-2 Part 2, pages 3 and 4
3. Circuit description Memory map, I/O ports, S-3527 (MSX-SYSTEM), slot extension, main RAM, ROM selection, floppy circuit (CXD1032Q and WD2793), timer, V9938, keyboard encoder 3-1 onwards Part 2, pages 5 to 18
4. Block diagram Overall 4-1 onwards Part 2, from page 19
5. Schematic diagram and printed circuit board Semiconductor pin assignments; frame; PU-35; PS-101 and LE-38; EX-101; CN-120 and CN-109; DUS-111; CN-110 and keyboard 5-1 to 5-33 Part 2, pages 23 to 56; supply on page 47
6. Alignment CPU clock, timer clock, RGB output levels, floppy controller VCO and read pulse width 6-1 and 6-2 Part 2, pages 57 and 58
7. Repair parts and fixture Exploded views (cover, chassis, keyboards for the F and P models); electrical parts lists for the PU-35, DUS-111, CN-109, CN-110, CN-120, EX-101, LE-38, PS-101 and KEY boards; packing and accessories 7-1 to 7-15 Part 2, pages 59 to 71
Correction Front bezel part number on page 7-3 Part 2, page 72

What it settles

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  • The specification of the European models: 220 V, 45 W, three cartridge slots, 64 KB of main RAM and 128 KB of VRAM, and a 720 KB drive.[3]
  • How the front panel, the slot board, the drive and the supply heat sink come out.[4]
  • The supply: a linear design on the PS-101 board with an STR9005 for +5 V, an SI-3122V for +12 V and an NJM79L12A for −12 V, and the value of every capacitor on it.[5][6]
  • The electrolytic capacitors on the PU-35 main board, the DUS-111 video board, the EX-101 slot board and the keyboard.[7][8][6]
  • The memory map with RAM split between slots 0-0 and 0-2, and the chip-level description of the S-3527, the floppy interface and the clock.[9][10]
  • The alignment points and figures.[11]

These figures are used in the Sony HB-F500 General Maintenance, Sony HB-F500 Troubleshooting Guide and Sony HB-F500 Capacitor Replacement Guide.

What it does not contain

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  • Nothing on the Japanese HB-F500. Its main board is a different design (PU-46, 1-617-525-12), with different IC numbers, a 100 V supply and a Kanji ROM.[12][13][2]
  • Three values differ between the supply schematic and the parts list: C902 is 15,000 µF on the schematic and 10,000 µF in the list, C903 is 330 µF on the schematic and 470 µF in the list, and D902 and D903 are S2V20F on the schematic and U05G in the list.[5][6]
  • The DUS-111 parts list gives the same Sony part number, 1-123-306-00, for C527 at 10 V and for C529 at 6.3 V.[8]
  • The CPU clock figure is printed as "3.578281Hz ±5Hz", and the blue and green RGB levels are both given as adjusted with RV502.[11]
  • The Ni-Cd back-up battery appears in the circuit description (BATT501 on the DUS-111 board) and the operating chapter, but the scanned parts lists do not give it a part number.[10][14]
  • No fault-finding chart.

Pages that cite this document

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Part 1

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Download: Sony HB-F500P HB-F500F Service Manual Part 1.pdf

Part 2

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Download: Sony HB-F500P HB-F500F Service Manual Part 2.pdf

References

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  1. ↑ Index of /pub/msx/docs/service_manuals, MSX Archive—link(accessed 2026-10-21) Directory of MSX service manuals. The Sony files are sonygb7sm, sonyhb101sm, sonyhbd30sm, sonyhbd50sm, sonyhbf1xdsm, sonyhbf9psm, sonyhbf500sm1 and sm2, sonyhbf700psm, sonyhbg900apsm1 and 2, sonyhbg900psm1 and 2, sonyhbk30sm, sonyhbm232sm, sonyhbm512sm, sonyhp5575sm, sonyprnc41sm and sonysdc500sm; none is for the HB-701 or HB-701FD. The HB-F500P/F500F manual is in two parts, sonyhbf500sm1.pdf (1.4 MB) and sonyhbf500sm2.pdf (6.5 MB).
  2. ↑ 2.0 2.1 Category:Sony HB-F500, MSX Resource Center wiki—link(accessed 2026-10-21) The HB-F500 series, Sony's first MSX2: HB-F500 (Japan, 1985, 100 V, KBD-1 keyboard, composite and RGB21 outputs, two cartridge slots, Kanji ROM), HB-F500F (France, 1986, 220 V, AZERTY, RGB DIN, three slots) and HB-F500P (Europe, 1986, 220 V, composite and RGB DIN, three slots); all cream white, with a 720 KB 3.5-inch drive and separate keyboard; Yamaha S3527 and V9938; Sharp LH0080A; WD2793A-PL; 64 KB RAM split into 32 KB blocks in slots 0-0 and 0-2 on the first Japanese version (serial numbers below 5500) and on the export models, which can crash poorly written software; the second Japanese version, from serial number 5500, has the RAM in slot 3-2; connector for a second drive (HBD-30W); price ¥128,000 in Japan. The export models are based on the first Japanese version, and the RAM layout was not changed in the European range until the HB-F700, which was not sold in Japan.
  3. ↑ Sony, HB-F500P/F500F Service Manual, part 1, PDF page 3 (printed page 1-2), specifications of the HB-F500P: Z80A at 3.58 MHz with one wait state in each M1 cycle; ROM 64 KB (BASIC 48 KB, Disk BASIC 16 KB); RAM 192 KB (main RAM 64 KB, VRAM 128 KB); V9938; RGB output 8-pin DIN (0 to 0.7 V, 75 ohms); audio/video output 6-pin DIN (composite 1 V p-p, 75 ohms); sound 8 octaves, three tones and one noise channel; cassette 8-pin DIN, 1200 or 2400 bps, with remote control; printer 14-pin, TTL, 8-bit parallel; two 9-pin controller connectors; three MSX cartridge slots; keyboard KBD-1P, 90 keys; drive for 3.5-inch single- or double-sided disks, 1 MB unformatted, 720 KB formatted (512 bytes per sector, 9 sectors per track, 80 cylinders, 160 tracks), MFM, 300 rpm, 250 kbit/s, average access 350 ms; 220 V AC, 50/60 Hz, 45 W (main unit only); operating 5 to 35 °C, 20 to 80 % humidity; main unit about 355 × 76 × 325 mm (w/h/d) and 6.3 kg; keyboard about 409 × 32 × 183 mm and 1.2 kg. See Sony HB-F500P and HB-F500F Service Manual.
  4. ↑ Sony, HB-F500P/F500F Service Manual, part 2, PDF pages 3 and 4 (printed 2-1 and 2-2), removal: front panel (upper case off, six front panel screws, unplug CNP26 on the PU-35 board, pull the panel forward); EX-101 board (upper case and front panel off, four cartridge holder screws, two cartridge holders, unplug CNP19, CNP13 and CNP11 on the PU-35 board, pull the board out); floppy drive (upper case off, unplug the two connectors at the rear of the drive, remove two drive screws, slide the drive out; the front panel need not come off); heat sink (upper case off, loosen the nine bottom plate screws, remove two screws holding the PS-101 board to the bottom plate and two heat sink screws, and keep the insulating sheet). Components marked with a warning triangle are safety-critical and must be replaced with the Sony part.
  5. ↑ 5.0 5.1 Sony, HB-F500P/F500F Service Manual, part 2, PDF page 47 (printed 5-25), schematic of the PS-101 and LE-38 boards: mains from CN901 through S901 (power switch, with C920 2200 pF 400 V across it), fuse F901 (T630mA) and line filter L901 with C917 and C918 (0.022 µF 250 V) to the 220 V primary of T901. An 8 V winding feeds bridge D901 (D5FB20), reservoir C901 (22,000 µF 16 V) and IC901 (STR9005) for +5 V, output capacitor C907 (100 µF 10 V). A 16 V winding feeds D902 (S2V20F), C902 (printed 15,000 µF 25 V) and IC902 (SI-3122V) for +12 V, output C908 (100 µF 16 V). A second 16 V winding feeds D903 (S2V20F) and D904 (10E2), C903 (printed 330 µF 35 V) and IC903 (NJM79L12A) for −12 V, output C909 (100 µF 16 V). The rails leave on CNP11 for CN12 on the PU-35 board. The power lamp D905 (GL-3NG5) is on the LE-38 board.
  6. ↑ 6.0 6.1 6.2 Sony, HB-F500P/F500F Service Manual, part 2, PDF pages 70 and 71 (printed 7-14 and 7-15), electrical parts lists. PS-101 board: C901 1-125-413-00 electrolytic 22,000 µF 16 V; C902 1-124-772-11 electrolytic 10,000 µF 25 V; C903 1-123-348-00 electrolytic 470 µF 35 V; C904 to C906 film 0.33 µF 50 V; C907 1-123-307-00 electrolytic 100 µF 10 V; C908, C909 1-123-333-00 electrolytic 100 µF 16 V; C910 to C916 ceramic 0.022 µF 50 V; C917, C918 1-130-456-00 film 0.022 µF 250 V and C920 1-161-742-00 ceramic 0.0022 µF 400 V, all marked safety-critical; D901 D5FB20F; D902, D903 U05G; D904 10E-2; F901 1-532-284-00 fuse, time-lag 0.63 A (safety-critical); IC901 STR9005; IC902 SI-3122V; IC903 NJM79L12A; L901 coil (safety-critical). EX-101 board: C69, C75 1-123-306-00 electrolytic 47 µF 6.3 V; C70, C71 1-123-369-00 electrolytic 4.7 µF 25 V. KEY board: C6 1-124-896-00 electrolytic 33 µF 16 V. LE-38 board: D905 GL-3NG5. CN-110 board: CN20, 13-pin jack. CN-120 board: 34-pin connector.
  7. ↑ Sony, HB-F500P/F500F Service Manual, part 2, PDF pages 65 and 66 (printed 7-9 and 7-10), electrical parts list, PU-35 board (A-8080-134-A for the AEP model, A-8080-151-A for France). Electrolytics: C6 1-123-298-00 470 µF 6.3 V; C12 1-123-382-00 3.3 µF 50 V; C17, C29, C96 1-123-332-00 47 µF 16 V; C25, C26, C38, C54, C93 1-123-369-00 4.7 µF 25 V; C41, C80 1-123-306-00 47 µF 6.3 V; C46 1-123-318-00 33 µF 6.3 V; C65 1-123-356-00 10 µF 16 V; the rest are ceramic and film. CV1 and CV2 trimmer capacitors. ICs include IC5 RP5C01, IC6 V9938, IC7, IC12, IC58 and IC59 MB81464-12, IC18 S-3527, IC26 LH0080A, IC41 MB83256-251 (AEP) or -253 (France), IC47 MB83256-256 (AEP) or -254 (France), IC48 and IC54 µPD41254C-15, IC50 CXD1032Q, IC52 TL431CP and IC56 WD2793A-PL02.
  8. ↑ 8.0 8.1 Sony, HB-F500P/F500F Service Manual, part 2, PDF page 68 (printed 7-12), electrical parts list, DUS-111 board (with the PAL encoder 1-464-577-11 on the AEP model). Electrolytics: C501, C506, C510, C515 1-123-310-00 470 µF 10 V; C502, C507, C509, C511 1-123-307-00 100 µF 10 V; C504, C508, C512, C514 1-123-369-00 4.7 µF 25 V; C505, C516 1-123-333-00 100 µF 16 V; C513 1-123-332-00 47 µF 16 V; C524 1-123-379-00 0.47 µF 50 V; C527 1-123-306-00 47 µF 10 V; C529 1-123-306-00 47 µF 6.3 V. CN501 and CN502 8-pin DIN sockets, CN503 6-pin DIN; IC501 NJM78M09A; IC502 CX-7925B; RV501 to RV503 1 kΩ presets.
  9. ↑ Sony, HB-F500P/F500F Service Manual, part 2, PDF pages 5, 6, 10, 11 and 13 (printed 3-1 to 3-7): slot 0 is expanded; MSX2 BASIC ROM in slot 0-0 pages 0 and 1; main RAM in slot 0-0 pages 2 and 3 and slot 0-2 pages 0 and 1; extended BASIC and Disk BASIC share one 32 KB ROM (IC47) in slot 0-1; IC18 (S-3527, MSX-SYSTEM) includes the PPI and the sound generator; I/O ports 90H/91H printer, 98H/99H VDP, A0H to A2H PSG, A8H to ABH PPI, B4H/B5H timer; the floppy interface IC50 (CXD1032Q) decodes Disk BASIC and the WD2793 registers (IC56) at 7FF8H to 7FFFH.
  10. ↑ 10.0 10.1 Sony, HB-F500P/F500F Service Manual, part 2, PDF page 15 (printed 3-11), timer circuit: a 24-hour clock, IC5 (RP5C01), backed up by a built-in Ni-Cd battery; the back-up supply comes from BATT501 on the DUS-111 board.
  11. ↑ 11.0 11.1 Sony, HB-F500P/F500F Service Manual, part 2, PDF pages 57 and 58 (printed 6-1 and 6-2), alignment. A BASIC adjusting program turns the screen white for the RGB levels (W key), starts the timer clock test (S key) and cancels it (R key). CPU clock: frequency counter on IC26 pin 6, printed specification "3.578281Hz ±5Hz", adjusted with CV on the PU-35 board. Timer clock: 100 kΩ pull-ups between IC5 and +5 V, counter on IC11 pin 15, 15.9999 to 16.0001 Hz, CV1. RGB levels with an RGB monitor connected to CN501 or the outputs terminated in 75 ohms: red at CN501 pin 6 (RV501), blue at pin 8 and green at pin 7 (printed as RV502 for both), each 0.7 V ±0.02 V. FDC, three minutes after switch-on with TP5 grounded: VCO 250 kHz ±1 kHz at TP4 (RV1); read pulse width 0.5 µs ±10 ns at TP3 (RV2); remove the jumper afterwards.
  12. ↑ File:Sony HB-F500 main board.jpg, main board of a Japanese HB-F500 photographed for the MSX Resource Center wiki (uploaded by Mars2000you, 7 January 2023). Read from it: printed PU-46 and 1-617-525-12; the WD2793A-PL floppy controller is IC52 on this board.
  13. ↑ Rating label of a Japanese HB-F500, photographed for the MSX Resource Center wiki (File:Sony HB-F500 rating label.jpg, uploaded by Mars2000you, 7 January 2023): "MODEL HB-F500 HOME COMPUTER", "100V 47W 50/60Hz", ソニー株式会社, Made in Japan.
  14. ↑ Sony, HB-F500P/F500F Service Manual, part 1, PDF page 8 (printed 1-7): the calendar clock is backed up by a nickel-cadmium battery. After the HB-F500P has been on for 8 hours, the battery keeps the clock for 1 week with the machine off; it recharges whenever the machine is on, and a full charge lasts about 2 months. When it is weak the clock does not keep time and the memory-switch settings (title, prompt, screen and beep) are lost; Sony advises switching the machine on from time to time.


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